For more than 60 years Heyl has been supplying online measuring instruments for the determination of water hardness parameters as well as non-hardness parameters.
All Testomat instruments work on the basis of photometric measurement. The Heyl Testomat world of instruments offers you a comprehensive product portfolio ranging from limit value determination for hardness using Testomat 808 or for silicates using Testomat 808 SIO2 to full-scale measurement parameter determination, e.g. with the new instrument variants Testomat EVO and Testomat LAB.
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Measuring instruments
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Water Analyzers
- Devices
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Parameters
- Water hardness (Ca2+ and Mg2+)
- Total hardness (TH)
- Carbonate hardness (KH)
- Acid capacity (pH 4.3, KS 4.3) and p-value (pH 8.2, KS 8.2)
- Base capacity (KB82)
- Bromine (Br)
- Free Chlorine (HOCl)
- Total chlorine (CC)
- Chlorine dioxide (ClO2)
- Chromate & Chromium Cr(VI)
- Iron (II + III dissolved - Fe3O4)
- Silicate (SiO2 - dissolved)
- Ortho-Phosphat (P2O5)
- Polymere & Polyacrylate
- Monochloramine (NH2CL)
- TESTOMAT® - Accessories
- Spare Parts
- Service sets and maintenance cases
- Gas Measuring Instruments
- Hand-held measuring devices
- Benchtop measuring devices (laboratory equipment)
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Water Analyzers
- Chemistry
- Controls
- Electrodes and sensors
- Dosing technology
- Plant engineering
- Accessories
- Disinfection and Hygiene
- Training courses
- Service & Company
- Laboratory & Mobile Measurement Technology
Filter products
The Testomat® LAB TH devices determines the water hardness (residual total hardness) fully automatically by use of titration and has been developed for monitoring the water quality of water treatment plants, drinking water plants, industrial boilers and for monitoring process water, here in a package for monitoring two measuring points. In view of the fact that the Testomat® LAB TH total water hardness analysers were developed for use in multi-parameter systems or for connection to a higher-level control system, we hereby offer you both Testomat® LAB TH analysis devices in combination with the NeoTecMaster®, which was specially developed by our company, as a complete solution at a preferential price. The 4-channel NeoTecMaster® multi-parameter controller included in this package enables the processing of up to four measurement signals in this version. A signal input on the NeoTecMaster® , in this case the RS232 interface and one additional RS232 interface on the included NeoTec Slave module , are used by both Testomat® LAB TH to display the measured values, the trend and the status messages on the 5 inch screen. In addition to the on board RS232 interface, the NeoTecMaster® also has a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments). The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required, thus enabling the future realisation of further control concepts in a flexible manner. A module that fundamentally expands the range of functions and is already included in the scope of delivery is our NeoTec slave relay module with which you can add potential-free relay contacts to the overall system. You can freely assign these to the incoming measurement signals and thus, for example, implement limit value-related control concepts, as well as output measurement-related messages. Further advantages of the NeoTecMaster: Simple operation Integration of the Testomat® world of instruments, here in conjunction with two Testomat® LAB TH Integration into the existing control cabinet, alternatively we offer our NeoTecMaster® housing Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation) Available as built-in or surface-mounted variant Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format In addition, there are proven Testomat® LAB functionalities: Optimised water detection based on an optical measuring method RS232 interface for transmission of measured values and error messages Import and export of settings (basic programming) Logging of measurement data and messages/alarms via integrated SD card or optionally usable SDHC card (2GByte) Firmware update via SD card Execution of parameterisation by means of SD card or "Service Monitor" software via mini-USB (on the unit side) to USB 2.0 (e.g. PC/notebook) Multilingual software menu in German, English, French, Dutch, Portuguese Integrated self-test with continuous monitoring Automatic venting of the indicator line Compact design Performance profil Testomat® LAB TH: High-precision titration by means of piston metering pump Reliable and low-maintenance operation Minimal indicator and water consumption Analogue output 4 - 20 mA for transmission of measured values Programmable hardness unit in °dH, °f, ppm CaCO3, mmol/l Collective alarm output Indicator quantities: 500 ml bottles Analysis trigger: - Automatic interval operation (interval pause adjustable from 0-255 minutes) - External analysis input (start/stop) - Manual start Optional accessories available: OLED display Protective cover to increase the IP protection class of the Testomat® LAB TH devices NeoTecMaster instrument cover
Online Monitoring of Total Chlorine and Water Hardness with the T 2000 THCL Testomat 2000 THCL – Online analyzer by Heyl with photometric chlorine measurement and automatic titration The Testomat 2000 THCL is part of the T 2000 device family from Heyl, designed for simultaneous online monitoring of total chlorine content and water hardness. Using the photometric DPD method, it reliably measures total chlorine in the range of 0–2.5 mg/l (ppm), while fully automatic titration determines water hardness from 0.25 to 2.50 °dH. The device combines photometric total chlorine measurement with fully automatic water hardness titration in a 230 V system. Integrated limit relays allow direct implementation of alarm and control functions, while optional interfaces enable extended external data recording via SD card data loggers or analog current interfaces (e.g., 0/4–20 mA). Features of the Testomat 2000 THCL It measures total chlorine using the proven DPD method and simultaneously determines water hardness via automatic titration. Two independently programmable limit contacts allow direct monitoring and control of external processes, while an optional interface card stores data for long-term documentation or process monitoring. Applications of the Testomat 2000 THCL Monitoring of reverse osmosis systems Protection of reverse osmosis membranes from scaling due to hardness and damage from excessive chlorine Monitoring of softening and chlorination units in drinking water systems Performance Profile of the Testomat 2000 THCL Two independently programmable limit contacts for monitoring and control; analysis results can be recorded via optional interface card (current interface SK910) for a point or strip chart recorder (0/4–20 mA) or SD-Card data logger Testomat 2000® Menu-guided operation and programming via plain text display High measurement accuracy through precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External control Volume-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 failed analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Indicator quantities: 100 and 500 ml bottles Programmable maintenance interval for maintenance requests
Testomat 2000 – Online Analysis Device for Water Hardness and Other Parameters Continuous water quality monitoring with automatic titration and flexible parameter selection The Testomat 2000 is a versatile analysis device for the continuous determination of key water quality parameters such as water hardness, carbonate hardness, p-value, and minus m-value. The process photometer operates fully automatically with a precise piston dosing pump and plain-text menu display, allowing measurement, analysis, and control without manual intervention. Individually selectable indicators enable different parameters and measurement ranges, while internal limit contacts ensure reliable monitoring and alarm functions. Depending on the selected indicator, the device measures residual hardness, total hardness, carbonate hardness, p-value, or minus m-value fully automatically via precise titration. Two independently programmable limit contacts support automatic control and alarm functions, while external control options such as range-dependent measurement triggering or versions with SD card data logger are available for documentation and process analysis. What functions does the Testomat 2000 from Heyl offer? It combines modern measurement principles with practical control and evaluation functions. By selecting different indicator types, it can be used in a wide variety of applications. Two freely programmable limit values with adjustable hysteresis support monitoring tasks, and optional interfaces expand the device for complete data recording or integration with control systems. Applications for the Testomat 2000 Hardness Monitoring water quality in water treatment, blending, and drinking water systems Monitoring and quality control of softening systems with or without blending Monitoring and quality assurance of decarbonization systems Prevention of acid intrusion in decarbonization systems Boiler monitoring of steam boilers Performance Profile of the Testomat 2000 Simple, menu-guided operation and programming via plain-text display Measurement of residual hardness, total hardness, carbonate hardness, minus m-value, or p-value selectable via indicator choice Free choice of hardness units: °dH, °f, ppm CaCO3, or mmol/l High measurement accuracy due to precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External triggering Dynamic (exhaustion-dependent interval operation) Quantity-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measuring points (switching via external solenoid valves) Internal error documentation Programmable service address Indicator volumes: 100 and 500 ml bottles Programmable maintenance interval for maintenance requests
Testomat 2000 Antox for Online Water Analysis with Reductant Dosing Precise Water Hardness and Parameter Monitoring The Testomat 2000 Antox is a specialized version of the Testomat 2000 with an additional pump for dosing a reductant. It was specifically designed to eliminate measurement interference caused by oxidizing substances. The additional pump doses the reductant directly into the measurement chamber before the analysis begins, ensuring that the subsequent measurement is conducted under stable conditions. The precise piston dosing pump guarantees high measurement accuracy. The extra reductant dosing pump removes measurement errors caused by oxidizing substances in the sample water chamber. The water analysis is then automatically carried out using the standard procedure, allowing reliable measurement of residual hardness, total hardness, carbonate hardness, p-value, and minus m-value. Adjustable analysis triggering in interval or dynamic mode, external control options, and freely programmable limit contacts ensure flexible integration. What functions does the Testomat 2000 Antox offer? The selection of different indicators allows measurement of various parameters, and the precise piston dosing pump ensures reproducible results. Analysis can be triggered automatically in timed intervals or dynamically. External water meter signals can be used for analysis triggering. Additionally, there are two independently programmable limit contacts for automatic control and alarm functions. Where can the Testomat 2000 Antox be used? Oxidizing agents – especially chlorine – are present in water in many technical, municipal, and industrial applications. Other application areas include: Cooling water circuits Process water treatment Food and beverage industry Chemical industry Performance profile of the Testomat 2000 Antox Easy menu-guided operation and programming via plain text display Measurement of residual hardness, total hardness, carbonate hardness, minus m-value, and p-value selectable via indicator Choice of hardness units in °dH, °f, ppm CaCO3, or mmol/l High measurement accuracy through precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External control Dynamic (exhaust-dependent interval operation) Flow-dependent via water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measuring points (switching via external solenoid valves) Internal error documentation Programmable service address Indicator quantities: 100 and 500 ml bottles Programmable maintenance interval for service request
Online Bromine Analyzer for Process Monitoring Continuous Br2 analysis with automatic reagent dosing and limit monitoring The Testomat 2000 Br2 is an online analysis device for continuous monitoring of bromine (Br2) levels. After a short reaction time of approximately one minute, it delivers precise results in the range of 0–5.6 mg/L (ppm). The device features two independently programmable limit contacts for monitoring and controlling external processes. Analyses can be triggered automatically at intervals or via external signals, while internal error documentation and a programmable maintenance interval ensure reliability. The Testomat 2000 Br2 is suitable for monitoring disinfectant dosing and quality assurance of water in technical systems. After automatic addition of reagents, the measurement result is displayed on a plain-text screen, and two limit contacts can be used for switching or alarm functions. External controls or water meter signals can influence the analysis triggering. Functions of the Testomat Two independently programmable limit contacts allow monitoring of critical bromine concentrations and integration into automated control processes. Additionally, the device can monitor two measurement points using external solenoid valves. Typical Applications Swimming pools and indoor pools Process water in industry Water treatment plants Food and beverage industry Why is bromine measurement important? Bromine is used as a disinfectant and is only effective within a narrow concentration range. Too low bromine levels lead to insufficient disinfection, while too high levels can cause material damage, irritation, and unnecessary chemical consumption. Continuous bromine monitoring ensures safe dosing, protects equipment, and guarantees consistent water quality in swimming pools, process water, and industrial water applications. Performance Profile of the Testomat 2000 Br2 Analysis via automatic dosing of 2 reagents Measurement result display after approx. 1 minute reaction time 2 independently programmable limit contacts for monitoring and control tasks Menu-guided operation and programming via plain-text display High measurement accuracy thanks to precise piston dosing pump Analysis triggering: Automatic interval mode (interval pause adjustable from 0–99 minutes) External triggering Quantity-dependent via contact water meter Two independent limits with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests
Testomat 2000 CAL – Analysis Device with Calibration Function Reliable measurement of key water parameters with a water analysis device from Heyl The Testomat 2000 CAL is an online analysis device for the continuous monitoring of important water parameters such as total hardness, carbonate hardness, p-value, and minus m-value. With its integrated calibration function, the device ensures consistently precise measurement results. Freely definable limit values, switching outputs, and diagnostic functions support reliable process monitoring. Measurements can be triggered based on time or quantity, allowing the Testomat 2000 CAL to adapt flexibly to different plant concepts. Technical Features of the Testomat 2000 CAL The integrated calibration function increases measurement reliability and reduces manual intervention. Freely programmable switching outputs can reliably trigger warnings, dosing processes, or external control systems. The piston dosing pump ensures precise reagent dosing and consistent measurement results while requiring minimal maintenance. Where can the Testomat be used? Monitoring water quality in water treatment, blending, and drinking water systems Monitoring and quality assurance of softening systems with or without blending Monitoring and quality assurance of decarbonization systems Prevention of acid intrusion in decarbonization and desalination systems Performance Profile of the Testomat 2000 CAL Simple, menu-guided operation and programming via plain-text display Measurement of residual hardness, total hardness, carbonate hardness, minus m-value, and p-value selectable via indicator choice Free selection of hardness units: °dH, °f, ppm CaCO3, or mmol/l High measurement accuracy due to precise piston dosing pump Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External triggering Dynamic (exhaustion-dependent interval operation) Quantity-dependent via contact water meter Monitoring of two measuring points (switching via external solenoid valves) Internal error documentation Programmable service address Indicator volumes: 100 ml and 500 ml bottles Programmable maintenance interval for maintenance requests
Testomat 2000 CLF – Process Photometer for Free Chlorine Analysis Precise determination of free chlorine in water with the Testomat 2000 by Heyl The Testomat 2000 CLF is an automatic online process photometer for continuous monitoring of free chlorine content in water within a measuring range of 0–2.5 mg/l (ppm). In a wet-chemical measurement process, two reagents are automatically dosed, enabling photometric measurement of the chlorine value within a short reaction time. Two independently programmable limit contacts with adjustable hysteresis provide additional monitoring and control functions directly within the process. In addition to automatic interval measurements, external analysis triggering and quantity-dependent measurements via a contact water meter can be implemented. Technical Features of the Testomat 2000 for Free Chlorine Measurement The Testomat 2000 CLF features internal error documentation, optional interfaces for measurement value output (e.g. 4–20 mA or SD card data logger), and a programmable maintenance interval. By switching external solenoid valves, two measuring points can be monitored. Where can the Testomat be used? Monitoring of chlorination systems in drinking water or swimming pool applications Protection of reverse osmosis membranes Monitoring of chlorine-containing biocides and conditioning agents Performance Profile of the Testomat 2000 CLF Analysis using automatic dosing of two reagents Display of the analysis result after a reaction time of approximately 1 minute Two independently programmable limit contacts for monitoring and control tasks; recording of analysis results with optional plug-in card (current interface SK910) for point or line recorders (0/4–20 mA) or an SD card data logger Testomat 2000® Simple, menu-guided operation and programming via plain-text display High measurement accuracy due to precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External triggering Quantity-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) Adjustable switching functions Monitoring of two measuring points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests
Testomat 2000 CIO2 – Online Photometer for Chlorine Dioxide Monitoring Precise CIO2 measurement for water quality and process safety with Heyl technology The Testomat 2000 CIO2 is an online photometer for continuous monitoring of chlorine dioxide (CIO2) levels in water. It delivers reliable measurements up to approx. 4.7 mg/L within just a few minutes of reaction time. In a photometric process, two reagents are automatically dosed, and a precise concentration measurement is performed in a short reaction time. Results are available after approximately one minute. Two independently programmable limit contacts with adjustable hysteresis enable direct process monitoring and control, for example to trigger alarms or switch external devices. The piston dosing pump and internal diagnostic functions ensure high measurement accuracy. Technical Features of the Testomat 2000 CIO2 With a plain-text menu interface, programmable measurement intervals, and multiple freely adjustable limit contacts, the device provides a precise, stable, and versatile solution for continuous CIO2 (chlorine dioxide) monitoring. Additional functions such as external analysis triggering, quantity-dependent measurement, and internal diagnostics extend usability for complex process environments. Applications Drinking water supply Process water and industrial applications Swimming pools Food and beverage industry Performance Profile of the Testomat 2000 for Chlorine Dioxide Measurement Analysis via automatic dosing of 2 reagents Measurement result displayed after approx. 1 minute reaction time 2 independently programmable limit contacts for monitoring and control tasks; measurement recording with optional plug-in card (SK910 current interface) for a point or chart recorder (0/4–20 mA) or SD-card data logger Menu-guided operation and programming via plain-text display High measurement accuracy thanks to precise piston dosing pump Analysis triggering: Automatic interval mode (interval pause adjustable from 0–99 minutes) External triggering Dynamic (exhaustion-dependent interval mode) Quantity-dependent via contact water meter Two independent limits with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests
Testomat 2000 CrVI (High Measurement Range) – Analysis Device for Chromate and CrVI Extended analysis of chromate and CrVI for safe process monitoring The Testomat 2000 CrVI (High Measurement Range) is an analysis device for continuous monitoring of chromate and CrVI content in water with an extended measurement range (chromate up to 11.15 mg/L, CrVI up to 5.0 mg/L). Automated reagent addition and short reaction times provide fast and reliable results. The device allows continuous monitoring of chromate and CrVI. The photometric measurement method uses two automatically added reagents, ensuring reliable detection even at high concentrations. Measurement results are available within minutes. Two freely programmable limit values with hysteresis enable process alarms or control functions. Optionally, data can be recorded via 4–20 mA signal, recorder card, or SD-Card logger. Functional strengths of the T 2000 CrVI with extended measurement range from Heyl The device combines robust photometry with automatic reagent addition and provides precise measurement even at high concentrations. Easily programmable measurement intervals and short reaction times ensure efficient operation. Limit contacts allow direct process control or alarms, while optional interfaces enable seamless data logging. Typical applications of the online Testomat 2000 CrVI Monitoring chromate content in wastewater from electroplating facilities Monitoring wastewater in metalworking industries Performance profile of the T 2000 for chromate / CrVI measurement Analysis using automatic addition of 2 reagents Display of measurement result after approx. 2 minutes (measurement time without rinsing) Two independently programmable limit contacts for monitoring and control tasks Menu-guided operation and programming via plain-text display High measurement accuracy thanks to precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External triggering Dynamic (exhaustion-dependent interval operation) Quantity-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests
Testomat 2000 CrVI (Standard) – Reliable Monitoring of Chromate and CrVI Reliable control of Chromate and Chromium VI in process water with the T 2000 from Heyl The Testomat 2000 CrVI (Standard) is an online analysis device for monitoring Chromate (CrO42-) concentrations from 0 to 2.0 mg/l or Chromium VI (CrVI) concentrations from 0 to 1.0 mg/l. It uses a photometric analysis method with automatic reagent addition and delivers results after a short reaction time directly for process control. The device operates with a photometric measurement principle, where two reagents are automatically dosed. After approximately two minutes of reaction time, the measurement results are available. Two independently programmable limit contacts allow direct integration into monitoring or control systems. Technical Features of the Testomat 2000 CrVI The photometric measurement principle combined with automated reagent addition distinguishes the Testomat 2000 CrVI. This allows reliable measurement of Chromate and CrVI. Measurement data can also be logged via optional interfaces. The clear-text menu simplifies configuration and operation. Typical Applications of the T 2000 CrVI Monitoring chromate content in wastewater from electroplating facilities Control of wastewater in the metalworking industry Why is Monitoring Chromate and Chromium VI Important? Chromium VI is highly toxic and subject to strict legal limits. Continuous monitoring of Chromate and CrVI allows early detection of limit exceedances, protects humans and the environment, and ensures compliance with environmental regulations in process and wastewater systems. Performance Profile of the Testomat 2000 CrVI Analysis via automatic dosing of 2 reagents Measurement result displayed after approx. 2 minutes of reaction time (excluding flushing time) 2 independently programmable limit contacts for monitoring and control tasks Menu-guided operation and programming via clear-text display High measurement accuracy through precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External control Dynamic (exhaustion-dependent interval operation) Volume-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 faulty analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance request
Testomat 2000 DUO – Measurement of Key Water Parameters Heyl Testomat with two measurement points for analyzing various water parameters The Testomat 2000 DUO is an online analysis device that monitors two measurement points simultaneously, allowing parallel evaluation of different water parameters. Possible measured parameters include: Water hardness Carbonate hardness p-value (pH) Minus m-value The Testomat 2000 DUO expands the capabilities of traditional analysis devices by evaluating two measurement points at the same time. Automatic switching between measurement points reduces installation and operation effort, as no separate control unit is required. Measurement parameters are selected using easily replaceable indicators. Technical Strengths of the Testomat 2000 DUO The device uses automatic titration combined with a precise piston dosing pump, enabling exact measurements of different parameters at two measurement points. Various operating modes such as automatic intervals, external control, dynamic intervals, or volume-dependent measurements adapt the device to different plant configurations. Versatile Applications of the T 2000 DUO The Testomat 2000 DUO by Heyl is suitable for monitoring in water treatment, water blending, and drinking water systems. Please note that a Viton DosiClip is required for measuring carbonate hardness. This must be specified when ordering a DUO device. Performance Profile of the Testomat 2000 DUO Monitoring of 2 measurement points with different indicator types, e.g., water hardness with different measurement ranges or water and carbonate hardness Automatic measurement point switching Input to restrict to measurement point 1 available Menu-guided operation and programming with plain text display Measurement of residual hardness, total hardness, carbonate hardness, minus m-value, p-value via indicator selection Choice of hardness units: °dH, °f, ppm CaCO3, or mmol/l High measurement accuracy through precise piston dosing pump Analysis triggering: Automatic interval mode (interval pause 0–99 minutes) External control Dynamic (exhaustion-dependent interval operation) Volume-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 failed analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Indicator quantities: 100 and 500 ml bottles Programmable maintenance interval for maintenance requests
Testomat 2000 Fe – Real-Time Iron Measurement in Water Reliable iron monitoring for process water with the online analysis device T 2000 by Heyl The Testomat 2000 Fe is an online analysis device for the continuous determination of dissolved iron in water (iron-II + iron-III). It operates with automatic reagent dosing and photometric analysis, providing consistently stable and reliable measurement results. The Testomat 2000 Fe is used wherever iron concentration must be monitored to prevent deposits, discoloration, or disruptions in downstream processes. Through automatic analysis, the device regularly delivers current measurements, allowing early responses to rising iron concentrations. Limit exceedances can thus be detected immediately and used to trigger alarms or control actions. Technical Strengths of the Testomat 2000 Fe The Testomat 2000 Fe uses a photometric measurement method in which iron-II and iron-III are evaluated after automatic addition of defined reagents. The analysis is carried out using two reagents, and after a reaction time of approximately 7 minutes (pure measurement time without rinsing), the result is displayed. Measurements are performed independently at set intervals or via external triggers. Technical features include two independently configurable limit contacts and various signal outputs for further processing of measurement values. Internal diagnostic functions support safe operation and facilitate maintenance planning. Optional interfaces allow connection to process control systems or external data loggers. Applications for the Testomat 2000 Iron De-icing systems Monitoring of de-icing systems and well water Control of operational and drinking water streams Why Iron Measurement is Crucial in Water Treatment Dissolved iron is initially invisible in water but can lead to deposits, discoloration, and disruptions in downstream processes through oxidation. Even low concentrations cause fouling of filters, pipelines, and membranes. Continuous iron measurement enables early detection of limit exceedances, protects plant components, and ensures consistent water quality in process, operational, and drinking water applications. Performance Profile of the Testomat 2000 Fe Analysis using automatic dosing of two reagents Display of the measurement result after approximately 7 minutes (measurement time without rinsing) Two independently programmable limit contacts for monitoring and control tasks Menu-guided operation and programming via plain-text display High measurement accuracy due to precise piston dosing pump Analysis triggering: Automatic interval operation (interval pauses adjustable from 0–99 minutes) External triggering Quantity-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measuring points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests
Testomat 2000 PO4 – Precise Online Phosphate Analyzer Continuous monitoring of ortho-phosphate, reliable and automated The Testomat 2000 PO4 is an analysis device that continuously and reliably monitors ortho-phosphate levels in the range of 0 to 10.0 mg/L (ppm). The measurement is based on molybdenum blue photometry. A chemical reaction produces a characteristic steel-blue color change in the sample. Two reagents are automatically added, and after a short reaction time of approximately ten minutes, the Testomat provides a precise result. With menu-guided operation, plain-text display, and selectable units (ppm or mg/L), the device is ideal for continuous monitoring tasks. Features of the Testomat With automatic reagent supply, programmable measurement intervals, and two independent setpoints with hysteresis, the device delivers accurate results at all times. Its compact design allows flexible installation directly at the measurement point. Digital interfaces enable seamless integration into existing control and monitoring systems. Where can the device be used? Process water monitoring Production water treatment Treated wastewater (wastewater treatment plants, biogas plants) Online environmental analytics Performance profile of the T 2000 PO4 from Heyl Analysis using automatic addition of 2 reagents Display of measurement result after approx. 10 minutes (measurement time without rinsing) Menu-guided operation and programming via plain-text display Selectable units in ppm or mg/L Analysis triggering: Automatic interval mode (interval pause adjustable from 0–255 minutes) External triggering Quantity-dependent via contact water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests
Testomat 2000 – Online Analysis Device for Polyacrylates Reliable online analyzer for monitoring polymer concentrations in water treatment The Testomat 2000 Polymer is an online analysis device for monitoring polyacrylate content in the range of 0 to 50 mg/L (ppm), with a standard product-specific factor of 1.00. The Testomat 2000 Polymer is a professional online analyzer for automatic analysis of polyacrylate content in water. Photometric measurement is based on the addition of two reagents. After a reaction time of approx. 7 minutes, the result is displayed digitally and can be used for control or documentation. With menu-guided operation, unit selection (ppm or mg/L), and versatile triggering options, the analysis process is efficient and reliable. It is suitable for monitoring conditioning agents in cooling and heating circuits. Technical Features of the Testomat 2000 Polymer Automatic interval measurements, external control options, and programmable switching functions allow adaptation to various process requirements. Two independent switching points with hysteresis, adjustable maintenance intervals, and internal error documentation increase reliability in continuous operation. Performance Profile of the T 2000 Polymer Analysis via automatic dosing of 2 reagents Measurement result displayed after approx. 7 minutes reaction time (measurement time without rinsing) Menu-guided operation and programming via plain-text display Selectable units in ppm or mg/L Analysis triggering: Automatic interval mode (interval pause adjustable from 0–255 minutes) External triggering Quantity-dependent via contact water meter Two independent limits with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measurement points (switching via external solenoid valves) Internal error documentation Programmable service address Programmable maintenance interval for maintenance requests Why is monitoring polyacrylates in water treatment important? Monitoring polymers ensures optimal dosing of conditioning agents, prevents deposits and fouling, and reliably protects water treatment equipment from operational disruptions. Chemical dosing must be monitored with a Testomat because its effectiveness is highly concentration-dependent. Continuous online monitoring ensures dosing stays within the optimal range, prevents under- or overdosing, and protects equipment, processes, and water quality reliably.
Testomat 2000 Self clean – Analyzer with Automatic Cleaning Water Hardness Meter from Heyl with Automatic Measurement Chamber Cleaning for Consistently Stable Results The Testomat 2000 Self clean is a specialized version of the Testomat 2000 with an additional dosing pump for adding a cleaning solution after analysis. After a set number of analyses, the measurement chamber is automatically rinsed and a cleaning solution is dosed to remove deposits in the measurement chamber and drain hose. The chamber content is discharged after a short reaction time, and the system is rinsed several more times. This ensures long-term measurement accuracy and device performance. The device measures various water parameters such as residual and total hardness, carbonate hardness, p-value, and minus m-value, with selectable units in °dH, °f, ppm CaCO3, or mmol/l. Special features of the Testomat 2000 Self clean With freely selectable hardness units, automatic interval control, and various external triggering options, the device can flexibly adapt to different measurement tasks. Two programmable limit values with hysteresis enhance process control, while the intuitive menu reduces operating errors and simplifies commissioning. Applications for the Testomat 2000 Self clean Boiler feed water Water treatment Cooling towers Swimming pools Functions and performance features of the Testomat 2000 Self clean Easy menu-guided operation and programming via plain text display Measurement of residual hardness, total hardness, carbonate hardness, minus m-value, and p-value selectable via indicator Choice of hardness units in °dH, °f, ppm CaCO3, or mmol/l High measurement accuracy through precise piston dosing pump Analysis triggering: Automatic interval operation (interval pause adjustable from 0–99 minutes) External control Dynamic (exhaust-dependent interval operation) Flow-dependent via water meter Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and adjustable switching functions Monitoring of two measuring points (switching via external solenoid valves) Internal error documentation Programmable service address Indicator quantities: 100 and 500 ml bottles Programmable maintenance interval for service request
The Testomat ECO® C determines the carbonate hardness fully automatically by means of titration. In addition to monitoring and controlling the water quality of water treatment plants, the device is particularly suitable for determining the acid quality in swimming pool water at low measuring ranges. In combination with a hardening system, the instrument guarantees stable compliance with the parameters recommended in DIN 19643 of 0.7< KS4.3 < 2.0 mmol/l. Performance profil: 2-line LC display for text indication and self-explanatory, menu-guided user interfacefläche.Programmable hardness unit in °dH, °f, ppm CaCO3, mmol/lHigh-precision titration by means of piston metering pumpReliable and low-maintenance operationMinimal indicator and water consumption2 adjustable limit values with programmable switching functionsAnalysis initiation:automatic interval operation (0-99 minutes)quantity-dependent (contact water meter)Monitoring of analysis progress and error message in case of malfunctionsexternal analysis suppression "STOP"Two independent limits with hysteresis (1, 2 or 3 bad analyzes) and adjustable switching functions (2 neutral changer contacts)Analog output 0/4 - 20 mA for recorder connection
Testomat 808: Continuous Hardness Limit Monitoring Online measurement of residual water hardness with automatic color change Measurement Principle and Technical Features Modern indicator pump system supporting an automated process with minimal reagent and water consumption. Internal and external flushing options, manual safety check for up to 72 hours of unattended operation (BOB operation), and interfaces for 4–20 mA signals and RS232 firmware updates. Purchase Benefits 3% shop discount when purchasing a Testomat 808 Free of charge: original Heyl indicator for hardness measurement
The Testomat® 808 is a compact analyser for online measurement of water hardness according to the principle of "limit value monitoring with colour change" in the measuring range 0.02 - 5 ° dH (0.4 - 89 ppm). Applications of the continuous residual hardness monitoring are e.g.: Reverse osmosis systems, boiler feed water supply Soft water for commercial purposes, ultrapure water systems. In view of the fact that the Testomat® 808 is suitable for use in multi-parameter systems due to its 4-20mA signal output, we hereby offer you the Testomat® 808 in conjunction with the NeoTecMaster® Multicontroller, which was specially developed by our company, as a package solution at a preferential price. The 4-channel NeoTecMaster® Multicontroller included in this package enables the processing of up to four measurement signals. Via the 4-20mA NeoTec slave input module connected to the NeoTecMaster®, the data is transmitted to the NeoTecMaster® and used to display the measured value, the trend and the status messages on the 5-inch screen. In addition, the NeoTecMaster® has an RS232 interface as well as a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments). The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required. This allows the future realisation of further control concepts in a flexible way. Two modules which fundamentally extend the range of functions and are already included in the scope of delivery are our NeoTec slave relay module and the 4x 4-20mA input module. This allows you to add potential-free relay contacts to the overall system and to integrate and visualise further system technology such as sensors via the 4x 4-20mA input module. You can freely assign the relay contacts to the incoming measurement signals and thus, for example, implement simple limit value-related control concepts as well as output measurement value-related messages. Further advantages of the NeoTecMaster: Simple operation Integration of the Testomat® device world, here in connection with the Testomat® 808 Integration into the existing control cabinet, alternatively we offer our NeoTecMaster® enclosure Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation) Available as built-in or surface-mounted variant Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format In addition, there are the proven functionalities of the Testomat® 808: Indication of limit value undershoot or overshoot: green / red LED Modern indicator pump system Automatic measuring sequence with low water consumption Direct error and indicator quantity display Internal and external flushing of the measuring chamber by manual control Control of an external flush valve Three potential-free relays for: External flush valve control Limit value evaluation External control and / or alarm processing Safety check for 72-hour operation without supervision Indicator quantities: 100 and 500 ml bottles 4 - 20 mA interface for defined status and error messages RS 232 interface for firmware updates General information Water connection and operating pressure: Depending on unit version: 0.3 - 1 bar / 0.3 x 105 to 4 x 105 Pa 1 - 4 bar / 1 x 105 to 4 x 105 Pa (from 4 to 8 bar, a pressure reducer must be used (special accessory)) Water inlet: opaque hose with 6 mm outer diameter/4 mm inner diameter Water outlet: hose with 6 mm outer diameter/4 mm inner diameter Water temperature: 10 to 40 °C From 4 bar, a separately available pressure reducer must be used. Please use only the indicators approved for Testomat® 808! Optional accessories: NeoTecMaster unit hood
Precise Water Hardness Analysis for Automated Process and System Monitoring with the Testomat EVO TH Fully automatic water hardness determination via titration The Testomat EVO automatically detects the water level when filling the measuring chamber and can also operate for extended periods in BOB mode without constant supervision. With an integrated SD card or optionally an SDHC card (2 GB), measurement data and messages/alarms can be recorded. The menu is available in multiple languages, and firmware updates can be conveniently applied via the SD card. Analog outputs and serial interfaces allow external processing of measurement data. Certified and Cost-Effective Standalone Water Hardness Meter With the Testomat EVO, you benefit from stable, low-maintenance continuous operation, minimal consumption of indicator solution and water, as well as versatile data communication via RS232 or 0/4–20 mA signals. Certification according to relevant safety and TÜV standards (WÜH certification for boiler houses) and the compact design make the EVO a robust and efficient solution for demanding measurement tasks. Applications for the Testomat EVO Water treatment Drinking water systems Industrial boilers Process water monitoring When purchasing the Testomat EVO online, you receive, in addition to a 3 % online discount on Heyl devices, a free indicator of your choice.
The Testomat® EVO TH automatically determines the water hardness by means of titration. The device is suitable for controlling the water quality of water treatment plants, drinking water systems, industrial boilers and for monitoring process water. On top of that our Testomat® EVO TH is approved for boiler houses | component identification no.: TÜV. WÜH. 21-025 | VdTÜV bulletin water monitoring device 100 and UL-TÜV certified. It is supplemented by the Testomat® LAB CL, a robust wet chemical online measuring converter to measure the concentration of total chlorine or free chlorine in the measuring range 0 - 5 mg/l. The instrument is suitable for controlling the water quality of water treatment plants, drinking water plants, process water monitoring and for monitoring the chlorine concentration in the cooling tower process. Instrument operation is based on the DPD method according to EN ISO 7393-2. The analysis is carried out through the addition of two reagents and the measurement result is obtained after a reaction time of approx. 60 seconds (pure measurement time without flush time). In view of the fact that the Testomat® LAB CL was developed for use in multi-parameter systems or for connection to a higher-level control system, we hereby offer you the Testomat® EVO TH and the Testomat® LAB CL in combination with the NeoTecMaster®, which was specially developed by our company, as a package solution at a preferential price. The 4-channel NeoTecMaster® multi-parameter controller included in this package enables the processing of up to four measurement signals in this version. A signal input on the NeoTecMaster® , in this case the RS232 interface and one additional RS232 interface on the included NeoTec Slave module , are used by Testomat® EVO TH and Testomat® LAB CL to display the measured value, the trend and the status messages on the 5 inch screen. In addition to the on board RS232 interface, the NeoTecMaster® also has a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments). The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required, thus enabling the future realisation of further control concepts in a flexible manner. A module that fundamentally expands the range of functions and is already included in the scope of delivery is our NeoTec slave relay module with which you can add potential-free relay contacts to the overall system. You can freely assign these to the incoming measurement signals and thus, for example, implement limit value-related control concepts, as well as output measurement-related messages. Further advantages of the NeoTecMaster: Simple operation Integration of the Testomat® world of instruments, here in conjunction with the Testomat® EVO TH and Testomat® LAB CL Integration into the existing control cabinet, alternatively we offer our NeoTecMaster® housing Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation) Available as built-in or surface-mounted variant Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format In addition, there are proven Testomat® functionalities of both devices: Optimised water detection based on an optical measuring method RS232 interface for transmission of measured values and error messages Import and export of settings (basic programming) Logging of measurement data and messages/alarms via integrated SD card or optionally usable SDHC card (2GByte) Firmware update via SD card Integrated self-test with continuous monitoring Automatic venting of the indicator line Performance profil Testomat® EVO TH: High-precision titration by means of piston metering pump LCD graphic display Multilingual menu with easy switching (internal programming is retained) External clear / acknowledge input Free programmable password Range monitoring (fall below limit value1 / exceed limit value 2) Permitted number of lack of water, freely programmable (for systems with temporarily low water pressure) Reliable and low-maintenance operation Minimal indicator and water consumption Analogue output 4 - 20 mA for transmission of measured values Programmable hardness unit in °dH, °f, ppm CaCO3, mmol/l Collective alarm output Indicator quantities: 100 and 500 ml bottles Analysis trigger: automatic interval operation (0-99 minutes) depending on quantity via contact water meter Performance profil Testomat® LAB CL: High-precision peristaltic pumps Reliable and low-maintenance operation Minimal reagent and water consumption Analog output 4 - 20 mA for transmission of measured values RS232 interface for transmission of measured values & fault messages Execution of parameterisation by means of SD card or "Service Monitor" software via mini-USB (on the unit side) to USB 2.0 (e.g. PC/notebook) Multilingual software menu in German, English, French, Dutch, Portoguese Compact design Common alarm output Optimised reagents: Only 2 reagents for the determination of total chlorine Optimised reagent set: filling quantities are coordinated so that the reagent set is used up almost evenly Analysis triggering: Automatic interval operation (interval pause adjustable from 10-60 minutes) Measuring phase mode (start impulse triggers a sequence of analyses for a period of 10 minutes to 12 hours) External analysis input (start/stop) Hand start Optional accessories available: OLED display for Testomat® LAB Protective cover to increase the IP protection class of the Testomat® LAB NeoTecMaster instrument cover
Features and Equipment Optical water detection when filling the measuring chamber ensures precise dosing. Additionally, the device features automatic venting of the indicator line, an integrated self-test, and a multilingual menu. Measurement data and messages/alarms are logged via an integrated SD card or optional SDHC card. Recorded values and alarms can be transmitted for external processing via an analog 0/4–20 mA output or the RS232 interface. Applications of the Testomat EVO TH CAL Monitoring hardness in water treatment systems Water hardness measurement in drinking water systems Fully automatic hardness measurement in industrial boilers Process water monitoring Continuous monitoring of water hardness enables reliable process control in water treatment, drinking water, and industrial systems. Scale deposits, corrosion, and energy losses are reduced, legal limits are safely maintained, and equipment lifespan is extended. Deviations in water hardness are detected early, improving operational safety, product quality, and efficiency. Benefits of the Testomat EVO TH CAL in Daily Operation The Testomat EVO TH CAL features minimal water and indicator consumption as well as simple data management. With a freely programmable password, external reset and acknowledgment inputs, and the ability to adapt to temporarily low water pressure, the device is suitable for demanding environments.
Testomat LAB CL – Online Measuring Transmitter for Total Chlorine and Free Chlorine Precise chlorine monitoring device from Heyl for water treatment systems The Testomat LAB CL is a wet-chemical online measuring transmitter for the precise analysis of total chlorine or free chlorine in water. The Testomat has been developed for use in multi-parameter systems and for connection to higher-level control systems. The analysis is based on the DPD method in accordance with EN ISO 7393-2: two reagents are dosed, and after a reaction time of approximately 60 seconds, the measurement result is available. Integrated data storage on an SD or SDHC card in CSV format simplifies operation and evaluation. Measurement values, status messages, and error messages can be transmitted to higher-level control systems via the 4–20 mA output and the RS232 interface. Device features and benefits The Testomat LAB CL impresses with precise and reliable chlorine analysis based on DPD photometry in a measuring range of 0–5 mg/l. Thanks to its design and flexible interfaces, the device can be easily integrated into existing systems. Automatic data storage, simple operation, and low-maintenance components ensure efficient operation. Wide range of applications Monitoring water quality in water treatment and drinking water facilities Process monitoring Monitoring chlorine concentration in cooling tower processes Connection to higher-level control systems Which functionalities make the Testomat LAB stand out in chlorine measurement? The Testomat LAB CL and CL-R feature innovative measurement technology: RS232 interface for transmission of measurement values and error messages Parameterization via SD card or the “Servicemonitor” software using Mini-USB (device side) to USB 2.0 (e.g. PC or notebook) Multilingual menu navigation in German, English, French, Dutch, and Portuguese Firmware update via SD card Compact design Optimized water detection based on an optical measurement principle Integrated self-test with continuous monitoring Optimized reagent set for total chlorine measurement (reduction from three to two reagents) Additional functions of the CL-R version Parameterization and reading of device parameters via the RS232 interface. Proven performance profile of the Testomat device family Highly accurate peristaltic pumps Reliable, low-maintenance operation Minimal reagent and water consumption 4–20 mA analog output for transmission of measurement values RS232 interface for transmission of measurement values and fault messages Common alarm output Optimized reagents: only two reagents required for total chlorine determination Optimized reagent containers with matched fill volumes so that both containers are depleted at the same time Analysis triggering Automatic interval operation (interval pause adjustable from 10 to 60 minutes) Measurement phase mode (start signal triggers a sequence of analyses lasting from 10 minutes up to 12 hours) External analysis input (start/stop) Manual start Optional accessories OLED display Protective cover to increase the IP protection class
The Testomat® EVO TH automatically determines the water hardness by means of titration. The device is suitable for controlling the water quality of water treatment plants, drinking water systems, industrial boilers and for monitoring process water. Approved for boiler houses | component identification no.: TÜV. WÜH. 21-025 | VdTÜV bulletin water monitoring device 100 and UL-TÜV certified. The Testomat® EVO TH convinces with new functionalities: Optical water detection when filling the measuring chamber Import and export of settings (basic programming) with selectable file name Logging of measurement data and messages / alarms using an integrated SD or optional SDHC card (2GByte) Firmware update via SD card LCD graphic display Multilingual menu with easy switching (internal programming is retained) Integrated self-test with continuous monitoring External clear / acknowledge input Free programmable password Automatic bleeding of the indicator line Doors can be changed individually Range monitoring (fall below limit value1 / exceed limit value 2) Permitted number of lack of water, freely programmable (for systems with temporarily low water pressure) Performance profile: High-precision titration using a piston dosing pump Analogue output 0/4 - 20 mA Programmable hardness unit in ° dH, ° f, ppm CaCO3, mmol / l 2 independent limits with adjustable switching functions as well as switching option in accordance with an adjustable number of negative analyzes Analysis initiation: automatic interval operation (0-99 minutes) depending on quantity via contact water meter Indicator quantities: 100 und 500 ml bottles The Testomat® EVO TH is supplied without a power switch. This is done to comply with the DIN EN 61010-1 safety standard for measuring, control and laboratory equipment. Of course, an external mains switch will be made available to you as a customer for purchase. You can order this from us as a disconnector under article no. 850925, "external cam switch with protection class IP65". The Testomat® LAB TH and Testomat® LAB TH-R (Remote)determine the water hardness (residual total hardness) fully automatically by titration. The instrument is suitable for controlling the water quality of water treatment plants, drinking water plants, industrial boilers and for monitoring process water. Please note that Testomat® LAB - TH and Testomat® LAB TH-R was developed for use in multi-parameter systems or for connection to a higher-level control system. In addition to the 4-20 mA output for transmitting the measured values, this series has an RS232 interface for transmitting the measured values and error & status messages. Furthermore, all data are continuously recorded on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format structured and can be used at any time for detailed observations. The Testomat® LAB TH and TH-R convinces with new functionalities: Execution of parameterization by SD card or the "Service Monitor" software via mini-USB (on the device side) to USB 2.0 (for example PC/notebook) Multilingual menu navigation software in German, English, French, Dutch, Portuguese Firmware update via SD card compact design optimized water detection based on an optical measuring method Integrated self-test with continuous monitoring Automatic venting of the indicator line Tried and tested performance profile: High-precision titration using a piston dosing pump Reliable and low-maintenance operation Minimal indicator and water consumption Analog output 4 - 20 mA for transmission of measured values Programmable hardness unit in °dH, °f, ppm CaCO3, mmol/l Common alarm output Indicator quantities: 500 ml bottles Analysis triggering: Automatic interval operation (interval pause adjustable from 0-255 minutes) External analysis input (start/stop) Hand launch Both analysers are available in the "R" version, which includes the following additional function: Parameterisation and readout of the unit parameters via the RS232 interface Optional accessories for both devices: OLED display Protecting cover to increase the IP protection class The Testomat® EVO TH automatically determines the water hardness by means of titration. The device is suitable for controlling the water quality of water treatment plants, drinking water systems, industrial boilers and for monitoring process water. Approved for boiler houses | component identification no.: TÜV. WÜH. 21-025 | VdTÜV bulletin water monitoring device 100 and UL-TÜV certified. The Testomat® EVO TH convinces with new functionalities: Optical water detection when filling the measuring chamber Import and export of settings (basic programming) with selectable file name Logging of measurement data and messages / alarms using an integrated SD or optional SDHC card (2GByte) Firmware update via SD card LCD graphic display Multilingual menu with easy switching (internal programming is retained) Integrated self-test with continuous monitoring External clear / acknowledge input Free programmable password Automatic bleeding of the indicator line Doors can be changed individually Range monitoring (fall below limit value1 / exceed limit value 2) Permitted number of lack of water, freely programmable (for systems with temporarily low water pressure) Performance profile: High-precision titration using a piston dosing pump Analogue output 0/4 - 20 mA Programmable hardness unit in ° dH, ° f, ppm CaCO3, mmol / l 2 independent limits with adjustable switching functions as well as switching option in accordance with an adjustable number of negative analyzes Analysis initiation: automatic interval operation (0-99 minutes) depending on quantity via contact water meter Indicator quantities: 100 und 500 ml bottles The Testomat® EVO TH is supplied without a power switch. This is done to comply with the DIN EN 61010-1 safety standard for measuring, control and laboratory equipment. Of course, an external mains switch will be made available to you as a customer for purchase. You can order this from us as a disconnector under article no. 850925, "external cam switch with protection class IP65".