The Testomat® LAB Monochloramine (NH2CL) is an online analyzer that photometrically measures the content of monochloramine in process water. The instrument is used for continuous monitoring of process quality, for example in cooling circuits. Another application is the use in the environment of water treatment and drinking water plants, for process monitoring, as well as the monitoring of ther decay behavior in cooling towers after shock chlorination. The measuring range for Monochloramine (NH2CL, calculated as Cl2) is 0 to 5 ppm (resolution 0.1). The instrument operates according to the DPD method based on EN ISO 7393-2. The analysis is performed by adding two reagents. After a reaction time of approx. 60 seconds (dosing and measuring time without rinsing time) the measuring result is available. Please note that the Testomat® Monochloramine (NH2CL) was developed for use in multiparameter 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 Monochloramine (NH2CL) 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, DutchFirmware update via SD card compact design optimized water detection based on an optical measuring method [#dspacer#][#dspacer#]optimized reagent set for total chlorine measurement (reduction from three to tow reagents for total chlorine)Integrated self-test with continuous monitoring Automatic venting of the indicator line Tried and tested performance profile: High-precision peristaltic pumpsReliable 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 Common alarm output Optimised reagents: Only 2 reagents for the determination of monochloramineOptimised reagent bottles: Filling quantities adjusted so that both bottles are used up at the same timeAnalysis 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