Conductivity Measuring Instruments
New
3 meter connection cable for N-LF measuring cells, 4-core 0.25² with shielding
Product number:
880652
Cable length:
3 meters
- 1 side connected to solenoid valve connector without seal
("Plug and Play", as plug only has to be plugged onto measuring cell)- 1 side labelled cable with wire end ferruleswhite: PT100brown: PT100yellow: Measuring cell
SL green: Measuring cellblue: shielding
€39.25*
New
6 meter connection cable for N-LF measuring cells, 4-core 0.25² with shielding
Product number:
880653
Cable length:
6 meters
- 1 side connected to solenoid valve connector without seal
("Plug and Play", as plug only has to be plugged onto measuring cell)- 1 side labelled cable with wire end ferruleswhite: PT100brown: PT100yellow: Measuring cell
SL green: Measuring cellblue: shielding
€50.40*
LF measuring cell, C=0.1 with 12mm connection
Product number:
890601
Our Neomeris conductivity cell with 12mm connection is used for the determination of the electrical conductivity in aqueous solutions.
Inside the T-piece is the two-electrode measuring cell without temperature compensation.
The installation is easy and fast due to the John Guest connectors. We recommend the use of the product in the fields of distillate, condensate, ultrapure water as well as fully demineralized water. Technical data
Material Housing: POM T-piece John Guest ½"
Material electrodes: V4A 4571
Cell constant: C = 0.1 +-5%
Max. operating pressure: 6 bar
Max. operating temperature: 60°C
Electrical connection: - brown electrode, outer sheath
- white Electrode, inside
- blue: shieldCable length: 2.5 meters
From
€121.25*
Tip
New
N-FLASH10 Leitfähigkeitsmessgerät im T-Stück, 0-10 μS/cm mit 2 LEDs, Akku, max. 60°C
Product number:
851004
Technical data:
Screw-in thread: 1/4"; 1/2"; 3/4"; others available upon requestMaterial housing: POM black
Material lid: Plexiglas
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C= 0.6 +/- 10%
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: without
Display: LED green <10μS/cm
LED red >10μS/cm
€128.40*
New
N-FLASH10, conductivity measuring instrument 0-10μS/cm with 2 LEDs, battery-powered and integrated screw-in measuring cell
Product number:
851001
measuring range:
0-10 μS/cm
|
screw-in cel:
1/4"
Technical data:
Screw-in thread: 1/4"; 1/2"; 3/4"; others available upon requestMaterial housing: POM black
Material lid: Plexiglas
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C= 0.6 +/- 10%
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: without
Display: LED green <10μS/cm
LED red >10μS/cm
€95.75*
Tip
N-FLASH50 conductivity meter 0-50 μS/cm with 3 LEDs, battery-operated, 1/4" screw-in measuring cell
Product number:
880593
measuring range:
0-50 μS/cm
|
screw-in cel:
1/4"
Technical data:
Screw-in thread: 1/4"; 1/2"; 3/4"; others available upon requestMaterial housing: POM black
Material lid: Plexiglas
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C= 0.6 +/- 10%
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: without
Display: LED green <20μS/cm
LED yellow 20-50μS/cm
LED red >50μS/cm
€98.75*
N-LED10, conductivity measuring instrument 0-10μS/cm with 5 LEDs and integrated 3/4" screw-in measuring cell
Product number:
880635
measuring range:
0-10 μS/cm
|
screw-in cel:
3/4"
Technical data:
Measuring range: 0 - 10 μS/cm (without temperature compensation)
<0.1 <0.5 < 1.0 < 5.0 < 10 μS/cm
LED display: 3x green; 1x yellow; 1x red
Power supply: 100-240 VAC plug-in power supply unit
Energy consumption: < 500 mWHousing material: POM black (polyoxymethylene)
Viewing window material: PMMA (acrylic glass)
Electrodes: Stainless steel 1.4571
Dimensions: Diameter 40 mm x 68 mm (Top) / 110 mm (Total)
Gasket electrodes: EPDM
Gasket housing: EPDM
Application limits: Pressure max.: 6 bar; Temperature max.: 60 °C
Protection class: IP 65*
Display Measuring range
3 LED green < 0.1 μS/cm
2 LED green < 0.5 μS/cm
1 LED green < 1.0 μS/cm
1 LED yellow < 5 μS/cm
1 LED red < 10 μS/cm
1 LED red flashing ≥ 10 μS/cm
€138.00*
N-LED20, conductivity measuring instrument 0-20μS/cm with 5 LEDs and integrated 3/4" screw-in measuring cell
Product number:
880572
measuring range:
0-20 μS/cm
|
screw-in cel:
3/4"
Technical data:Measuring Range: 0 - 20 uS/cm (without temperature compensation)<1,0 <5,0 < 10,0 < 20,0 > 20,0 uS/cmLED-Display: 3x green; 1x yellow; 1x redVoltage Supply: 100-240 VAC with wall plug transformerPower Consumption: < 500 mWHousing: POM black (Polyoxymethylen)Vision Panel: PMMA (Acryl Glass)Electrodes: Stainless Steel 1.4571Dimension: Diameter 40 mm x 68 mm (Top) / 110 mm (Total)Seals Electrodes EPDMSeal Housing: EPDMOperation Limits: P max: 6 bar; T max: 65 °CProtection Class: IP 65*Display Measuring value3 LED green <= 1,0 uS/cm2 LED green < 5,0 uS/cm1 LED green < 10,0 uS/cm1 LED yellow < 20,0 uS/cm1 LED red flashing >= 20,0 uS/cm
€148.90*
N-LF10R conductivity meter with relay output 0-10 µS - integrated 3/4" screw-in measuring cell
Product number:
880562
measuring range:
0-10 μS/cm
|
potential-free relay contact:
with
Device for measuring the electrical conductivity of aqueous solutions in conjunction with an integrated two-electrode screw-in measuring cell 3/4 inch without temperature compensation. The devices are selected according to the respective measuring range and are available as a variant with or without potential-free relay output.Application examplessoftener cartridgescomplete desalinationreverse osmosisdesalinationcooling circuitsphase separationAdded valueOperation at 9 V DC via supplied plug-in power supply1 potential-free relay with switchable mode of operation of relay controlLimit value display optically by means of LEDs
Technical dataMeasuring ranges: 0 - 10 / 100 / 1000 μS/cm, depending on instrument typeLimit value displays: Optical by means of LEDs, limit values adjustable between 0 and 100 % of the measuring range 1 potential-free relay contact, max. 2 A / 250 V AC, 60 W / 62.5 VA (if selected) Power supply: 9 V DC via plug-in power supply unit 100 - 240 V AC Power consumption: approx. 1 W Protection class: IP 65 Housing: polycarbonate housing, 82 x 60 x 57 mm Connections: side connection for plug-in power supply and one relay output (if selected) Measuring cell: ¾", PP, PN 6, Tmax. 60°C
€265.50*
N-LF100 conductivity meter 0-100 µS with integrated 3/4" screw-in measuring cell
Product number:
880560
measuring range:
0-100 μS/cm
|
potential-free relay contact:
without
Device for measuring the electrical conductivity of aqueous solutions in conjunction with an integrated two-electrode screw-in measuring cell 3/4 inch without temperature compensation. The devices are selected according to the respective measuring range and are available as a variant with or without potential-free relay output.Application examplessoftener cartridgescomplete desalinationreverse osmosisdesalinationcooling circuitsphase separationAdded valueOperation at 9 V DC via supplied plug-in power supply1 potential-free relay with switchable mode of operation of relay controlLimit value display optically by means of LEDs
Technical dataMeasuring ranges: 0 - 10 / 100 / 1000 μS/cm, depending on instrument typeLimit value displays: Optical by means of LEDs, limit values adjustable between 0 and 100 % of the measuring range 1 potential-free relay contact, max. 2 A / 250 V AC, 60 W / 62.5 VA (if selected) Power supply: 9 V DC via plug-in power supply unit 100 - 240 V AC Power consumption: approx. 1 W Protection class: IP 65 Housing: polycarbonate housing, 82 x 60 x 57 mm Connections: side connection for plug-in power supply and one relay output (if selected) Measuring cell: ¾", PP, PN 6, Tmax. 60°C
€245.75*
N-LF1000R conductivity meter with relay output 0-1.000 µS - integrated 3/4" screw-in measuring cell
Product number:
880564
measuring range:
0-1000 μS/cm
|
potential-free relay contact:
with
Device for measuring the electrical conductivity of aqueous solutions in conjunction with an integrated two-electrode screw-in measuring cell 3/4 inch without temperature compensation. The devices are selected according to the respective measuring range and are available as a variant with or without potential-free relay output.Application examplessoftener cartridgescomplete desalinationreverse osmosisdesalinationcooling circuitsphase separationAdded valueOperation at 9 V DC via supplied plug-in power supply1 potential-free relay with switchable mode of operation of relay controlLimit value display optically by means of LEDs
Technical dataMeasuring ranges: 0 - 10 / 100 / 1000 μS/cm, depending on instrument typeLimit value displays: Optical by means of LEDs, limit values adjustable between 0 and 100 % of the measuring range 1 potential-free relay contact, max. 2 A / 250 V AC, 60 W / 62.5 VA (if selected) Power supply: 9 V DC via plug-in power supply unit 100 - 240 V AC Power consumption: approx. 1 W Protection class: IP 65 Housing: polycarbonate housing, 82 x 60 x 57 mm Connections: side connection for plug-in power supply and one relay output (if selected) Measuring cell: ¾", PP, PN 6, Tmax. 60°C
€265.50*
N-LF1201 conductivity measuring cell C=0.1 with PT100, 1/2 inch screw-in cell and solenoid valve connector
Product number:
880576
measuring range:
0-10 / 0-20 / 0-100 / 0-200 µS/cm (K= 0,1)
|
screw-in cel:
1/2"
Technical data:
Screw-in thread: 1/2
"Material housing: POM black
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C=0.1 +/- 10%.
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: PT100
Solenoid valve connector: ST2+SL electrodes
Colour cable green/yellow
St1+St2 PT 100
Colour cable brown/white
€113.00*
N-LF1210 conductivity measuring cell C=1.0 with PT100, 1/2 inch screw-in cell and solenoid valve connector
Product number:
880577
measuring range:
0-1000 / 0-2000 µS/cm ( K= 1,0)
|
screw-in cel:
1/2"
Technical data:
Screw-in thread: 1/2
"Material housing: POM black
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C=1.0 +/- 10%.
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: PT100
Solenoid valve connector: ST2+SL electrodes
Colour cable green/yellow
St1+St2 PT 100
Colour cable brown/white
€119.45*
Tip
N-LF2000, conductivity measuring instrument 0-20/200/2000μS/cm in wall mounted housing
Product number:
880571
Instrument for measuring the electrical conductivity of aqueous solutions in conjunction with two-electrode measuring cells. Designed as wall-mounted version.Operation at 230 V AC or 24 V DC possible2 potential-free relays - changeover switch for limit value switching (hysteresis 5 % fixed)Alphanumeric display with 2 x 16 charactersTemperature measurement and temperature display from 0.0 °C to 90.0 °C when a Pt100 is connectedSwitchable temperature compensation with 2.2 % / K up to 90 °CMonitoring of the temperature sensor for sensor break and error message on the displaySwitchable mode of operation for relay controlOutput of the measured value with 0 - 10 V and 4 - 20 mA
Technical data
Measuring ranges: dependent on measuring cell and amplification
Temperature compensation: Linear 2.2 % / K, can be switched off, reference temperature 25 °CLimit value displays: Optical by means of 2 LEDs, 2 limit values adjustable over the measuring range
Limit value outputs: 1 potential-free changeover contact, max. 6 A / 250 V AC1 change-over contact to 230V AC (terminal 21)
Analog outputs: 0 - 10 V, Ra > 1 kOhm; corresponds to 0 - 20 / 200 / 2000 μS/cm
4 - 20 mA, Ra < 500 Ohm; corresponds to 0 - 20 / 200 / 2000 μS / cm
Power supply: 22 - 26 V DC, protected against reverse polarity, electrically isolated,
1000 V insulation voltage, or 230 V 50/60 Hz
Power consumption: Approx. 3 W / 3 VA
Protection class: IP 65
Housing: Surface-mounted housing (polycarbonate) 120 x 122 x 57 mm
Connections: 4 x M16 cable entries on the bottom of the housing.
€489.50*
N-LF3401 conductivity measuring cell C=0.1 with PT100, 3/4 inch screw-in cell and solenoid valve connector
Product number:
880574
measuring range:
0-10 / 0-20 / 0-100 / 0-200 µS/cm (K= 0,1)
|
screw-in cel:
3/4"
Technical data:
Screw-in thread: 3/4"Material housing: POM black
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C=0.1 +/- 10%.
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: PT100
Solenoid valve connector: ST2+SL electrodes
Colour cable green/yellow
St1+St2 PT 100
Colour cable brown/white
€113.00*
N-LF3410 conductivity measuring cell C=1.0 with PT100, 3/4 inch screw-in cell and solenoid valve connector
Product number:
880575
measuring range:
0-1000 / 0-2000 µS/cm ( K= 1,0)
|
screw-in cel:
3/4"
Technical data:
Screw-in thread: 3/4"Material housing: POM black
Material electrodes: V4A 4571
Material O-ring: EPDM
Cell constant: C=1.0 +/- 10%.
Max. Operating pressure: 6 bar
Max. Operating temperature: 60°C
Temperature sensor: PT100
Solenoid valve connector: ST2+SL electrodes
Colour cable green/yellow
St1+St2 PT 100
Colour cable brown/white
€107.50*
Tip
N-LF420 0-2000µS conductivity meter with 4-20mA output, LED display and 3/4 inch screw-in thread
Product number:
880677
LED Configuration:
Standard (see text)
|
measuring range:
0-2000 μS/cm
|
screw-in cel:
3/4"
High-quality conductivity meter with a 4-20mA signal output for forwarding the measured value to a higher-level control system, for example. The measurement is temperature compensated and therefore offers you an accurate measurement result. Also here we have the possibility to offer you an individual design regarding the connection, the LEDs including the measuring range up to a private label. Due to the acrylic glass cover used, the light of the LEDs is widely scattered and the current LED status can be seen from a distance in darker rooms. Quality Made in Germany.
Standard LED configuration (1 green LED, 1 red LED):<1500 µS/cm = green>1500 µS/cm to <1900µS/cm = green/red flashing >1900 µS/cm = red
Technical data:Measuring range: 0 - 2000 μS/cmTemperature compensation: Linear 2.2 % / K, reference temperature 25°CAccuracy conductivity: +/-10% of the maximum full scale valueAccuracy temperature: +-1.0 °CLimit value display: Optical via LEDAnalog output: 4-20 mA = 0-2000 μS/cmPower supply: 24 VDC +-10%Power consumption: < 2.5WScrew-in thread: 3/4"Housing: POM (polyoxymethylene)Vision panel: PMMA (acrylic glass)Electrodes: stainless steel 1.457Dimensions: Diameter 60 mm x 60 mm (top) / 100 mm (total)Gaskets electrodes: EPDM, 28 x 3 mmGasket housing: EPDM, 50 x 2 mmApplication limits: P max: 6 bar; T max: 50 °CProtection class: IP 65*
€258.50*
Tip
N-LF420 0-50µS conductivity meter with 4-20mA output, LED display and screw-in thread as required
Product number:
880630M.1
LED Configuration:
Standard (see text)
|
measuring range:
0-50 μS/cm
|
screw-in cel:
Your desired thread
High-quality conductivity meter with a 4-20mA signal output for forwarding the measured value to a higher-level control system, for example. The measurement is temperature compensated and therefore offers you an accurate measurement result. Also here we have the possibility to offer you an individual design regarding the connection, the LEDs including the measuring range up to a private label. Due to the acrylic glass cover used, the light of the LEDs is widely scattered and the current LED status can be seen from a distance in darker rooms. Quality Made in Germany.
Standard LED configuration (1 green LED, 1 red LED):<20 µS/cm = green>20 µS/cm to <40µS/cm = green/red flashing >40 µS/cm = red
Technical data:Measuring range: 0 - 50 μS/cmTemperature compensation: Linear 2.2 % / K, reference temperature 25°CAccuracy conductivity: +/-10% of the maximum full scale valueAccuracy temperature: +-1.0 °CLimit value display: Optical via LEDAnalog output: 4-20 mA = 0-50 μS/cmPower supply: 24 VDC +-10%Power consumption: < 2.5WScrew-in thread: according to your requirementsHousing: POM (polyoxymethylene)Vision panel: PMMA (acrylic glass)Electrodes: stainless steel 1.457Dimensions: Diameter 60 mm x 60 mm (top) / 100 mm (total)Gaskets electrodes: EPDM, 28 x 3 mmGasket housing: EPDM, 50 x 2 mmApplication limits: P max: 6 bar; T max: 50 °CProtection class: IP 65*
€215.50*
Tip
N-LF420 free measuring range - conductivity meter with 4-20mA output and measuring range according to your requirements, LED display, 3/4 inch screw-in thread
Product number:
880630M.7
LED Configuration:
Standard (see text)
|
measuring range:
Your desired measuring range
|
screw-in cel:
3/4"
High-quality conductivity meter with a 4-20mA signal output for forwarding the measured value to a higher-level control system, for example. The measurement is temperature compensated and therefore offers you an accurate measurement result. Also here we have the possibility to offer you an individual design regarding the connection, the LEDs including the measuring range up to a private label. Due to the acrylic glass cover used, the light of the LEDs is widely scattered and the current LED status can be seen from a distance in darker rooms. Quality Made in Germany.
Standard LED configuration (1 green LED, 1 red LED):<20 µS/cm = green>20 µS/cm to <40µS/cm = green/red flashing >40 µS/cm = red
Technical data:Measuring range: according your requirementsTemperature compensation: Linear 2.2 % / K, reference temperature 25°CAccuracy conductivity: +/-10% of the maximum full scale valueAccuracy temperature: +-1.0 °CLimit value display: Optical via LEDAnalog output: 4-20 mA = 0-... μS/cm (according your needed measuring range)Power supply: 24 VDC +-10%Power consumption: < 2.5WScrew-in thread: 3/4"Housing: POM (polyoxymethylene)Vision panel: PMMA (acrylic glass)Electrodes: stainless steel 1.457Dimensions: Diameter 60 mm x 60 mm (top) / 100 mm (total)Gaskets electrodes: EPDM, 28 x 3 mmGasket housing: EPDM, 50 x 2 mmApplication limits: P max: 6 bar; T max: 50 °CProtection class: IP 65*
€215.50*
N-LFW, conductivity measuring instrument with 3m hardwired connection cable
Product number:
880568
measuring range:
0-10 μS/cm
|
potential-free relay contact:
with
Device for the measurement of the electrical conductivity of aqueous solutions using a two-electrode conductivity cell without temperature compensation. Designed as measuring device with external measuring cell, with or without potential-free relay output available.- Applications: Demineralisation, reverse osmosis, desalination, cooling water recirc., phase separation- Operation at 9V DC via included wall transformer power supply.- Versions with relay output: 1 potential-free relay with reversible mode of action for the relay output- Optical limit indication via LEDs Technical Data- Measuring ranges: 0 - 10 / 100 / 1000 uS/cm, depending on type of device- Indication of limit values: Optical via LEDs, 2 limit values can be set within 0 and 100 % of the measuring range- Versions with relay output: 1 potential-free relay contact, max. 2 A / 250 V AC, 60 W / 62.5 VA- Versions with external measuring cell: For this reason measuring device includes wall brac
€261.75*
Tip
Select stainless steel conductivity sensor 100°C (max. 13 bar) for high temperatures and high pressure (LF)
Product number:
891221
Cell constant:
1
|
Maximum temperature and pressure:
max. 100 °C / max. 13 bar (200 psig)
|
Measuring resistor (temperature sensor):
PT1000
|
Version:
1/2“ NPT
Our Neomeris Select high temperature conductivity cells are suitable in a wide range of high performance applications with high temperatures and pressures.To meet these demanding technical requirements, our sensors are manufactured from 316 stainless steel with PEEK elements and feature a one-piece cell design suitable for high pressure conditions. The conductivity cells are available with different cell constants (0.1/cm and 1.0/cm) and temperature sensors (PT100 and PT1000) and are designed for a specific pressure-temperature range. Certain model types also allow you to choose between a short and long thread, depending on the installation situation.Our 1/2" inch Select LF stainless steel conductivity cell is a general purpose sensor that can be used in a variety of standard applications such as in cooling towers or water treatment plants, etc. and is easy to install. In contrast, our Select HTLF Ultra high performance conductivity cell is the top of the range model. This conductivity sensor is specially designed for boiler applications where it is permanently integrated in the boiler. Via our selection menu you can easily choose the right conductivity sensor for your application. Please contact us if you have any questions.
€456.25*
Tip
Select stainless steel conductivity sensor 200°C (max. 17 bar) for high temperatures and high pressure (HTLF)
Product number:
890791
Cell constant:
0.1
|
Maximum temperature and pressure:
max. 200 °C / max. 17 bar (250 psig)
|
Measuring resistor (temperature sensor):
PT1000
|
Version:
3/4“ NPT for installation in 3/4“ T-piece
Our Neomeris Select high temperature conductivity cells are suitable in a wide range of high performance applications with high temperatures and pressures.To meet these demanding technical requirements, our sensors are manufactured from 316 stainless steel with PEEK elements and feature a one-piece cell design suitable for high pressure conditions. The conductivity cells are available with different cell constants (0.1/cm and 1.0/cm) and temperature sensors (PT100 and PT1000) and are designed for a specific pressure-temperature range. Certain model types also allow you to choose between a short and long thread, depending on the installation situation.Our 1/2" inch Select LF stainless steel conductivity cell is a general purpose sensor that can be used in a variety of standard applications such as in cooling towers or water treatment plants, etc. and is easy to install. In contrast, our Select HTLF Ultra high performance conductivity cell is the top of the range model. This conductivity sensor is specially designed for boiler applications where it is permanently integrated in the boiler. Via our selection menu you can easily choose the right conductivity sensor for your application. Please contact us if you have any questions.
€418.75*
Tip
Select stainless steel conductivity sensor 252°C (max. 41 bar) for high temperatures and high pressure (HTLF ULTRA)
Product number:
891222
Cell constant:
1
|
Maximum temperature and pressure:
max. 252 °C / max. 41 bar (600 psi)
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Measuring resistor (temperature sensor):
PT100
|
Version:
3/4“ NPT for installation in 3/4“ T-piece
Our Neomeris Select high temperature conductivity cells are suitable in a wide range of high performance applications with high temperatures and pressures.To meet these demanding technical requirements, our sensors are manufactured from 316 stainless steel with PEEK elements and feature a one-piece cell design suitable for high pressure conditions. The conductivity cells are available with different cell constants (0.1/cm and 1.0/cm) and temperature sensors (PT100 and PT1000) and are designed for a specific pressure-temperature range. Certain model types also allow you to choose between a short and long thread, depending on the installation situation.Our 1/2" inch Select LF stainless steel conductivity cell is a general purpose sensor that can be used in a variety of standard applications such as in cooling towers or water treatment plants, etc. and is easy to install. In contrast, our Select HTLF Ultra high performance conductivity cell is the top of the range model. This conductivity sensor is specially designed for boiler applications where it is permanently integrated in the boiler. Via our selection menu you can easily choose the right conductivity sensor for your application. Please contact us if you have any questions.
€517.25*
SO 5 Conductive conductivity probe without temperature sensor
Product number:
310003
Cell constant:
0.5
|
Maximum medium temperature:
40 °C
|
Measuring resistor (temperature sensor):
without
|
Version:
PVC union nut Rp 1 ¼"
Technical data:Measuring range: 5-10.000 µS/cmCell constant: 0,5 cmConnection: PVC union nut Rp 1 ¼''Max. temperature: 40°CMeasuring resistor: withoutMaterial: Stainless steelMax. Pressure: up to 6x10⁵ PA (6 bar)
€266.40*