- Cl2
- CO
- H2S
- NH3
- NO2
- O2
- SO2
MF420-C
The measuring sensors of the product family MF420-C determine the concentration of toxic gases and vapors as well as oxygen in the air mixture, by using a specific electrochemical sensor. For further processing, the concentration is output by an 4 - 20 mA interface.
The sensor is characterized by its high measurement accuracy at low cross-sensitivity, even at low concentrations.
In combination with our limit monitors (GWZ) systems can be build up for the detection of toxic gases and vapors in the ambient air, e.g. storage facilities.
The measuring ranges depend on the measured gas or vapor. For a table of ranges please refer to the product assortment. Other gases, vapors, and concentrations are also possible on request. The device complies with the generic standards EN 61000-6-2 and EN 61000-6-3 and thus the EMC Directive 2004/108 / EC. The device is delivered already calibrated. The maintenance cycle must / should correspond to the given safety requirements. We recommend at least a semi-annual inspection of the equipment by qualified personnel. You can also use our service. For more details, please refer to the technical data or ask our contact person.
Other gases & vapors on request.
Measuring Ranges
Certifications
Maintenance and Service
Product Name Product Features Product Code
MF420-C-CL2
Chlorine
Measuring range 0 - 10 ppmG2C0-E04HP-A100
MF420-C-CO-300
Carbon monoxide
Measuring range 0 - 300 ppmG2C0-E10LP-A100
MF420-C-CO-500
Carbon monoxide
Measuring range 0 - 500 ppmG2C0-E10UP-A100
MF420-C-CO-1000
Carbon monoxide
Measuring range 0 - 1000 ppmG2C1-E10MP-A100
MF420-C-H2S
Hydrogen sulfide
Measuring range 0 - 50 ppmG2C0-E15IP-A100
MF420-C-H2S
Hydrogen sulfide
Measuring range 0 - 200 ppmG2C0-E15KP-A100
MF420-C-NH3
Ammonia
Measuring range 0 - 100 ppmG2C0-E02JP-A100
MF420-C-NO2
Nitrogen Dioxid
Measuring range 0 - 50 ppmG2C0-E16IP-A100
MF420-C-NO2
Nitrogen Dioxid
Measuring range 0 - 100 ppmG2C0-E16JP-A100
MF420-C-O2
Oxygen
Measuring range 0 - 25 vol%G2C0-E13WV-A100
MF420-C-SO2
Sulfur Dioxide
Measuring range 0 - 100 ppmG2C0-E14JP-A100
Principle of Measurement
electro chemical sensor
Power Supply
terminal voltage
minimum 14 V DC
Current
approx. 30 mA
Connectors
2 screw terminals with reverse polarity protection
24 V DC ±5% and 4..20 mA
Ambient Temperature
Sensor specific
usually -20°C to +50°C
Air pressure
900 hPa to 1100 hPa
Permissible Humidity
15 to 95% relative humidity
non condensing
Output
4 - 20 mA
Housing
Alloy, red
Protection class
IP 54
Weight
approx. 500 g
Dimensions (L x W x H)
90 x 85 x 65 mm
Connecting cable
2 x 1,5² CU + Functional ground
shielded cable
Pin Assignment:
Product Name Product Features Product Code
Replacement Sensor Set
Consists of:
- Replacement sensor
- Sensor holder
- Sinter
- Sealon request
Calibration Set
Consists of:
- Test gas cap
- O-ringon request