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Electrochemical sensor including digital value processing and integrated self-diagnosis, for the continuous monitoring of the ambient air to detect toxic gases or oxygen.
The intelligent SC2 Sensor for detection of combustible gases or oxygen monitoring includes an electrochemical cell and electronics with a measuring amplifier and a µController for the digital processing of the measured values. All relevant data and measured values of the sensor are stored fail-safe in the internal memory of the µProcessor and are transmitted digitally to the Board (SB2, WSB2, MSC2, MSB2) via the MSR local bus. The maintenance of a device can be done either by simply exchanging the sensor or by using the integrated, comfortable calibration routine directly at the system.
NOTE: Wide range of Gas Sensors available. Please contact us to discuss your requirements. Price given is for standard range LPG, Methane or Propane.
Gases available include (some have a number of ranges or sensor lifetimes):
Carbon Monoxide (CO), Carbon Dioxide (CO2), Nitrogen Monoxide (NO), Nitrogen Dioxide (NO2), Oxygen (O2), Ozone (O3), Hydrogen Sulphide (H2S), Ammonia (NH3), Formaldehyde (CH2O), Hydrogen Chloride (HCL), Ethylene (C2H4), Chlorine (Cl2), Sulphur Dioxide (SO2), Methane (CH4), Propane (C3H8), Freon Gases (R134a etc), LPG, Hydrogen (H2) and more.
ELECTRICAL
| Power supply | 5V DC from Board (SB2/WSB2/MSC2/MSB2), reverse polarity protected |
| Power consumption |
Electrochem: 10 mA, max. (0.05VA) IR (NDIR): 50mA max. (0.25VA) Semiconductor: 160mA max (0.8VA) |
| Serial interface local bus | 1-wire / 19200 Baud |
SENSOR ELEMENT
| Gas type and measuring range | See Ordering Information |
| Measuring principle | Electrochemical |
| Storage time1 | ~ 6 months |
| Poisoning | Electrochemical sensor elements are susceptible to poisoning by organic solvents. |
| Measuring principle | Infrared (NDIR) |
| Repeatability | < ± 5 % signal |
| t90 time | ≤ 90 s |
| Drift in air | n.d. |
| Pressure range | 90–110 kPa (influence + 1.6 % on measured value per kPa) |
| Storage time | ~ 6 months |
| Poisoning | IR sensors can show symptoms of poisoning due to contamination with oils and lubricants. |
| Measuring principle | Semiconductor |
| Measuring range | 0-2000ppm |
| Repeatability | ± 20 % signal |
| t90 time | t90 ≤ 150 s (R134a) |
| Temperature range | -30 °C to +60 °C (-22 to 140 °F) |
| Humidity range | 15–90 % RH non-condensing |
| Pressure range | 90–110 kPa |
| Storage temperature range2 | 0 °C to +50 °C (32 °F to 140 °F) |
| Storage time3 | ~12 months |
| Life time4 in air | > 5 years |
| Calibration interval5 | ~ 12 months |
| Poisoning | Semiconductor sensors can be poisoned by silicone-containing substances or other catalyst poisons, up to complete loss of sensitivity. Their sensitivity is irreversibly impaired by halogen-containing compounds. |
1 If stocked for a longer period, we recommend checking the zero point and recalibrating if necessary
2 A deviating storage temperature can have a negative effect on sensitivity and service life.
3 If stocked for a longer period, we recommend checking the zero point and recalibrating if necessary.
4 Expected service life for normal ambient conditions.
5 Manufacturer-recommended calibration intervals for normal environmental conditions
Semiconductor sensors that have been exposed to an increased gas concentration (> ½ full scale value) during normal measuring operation must be replaced without fail.
Full Specifications for other sensor types can be found in the datasheets in the Technical section below.
PHYSICAL
| Housing | Plastic | Stainless Steel |
| Material | Polycarbonate | CrNi steel: 1.4404 |
| Combustion | UL 94 V2 | - |
| Housing colour | Light grey RAL 7032 | Natural |
| Dimensions (Ø x H) |
Type P: 24 x 22 mm (0.94 x 0.87 in.) Type L: 24 x 30 mm (0.94 x 1.18 in.) |
Type S: 30 x 61 mm (1.18 x 2.40 in.) |
| Weight | ~30 g (0.066 lb) | ~ 150g |
| Protection class | IP65 | IP64 |
| Mounting | Screw mounting, external thread M25 x 1.5 mm |
Screw mounting, external thread NPT ¾“ ANSI/ B1.20.1 / M30 x 1,5 mm |
| Connection type |
3-pin connector |
3-pin connector |
| Cable Length |
Standard: Ca. 150 mm (5.91 in.) Cable extension (5, 10 and 15 m) |
Cable extension (5, 10 and 15 m) |
REGULATIONS
| Directives |
EMC directives 2014/30/EU
Compliance with: |
| Warranty | 1 year on sensor (not if poisoned or overloaded) |
|
3-pin connector |
SC2 Sensors available
SC2 Tox (CO, NH3, NO, NO2, VOC, HCN, CH2O, HCl, C2H4, O3, CL2, H2, SO2, H2S, ETO)
SC2 Premium IR ( R32, CH4, CO2, C3H8)
SC2 IR (CH4, C3H8, CO2)
SC2 SemiConductor (NH3, C2H4)
SC2 for Freon Gases & Refrigerants
SC2 for Freon Gases/Refrigerants in LEL Range
SC2 Catalytic Sensor for Combustible Gases (inc. LPG, Petrol Vapours, Propane etc.)
Electrochemical sensor including digital value processing and integrated self-diagnosis, for the continuous monitoring of the ambient air to detect toxic gases or oxygen.
The intelligent SC2 Sensor for detection of combustible gases or oxygen monitoring includes an electrochemical cell and electronics with a measuring amplifier and a µController for the digital processing of the measured values. All relevant data and measured values of the sensor are stored fail-safe in the internal memory of the µProcessor and are transmitted digitally to the Board (SB2, WSB2, MSC2, MSB2) via the MSR local bus. The maintenance of a device can be done either by simply exchanging the sensor or by using the integrated, comfortable calibration routine directly at the system.
NOTE: Wide range of Gas Sensors available. Please contact us to discuss your requirements. Price given is for standard range LPG, Methane or Propane.
Gases available include (some have a number of ranges or sensor lifetimes):
Carbon Monoxide (CO), Carbon Dioxide (CO2), Nitrogen Monoxide (NO), Nitrogen Dioxide (NO2), Oxygen (O2), Ozone (O3), Hydrogen Sulphide (H2S), Ammonia (NH3), Formaldehyde (CH2O), Hydrogen Chloride (HCL), Ethylene (C2H4), Chlorine (Cl2), Sulphur Dioxide (SO2), Methane (CH4), Propane (C3H8), Freon Gases (R134a etc), LPG, Hydrogen (H2) and more.
ELECTRICAL
| Power supply | 5V DC from Board (SB2/WSB2/MSC2/MSB2), reverse polarity protected |
| Power consumption |
Electrochem: 10 mA, max. (0.05VA) IR (NDIR): 50mA max. (0.25VA) Semiconductor: 160mA max (0.8VA) |
| Serial interface local bus | 1-wire / 19200 Baud |
SENSOR ELEMENT
| Gas type and measuring range | See Ordering Information |
| Measuring principle | Electrochemical |
| Storage time1 | ~ 6 months |
| Poisoning | Electrochemical sensor elements are susceptible to poisoning by organic solvents. |
| Measuring principle | Infrared (NDIR) |
| Repeatability | < ± 5 % signal |
| t90 time | ≤ 90 s |
| Drift in air | n.d. |
| Pressure range | 90–110 kPa (influence + 1.6 % on measured value per kPa) |
| Storage time | ~ 6 months |
| Poisoning | IR sensors can show symptoms of poisoning due to contamination with oils and lubricants. |
| Measuring principle | Semiconductor |
| Measuring range | 0-2000ppm |
| Repeatability | ± 20 % signal |
| t90 time | t90 ≤ 150 s (R134a) |
| Temperature range | -30 °C to +60 °C (-22 to 140 °F) |
| Humidity range | 15–90 % RH non-condensing |
| Pressure range | 90–110 kPa |
| Storage temperature range2 | 0 °C to +50 °C (32 °F to 140 °F) |
| Storage time3 | ~12 months |
| Life time4 in air | > 5 years |
| Calibration interval5 | ~ 12 months |
| Poisoning | Semiconductor sensors can be poisoned by silicone-containing substances or other catalyst poisons, up to complete loss of sensitivity. Their sensitivity is irreversibly impaired by halogen-containing compounds. |
1 If stocked for a longer period, we recommend checking the zero point and recalibrating if necessary
2 A deviating storage temperature can have a negative effect on sensitivity and service life.
3 If stocked for a longer period, we recommend checking the zero point and recalibrating if necessary.
4 Expected service life for normal ambient conditions.
5 Manufacturer-recommended calibration intervals for normal environmental conditions
Semiconductor sensors that have been exposed to an increased gas concentration (> ½ full scale value) during normal measuring operation must be replaced without fail.
Full Specifications for other sensor types can be found in the datasheets in the Technical section below.
PHYSICAL
| Housing | Plastic | Stainless Steel |
| Material | Polycarbonate | CrNi steel: 1.4404 |
| Combustion | UL 94 V2 | - |
| Housing colour | Light grey RAL 7032 | Natural |
| Dimensions (Ø x H) |
Type P: 24 x 22 mm (0.94 x 0.87 in.) Type L: 24 x 30 mm (0.94 x 1.18 in.) |
Type S: 30 x 61 mm (1.18 x 2.40 in.) |
| Weight | ~30 g (0.066 lb) | ~ 150g |
| Protection class | IP65 | IP64 |
| Mounting | Screw mounting, external thread M25 x 1.5 mm |
Screw mounting, external thread NPT ¾“ ANSI/ B1.20.1 / M30 x 1,5 mm |
| Connection type |
3-pin connector |
3-pin connector |
| Cable Length |
Standard: Ca. 150 mm (5.91 in.) Cable extension (5, 10 and 15 m) |
Cable extension (5, 10 and 15 m) |
REGULATIONS
| Directives |
EMC directives 2014/30/EU
Compliance with: |
| Warranty | 1 year on sensor (not if poisoned or overloaded) |
|
3-pin connector |
SC2 Sensors available
SC2 Tox (CO, NH3, NO, NO2, VOC, HCN, CH2O, HCl, C2H4, O3, CL2, H2, SO2, H2S, ETO)
SC2 Premium IR ( R32, CH4, CO2, C3H8)
SC2 IR (CH4, C3H8, CO2)
SC2 SemiConductor (NH3, C2H4)
SC2 for Freon Gases & Refrigerants
SC2 for Freon Gases/Refrigerants in LEL Range
SC2 Catalytic Sensor for Combustible Gases (inc. LPG, Petrol Vapours, Propane etc.)
