G-series Combustible Gas Detectors with Analoge Output
Negotiable /Piece
Min.Order:1 Piece
Combustible gas detector G-series for wall mounting
G-series Combustible Gas Detectors Gases
• Methane, CH4
• Liquid Petroleum Gas, LPG
• Hydrogen, H2
• Propane, C3H8
• Ethylene, C2H4
• Ethyl alcohol, C2H5OH
• Methanol, CH3OH
• Acetone, C3H6O
• Isopropyl alcohol, C3H8O
• Iso/n-Butane, C4H10
• Toluene, C7H8
• Petrol Vapors
On request: other combustible gas detectors
G-series Combustible Gas Detectors Features
• Pellistor (Catalytic Bead) sensor
• Power supply 24 Vdc for output 4-20 mA
• Power supply 24 Vac for output 2-10 Vdc
• Measuring ranges: see ordering on page
• IP65 enclosure with quick locking screws
• Digital measurement value processing incl. temperature compensation
• Internal function control with integrated hardware watchdog
• Data / measured values in micro controller of sensor unit, therefore simple exchange uncalibrated <> calibrated
• High accuracy, selectivity and reliability
• Low zero point drift
• Hardware & software according to SIL2 compliant development process
• Easy maintenance and calibration by exchange of the sensor unit or by comfortable on-site calibration
G-series Combustible Gas Detectors Options
• LCD display
• LCD display for values & operation, 2 x open-collector for horn & warning lamp.
• Duct mounting set available for sensing combustible gas in ventilation ducts.
G-series Combustible Gas Detectors Technical data
Electrical | |
Power supply | 16-29 Vdc, reverse-polarity protect.; 18-27 Vac (only for output signal 2-10 Vdc) |
Power consumpt. | 75 mA, max. (1.8 VA for 24 V) |
Analog output signal | Proportional, overload and short-circuit proof, load <500 Ohm for current signal, <50 kOhm for voltage signal 4 - 20 mA or 2 - 10 V = measuring range 3.2 <4 mA or 1.6 - 2 V = under range > 20- 21.2 mA or 10 - 10.6 V = over range 2 mA or 1 V = fault > 21.8 mA or 10.9 V = fault High |
Sensor performance | |
Gas type | See Order Information |
Sensor element | Pellistor (Catalytic Bead) |
Accuracy | +/-1% |
Resolution | 0.2% |
Response time t90 | <15 sec. |
Zero Point variation | 0.5% |
Long-term zero-point drift | <0.5% LEL |
Long-term sensivity drift | <1% |
Temp. range | +20 °C to +50 °C |
Humidity range | 5 to 95% RH non-condensation |
Sensor life time | > 36 months / normal ambient conditions |
Calibration interval | 6 months |
Poisoning | |
Pressure range | Atmospheric ± 20 % |
Storage temp. | +5 °C to +30 °C |
Storage time | 6 months |
Poisoning | Sensitivity of pellistor sensor can be influenced by substances containing silicon compounds and even poisoned and destroyed them |
Physical | |
Housing | Polycarbonate UL 94 V2 |
Enclosure color | RAL 7032 (light grey) |
Dimensions | (W x H x D)94 x 130 x 57 mm |
Protection class | IP 65 |
Wire connection | Screw-type terminal min. 0.25 mm2, max. 1.3 mm2 ,3-pin |
Directives | EMC directives 2014/30/EU CE Compliance with: EN 50271 EN 61010-1:2010 ANSI/UL 61010-1 CAN/CSA-C22.2 No. 61010-1 |
Warranty | 12 months (not if sensor is poisoned or overloaded) |
Options | |
LCD display | Two lines, 16 characters each, monochrome |
LCD display Open-collector | Two lines, 16 characters each, monochrome |
output (2) | For horn (resettable) and warning lamp |
Switching capacity | 24 Vdc / 50 mA (+ switching) |
Duct Mounting Set | for sensing gases in duct |