4-20mA Ammonia Gas Detector Sensor Fixed Gas Detection Gas Monitor
Introduction:
This series of gas detection transmitter use imported
electrochemical sensors (combustible gas using catalytic type),
this new gas detection transmitters have been developed with years
of experience in the development and production of gas detections,
and can be widely used in metallurgy, petroleum, chemical, coking,
municipal, gas, sewage treatment and special industries, and apply
for continuous monitoring of a variety of gas concentration in
working environments. Transmitters use explosion-proof design, 4mA
~ 20mA standard signal or directly into the DCS system, this
transmitter is high sensitivity, fast response, long life, short
polarization time and so on. Our products have achieved the
domestic similar product advanced level.
Diagram:
Technical Data:
Model No.: MT03 Series
Sensor: Electrochemical or Catalytic or Infrared Sensor
Responding time: ≤40s
Work pattern: Continuous operation
Working power supply: DC24V
Output Current: 4－20mA(or direct output relay switch)
Output: Two-wire or three-wire system(combustible gas only two-wire
system)
Temperature range: －20℃ ～ 50℃
Humidity range: 10 ～ 90％(RH)No condensation
Ex-Proof: Exd II CT6
Gas Measurement List:
| No. | Gas | Detecting Range | Resolution | Low/High Level | Accuracy |
| 1 | PH3 | 0-20ppm | 0.1ppm | 5ppm/10ppm | ±5%(F.S) |
| 2 | O2 | 0-30%vol | 0.1%vol | 19.5%vol/23.0%vol | ±5%(F.S) |
| 3 | EX | 0-100%LEL | 1%LEL | 25%LEL/50%LEL | ±5%(F.S) |
| 4 | CO | 0-1000ppm | 1ppm | 50ppm/100ppm | ±5%(F.S) |
| 5 | H2S | 0-100ppm | 1ppm | 10ppm/20ppm | ±5%(F.S) |
| 6 | NO2 | 0-20ppm | 0.1ppm | 3ppm/10ppm | ±5%(F.S) |
| 7 | NO | 0-250ppm | 1ppm | 25ppm/50ppm | ±5%(F.S) |
| 8 | SO2 | 0-20ppm | 0.1ppm | 5ppm/10ppm | ±5%(F.S) |
| 9 | CL2 | 0-20ppm | 0.1ppm | 1ppm/10ppm | ±5%(F.S) |
| 10 | NH3 | 0-100ppm | 1ppm | 25ppm/50ppm | ±5%(F.S) |
| 11 | H2 | 0-1000ppm | 1ppm | 50ppm/100ppm | ±5%(F.S) |
| 12 | HCN | 0-10ppm | 0.1ppm | 1ppm/5ppm | ±5%(F.S) |
| 13 | HCL | 0-10ppm | 0.1ppm | 1ppm/5ppm | ±5%(F.S) |
| 14 | CH4 | 0-100%LEL | 1%LEL | 25%LEL/50%LEL | ±5%(F.S) |
Note: Special gas or different range is also available
