SenTec

SEM328 EX Gas sensor

SEM328 gas transmitter adopts imported first-line brand electrochemical sensor, which has the characteristics of rapid response and strong anti-interference ability; Wide voltage 10-30V DC power supply, standard Modbus-RTU communication protocol 485 signal output, address and baud rate can be set, the communication distance is up to 2000 meters; The on-site power supply adopts 10~30V DC wide-voltage power supply, supports a variety of gas detection, and the range can be customized;

SEM328 gas transmitter adopts imported first-line brand electrochemical sensor, which has the characteristics of rapid response and strong anti-interference ability; Wide voltage 10-30V DC power supply, standard Modbus-RTU communication protocol 485 signal output, address and baud rate can be set, the communication distance is up to 2000 meters; The on-site power supply adopts 10~30V DC wide-voltage power supply, supports a variety of gas detection, and the range can be customized;
SEM328 are using remote infrared remote control technology, after our unique compensation algorithm, multi-stage standard gas calibration, it also has the characteristics of long life, high precision, high repeatability and high stability;Optional high-quality LCD screen, the value can be viewed directly on site, and can be displayed clearly at night.

Parameters

Gas

Range

Resolution

Response time

Accuracy

CO2

0-5000PPM/10000PPM

1PPM

≤90s

±5%(F.S)

O2

0-30VOL

0.1%VOL

≤15s

±5%(F.S)

O3

0-100PPM

1PPM

≤15s

±5%(F.S)

H2S

0-100PPM

1PPM

≤30s

±5%(F.S)

CH4

0-100%LEL

1%LEL

≤5s

±5%(F.S)

CO

0-1000PPM/2000PPM

1PPM

≤25s

±5%(F.S)

NO2

0-20PPM

0.1PPM

≤25s

±5%(F.S)

SO2

0-20PPM

0.1PPM

≤30s

±5%(F.S)

H2

0-1000PPM

1PPM

≤60s

±5%(F.S)

NH3

0-100PPM

1PPM

≤50s

±5%(F.S)

TVOC

0-60PPM

0.001PPM

≤60s

±5%(F.S)

Signal outputRS485, 4~20mA, 0-10V, 0-5V
Working environmentTemperature -20℃-50℃; humidity <95%RH without condensation
Relay with load capacity250VAC 1A/30VDC 1A
Power consumptionRS485 type: 0.35W, analog type: 1.0W
VoltageDC 10-30V
Working pressure80~120Kpa
EXEx d IIC T6 Gb

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