SenTec

SEM332 Compound multi-gas detector

SEM332 is an intrinsically safe compound detector developed for environments containing explosive or toxic gases. It can detect 6 gases: oxygen, combustible gas, carbon monoxide, and hydrogen sulfide, O3,CO2.

SEM332 is an intrinsically safe compound detector developed for environments containing explosive or toxic gases. It can detect 6 gases: oxygen, combustible gas, carbon monoxide, and hydrogen sulfide, O3,CO2.

The shell has high strength and adopts an appearance design with a high-definition color screen, which is convenient to check the gas status and can set high and low alarm values;
The product has three alarm functions: sound, light, and vibration, and has a storage function, which can store up to 130,000 items. The historical data can be checked at any time through the configuration software.
Using electrochemical, catalytic combustion, and diffusion monitoring principles, it can detect four gases: oxygen, combustible gas, carbon monoxide, and hydrogen sulfide, with excellent sensitivity and repeatability.

Parameters

Detection gas

Carbon monoxide (CO)

Hydrogen sulfide (H2S)

Combustible gas (CH4)

Oxygen (O2)

Ozone (O3)

Carbon dioxide (CO2)

Detection range

0-1000 ppm

0-100ppm

0-100% LEL

0.0-30.0%VOL

0~10.00ppm

0-5000 ppm

Test content

75/300/700 ppm

20/50/80ppm

10%/40%/60%LEL

5.0%/15.0%/25.0%VOL

2/5/8ppm

1000/2500/4000ppm

Calibration flow

0.2 L/min

0.2 L/min

0.5 L/min

0.3 L/min

0.02 L/min-

0.2 L/min

Indication error

±5ppm

±2ppm

±5%FS

±3%FS

0.01ppm

1ppm

Repeatability

≤2%

≤2%

≤2%

≤1%

≤2%

≤2%

Zero drift

±3ppm

±2ppm

±2%FS

±1%

 ±1%

±2%FS

Range drift

±5%

±3ppm

±3%FS

 ±1%

 ±1%

±3%FS

Alarm action value

50/150ppm

 10/35ppm

 20/50%LEL

19.5/23.5%VO

Response time

Diffusion type≤60S

Insulation resistance

≥20MΩ

Alarm function

sound, light, vibration

Working environment

temperature -10℃-50℃; humidity <95%RH no condensation

Working voltage

DC3.7V (Lithium battery capacity 3000mAh)

Explosion-proof mark

Ex ib IIB T3 Gb

Charging time

6h-8h

Standby time

more than 8h continuous

Protection class

IP65

Backlight

Automatically turns on when working in low light or when an alarm sounds, or the button is tied down

Signaling device type

Low and high alarm, multiple gas alarm, touch alarm, low battery alarm, fast tone, automatic shutdown alarm

Documents

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