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TCB4 series point-type gas detectors can convert the leakage gas concentration signal in the air into electrical signals and output remote transmission. It adopts two/three-wire system, 485 bus, switch value and other signal structures. The monitoring instrument or controller host is kept away from the scene to view the detection results .
|
Gas |
Measuring range |
Optional range |
Resolution |
Response time |
|
EX |
0-100%LEL |
0-100%VOL (infrared) |
1%LEL/1%VOL |
≤15second |
|
O2 |
0-30%VOL |
0-30%、0-100%VOL |
0.1%/0.01%VOL |
≤15second |
|
H2S |
0-100PPM |
0-50、200、1000PPM |
0.1/1PPM |
≤15second |
|
CO |
0-1000PPM |
0-500/2000/5000PPM |
0.1/1PPM |
≤15second |
|
NO2 |
0-20PPM |
0-50、1000PPM |
0.1/1PPM |
≤20second |
|
Natural gas |
0-100%LEL |
0-100%VOL |
1%LEL/1%VOL |
≤15second |
|
NOX |
0-20PPM |
0-50、1000PPM |
0.1/1PPM |
≤20second |
|
CH4 |
0-100%LEL |
0-100%VOL |
1%LEL/1%VOL |
≤15second |
|
CO2 |
0-5000PPM |
0-1%、5%、10%VOL (infrared) |
1PPM/0.01%VOL |
≤20second |
|
NO |
0-250PPM |
0-500、1000PPM |
1PPM |
≤20second |
|
N2 |
0-100%VOL |
0-100%VOL |
0.1%VOL |
≤15second |
|
Alcohol |
0-100%LEL |
0-100%LEL |
1%LEL/1%VOL |
≤15second |
|
SO2 |
0-20PPM |
0-50、1000PPM |
0.1/1PPM |
≤20second |
|
CL2 |
0-20PPM |
0-10、50、100PPM |
0.1PPM |
≤20second |
|
dichlorosilane |
0-20PPM |
0-20、100PPM |
1/0.1PPM |
≤20second |
|
NH3 |
0-100PPM |
0-50、500、1000PPM |
0.1/1PPM |
≤20second |
|
Silicon tetrachloride |
0-20PPM |
0-20、100PPM |
1/0.1PPM |
≤20second |
|
H2 |
0-1000PPM |
0-40000PPM |
1/10PPM |
≤20second |
|
PH3 |
0-20PPM |
0-20、1000PPM |
0.1/1PPM |
≤20second |
|
HCL |
0-20PPM |
0-20、50、100PPM |
0.1/1PPM |
≤20second |
|
Acrylonitrile |
0-100PPM |
0-100PPM |
1PPM |
≤20second |
|
TVOC |
0-100PPM |
0-100PPM |
1PPM |
≤20second |
|
CLO2 |
0-50PPM |
0-10、100PPM |
0.1PPM |
≤20second |
|
HCN |
0-50PPM |
0-100PPM |
0.1PPM |
≤20second |
|
ETO |
0-10PPM |
0-100、1000PPM |
1PPM |
≤20second |
|
O3 |
0-10PPM |
0-20、100PPM |
0.01/0.1PPM |
≤20second |
|
CH2O |
0-20PPM |
0-50、100PPM |
0.1/1PPM |
≤20second |
|
F2 |
0-10PPM |
0-1、10PPM |
1/0.1PPM |
≤20second |
|
HF |
0-10PPM |
0-1、10、50、100PPM |
0.01/0.1PPM |
≤20second |
|
Xylene, toluene |
0-20PPM |
50、100PPM |
0.1/1PPM |
≤20second |
|
Stench |
0-100PPM |
0-100PPM |
1PPM |
≤20second |
|
For unlisted gas, please contact our sales department |
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|
Detection principle |
electrochemical |
|
Detection of gas |
oxygen |
|
Sampling mode |
natural diffusion |
|
Detection range |
（0～30%）vol |
|
Resolving |
0.1%vol |
|
Measurement error |
±3% |
|
Status indication |
LCD，LED |
|
Ambient temperature |
40°C~70°C (flammable); -20°C~50°C (toxic) Relative humidity: ≤95%RH
|
|
Power consumption |
3W/way |
|
Response time |
T90<20s (flammable); T90<60s (toxic) |
|
Power supply |
DC24V/DC36V (two bus) |
|
Use cable |
2.5mm²×2(two-wire system); 1.5mm²×3(three-wire system); 1.5mm²×4(four-wire system)
|
|
Relay capacity |
two groups of switch output |
|
Environmental pressure |
(86～106)KPa |
|
Transmission distance |
≤1500m |
|
Explosion-proof type
|
flameproof |
|
Explosion-proof certificate number |
CNEX18.0305X |
|
Explosion-proof mark |
Ex d IIC T6 Gb |
|
Measurement number |
2018C239-41 |
|
Instrument size: |
131mmX150mmX109mm |
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