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  • TGas-1031 Fixed On-line Gas Transmitter

TGas-1031 on-line gas transmitter which adopts high performance sensor unit can continuously measure the concentration of gas on site and convert the concentration signal into digital or analog signal output(4-20mA analog signal,RS485 communication signal and switch quantity alarm signal to transmit remotely and drive).

It is widely used in such industries such as petroleum, chemical, natural gas, coal, metallurgy, electric power, municipal administration, telecom,tunnel construction,gas storage station, special plants and other places where flammable gases or toxic and harmful gases exist.

 

 

  • Two kinds of optional mode of power supply, including centralized busbar type and independent area type.
  • High and low concentration alarm, performing real-time monitor to gas.
  • Anti-poisoning type gas sensor with high sensitivity .
  • Automatic modification of ageing curve of sensor, keeping constant alarm sensitivity.
  • Function of automatic recognition of sensor trouble, function of high concentration gas above-norm of sensor.
  • Function of automatic detection at starting up, and it has advanced function of self-diagnosis and self-reparing.
  • The calibrated concentration value is adjustable, facilitating users to set by themselves.
  • When the sensor loses the function of monitoring alarm because of ageing, the detector is capable of automatic recognition and alarm, so as to avoid missing report effectively.

 

ModelRangeLow alarm

setting range

High alarm

setting range

Low

alarm point

High

alarm point

TGas-1031-FL0~100%LEL5%~10%LEL25%~80%LEL20%LEL50%LEL
TGas-1031-H20~1000ppm100ppm~300ppm400ppm~600ppm100ppm500ppm
TGas-1031-O20~30%vol16%~19.5%vol22.5%~24%vol19.5%vol23.5%vol
TGas-1031-CO-10~500ppm25ppm~100ppm100ppm~500ppm35ppm200ppm
TGas-1031-CO-20~1000ppm25ppm~100ppm100ppm~500ppm35ppm200ppm
TGas-1031-CO2-10~5%vol1000~2500ppm2500~5000ppm1500ppm2500ppm
TGas-1031-CO2-20~20%vol4%~8%8%~16%5%10%
TGas-1031-CO2-30~65%vol13%~26%26%~52%15%30%
TGas-1031-CO2-40~100%vol20%~40%40~80%30%50%
TGas-1031-H2S0~100ppm5ppm~15ppm15ppm~30ppm10ppm15ppm
TGas-1031-SO20~20ppm1ppm~3ppm3ppm~10ppm2ppm5ppm
TGas-1031-CL20~10ppm0.5ppm~3.5ppm4ppm~6ppm0.5ppm5ppm
TGas-1031-NH30~100ppm20ppm~30ppm30ppm~70ppm25ppm50ppm
TGas-1031-NO0~250ppm20ppm~50ppm50ppm~100ppm25ppm50ppm
TGas-1031-NO20~100ppm1ppm~2ppm2ppm~5ppm1ppm2ppm
TGas-1031-HCN0~30ppm5ppm~10ppm10ppm~15ppm5ppm10ppm
TGas-1031-PH30~1ppm0.3ppm~0.5ppm0.5ppm~0.8ppm0.3ppm0.6ppm
ParametersCharacteristics
Detectable gasFlammable gases, oxygen, poisonous and harmful gases
Measurement precision±5%F.S
Repeatability2%
Measurement rangeRefer to lectotype table for details
Response time<30s(T90)
Sampling methodDiffusion
Working environmentTemperature: -30℃ ~ 60℃

humidity: below 85% (non condensation)

Remote control modeBy the adjustment mode by infrared remote control, the detector can be adjusted without opening of cover
4 ~ 20mA

output

4~20mA output corresponding to 0 ~100%

maximum load 800 ohms

Alarm outputThe effective alarm is 1 point or 2 points; each alarm shall use SPDT electronic relay.

Contact rating of alarm relay:

Ohmic load: 5A@24VDC or 120VAC or 240VAC

Inductive load: 50VA

CommunicationCommunication description: three-wire system parallel RS485 protocol, 32 points at most

Connection: Twisted pair with shield

Distance: maximum 1000m

Input voltage24VDC±25%; power: 2W/way
Explosion-proof shellExplosion-proof grade: ExdIICT5

Protection class: IP66

Using cable≥2.5mm2×4 screened cable line, outside diameter of cable is required to be between 6mm~9mm

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