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TGas-1031 Methane Gas Detector & Carbon Dioxide Detector
TGas-1031 Methane Gas Detector & Carbon Dioxide Detector

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TGas-1031 Methane Gas Detector & Carbon Dioxide Detector:
1.High and low concentration alarm,
2.It can detector Combustible

  TGas-1031 Methane Gas Detector & Carbon Dioxide Detector

           TGas-1031 Series Combustible, Toxic and Harmful Gas Transmitter can continuously measure the concentration of site gas, and convert the concentration signal into 4-20mA output. It is extensively applied in petroleum, petrochemistry, chemical industry, gas, coal, metallurgy and electric power; safety detection in municipal administration, telecommunication and traffic tunnel construction; the place where combustible, poisonous and harmful gas might leak, such as gasholder station and special industrial factory building, etc.

Main features

l          Two kinds of optional mode of power supply, including centralized busbar type and independent area type

l          High and low concentration alarm, performing real-time monitor to gas

l          Anti-poisoning type gas sensor with high sensitivity

l          Automatic modification of ageing curve of sensor, keeping constant alarm sensitivity

l          Function of automatic recognition of sensor trouble, function of high concentration gas above-norm of sensor

l          Function of automatic detection at starting up, and it has advanced function of self-diagnosis and self-reparing.

l          The calibrated concentration value is adjustable, facilitating users to set by themselves

l          When the sensor loses the function of monitoring alarm because of ageing, the detector is capable of automatic recognition and alarm, so as to effectively avoid missing report.

 

Technical parameters

Parameters

Characteristics

Detectable gas

Combustible vapour of liquids, including methane, LPG, coal gas and gasoline, etc., as well as poisonous and harmful gas

Measurement precision

±5%F.S

Repeatability

2%

Measurement range

Refer to lectotype table for details

Drift

Zero drift: ±2%F.S

Range drift: ±5%F.S

Response time

<30s(T90)

Sampling method

Diffusion

Working environment

Temperature: -30°C to 60°C; humidity: below 85% (no coagulation)

Remote control mode

By 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 output

The 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

Communication

Communication description: two-wire system parallel RS485 protocol, 32 points at most

Connection: Twisted pair with shield

Distance: maximum 1000m

Input voltage

24VDC±25%; power: 2W/way

Certificate

Explosion-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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