TGas-1031 On-line Harmful Gas Transmitter

TGas-1031 On-line Harmful Gas Transmitter 1.High&low concentration alarm 2.High sensitivity 3.Self-repairing

TGas-1031 Series Combustible, Toxic and Harmful Gas Transmitter

Brief Introduction

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, 

Main features

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 

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

TGas-1031 Combustible, Toxic and Harmful Gas Transmitter