Fixed H2S/CO/CO2/SO2 toxic gas detector 4-20mA RS485

TCB3 on line gas analyzer 

product description

The outstanding feature of TCB3 series point gas detectors is the use of high-performance imported electrochemical gas sensor, combined with sophisticated SMD process, which has good repeatability and resistance to humidity temperature interference. Long life, easy operation and other advantages. It is suitable for detecting gas leakage concentration in various industrial environments.

TCB3 point-type gas detector can convert the concentration signal of gas leaking in the air into an electrical signal for remote transmission. It adopts three-wire 4-20mA, four-wire RS485 bus (or two-wire), passive switch and other signal structures, which are monitored by The instrument or controller host is far away from the scene to view the detection results.

TCB3 point gas detector products are suitable for industrial sites that use flammable and explosive products, toxic and harmful industrial sites, such as oil refineries, chemical plants, liquefied gas stations, gas boiler rooms, gas refueling stations, paint spraying rooms, pharmaceuticals, iron and steel making Carry out gas safety detection, alarm control and other places.

The main function

* Sound and light warning in one

* Convenient explosion-proof junction box design

* Easy installation of electrical interface

* Wireless operation technology

* Standard installation bracket, rain cover

Technical index

* Detection gas: combustible, oxygen, poisonous gas, VOC (see technical parameters)

* Detection principle: catalytic combustion, electrochemical, infrared, thermal conductivity, etc.

* Detection method: natural diffusion

* Display mode: LDC liquid crystal display, LED digital display

* Indication error: ± 5% FS

* Working power: DC24V / DC36V (two bus)

* Power consumption: 3W / way

* Alarm: sound and light alarm

* Response time: T90 <20s (flammable); T90 <60s (toxic)

* Explosion-proof type: explosion-proof + intrinsic safety

* Ambient temperature: -40 ℃ ~ 70 ℃ (flammable); -20 ℃ ~ 50 ℃ (toxic)

* Environmental pressure: (86 ~ 106) KPa

* Relative humidity: ≤95% RH

* Output signal: 4 ~ 20mA / RS485

* Transmission distance: ≤1500m

* Use cable: 1.5mm² × 3 (three-wire system); 1.5mm² × 4 (four-wire system); 2.5mm² × 2 (two-wire system)

* Structural material: die-cast aluminum

* Connection thread: 20mmX1.5mm free conversion G1 / 2 optional

* Instrument size: (190X160X110) mm

* Relay capacity: two sets of switch output

* Installation method: holding tube or holding

* Explosion-proof grade: Exd ib IIC T6 Gb

* Explosion-proof certificate number: CNEx18.0539X

* Other functions: double cavity mechanism, rain cover

Please refer to the following list to select the gas that you need to detect;