Wholesale of domestic gas detectors

Three wire 4-20mA point type gas detectorThe oxygen gas concentration detection transmitter adopts a cast aluminum explosion-proof shell as the protective shell, and has the characteristics of small size, light weight, and easy installation. The electrochemical oxygen sensor is used as the oxygen concentration detection element to convert the oxygen concentration content into an electrical signal. The weak electrical signal is amplified by the amplifier and sent to the microprocessor for signal processing, and then converted into a standard (4~20) mA current signal, which is transmitted to the required upper computer equipment. The connection between the transmitter and the upper equipment only requires a three core cable, making equipment debugging, installation, and maintenance faster and more convenient. In addition, this transmitter has strong electromagnetic interference resistance, precise measurement, rapid response, long service life, stability and reliability, making it very suitable for places such as petrochemicals, metallurgy, and environmental monitoring that require monitoring of oxygen concentration.

Three wire 4-20mA point type gas detector

Product Features:

1> Adopting cast aluminum explosion-proof shell

2> Compact size, light weight, easy installation, on-site alarm.

3> Built in 4-series electrochemical sensor.

4> Equipped with one click zero adjustment and one click calibration functions.

5> Output standard (4-20) mA current signal.

6> The maximum transmission distance of the standard (4-20) mA current signal is up to 1000 meters.

7> Can be equipped with various devices such as PLC, DCS system, GDS system, gas alarm controller, etc.

8> Accurate measurement, rapid response, long lifespan, stable and reliable.

9> Strong anti electromagnetic interference performance, more suitable for complex industrial environments.

Technical Specifications

1> Gas detection: Oxygen

2> Detection method: natural diffusion type

3> Measurement range: (0~25)%, (0~30)%

4> Response time: ≤ 60 seconds (T90)

5> Indication error: ± 3% FS

6> Sensor type: Electrochemical

7> Execution standard: JJG365-2008

8> Working mode: Fixed long-term working mode

9> Working voltage: 24V DC

10> Working current:<25ma<>

11> Output signal: (4~20) mA standard current signal

12> Material structure: Die cast aluminum explosion-proof shell

13> Dimensions: (165 * 135 * 75) mm

14> Connecting cable: Three core shielded cable, recommended cross-sectional area (3 * 0.75) mm

15> Connection distance: ≤ 1000m

16> Protection level: IP65

17> Installation method: Wall mounted

18> Explosion proof form: Explosion proof type

19> Inlet: Hexagonal compression nut

20> Interface specification: 20X1.5mm