Indoor environmental monitoring oxygen detector

NegotiableUpdate on 01/18

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The non display two-wire 4-20mA oxygen detector uses an electrochemical oxygen sensor as the main detection component, which has the characteristics of accurate measurement, rapid response, long service life, stability and reliability. At the same time, the detector is widely used in many fields such as petrochemicals, metallurgy, environmental monitoring, agriculture, etc. Due to its two-wire 4-20mA current loop working mode, the farthest transmission distance can reach 1000 meters. At the same time, its simple wiring and no distinction between positive and negative polarity make it easy to install and install in on-site construction. It has been unanimously recognized by everyone and has been widely used.

Product Details

No display, two-wire 4-20mA oxygen detectorUsing cast aluminum explosion-proof shell as the protective shell, it also has the characteristics of small size, light weight, and easy installation,No displayTwo wire 4-20mA oxygen detectorUsing an electrochemical oxygen sensor as the oxygen concentration detection element, the oxygen concentration is converted into an electrical signal. The weak electrical signal is then amplified by an amplifier and sent to a microprocessor for signal processing. It is then converted into a standard two-wire (4-20) mA current signal and transmitted to the required upper computer equipment. The connection between the two-wire 4-20mA oxygen concentration detection detector and the upper equipment only requires one two core cable, and the connection does not distinguish between positive and negative polarity. It superimposes the signal with the power supply, which can not only supply power to the equipment but also transmit signals, greatly solving the difficulty of on-site construction wiring and making equipment debugging, installation, and maintenance faster and more convenient. In addition, this transmitter measures accurately, responds quickly, has a long lifespan, and is stable and reliable, making it very suitable for places such as petrochemicals, metallurgy, and environmental monitoring that require monitoring of oxygen concentration.

Product Features:

1> Adopting cast aluminum explosion-proof shell

2> Compact in size, lightweight, and easy to install.

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> Two electrodes are connected without polarity, and the connection does not distinguish between positive and negative poles.

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

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

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

10> 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: Two core shielded cable, recommended cross-sectional area (2 * 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