Fixed oxygen detector with on-site sound and light alarm

Product Overview

Fixed oxygen detector with on-site sound and light alarmIt is a fixed instrument that can continuously detect the concentration of oxygen leakage gas in the working environment.

The fixed oxygen detector detects gas concentration through natural diffusion and uses catalytic combustion sensors, which have good sensitivity and excellent repeatability; LCD or LED digital displays suitable for factory applications display the concentration value of leaked gas in real time, and immediately activate the sound and light alarm signal or drive the exhaust system when the preset alarm point is exceeded; The standard 4-20mA signal can be directly connected to the factory DCS system, and the RS485 digital signal is connected to the factory upper computer; The instrument adopts embedded microcontroller technology, with simple operation, complete functions, high reliability, and overall performance at the domestic level.

Fixed oxygen detectors have the characteristics of performance, stable and reliable operation, easy installation and maintenance, and comprehensive measurement of gas types, which well meet the requirements of industrial site safety monitoring for high reliability and stable operation of equipment and diversified measurement of gas types; It has been widely used in industries such as petroleum, chemical, metallurgy, refining, gas transmission and distribution, biomedicine, and water treatment.

The fixed oxygen detector consists of a cast aluminum housing, a stainless steel sensor breathing device, a sensor module, a display module, a main control module, a digital communication module, a dust cover, and a calibration cover.

2、 Technical performance indicators and parameters

Target gas: Oxygen

◆ Sensor type: Electrochemical sensor

◆ Sensor lifespan: 2-3 years (specific usage time depends on on-site conditions)

◆ Measurement range:0-30%VOL

Alarm value setting: low alarm 18.5% VOL, high alarm 23% VOL

◆ Working voltage:24VDC±15%
◆ Signal output:4～20mALinear current output; orRS485signal output
◆ Response time:T90less than30second
◆ Recovery time: less than30second
◆ part distinguish Rate: 0.1% VOL
◆ essence Degree:±3%F.S
◆ Ambient temperature-30～+60℃(Specifically based on sensor parameters)
◆ ambient humidity:10-95% R.H.(no condensation)

Installation method: wall mounted or pipe mounted

◆Transmission cable: Three core shielded cable; RS485 is a four core shielded cable
◆ Explosion proof grade:Exd IICT6(Explosion proof application)
◆ Protection levelIP66

◆Exterior structure: precision cast aluminum shell
◆ Size and weight:160mm(L)140mm(W)85mm(H)about1.5kg