Introduction
HCM-2000 hydrogen concentration transmitter is a fixed instrument that can continuously detect hydrogen concentration in the working environment.
HCM-2000 hydrogen concentration transmitter detects gas concentration in a natural diffusion method. It uses imported electrochemical sensors with excellent sensitivity and excellent repeatability; LCD liquid crystal or LED digital displays suitable for factory applications can display the concentration of leaking gas in real time. If the preset alarm point is exceeded, the sound and light alarm signal or drive the exhaust system will be activated immediately; the international standard 4-20mA signal can be directly connected to the factory DCS system, and the RS485 digital signal can be connected to the factory upper computer; the instrument adopts embedded micro-control technology, simple operation, Complete functions, high reliability, and the performance of the whole machine is at the leading domestic level.
HCM-2000 hydrogen concentration transmitter has the characteristics of excellent performance, stable and reliable operation, convenient installation and maintenance, and complete measurement gas types, which greatly meets the requirements of industrial site safety monitoring for high reliability and stable operation of equipment and diversified measurement gas types. Has been widely used in petroleum, chemical, metallurgy, refining, gas transmission and distribution, biochemical medicine and water treatment industries.
HCM-2000 hydrogen concentration transmitter is composed of a cast aluminum shell, 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.
Technical parameters
Target gas: hydrogen
◆ Sensor type: imported electrochemical sensor
◆ Measuring range: 0~4%VOL (special range can be customized)
◆ Alarm value setting: can be set according to needs
◆ Alarm reminder: super bright luminous alarm indicator
◆ Alarm output: passive switch output, capacity AC220V/2A
independent sound and light alarm output
◆ Operating voltage: 24VDC±15%
◆ Signal output: standard 4~20mA linear current output; or RS485 isolated digital signal
◆ Response time: T90 is less than 30 seconds
◆ Precision: ±3%F.S.
◆ Display mode: LED digital tube display (optional LCD liquid crystal display)
◆ Ambient temperature: -30~+60℃ (according to sensor parameters)
◆ Environmental humidity: 10~95% R.H. (non-condensing) 
◆ Explosion-proof grade: Exd IICT6
◆ Protection level: IP66 
◆ Appearance structure: precision cast aluminum housing
◆ Installation method: wall-mounted or pipelined
◆ Transmission cable: 3x1.5mm2 shielded cable; RS485 is 4x2.5mm2 shielded cable
◆ Transmission distance: ≤1000m
◆ Size and weight: 160mm(L)x140mm(W)x85mm(H), about 1.2kg