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Beijing Huakeyi Technology Co., Ltd
HK-7200A two-wire LED display toxic gas alarm
NegotiableUpdate on 02/11
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Overview
HK-7200A two-wire LED display toxic gas alarm
Product Details
Two line LED display toxic gas alarmyesAn instrument independently developed and produced by Beijing Huake Instrument Technology Co., Ltd. for monitoring the concentration of toxic gases in the on-site environment in the control room can be widely used in fields such as petrochemicals, oil and gas storage and transportation, chemical industry, oil depots, liquefied gas stations, gas boiler rooms, etc. where toxic gases exist.
Advanced embedded microcontroller technology
◆ LED digital display, capable of monitoring and alarming toxic gases in industrial environments, and transmitting real-time gas concentration information to the controller on site
Unique magnetic pen operation method
Advanced surface mount technology and integrated design improve cost-effectiveness and reliability
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display |
OLEDDigital tube display, which can display the current monitoring gas concentration in real-time on site and has high limit, low limit, and fault alarm indicator lights |
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Gas detection |
Toxic gas |
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measuring principle |
electrochemistry |
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Sampling method |
Natural diffusion |
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Gas type |
O2、CO、H2S、H2、CI2、SO2Waiting for toxic gases |
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measurement error |
±3%FS |
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Response time（T90） |
Depending on the sensor |
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ambient temperature |
Depending on the sensor |
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ambient humidity |
Not greater than93%RH(40℃) No condensation |
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atmospheric pressure |
(86～106)kPa |
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signal transmission |
(4~20)mA |
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working voltage |
DC（18~30）V |
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transmission distance |
≤1000m（2.5mm2） |
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Connection method |
Two line system |
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Storage and transportation temperature |
Depending on the sensor |
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signal transmission |
(4~20)mA,(4~20)mA+RS485Bus optional |
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working voltage |
DC(18~30)V |
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Explosion proof mark |
Exd II CT6Gb |
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Protection level |
Achieve IP66 rating |
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Execution standards |
GB12358-2006 JJG695-2003 JJG551-2003 JJG915-1996 |
