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Help CenterStandalone Ammonia(NH3) Detector
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QB2000F single-point wall-mounted NH3 alarm detector (hereinafter referred to as detector) is a kind of fixed type detector that can be used continuously in operation environment to detect the density of combustion gas, oxygen, or poisonous gas.
The alarm detector adopts natural spreading method to detect the density of the gas, and it use the imported electric chemical sensor (flammable gas is catalytic combustion type) which has excellent sensibility and receptivity; big liquid crystal screen displays the density of the leaked gas real time and if the density exceed the preset alarm point it will start the acoustic-optical alarm or the exhaust system; international standard signal of 4-20mA can be directly connected into the factory DCS system, RS485 digital signal is connected with factory’s principle computer; the device adopts embedded micro controlling technique, the Chinese menu is easy to operate and the function is complete and reliable. The performance of the whole device is among the best ones in China.
Characteristics:
◆the device adopts advanced 16 digit ultra-low power consumption embedded micro controller.
◆128*64 dot matrix ultra-large liquid-crystal display
◆user can set the alarm point by themselves
◆Chinese menu is easy to operate for domestic customers
◆displaying the time of fist alarm
◆real-time clock
◆modularized sensor can be changed
◆the automatic correcting function can decrease the measuring error.
◆500 pieces of alarm record can be stored automatically
◆standby battery can work more than 12 hours in the condition that do not work (optional)
◆standard signal of 4-20mA can be directly connected into the factory DCS system
◆RS485 digital signal is connected with factory’s principle computer
Detect scope:See the chart
◆Apply to such gas as: flammable gas, toxic gas, NH3
◆Alarm points: see the chart
◆Error show: ≤± 3% F.S
◆Affecting time: T90<30s
◆Displaying Method:128*64 dot matrix ultra-large liquid-crystal display for data and system condition
◆Alarm: wide-angle LED, 100dB buzzer increases the frequency with the increasing of the density, treble vibrating alarm
◆Alarm point: class one, user can set it by themselves
Alarm of class two: users set it by themselves
◆Alarming output: two relay output,capacity AC 220V 2A
◆Signal output: International standard: 4-20mmA signal which can be directly connected into factory’s DCS system
RS485 digital signal can be connected into the factory’s principle computer.
◆Operation condition:-30℃~+ 50 ℃;Humidity95%RH without moisture condescension
◆Working voltage:AC 220V 50Hz
◆The standby battery can work more than 100 hours continuously under the non-alarming condition, and can work 8 hours for flammable gas(optional)
◆Defending class:IP66
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