QD8000 typeGas alarm controllerIt was developed by our companyMulti point monitoring gas alarmIt is used to detect the concentration of the gas to be tested in the ambient air. When the concentration of the gas to be tested in the environment reaches or exceeds the preset alarm value, the controller immediately issues an audible and visual alarm to remind us to take safety measures in a timely manner, and starts the actuator to control the exhaust or other peripheral devices to prevent poisoning accidents, explosions, and fires, thereby ensuring the safety of life and property.
Main functions and features:
◆ Large screen Chinese color LCD display, easy and intuitive operation
◆ Equipped with 16 channels of 4-20mA analog detector inputs
◆ 1 RS-485 digital channel, both analog and digital channels can be used simultaneously, with up to 80 alarm signals available
The system uses a microprocessor as the control unit and high-precision sensors as the detection transmitter, with high sensitivity and fast response speed
◆ Can be equipped with multiple detectors for detecting different gas components, and centrally control multiple points simultaneously
Intelligent management of detectors for different gas types, ranges, and data units
Intelligent system, convenient online zero point calibration
Multi channel passive relay contact output, programmable linkage relationship
◆ Easy installation, fixed installation bracket on the wall, can be hung up
◆ Built in 6000 alarm/fault condition records
◆ Alarm silencing and alarm reset function
The system's human-machine interface adopts a large screen color LCD display and advanced keyboard interactive operation, with a fully Chinese cultural interface and simple operation.
This machine has self checking and adaptive detection for faults, with high reliability and maintainability.
Main technical parameters:
Installation method: Safe on-site wall mounted installation
◆ Concentration units:% LEL, ppm,% VOL
Measurement accuracy: ± 5% F.S
Response time: ≤ 10s
◆ Indication method: Large screen LCD displays real-time data and system status, LED indicates alarm or fault status, sound prompts alarm and fault
Output signal: Passive contact capacity 2A/AC220V
◆ Working mode: Continuous work
◆ Environmental conditions: Temperature: -10 ℃~50 ℃ Humidity: ≤ 95% RH
◆ Working power supply: AC220V ± 10%, 50Hz ± 1%
◆ Backup power supply: Two DC12V/1.5AH rechargeable batteries connected in series
Power: ≤ 10W
◆ Detector power supply voltage: DC24V ± 25%
◆ Dimensions: 320mm × 250mm × 85mm
Connection requirements for controller and detector: ≥ RVVP 4 × 1.5 mm2
Transmission distance: ≤ 1000m
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Tested gas
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measurement range
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Optional range
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resolution
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response time
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Flammable EX
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0-100%LEL
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0-100%VOL
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1%LEL/1%vol
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≤ 15 seconds
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Carbon monoxide CO
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0-1000PPm
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0-500/2000/5000PPm
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0.1/1PPm
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≤ 15 seconds
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TVOC
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0-100PPM
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0-100PPM
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0.1PPm/1PPM
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≤ 20 seconds
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hydrogen
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0-100%LEL
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0-1000PPM
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1%LEL/1PPM
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≤ 20 seconds
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natural gas
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0-100%LEL
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0-100%LEL
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1%LEL
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≤ 15 seconds
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Oxygen O2
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0-30%VOL
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0-30%、0-100%VOL
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0.1%vol
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≤ 15 seconds
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Ozone O3
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0-10PPm
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0-20、100PPm
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0.01PPm/0.1PPM
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≤ 20 seconds
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Hydrogen sulfide H2S
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0-100PPm
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0-50、200、1000PPm
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1/0.1PPm
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≤ 15 seconds
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methane
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0-100%LEL
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0-100%VOL
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1%LEL/1%vol
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≤ 15 seconds
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Fluorine gas
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0-10PM
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0-1、10PPM
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1/0.1PPm
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≤ 20 seconds
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hydrogen chloride
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0-20PPm
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0-20/50PPm/100PPM
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0.01/0.1PPm
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≤ 20 seconds
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Nitrogen N2
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0-30%VOL
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0-30%VOL、100%VOL
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0.1%LEL/1PPM
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≤ 15 seconds
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Hydrogen H2
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0-100%LEL
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0-1000PPm
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1%LEL/0.1PPm
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≤ 20 seconds
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Chlorine gas CL2
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0-20PPm
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0-10、100PPm
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0.1PPm
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≤ 20 seconds
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Ammonia NH3
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0-100PPm
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0-50、500、1000PPm
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1/0.1PPm
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≤ 20 seconds
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nitrogen oxides
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0-20PPm
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0-50、1000PPm
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0.1/1PPm
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≤ 20 seconds
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formaldehyde
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0-20PPm
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0-50、100PPm
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1/0.1PPm
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≤ 20 seconds
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Sulfur dioxide SO2
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0-20PPm
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0-50、1000PPm
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0.1/1PPm
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≤ 20 seconds
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Nitric oxide NO
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0-250PPm
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0-500、1000PPm
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1PPm
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≤ 20 seconds
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Nitrogen dioxide NO2
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0-20PPm
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0-50、1000PPm
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0.1/1PPm
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≤ 20 seconds
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phosphine
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0-20PPm
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0-20、100PPm
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0.1PPm
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≤ 20 seconds
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acrylonitrile
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0-100PPM
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0-100PPm
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0.1/1PPm
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≤ 20 seconds
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carbon dioxide
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0-5000PPm
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0-1%/5%/10% VOL (infrared)
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1、0/01PPm
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≤ 20 seconds
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hydrogen fluoride
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0-10PPm
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0-1、10、50、100PPM
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0.01/0.1PPm
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≤ 20 seconds
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Xylene, toluene
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0-20PPm
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0-5、10、50、100PPm
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0.01/0.1PPm
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≤ 20 seconds
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Ozone O3
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0-10PPm
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0-20、100PPm
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0.1/0.01PPm
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≤ 20 seconds
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Please contact the company for unlisted gases
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