Gas alarms are also called gas leak detection and alarm instruments, which are used to detect toxic, harmful, flammable and explosive gases in the air in a home or industrial environment. When the concentration of the above gas in a space reaches the critical point of a dangerous or explosive state, the alarm will sound to remind people to take corresponding measures such as water spraying, exhaust, power off, and switch off to prevent The emergence of dangers such as explosion, fire, poisoning, etc., to ensure the safety of people's lives and ensure the normal progress of production and life, and reduce the loss of economic property
This type of regional gas pressure monitoring alarm is suitable for monitoring the gas supply pressure of hospital floor, nurse station, operating room, ICU or laboratory centralized gas supply, special gas cylinder, bus bar, gas valve box, etc The 0.8-inch digital tube displays the pressure of the monitored gas in real time.
Power supply voltage: dc9v ± 5%
·Power supply voltage of power adapter: AC100V ~ 240VAC
·Power consumption: 2W (1 gas), 3W (2 gas), 4W (3 gas), 5W (4 gas), 6W (5 gas), 7W (6 gas), 8W (7 gas)
·Default pressure measuring range: - 0.1MPa ~ 1.0MPa, customized high pressure pressure pressure measuring range 0mpa ~ 25MPa
·Air pressure monitoring points: 1-7 channels
·Led size: 0.8 "
·Default air pressure unit: MPa
·To prevent damage due to positive and negative sensor connections
·Support RS-485 remote communication,
·Support switch output of each air pressure state (instead of electric contact pressure gauge)
·Dc1-5v analog output supporting each air pressure value (corresponding to - 0.1mpa-1.0mpa)
·Switch output supporting machine state
·Support infrared remote control mute within 5 meters
·Support sensor fault detection
·Support sound and light alarm
·Support buzzer mute
·All parameters can be debugged on site
·It can be connected to the general alarm box to realize the real-time monitoring of the whole gas pipeline and provide the basis for digital management
·0.8 inch digital tube display, pressure value more intuitive, provide specific numerical basis for maintenance
·The sensor can be placed in the box or away from the box (effective distance of 1000m) to facilitate wiring and maintenance
As shown in the above figure, there are "gas identification", corresponding "pressure value", corresponding "status indicator", "power indicator", "mute indicator", "test button" and "mute button" on the panel.
Click "test button", all indicator lights and nixie tubes of the system will flash and start self-test.
All indicator lights and nixie tubes will be regarded as normal, and they will return to normal working state after 6 seconds.
Click the "mute button" and the "mute indicator" will flash to alert the operator that the system will enter the silent operation mode. At this time, if there is abnormal gas pressure, only the overrun indicator will flash, and there will be no alarm sound. If the pressure does not return to normal working state within half an hour under the silent state, the equipment will send out sound and light alarm again.
Click the "mute button" again, and the "mute indicator" will go out. If there is abnormal gas pressure, the overrun indicator will flash and the buzzer will give an alarm.
"Mute button" can be realized not only through the button, but also through the optional "infrared remote control".
Generally, the digital tube displays the specific value of gas pressure. When the nixie tube displays "---", it indicates that the sensor connection is abnormal. Please check whether the connecting wires of each node are connected normally, or replace the faulty sensor.
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