The gas alarm controller is a controller for gas concentration monitoring and leakage centralized alarm;its power supply is directly powered by the municipal mains grid or battery. This alarm controller receives RS485 signal and 4-20mA, and it can temporarily receive only the RS485 signal output by the new online detector manufactured by our company, if there is the demand to access the standard RS485 signal of other manufacturers, please contact our company for confirmation. A gas alarm controller can be connected to a 120-channel bus-system RS485 output gas detector and 8-channel 4-20mA output gas detectors, and more input channels can be customized.
Features:
1. The main power supply adopts AC220V 50Hz (main board working voltage is 24VDC) from the municipal mains grid, and the standby power adopts 24V battery, so, it is convenient to use.
2. The controller is easy and convenient to install.
3. There is built-in microprocessor, intelligent alarm, failure judgment.
4. There is the self-diagnosis function, which is possible to detect the failure conditions of the detector on site.
5. The controller adopts a technologically advanced digital bus protocol, and its maneuverability is superior.
6. It supports RS485 input, RS485 output and 4-20mA input, 4-20mA output.
7. Multiple units of controllers can work by forming a network, and the operating mode of master and slave machines is available.
8. Simultaneous display of the information such as multi-channel probe concentration value, unit, alarm status, working status, and so on.
9. Data storage function makes it possible to record the information such as concentration values, failure alarms, concentration alarms and so on.
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