Basic Parameters
Dimensions: 460mm × 300mm × 150mm
Weight: Approximately 7kg
Working voltage: AC220V ± 10% 50Hz
Output voltage: DC24V
Display: 7-inch color touch LCD screen, resolution 800 × 480
Processor: ARM7
Sampling accuracy: 15 bit AD
Signal input: ① Analog mode: 1-32 channels of 4-20mA standard current input, supporting two-wire and three wire systems ② Digital mode: 1-255 channels of RS485 bus transmitter (analog and digital cannot be used simultaneously)
Communication interface: 1 RS232 or RS485 communication interface, standard Modbus RTU protocol or non-standard protocol, can be connected to a computer for monitoring (analog mode only) [optional]
Data storage: It can store over 3200 gas alarm and startup records, using a cyclic overlay storage method.
Alarm mode: Level 1 alarm above 90dB, Level 2 alarm above 120dB
Control output: 1 public relay output, when any one circuit alarms, the relay will close. 1-8 relay outputs [optional]
Temperature range: -10 ℃ to 50 ℃
Humidity range: 15% to 70% (RH) without condensation
Execution standard: GB16808-1997 Technical Requirements and Test Methods for Combustible Gas Alarm Controllers