Basic parameters
Size： 460 mm 300 mm 150 mm
Weight: about 7 kg
Working voltage: AC220V ±10% 50 Hz
Output voltage: DC24V
Display : 7 inches color LCD touch screen, 800 x 480 resolution
Handle: ARM7
The sampling precision: 15 bit AD
Signal input:
(1) simulation approach: 1-32 standard 4-20 mA current input,
Support 2 wire and 3 wire system
(2) digital way: 1-255 road RS485 bus transmitter
(analog and digital cannot be used at the same time)
Communication interface: 1 road RS232 or RS485 communication interface,
Standard ModBus RTU protocol or non-standard, can connect the computer monitor (simulation) only (optional)
Data storage: can save more than 3200 gas alarm and boot record, covered by circle type storage.
Alarm way : first alarm more than 90 dB alarm way;
second alarm more than 120 dB
Control the output:
1 bus relay output, any way alarm when the relay and off.
1-8 road relay output (optional)
Temperature range: - 10 ℃ ~ 50 ℃
Humidity: 15% ~ 70% RH (No condensation)
Execution standard: the combustible gas alarm controller GB16808-1997 technical requirements and test methods
