Number of hanging channels: 1~128, any number can be selected

Communication line mode:

Simulated current loop circuit: Communication lines correspond one-to-one with acquisition channels, with a long transmission distance of up to 3-4 kilometers

485 bus: Each 485 bus can be connected to 1-32 acquisition channels, with a simple wiring method and a communication distance of no more than 1 kilometer. The maximum communication speed is 9600bps

Digital current loop bus: Each digital current loop bus can be connected to 1-8 acquisition channels, with a communication distance of 3-4 kilometers and a maximum communication speed of 2400bps

The above three communication line modes can coexist simultaneously, (note: the maximum sum of the number of 485 buses and the number of digital current loop buses is 4)

Number of relays: configured according to customer needs

system parameters

Host capacity: 128 bus detectors with 485 communication mode; Or 30 digital current loop bus detectors; Or 15 4-20mA analog detector inputs (supporting three wire and two-wire systems); Automatic diagnosis of transmitter faults

U processor: 32-bit industrial grade high-speed RISC processor, running at over 700 million times per second

LCD display: resolution 128 * 64; Single channel inspection or multi-channel inspection (with functions such as "mute", "flip page", "lock screen", "switch", and display accuracy adjustable from 0.001 to 1)

Color LED: Channel corresponds one-to-one with color LED: blue indicates fault; Green indicates normal concentration; Yellow indicates a level one alarm (low alarm); Red indicates a Level 2 alarm (high alarm)

U sound alarm: Level 2 high decibel sound alarm

Gas detection: O2、EX、CO、NH3、SO2、H2S、NO、NO2、H2、HCN、HCL、PH3、O3、CLO2、COCL2、HF、ASH3、C2H4O、SIH4、CL2 wait

Screen switching interval: adjustable from 1 second to 99 seconds

Online settings: remote zero marking function

U switch output: Each channel can be associated with a common relay (optional) and a dedicated relay (optional). When the channel alarm is triggered, both the public relay and the associated relay will act simultaneously

Data storage: It can store 512 system records and 2560 (upgradable to 50000) gas alarm records, using a cyclic overlay storage method.

Communication interface: The PC communication port can be connected to a computer, and after connection, the alarm records and parameters of the controller can be read through the computer. (Optional)

Transmission distance: The maximum distance between the 485 bus channel and the controller is 1000 meters. The maximum distance of the current loop channel is 3 kilometers.

Installation method: wall mounted

Working voltage: AC220V ± 15%, 50Hz ± 1%;

U-channel power supply: DC24V

Working temperature: -15 ℃~50 ℃

Environmental humidity: ≤ 95% RH