Gas detector/gas alarm controller host

Gas detector/gas alarm controller hostDetails

1. 3.5-inch high-definition color screen display, Chinese and English operation interface, default Chinese interface, easy to understand user operation, switchable between Chinese and English.

2. Can connect various gas detectors, temperature and humidity transmitters, pressure transmitters, wind speed transmitters, dust detectors and other 4-20mA signals, with units available: PPM, LEL%, Vol%, mg/m3, milligrams per cubic meter, PPHM, ℃, etc RH%、Pa、 Kilogram PSI、 Meter per second.

3. At the same time as 4-20mA input, RS485 input and RS485 output (standard MODBUS protocol) can be used. Optional: 8-channel 4-20mA output, free upper computer monitoring software, RS485/RS232 converter, USB-RS232 connection cable (required for computers without serial ports).

4. Modular structure design, with a standard channel of 1 (up to 32) 4-20mA input signal and the ability to connect 255 RS485 input signals. Multiple channel input signals can be customized, and controllers can communicate with each other.

5. The gas alarm controller has data recording function, with a standard capacity of 100000 pieces, and larger capacities can be customized. The storage time interval can be set arbitrarily, recording time, concentration values, alarm information, etc. It can be set to record real-time concentration or only alarm information. The default setting is to record only alarm information. Supports SD card storage or USB storage, supports local viewing of all records, selective viewing of records, and deletion of records.

6. Three display modes can be switched: displaying 6-channel concentration on each screen, large font cyclic display of single channel concentration, real-time curve, automatic or manual cycling between channels can be switched, whether to display the maximum value, minimum value, gas name, and view historical curve graphs.

7. The gas alarm controller has a computer monitoring function, which can be connected to a computer to continuously monitor real-time concentration 24 hours a day through the upper computer software. It can automatically store data on the computer, trigger computer alarms (with speakers), or read the records stored in a certain probe or all probes through the upper computer software for data analysis. It can display the maximum value, minimum value, average value, historical curve, real-time curve and other functions, and can export or print data.

8. The remote transmission function of the gas alarm controller allows the controller to upload the real-time concentration of the field probe to the monitoring center, the environmental bureau and other monitoring equipment through wired (within 2000 meters) or optional: network transmission or wireless transmission function (2 kilometers, 5 kilometers, unlimited distance optional), and upload the data to the monitoring center, the environmental bureau and other monitoring equipment through 2-core data line (wired transmission), local area network, Internet or wireless transmission, and then display, store and analyze the data through the upper computer software, or use the communication protocol to customize the reading of data.

Gas detector/gas alarm controller hostTechnical Indicators:

Signal input: 1-32 channels, 4-20mA, with RS485 input, capable of connecting 255 probes

Output signal: RS485 (standard MODBUS protocol), 4-20mA (4-channel, 8-channel optional)

Display range: Number 0 to 99999

Resolution: 1, 0.1, 0.01, 0.001 optional

Display accuracy: ± 0.1% FS

Display mode: high-definition color screen, six channel simultaneous display or large font single channel loop display, automatic or manual flipping loop display for more than six channels

Control circuit: The standard is 4 channels, with 1 common output, and optional 8, 12, or 16 control outputs

Alarm selection: Sound and light alarm, three-level alarm, each circuit can be individually set with high and low limit alarm values

Output control: The standard is 4 sets of relay contact outputs (normally open/normally closed) with a contact capacity of 3A, 32VDC or 3A, 220VAC, and a set of common alarm outputs with a contact capacity of 12A, 32VDC or 7A, 240VAC,

Automatic detection: line break/short circuit detection, various states of detectors, functional detection, etc

Working temperature: -40 ℃~+70 ℃

Relative humidity: 0-95% RH, used in non condensing environments, waterproof against splashes and short-term rain, can be customized for outdoor * moisture-proof and rainproof types.

Power supply: 220VAC/50Hz or 24VDC, 2A, 24VDC, 5A, 24VDC, 10A optional, choose according to the number of probes

Maximum power consumption: 2.5W/channel

Backup power supply: DC24V 5Ah (optional)

Size: 250 X 170 X 70mm, wall mounted installation