The alarm controller is a single and multi-channel 4-20mA/RS485 transmitter to input signals into the intelligent controllable system. The product has the characteristics of high stability, high accuracy and high intelligence, and has abundant external control ports, so that users can freely choose the type and access port of the connected transmitter, and can carry out on-site detection and alarm through simple settings.
The current version of the system has been integrated with sound and light alarm, and provides relay normally open control terminal (users can easily connect external alarms or other control devices) The system is mainly used in the need to detect flammable or various toxic gas occasions, display the numerical index of the gas to be tested, when the index of a certain gas to be tested on the site exceeds or is lower than the set standard, the system will automatically carry out a series of alarm actions, such as alarm, exhaust, tripping, etc. (according to the user's different settings).
1. Highlight the display of super large digital tube
2. Channel indicator
3. Display all detected gas concentration values and units
4. Two-level alarm, which can be set freely by the user
5. Up to 6 unwanted switches
6. Standard RS485 upload interface, which can upload DCS, PLC system and computer host
7. Compatible with two-wire and three-wire 4-20mA equipment
8. Visualize and listen to alarm signals
Detection principle:The system provides a 24V standard DC Voltage to the external transmitter, collects the input signal of the standard 4-20mA transmitter, and analyzes and processes it to complete the digital display and alarm operation.
Suitable for:The system supports the input signals of each standard transmitter. Such as gas transmitters: carbon monoxide, hydrogen sulfide, hydrogen, sulfur dioxide, ammonia, oxygen, chlorine, combustible gas and other gas transmitters.
It can be used in petroleum exploration and production, oil and gas transportation, oil refining, metallurgy, power plants, chemical industry, oil depots, liquefied gas stations, mines, tunnels, tunnels, underground pipelines and other places that need fire prevention, explosion prevention and poisoning prevention for gas safety detection and alarm.