Fixed gas detector controller supports up to four channels of 4β20 mA signal input, allowing seamless integration with multiple gas detectors, including combustible, toxic, and oxygen sensors. Its real-time concentration display and built-in sound and light alarms ensure that operators are instantly alerted when gas levels exceed preset thresholds.

Multi-Channel Signal Input

Multi-Gas Detection Capability
Fixed gas detector controller is used to monitor and manage signals from fixed gas detectors, providing continuous detection of hazardous gases. It is widely applied in chemical plants, pharmaceutical factories, laboratories, oil and gas facilities, warehouses, power plants, and other industrial and commercial environments.
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| Model | GD900-1C/2C/4C |
| Matched Detector | GD300 & GD700 Series |
| Installation Method | Wall-mounted |
| Dimensions | 73.7x192.5x83.7mm |
| Input Channel | 4-20mA 1 Channel, 2 Channels or 4 Channels (Optional) |
| Relays | The number of relays is determined by the number of input channels and the maximum support for driving the AC 250V 10A load. |
| Channel Display | 1 Digit |
| Concentration Display | 4 Digits, 0.001~9999 (Depending on the Sensor) |
| Unit Display | PPM, %VOL, %LEL |
| Inspection Interval | 200ms (Data Collection Time Interval) |
| Power Input | AC 100~240V 50/60Hz |
| Power Output | DC 24V, 0.25A/Channel |
| Working Temperature | -10β~50β |
| Working Humidity | β€95%RH, No Condensation |
| Product Weight | β€1.7kg |

Q1: What is a fixed gas detector controller used for?
A1: A fixed gas detector controller is used to centrally monitor and manage signals from multiple fixed gas detectors. It processes gas concentration data, triggers audible and visual alarms, and helps ensure timely response to gas leaks in industrial and commercial environments.
Q2: How many gas detectors can the controller connect to?
A2: The controller can typically connect to multiple fixed gas detectors, depending on the model and configuration. It supports single-point or multi-channel inputs, making it suitable for both small installations and large centralized gas monitoring systems.
Q3: What types of gas detectors are compatible with the controller?
Q4: The fixed gas detector controller is compatible with various gas detectors for combustible, toxic, and oxygen gases. It usually supports standard output signals such as 4β20 mA, RS485, or relay outputs for flexible system integration.
Tips:Β How does the fixed gas detector controller work?
The fixed gas detector controller operates by receiving real-time signals from connected gas detectors installed in the monitoring area. These detectors continuously measure the concentration of toxic or combustible gases and transmit the data to the controller through 4β20 mA, RS485, or other communication methods. The controller processes these signals, displays the gas concentration, and evaluates whether the reading exceeds preset alarm thresholds.
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