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Henan Otywell Electronic Technology Co., Ltd.

GDB11 Gas Alarm Controller

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GDB11 Gas Alarm Controller

GDB11 Gas Alarm Controller

Bring bus-connected gas detectors, local alarms and control outputs together at one monitoring point.

  • See and act on a detector alarm

    The controller displays detector status, supports adjustable alarm thresholds and provides local sound and light warnings.

  • Connect the response equipment

    Listed bus connections and outputs let the project team plan the detector network and external alarm or control linkage.

  • Review and maintain settings

    Alarm and fault records, password management and manual mute/reset support investigation and controlled operation.

Confirm detector compatibility, bus wiring, output requirements and optional remote upload.

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Overview

GDB11 Combustible gas alarm controller is a 485 signal output controller developed by our company, which has the characteristics of good stability, high accuracy and intelligent parameter setting. The external control port is rich, the user can freely choose the type of detector and access port, and can carry out on-site monitoring and alarm through simple setting and wiring.

The controller is mainly used in the occasion of monitoring combustible gas, showing the numerical indicator of the gas to be tested. When the indicator of a certain gas to be tested on site does not meet the set standard, the system will automatically carry out a series of alarm actions, such as alarm, exhaust, trip, etc. (according to different Settings of the user).

Key Features

Alarm Settings & Response

  • Customizable Alarm Setpoints
  • High/low alarm threshold configuration
  • Built-in audible & visual alarm lamp

Detector Inputs, Outputs & Records

  • 1-Loop 4-Bus Interface, Compatible with 3085 & 3082 4-Bus Gas Detectors
  • 2 groups of pulse relay output
  • Switch quantity output
  • 2-Channel Active Output (220V Pulse & 24V Pulse)
  • Alarm & Fault Record Storage
  • Optional RS485 Output
  • Optional 4G Cloud Upload

Operator Controls & Power

  • Customizable Device Time
  • Digital display & English keypad operation
  • Password management function
  • Manual reset & mute function
  • Time display & management function
  • Automatic Main/Backup Power Switching
  • OEM & ODM & OBM：

Technical Specifications

Mounting method  wall-mounted 
Indication mode  digital display, audible & visual alarm 
Ambient temperature  -10℃~+50℃; Relative 
humidity 20~93%RH, non-condensing 
Main power supply  AC220V±15%,50Hz±1% (3A main fuse) 
Backup power  single DC12V/1.3AH rechargeable battery (3A backup fuse) No-load power ≤20W 
Detector supply voltage  DC24V±10% 
Max communication distance between detector and controller  ≤1000m 
Local channel quantity Channel, 1 loop with 4-bus interface, compatible with RS485-output gas detectors 
Alarm records  ≥1000 records 
Alarm output  4 channels 
Product dimension  L310×W200×H95 mm 
Cable requirements for connecting the detector to the controller  ≥RVVP4×1.5mm² 
Audible & visual alarm locks until manual reset after alarm trigger Alarm sound manually muteable

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Tell us the installation, detector and alarm requirements. Confirm detector compatibility, bus wiring, output requirements and optional remote upload.

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