JB-TB-GDB19 Gas Alarm Controller

Bring several gas-detector signals into one controller with local alarms and outputs for site response.

Fit the existing detector network
The listed analog, four-bus and two-bus interfaces help plan different field connections.
Make an alarm actionable
Adjustable setpoints, gas names, audible/visual indication and relay outputs support response at the relevant point.
Make maintenance manageable
Fault detection, online zero correction and wall mounting support routine operator checks and service.

Confirm detector signals, point count, relay actions and available installation space.

Overview

The JB-TB-GDB19 Flammable Gas Alarm Controller is a multi-point monitoring gas alarm controller developed by our company, designed to detect the concentration of target gases in ambient air. It supports integration of multiple detectors for different gas components while enabling centralized monitoring across multiple locations. The product features both split-wire and bus interfaces, accommodating various wiring configurations for detector applications.

This system employs microprocessors as control units and high-precision sensors as detection components, featuring exceptional sensitivity and rapid response capabilities. When ambient gas concentrations reach or exceed preset warning thresholds, the controller immediately triggers audiovisual alarms to prompt immediate safety measures. Simultaneously, it activates the execution control unit to operate exhaust systems or peripheral devices, effectively preventing poisoning incidents, explosions, and fires while ensuring the safety of lives and property.

Key Features

Alarm Settings & Response

Customizable Alarm Setpoints
Customizable Gas Names
Built-In Audible & Visual Alarm

Detector Inputs, Outputs & Records

4-Channel 4-20mA Interface, 1-Loop 4-Bus Interface & 1-Loop 2-Bus Interface
The product is embedded with a microprocessor and equipped with comprehensive software functions, enabling transmitter signal sampling, real-time data processing, system fault detection, power management, alarm display, and peripheral device driver functions.
Multi-channel passive relay contact output
2-Channel Switch Quantity Output
Alarm & Fault Record Storage
Optional 4G Cloud Upload

Operator Controls & Power

Customizable Device Time
LCD display with Chinese text, simple and clear
Intelligent system: Convenient online zero-point calibration
Easy installation: Simply fix the bracket on the wall and hang the controller to complete the setup.
Manual Reset & Mute
Button Operation
Password Management
Automatic Main/Backup Power Switching
OEM & ODM & OBM：

Technical Specifications

Installation method	Indoor wall-mounted type
Indication method	LCD display, audio-visual alarm
Working environment temperature	-10℃~+50℃
Working environment humidity	≤93% RH
Main power supply	AC220V ±15%,50Hz ±1%
Battery capacity	2 batteries, 12V/0.8AH each
No-load power	≤10W
Detector power supply voltage	DC24V ±10%
Backup power undervoltage alarm threshold	DC12V
External dimensions	L310mm × W200mm × H95mm
Product weight	approximately 2kg
Requirements for the connection cable between the detector and the host unit	≥RVVP4×1.5mm² (four-wire bus) ≥RVVP3×1.5mm² (three-wire bus) ≥RVVP2×1.5mm² (two-wire bus)
Communication range between detector and host	≤1000m
Upload interface	RS485 upload interface
Detector interface	This device supports four-wire, two-wire, and three-wire interfaces.
(The number of detectors to be connected depends on actual conditions.)
Alarm records	Can store up to 65,000 entries
Control output contacts	2 sets of passive switch signals; 1 set of 24V pulse signal; 1 set of AC220V pulse signal
This device supports the following instrument types	(4～20)mA, RS485, and two-bus signal point-type combustible gas detectors.

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Tell us the installation, detector and alarm requirements. Confirm detector signals, point count, relay actions and available installation space.

JB-TB-GDB19 Gas Alarm Controller