Highlight:
Combustible Gas Detector Controller
, Wall Mounted Gas Detector Controller
, ModBus RTU Gas Alarm Controller
Main Body Material: |
Cold-rolled Steel Plate |
Installation Method: |
Wall-mounted |
Overall Dimensions: |
400mm X285mm X100mm (15.75in×11.22in×3.94in) |
Weight: |
Approximately 9kg (including The Backup Power Supply) |
Accessories: |
Metal Installation Backplate And Supporting Bolts |
Operating Voltage: |
AC220-2A 50Hz |
Power Consumption: |
≤ 10W (excluding The Supporting Equipment) |
Signal Transmission Distance: |
≤1500m（4921.26ft）（2.5mm2 ） |
Wall-Mounted Bus-Type Combustible Gas Alarm Controller Visualization ModBus RTU
1.Product Overview
The M201 combustible gas alarm system is an industrial - use gas safety detection instrument composed of a gas detector and a gas alarm controller. The controller fully complies with the requirements of GB16808 - 2008 Combustible Gas Alarm Controller. It is used to detect the concentration of the gas to be measured in the ambient air and can be connected to various types of gas detectors, actuators, and receivers (hereinafter referred to as "addressing units"). The detector can be installed in indoor and outdoor hazardous locations where the measured gas may leak; the controller is installed in a non - explosive area (inside the control room).
When the measured gas or vapor volatilizes in the air, the controller will display the gas concentration in the air. When the concentration of the measured gas reaches or exceeds the set value, the controller and the detector will emit audible and visual alarm signals and output control signals to activate the corresponding external control devices, thus avoiding major accidents.
The M201 controller adopts bus - based communication, based on the RS485 bus structure and the PowerBus bus structure, and complies with the ModBus RTU protocol. It uses a microprocessor as the control unit and a high - precision sensor as the detection transmitter, featuring high sensitivity and fast response. The human - machine interface of this system adopts liquid - crystal display and keyboard - interactive operation, with a Chinese - language interface for simple operation, and it can display the on - site gas concentration value in real - time. The unique software anti - interference technology and soft detection method for machine faults of this device enable it to operate efficiently and stably.
2.Product Features
(1) Four-wire bus transmission (A, B, -24V, +24V)
(2) Two-wire bus transmission (PowerBus)
(3) Real-time concentration display
(4) Visual graphical interface display
(5) Two alarm modes: low limit alarm and high limit alarm
(6) Automatic fault monitoring
(7) Power conversion function
(8) Field programmable linkage output
(9) Historical record storage
(10) System expandability
3.Main Technical Data
| Signal transmission |
RS485,PowerBus |
| Capacity |
The controller has four loops, and the maximum capacity of each loop is 80 (detectors) |
| Control output |
8 groups of programmable and 2 groups of manual relay outputs |
| Contact capacity |
3A/DC24V or 1A/AC220V |
| Visual indication |
4.3-inch liquid crystal display screen, color LED lights |
| Sound pressure level (A-weighted) |
65~110dB@1m |
| Indication error |
±5%FS |
| Operating temperature |
0℃~+40℃ |
| Humidity range |
0~93%RH(without condensation) |
| Pressure range |
86kPa~106kPa |
4.Indicator Lights
| Name of the indicator light |
Color |
Function |
| Normal |
green |
When the system is operating normally, this indicator light is on. |
| Mute |
red |
When the fault sound and alarm sound are eliminated, this indicator light is on. |
| Total fault |
yellow |
When there is a fault between the controller and the detector, this indicator light is on. |
| Total alarm |
red |
When the detector gives an alarm, this indicator light is on. |
| Main power supply normal |
green |
When the main power supply of the controller is normal, this indicator light is on. |
| Main power supply fault |
yellow |
When there is an under-voltage of AC220V, this indicator light is on. |
| Backup power supply normal |
green |
When the backup power supply of the controller is normal, this indicator light is on. |
| Backup power supply fault |
yellow |
When there is a fault with the backup power supply (such as open circuit, under-voltage, etc.), this indicator light is on. |
| Backup power supply charging |
green |
When the backup power supply is charging, this indicator light is on and goes off when it is fully charged. |
| Charging fault |
yellow |
When there is a charging fault of the backup power supply, this indicator light is on. |
| Linkage 1 |
red |
When the No. 1 internal linkage module is activated, this indicator light is on. |
| Linkage 2 |
red |
When the No. 2 internal linkage module is activated, this indicator light is on. |
