MIC-1000 Gas Alarm Controller
Centralized Monitoring for Industrial Gas Detection Systems
Wall-mounted multi-channel gas alarm controller
System Capability Supports 4-20 mA and RS485 detector networks, multi-level alarms, relay control, data logging, and optional wired or wireless remote communication.
Product Overview
The MIC-1000 is designed for centralized monitoring and alarm management in fixed gas detection systems. It receives signals from gas detectors and other industrial transmitters, displays real-time measurements, activates audible and visual alarms, controls relay outputs, and records operating data for traceable system management.
- Standard 8-channel 4-20 mA input configuration
- RS485 network support for up to 255 addressable nodes
- Three-level audible and visual alarms with independent channel setpoints
- MODBUS-RTU communication and optional Ethernet, fiber, 4G, 5G, or LoRa modules
Technical Specifications
| Parameter | Specification |
|---|
| Signal Input | RS485 or 4-20 mA; specify the required configuration when ordering. Other input types are available on request. |
| Output Signal | RS485 with standard MODBUS-RTU protocol |
| Display Range | 0 to 99,999 |
| Selectable Resolution | 1, 0.1, 0.01, or 0.001 |
| Display Accuracy | ±0.1% FS |
| Display | 3.5-inch LCD |
| Alarm Method | Audible and visual alarms; three alarm levels with independent setpoints for each channel |
| Control Outputs | Standard 4+1 relay contact outputs, NO/NC; 10 A at 277 VAC or 12 A at 125 VDC |
| Automatic Diagnostics | Open-circuit and short-circuit line detection, detector status monitoring, and functional testing |
| Operating Conditions | -20 to +55°C; ≤95% RH, non-condensing |
| Power Supply | 220 VAC with built-in 220 VAC to 24 VDC switching power supply |
| Maximum Power | 2.5 W per channel |
| Backup Power | 12 V battery, optional |
| Dimensions | 400 × 300 × 100 mm |
| Installation | Wall-mounted |
The controller can also receive 4-20 mA signals from temperature and humidity transmitters, pressure transmitters, air velocity transmitters, dust monitors, and other compatible industrial instruments.
Measurement Units
ppm, %Vol, %LEL, pphm, ppb, mg/m³, μmol/mol, and μg/m³
Optional Modules and Accessories
- 4-20 mA analog output module
- Ethernet, fiber-optic, 4G, 5G, and LoRa communication modules
- PC monitoring software for centralized data display and management
- RS485 to RS232 converter and USB to RS232 cable
- Built-in printer and 12 V backup battery
Applicable Standard GB 16808-2008, Combustible Gas Alarm Control Units.
Functions and System Advantages
Monitoring and Input Management
- Chinese and English switchable interface on a 3.5-inch LCD.
- Simultaneous 4-20 mA and RS485 inputs are supported in applicable configurations.
- Modular design supports controller cascading and expansion of input and output channels.
- Channel management functions include channel enable or disable and channel parameter editing.
Display and Data Management
- Three display modes: five-channel overview, large-font single-channel cycling, and real-time trend curves.
- Automatic or manual channel cycling with optional maximum value, minimum value, and gas-name display.
- Standard storage capacity of 100,000 records with configurable logging intervals.
- Records time, concentration, and alarm information; supports real-time logging or alarm-only logging.
- SD card storage with local record viewing, filtered review, and deletion.
- PC software supports 24-hour monitoring, automatic storage, alarm notification, maximum, minimum, and average values, historical and real-time trends, export, and printing.
Alarm and Control
- Multi-level alarm setpoints can be enabled or disabled independently.
- Different alarm outputs can use different tones, volumes, and frequencies.
- Alarm types include concentration alarms and fault alarms; modes include low, high, and range alarms.
- Programmable relay outputs support fans, solenoid valves, and other interlocked equipment.
- Remote zero calibration, span calibration, factory reset, and alarm setting are supported.
Remote Communication and Maintenance
- Wired upload of real-time field data, with optional Ethernet or wireless transmission.
- Optional wireless ranges include 2 km, 5 km, or unrestricted-distance cellular and Internet communication.
- Data can be sent to a control room, monitoring center, or other connected systems through LAN, Internet, or wireless networks.
- Supports remote firmware upgrades and remote detector operation.
- Intrinsically safe circuit design with resistance to vibration, static electricity, and radiation.
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