MGS-402 Leak Detection System
2-Channel Controller for Refrigerant, Toxic and Combustible Gas Detection
Bacharach’s MGS-402 Controller centralizes the status of two gas detectors to enable compliance with refrigeration safety codes (ASHRAE 15, EN 378, CSA-B52).
- Designed for operation in refrigeration applications with an IP66-rated enclosure to protect from dust and water ingress (suitable for use in cold rooms and freezers down to -40°C)
- MGS-410 Gas Detectors may be installed in hard-to-reach / elevated locations (distances up to 305m from the controller)
- Centralized power and communications for up-to two connected MGS-410 gas detectors
- Tri-color LED indicators provide “at-a-glance” system / alarm status
- Two configurable Analog outputs (4-20mA, 0-5V, 0-10V, 1-5V or 2-10V) and Modbus communications (slave) for integration with Bacharach’s MGS-408 controller or third-party BMS / BAS control systems
- Three user-configurable relays (fault, low and high alarm) may be used to activate external beacons / sounders, ventilation or other countermeasures
- Integrated audible / visual alarms with push button silence for refrigeration safety compliance – no additional hardware
Product Information
Bacharach’s MGS-402 Gas Detection Controller centralizes the status of up to two gas detectors, provides a complete package for your safety compliance application. On the front panel of the MGS-402 a bank of LEDs corresponds to each connected gas detector; showing power, alarm status and fault indicators. The MGS-402 can provide the power requirements for to up to two gas detectors, which can be daisy-chained with Modbus communication to each gas detector; simplifying and reducing the cost of installation.
The MGS-402 can be integrated with Bacharach’s MGS-410 gas detector; allowing for a flexible gas detection system design which can utilize the benefits of multiple gas detector types as required in different locations (machinery rooms, cold storage rooms, walk-in freezers and food preparation areas).
Product Specifications
| Sensors: | 2 |
| Enclosure Rating: | IP66 |
| User Interface: | Configuration through DIP switches |
| Power: | 100 – 240 VAC, 50/60 Hz, 20 W (max.) |
| Analog Communications: | 4 to 20 mA, 1 to 5 V, 2 to 10 V |
| Digital Communications: | Modbus RTU via RS 485 |
| Operating Voltage: | 100 to 240 VAC, 50/60 Hz |
| Relay Rating: | 2 Alarm relays, 1 Fault relay SPDT |
| Wiring: | 10 A @ 240VAC |
| Alarm: | Integrated Audible / Visual Alarm |
| Ambient Temperature: | -40 to 122°F (-40 to +50°C) |
| Humidity: | 5 to 90% RH, non-condensing |
| Altitude: | 0 to 6,560 ft (2,000 m) |
| Status Indicator: | Tri-color LED (green, red, orange) – Controller status, channel status |
| Buzzer Volume: | 80 dB @ 10 cm |
| Product Dimensions (L×W×H): | 6.5” × 6.5” × 3.4” (165 × 165 × 87 mm) |
| Product Weight: | 1 lb, 11.07 oz (758 g) |
| Approvals: | CE, UL / CSA / IEC EN 61010-1 |
| Warranty: | 1 Year |
| Country of Origin: | United States |
Accessories and Parts
External Beacon / Sounder (Red Lens)
External Beacon / Sounder (Green Lens)
External Beacon / Sounder (Blue Lens)
External Beacon / Sounder (Yellow Lens)
Contact Us
To speak to a member of our friendly customer service team about any of our products or services, please do not hesitate to contact us on the details below:
Telephone: (+44) 1527 522 299