MGS-250 Leak Detection System
Safety Gas Detection for CFC, HFC, HCFC and HFO Refrigerants
Bacharach’s MGS-250 Infrared Gas Detector is a cost-effective solution for compliance with refrigeration safety codes (ASHRAE 15, CSA-B52) and emissions reduction standards (F-Gas, CARB).
- Long-life, proprietary infrared (NDIR) sensor provides 5-7 years of maintenance-free service while detecting the presence of a target gas down to 20 ppm Minimum Detection Level (MDL)
- Sensor is not prone to false alarms caused by cross-interference from other gases or sudden changes in temperature or humidity
- 4-digit LED display shows real-time concentration readings and makes configuration and self-diagnostics intuitive
- Configurable analog output (4-20mA, 0-5V, 0-10V, 1-5V or 2-10V) and Modbus communications for integration with Bacharach’s MGS-408 controller or third-party BMS / BAS control systems
- User-configurable relay (alarm) may be used to activate external beacons / sounders, ventilation or other countermeasures
- Integrated audible / visual alarms for refrigeration safety compliance – no additional hardware
Product Information
Bacharach’s MGS-250 Infrared Refrigerant Gas Detector is the leader in performance and flexibility. It can be configured as either a broadband sensor used for gross leak detection, or as a gas-specific version that’s pre-calibrated and characterized for precision response to individual refrigerants. It meets ASHRAE 15, EN 378, and CARB RMP compliance requirements. The MGS-250 is the economical solution for detecting refrigerants without the limitations posed by solid-state sensor technologies.
Advanced infrared sensing technology makes the MGS-250 immune to cross sensitivities from combustible and toxic gases, as well as changes in temperature and humidity. The infrared sensor provides low-level leak detection and delivers up to 5 to 7 years of virtually maintenance-free operation. The MGS-250 has an alpha-numeric LED display, status indicator, on-board relay, and alarm to alert personnel when levels have exceeded the preset limit.
Datasheets
Product Specifications
| Sensor Channels: | 1 |
| Measuring Range: | 0 to 3,500 ppm |
| Sensitivity / Minimum Detection Limit: | 10 ppm |
| Accuracy: | +25% (Broadband Sensors) +5% (Gas-specific Sensors) |
| Resolution: | 1 ppm |
| Enclosure Rating: | General Purpose |
| User Interface: | 4-digit, 7-segment red/green LEDs; configuration push buttongs |
| Power: | 24 VDC +20% or 24 VAC +20%, 2.5W |
| Analog Communications: | 4 to 20 mA, 0 to 5 V, 0 to 10 V, 1 to 5 V, 2 to 10 V |
| Digital Communications: | Modbus RTU via RS 485 |
| Operating Voltage: | 24 VDC or 24 VAC |
| Relay Rating: | 1 alarm relay, SPDT |
| Wiring: | 1 A @ 24 VDC, 0.25 A @ 240 VAC, resistive load |
| Alarm: | Integrated Audible / Visual Alarm |
| Ambient Temperature: | -22 to 104°F (-30 to 40°C) |
| Humidity: | 5 to 90 %RH, non condensing |
| Altitude: | 0 to 6,560 ft (2,000 m) |
| Status Indicator: | 4-digit, 7-segment red/green LEDs |
| Buzzer Volume: | 80 dB @ 10 cm |
| Product Dimensions (L×W×H): | 4.0” × 5.5” × 1.5” (100 × 140 × 40 mm) |
| Product Weight: | 6.3 oz (180 g) |
| Sensor Type: | NDIR |
| Expected Sensor Service Life: | 5 Years |
| Approvals: | CE, UL, CSA, IEC, EN 61010-1 |
| Warranty: | 1 Year |
| Country of Origin: | United States |
Accessories and Parts
Splash / Protective Shield (for use in spray down areas)
MGS-250 IR, Replacement Mounting Base
Supported Gases
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