This user guide covers the installation, operation, maintenance, and safety requirements for the Emerson MRLDS-450 Gas Detector.
The Emerson MRLDS-450 is a gas detection instrument designed to continuously monitor ambient air for refrigerants, oxygen, and toxic or combustible gases. It features integrated audio-visual alarms and can operate as a stand-alone unit or connect to a Building Management System (BMS). The device supports various power options, including 24VAC and 19.5 to 28.5VDC, and offers configurable outputs such as relays and analog signals.
| Power options | 24VAC or 19.5 to 28.5VDC |
|---|---|
| Enclosure rating | IP66 |
| Analog Output options | 4 to 20mA, 0 to 5V, 0 to 10V, 1 to 5V, 2 to 10V |
| Relay outputs | 3× Relays |
| Communication interface | Modbus RTU RS-485 |
| Target gases | Refrigerants, Oxygen, Toxic and combustible gases |
The MRLDS-450 continuously monitors ambient air for refrigerants, oxygen, and toxic and combustible gases.
No, the instrument has not been designed to be intrinsically safe for use in areas classified as being hazardous locations.
The instrument can be powered by 24VAC or 19.5 to 28.5VDC.