MSA Ultima OPIR-5 Safety Manual page 3

INTRODUCTION
General Description
The MSA Ultima OPIR-5 Gas Detector continuously monitors hydrocarbon gases and
provides a 4-20 mA analog signal proportional to the LEL gas concentration and optional
LEL relay output. The gas detector has Heavy Hydrocarbon (propane) version monitor
gases in the 0 to 1 LEL meter range. This safety manual applies to all versions. The
Ultima OPIR-5 Gas Detector uses a single beam source and detector to monitor gas
concentrations, improving accuracy, reducing drift and improving immunity to false
alarms. The Ultima OPIR-5 Gas Detector is regarded as a Type B field device per IEC
61508.
The safety function of the Ultima OPIR-5 Gas Detector does not include:
•
HART communication
•
RS-485 Modbus communication
Ultima OPIR-5 Open Path Gas Detector
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Safety Manual –