Operation And Maintenance - MSA Ultima OPIR-5 Safety Manual

OPERATION AND MAINTENANCE

For complete operation, configuration, and maintenance information for the Ultima OPIR-
5 Gas Detector, refer to the product instruction manual.
Before applying power to the system for the first time, all wiring connections should be
checked for correctness and the Receivers' housing cover should be securely fastened.
Upon initial power-up, the Receiver will enter a two-minute set-up mode; the display will
indicate "SU".
The Ultima OPIR-5 Gas Detector contains a heater circuit to remove condensation from
the windows. The unit should be allowed to stabilize for approximately two hours before
continuing with the setup mode.
The Ultima OPIR-5 Gas Detector is an intelligent sensor that performs internal
diagnostics on critical faults every second and responds with 0 mA for an internal fault
and 1.5 mA for a beam block fault (see Table 2). User selectable delays and current
levels allow for system flexibility.
WARNING: The Ultima OPIR-5 Gas Detector does not respond to gas leaks upon
complete IR beam blockage. Interruptions of the IR beam will delay the response time of
this unit, and thus lead to a potentially unsafe situation. The optical path should be
checked for blockage and the windows cleaned periodically.
The Ultima OPIR-5 Gas Detector performs accurately and reliably for propane gas
detection applications in extreme industrial environments. Under the following two
situations: 1) a rapid and massive liquid propane release and 2) a rapid and massive
buildup of a high concentration propane gas cloud, the Ultima OPIR-5 Gas Detector
recognizes both situations and forces the analog output, and optional relay output, to
over-range.
Refer to the Troubleshooting Section in the Ultima OPIR-5 Gas Detector instruction
manual in the event of a fault condition. In addition, spare parts should be on-hand to
maintain the four hour repair time. Refer to the Spare Parts Section of the instruction
manual for more information.
After the Ultima OPIR-5 Gas Detector has been initially aligned and calibrated, very little
must be done to maintain the unit. Although calibration is not required, response should
be tested from time to time using the Test Gas Filters designed for the detectors. MSA
recommends that a maintenance schedule be established and followed. If the detector is
operated under dusty or dirty conditions, the windows should be cleaned periodically.
This is accomplished by gently wiping them with a soft, clean cloth, which has had a
commercial window cleaning solution applied. The cleaning should be done in test mode
to prevent false alarms.
Ultima OPIR-5 Open Path Gas Detector
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Safety Manual –