SAFETY MANUAL Owner manual

1. 2 95-86653
Common Misuse Scenarios
• Do not install the OPECL on unstable or vibration
prone structures; a 3 meter maximum height is
recommend when using a vertical post.
• DonotinstalltheOPECLbelowtheheightoftypical
human activity unless absolutely necessary in order
to prevent nuisance beam block faults.
• Do not install an OPECL receiver where multiple
transmitters are in the line of sight - this is a common
concern for pipeline system installations.
NOTE
Theabovecommonmisusescenarioswillcause
the OPECL to annunciate a fault if the condition is
severe enough to compromise the safety function.
START-UP AND COMMISSIONING
Commissioning Personnel
The Safety Certified OPECL gas detector can be
commissioned by any qualified person with knowledge
of gas detection instruments and the configuration
device being used. Refer to the Start-Up, Alignment
and Calibration sections provided in the OPECL
instruction manual.
Conguration
Digital communication with the Open Path Eclipse is
necessary to monitor internal status and to modify the
factory settings. Appendix A of the OPECL instruction
manual provides guidance on establishing HART
communication, and describes the communication
menu structure when using the Open Path Eclipse with
theHARTHandheldCommunicator.
NOTE
Prior to device conguration (setting alarm
thresholds, latch/non-latch function, etc.) all
alarm outputs must be bypassed. The device is
not safety certied during conguration change
activities.
Relay Conguration Requirements
OnlytheOPECLgasdetector’sHighAlarmandFault
relay outputs may be used as part of a Safety Certified
system. The end user must provide transient and
current limiting on the output contacts of the relays.
The maximum relay contact output must be limited to
5 amperes at 30 Vdc. The load must be a resistive
load. The user must protect against transients by using
standard protection methods such as proper grounding
of shielded wire and separation of relay load wires from
other lines carrying rapidly switched high current (e.g.
large motor power supply lines).
Conguration Protection
Upon completion of installation and commissioning,
it is recommended to password-protect the OPECL
programmingand setupfunctionusingaHART Field
Communicator or AMS program to prevent accidental
or deliberate change of detector configuration data
during normal operation.
OPERATION, MAINTENANCE, INSPECTION AND
PROOF TESTING
All normal installation, start-up, and field calibration
recommendations as documented in the STARTUP
section of the OPECL instruction manual are applicable
to the Safety Certified OPECL gas detector.
Safety-Certified OPECL gas detectors require additional
Proof testing to be performed in all cases.
Personnel performing Proof Test procedures shall be
competent to perform the task. All proof test results
must be recorded and analyzed. Any corrective actions
taken must be documented in the event that an error is
found in the safety functionality. The Proof tests must be
performed at a frequency as shown in Table 1.
WARNING
Failure to perform the specied testing and
inspectionmaylowerorvoidtheSILratingforthe
product or system.
OPECL Proof Test Name Commissioning Frequency per Year
Gas Response Proof Test Ye s 1
Output Response Proof Test Ye s 1
Table 1—Frequency for Performing Proof Tests