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MAN0530 Issue 15 - 07/17
Searchline Excel
2104M0506
3. INSTALLATION AND OPERATION
(See section 3.3 Electrical Connections).
Contaminants
Assess the installation and its surrounds for sources of contaminants that could build up on
the unit's windows. Such contaminants could include oil mist, heavy sea spray, drilling mud,
dirty exhaust fumes, wave splash etc.
If there is a realistic possibility that such contaminants could cause a significant problem,
enter a brief description, e.g.
Drilling mud spray,
Diesel generator exhaust
Beam Obstruction/Blocks
Ideally, a clear path of at least 20cm diameter should be provided between the Transmitter
and the Receiver. Enter any obstructions which encroach into this path, e.g.
Process pipes,
Tree branches
Assess the installation and the beam path for potential sources of beam blockage. These
could include personnel walking in the beam, parking vehicles, moving machinery/plant,
growing vegetation etc.
If there is a realistic possibility that they could cause a significant problem, enter a brief
description, e.g.
Personnel in corridor,
Loading bay vehicles
Test Filter
After completing the installation procedure, enter the DISPLAY mode and test the gas
detector response with a plastic test filter. Enter the nominal value of the test filter, the unit's
displayed response and mark the Pass or Fail box.
The acceptable responses to test filters for different gas tables are detailed in section 5.1.2.
4 - 20mA Loop Integrity
Test the 4 - 20mA loop integrity by forcing the unit to output a known current and monitoring
this at the control room or with a multimeter inserted into the loop. Mark the appropriate box.
Fault/Warning Log
Check the fault/warning log. In order for the unit to complete installation satisfactorily, the
ACTIVE FAULTS log must be CLEAR. Use the Handheld Interrogator to diagnose and
remedy all ACTIVE FAULT.
Wherever possible, it is recommended to CLEAR any ACTIVE WARNINGS, since these
may lead to faults in the future.
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