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Installation
Field service commissioning call checklist
In many U.S. installations, a VEGA field service engineer commissions the
gauge. To reduce service time and costs, use this checklist to ensure the
gauge is ready for commission before the engineer arrives:
Mount the source holder and detector per the VEGA certified drawings.
Allow access for future maintenance.
Make all wiring connections per the certified drawings and the section
Wiring the equipment page 33. Tie in the wiring from the field
transmitter analog output to the distributed control system (DCS)/
programmable logic controller (PLC)/chart recorder.
Ensure that the AC power to the transmitter is a regulated transient-free
power source. UPS type power is the best.
If using DC power, verify that the ripple is < 100 mV, 1/1,000 Hz at
15 W.
Note: The equipment warranty is void if there is damage to the gauge
Have process ready for calibration.
When possible, it is best to have process available near the low and
high end of the measurement span.
When possible, it is best to be able to completely fill and empty the
vessel at the high and low levels for the initial calibration procedure,
and at 10% increments in between for the linearization procedure.
Do not remove the lock or shield on the source holder. Notify VEGA
Field Service if there is damage to the source holder.
40
due to incorrect wiring not checked by the VEGA field service
engineer.
LFXG-H Installation and Operation Guide
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