Power-Up - Emerson GDU-Incus Reference Manual

Ultrasonic gas leak detector
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May 2019
3.9.2

Power-up

Upon power-up a brief functionality check will run to ensure detector functionality, this lasts no more
than five (5) seconds. Once completed, the GDU-Incus will go into normal operation using the
factory/customer defaults specified at time of order or signal any faults that may be present. (Factory
default options can be found in section
In addition the display will show the real-time ultrasonic sound level and the detector will become
responsive to RS485 commands for function setup and all relays will be energized or de-energized as
per defaults.
Note: If the GDU-Incus has been factory set for specific site requirements it is recommended to carry
out the steps outlined in section
22
4.1
and a list of faults can be found in section 4.6).
4.2
before completion of commissioning.
Reference Manual
00809-0100-3003, Rev AA

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