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Section 4
Maintenance and Troubleshooting
®
Brooks
VDM300 Vapor Delivery Module
4-3 Troubleshooting the VDM300
4-2
All manuals and user guides at all-guides.com
The VDM300 is not intended to be serviceable by the customer. ln some
instances, however, Brooks Field Service personnel or customers trained
on the operation of the VDM can do basic diagnostic investigation and
repair. This is limited to the power entry module, external cables, fittings,
and software upgrades. ln all other situations the unit will have to be
removed from service and replaced.
There are two forms of troubleshooting the VDM300: general
troubleshooting and using the BEST as a diagnostic tool. General
troubleshooting is essentially making sure that the VDM300 is installed
properly and that all required operating conditions are met. Section 4-4
explains some general troubleshooting guidelines for the VDM300 in
greater detail. The VDM300 also has been designed to monitor its internal
operating conditions and go into an alarm or fault condition if any of these
conditions are out of specification. When the red "DEVICE FAULT" LED is
on, the VDM300 has detected an internal problem. By using the GUl, a
field service person or a trained user can access this information. See
Section 3-4 for information about using the BEST and Section 4-5 for
details about the troubleshooting information that can be accessed by the
BEST.
Installation and Operation Manual
X-VAP-VDM300-eng
Part Number: 541B210AAG
August, 2017
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