Over the years, we have had many requests
for an analyzer system called GE 7216 V2.1 or V2.2. We used to manufacture this
product for GE. It was specifically for use as a stator leak detector on large
electric generators. In time, some of the components and technologies used in
this analyzer were discontinued and subsequently updated.
We have also noticed that the functionality
of some of these systems has been impaired by moisture ingress over the years.
On most sites, the moisture removal systems prior to the H2 detector have been
designed and installed by the original generator provider. If these fail,
moisture can enter the H2 detector and ruin it.
Even though the GE 7216 V2 is no longer
available to electric power providers, we do have a couple of options to allow
you to proceed with a solution.
Replacement detector assembly – If all of
the other components on the system are functioning properly, and an updated
detector is all that is needed, we may be able to provide a heated box assembly
with the updated detector inside. This option is not available in every case,
but may be worth inquiring about.
Replacement gas analyzer – The GE 7216 V2
product was in production quite a number of years ago. Many of the
installations are getting old or have been contaminated with water, and require
replacement instead of repair. The Models 430VN4 and 430QN4 Continuous Hydrogen
Monitor are available for this purpose.
The various components are now protected
inside a common NEMA 4 wall-mount cabinet. The H2 reading is displayed locally
on the analyzer cabinet, and is also sent to an analog 4-20mA output. As an
option, we can make this an isolated or non-isolated output. We can also
provide a hydrogen alarm with indicator light and relay contact.
The slight difference in model numbers
designates the design of moisture removal system. Some installations have a
supply in instrument air already connected to the old 7216 module. The new
430VN4 can also utilize this air supply. If there is no instrument air
available, the model 430QN4 can be used instead.
If you have a 7216 and are experiencing
age- or moisture-related problems, we can undoubtedly assist you. Contact us by
e-mail. Be sure to state your 4-digit serial number and full model number.
1-800-295-3771
websales at nova-gas dot com
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