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PENBERTHY MULTIVIEW
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
6 TROUBLESHOOTING
Problem
Loss of indication. Even though
there is liquid in the vessel and
the float is moving freely, the
indicator fails to register a level.
Float is stationary when level
changes occur.
* All magnets will lose strength over time. The rate of loss is normally very gradual and will vary with the
application. Higher operating temperatures and excessive vibration can increase the rate of loss.
7 TELEPHONE ASSISTANCE
If you are having difficulty with your top
mount magnetic gage, notify your local
Penberthy distributor, or call the factory direct
(956) 430-2500 and ask for an applications
engineer.
To help us to assist you more effectively, please
have as much of the following information as
possible when you call:
• Standpipe part number
• Float part number
• Name of the company from whom you
purchased the meter
• Invoice number and date
• Process material
• Specific gravity
• Operating temperature
• Operating pressure
• Brief description of the problem
TOP MOUNT MAGNETIC GAGE
TM
Cause
1. Loss of magnetic strength.*
2. If it is a follower style indicator you
may be experiencing volatile level
changes or high levels of vibration.
1. There is a source of ferromagnetic
material within 8" of the centerline
of the standpipe.
2. If a stilling well is being used to
protect the float and float guide
tube, deposits in the process liquid
may have become lodged between
the float and stilling well.
If attempts to solve your problem fail, you may
be requested to return your instrument to the
factory for intensive testing. You must obtain
a return authorization (R. A.) number from
Emerson prior to returning your unit. Failure
to do so will result in the unit being returned
to you, without being tested, freight collect.
To obtain a R. A. number gather the following
additional information:
• Reason for return
• Person to contact at your company
• 'Ship-to' address
We recommend that you return the entire unit
for testing. There will be a minimum charge
applied for evaluation of non-warranty units.
You will be contacted before we repair the unit
if there will be any additional charges in excess
of the minimum. If you return a unit that is
covered by the warranty, but is not defective,
the minimum charge will apply.
Solution
1. Return the magnet to the factory
to be remagnetized.
Replace the magnet.
2. Change to a flag style indicator.
Due to its design it will not
decouple from the float.
1. Remove the source of the
ferromagnetic material or shield
it from the magnetic gage.
2. Remove the TMMG from the
vessel, clean the float assembly
and the inside wall of the stilling
well.
4
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