14 - 2 VM600 MPS hardware manual (standard version) MAMPS-HW/E
Edition 17 - February 2018
Modifications and repairs
MAINTENANCE AND TROUBLESHOOTING
14.2Modifications and repairs
No adjustments or calibration are required for the individual cards or system components in
a VM600 rack. In addition, there is no maintenance that the customer can perform on this
equipment.
Only Meggitt Sensing Systems personnel, or persons authorised by Meggitt Sensing
Systems, should attempt to modify or repair MPS hardware.
NOTE: Any attempt by unauthorised personnel to modify or repair equipment still under
guarantee will invalidate the warranty.
See 16 Service and support for contact details for repairing defective hardware.
14.3Cleaning
It is not required to clean a VM600 rack.
However, if cleaning does become necessary:
• Clean with a damp cloth, then wipe with a dry cloth if required.
• Keep away from live electrical parts.
• Do not use any solvents or cleaning agents. Never pour or spray any cleaner or liquid on
the rack. Keep all liquids away from the rack.
Liquids entering the housing of the rack can cause short-circuits and damage electronic
components.
14.4General remarks on fault-finding
The following sections contain information needed to localise a failure, whether this is due to
an internal MPS problem (that is, within the rack) or to an external problem.
The complete measurement system is composed of the following elements (arranged in the
order of the signal processing):
• The transducers and signal conditioners
• The cabling between the transducers and
signal conditioners, and the IOC4T / IOC8T cards
• The MPS rack, including the IOC, MPC4, AMC8 and/or CPUM cards.
The diagnostics of a system failure can be separated into these parts.
NOTE: Before troubleshooting the MPS, it is worthwhile checking that the overall
measuring system (transducer, signal conditioner, and cabling) is correctly
installed.
Electromagnetic
interference
:
Avoid storage near high-voltage lines or strong magnetic
fields
Radiation : Not exceeding levels found in inhabited buildings
HAZARDOUS VOLTAGES EXIST WITHIN VM600 RACKS.
I
F CLEANING BECOMES NECESSARY, USE A DAMP CLOTH ONLY AND KEEP AWAY FROM
LIVE
ELECTRICAL PARTS.
S
EE ALSO HAZARDOUS VOLTAGES AND THE RISK OF ELECTRIC SHOCK ON PAGE XV.
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