Installation, Operation and Service Manual
LKAT Plus EMC
© 2018 DynAmp, LLC
Page 27
047331 A
6. MAINTENANCE & SPARE PARTS
6.1
PERIODIC MAINTENANCE
As is true with any electronic system, proper maintenance will tend to prolong the service life.
DynAmp, LLC recommends the following program be performed at the recommended interval
to prevent or detect damage to the LKAT Plus System and to ensure reliable performance.
Always use appropriate measures to correct any problems found. Following the suggested
maintenance schedule may assist in early diagnosis of problem(s) to minimize repairs and
down time.
IMPORTANT NOTE:
If Main pc board LED D6 (AD Status LED) is illuminated RED and / or the status
relay coil de-energizes, a fault condition may exist in the LKAT Plus electronics.
When this occurs, the system may require immediate attention. Refer to
“Troubleshooting an Accuracy Diagnostics Fault Indication”, in the “Theory of
Operation” section of this manual.
6.2
ANNUAL MAINTENANCE
Refer to the “Calibration” section of this manual for calibration intervals.
If possible, perform the steps described in section titled “System Checkout” in the
“Installation” section of this manual at least once per year to verify performance of the LKAT
Plus system. This may help to prevent or detect damage to the system and to ensure reliable
performance. Use appropriate measures to correct any problems found. If LKAT Plus
System equipment is exposed to extreme temperatures, DynAmp, LLC recommends these
steps be performed during the hottest time of the year.
In addition, the following steps should be performed once each year as part of annual
maintenance:
1. Visually inspect Measuring Head and interconnection cable for evidence of severe
overheating, cracks, separation of bonded surfaces, or excessive corrosion. Record any
suspect conditions.
2. Inspect the Measuring Head mounting screws and adjust as needed.
3. Visually inspect Metering Unit for evidence of severe overheating, corrosion, or
condensation. Record any suspect conditions and take appropriate action.
4. Clean as necessary; remove any oil or grease with a mild detergent. Do not use
abrasives or strong chemical solvents as they may damage the cables or erase the silk-
screen markings from the Metering Unit.
5. Disconnect power to the system before servicing.
CAUTION
To avoid the risk of shock and electrocution, always disconnect all cable assemblies
before performing any cleaning on the Metering Unit.
