Ametek Sorensen DLM-E, Operation Manual

Page: 71 / 74

SECTION 5
MAINTENANCE AND
TROUBLESHOOTING
5.1 Periodic Service
This section provides periodic maintenance, calibration and troubleshooting information.
Except for periodic cleaning and calibration, no routine service is required. Whenever a unit
is removed from service, it should be cleaned, using denatured or isopropyl alcohol or an
equivalent solvent on the metal surfaces, and a weak solution of soap and water for the front
panel. Low pressure compressed air may be used to blow dust from in and around
components on the printed circuit boards.
5.2 Troubleshooting
Units requiring repair during their warranty period should be returned to the manufacturer for
service. Unauthorized repairs performed during the warranty period may void the warranty.
Please refer to the Warranty page in this manual for terms and contact information.
CAUTION!
Potentially lethal voltage exists in the power circuit and the output of high voltage
models. Filter capacitors store potentially dangerous energy for some time after
power is removed. Only experienced technical personnel should make repairs.
Be sure to isolate the power supply from the input line with an isolation transformer
when using grounded test equipment such as an oscilloscope in the power circuit.
5.2.1 Preliminary Checks
If the power supply displays any unusual or erratic shut the power supply off immediately
and disconnect it from the AC power source. Check all loads, programming and monitoring
connections and circuits. Check the AC input for correct voltage and frequency. Correct any
problems found and retest the system. If no problems are found or the unit fails to operate
correctly upon re–testing proceed with internal troubleshooting as described below.
M362000-01 Rev E 5-1