Metal Samples MS2500L, Руководство оператора

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VII. Instrument Testing and Repair
A. Recommended Test Equipment
• 1 - Adjustable Power Supply.
• 1 - Digital Voltmeter.
• 1 - Digital Voltmeter with capability of reading current.
• 1 - Dual channel oscilloscope.
• 1 - 10 MPY meter prover.
• 1 - Set of working replacement boards.
• 1 - Replacement cable and connector assembly.
Note: Unless suitable environment and expertise is available for the testing and repair of sensitive
electronics, it is recommended that component level testing and replacement for this instrument be
performed only by Metal Samples.
Caution: When instrument is operated in hazardous areas all power to the instrument must be removed
before opening cover. The instrument was designed for easy board access and replacement in the field.
However, it is recommended that all electrical tests be performed in a laboratory or bench top environ-
ment.
B. Board Removal
After unscrewing enclosure cover and removing probe and loop current connectors, remove intercon-
nected boards from bracket. The boards should easily slide out from bracket.
C. Electrostatic Shield Removal
Using a 1/16" Allen wrench, remove the knobs from the shafts by loosening the 4 Allen head set
screws. Then remove the two switch mounting nuts using a 3/8" socket wrench. Remove the two
Phillips head screws from the top of the electrostatic shield and remove the electrostatic shield