Maintenance
General Maintenance Information
3
3-7
3-7. General Maintenance Information
3-8. Handling Precautions for Static-Sensitive Devices
Caution
This unit contains CMOS components which can be damaged
by static discharge. Static-sensitive components include U1
(the custom analog IC), U2 (the microcomputer), and op amp
AR1. To prevent static discharge damage, take the following
precautions when servicing the instrument.
• Perform all work at a static-free work station.
• Do not handle components or pca (printed circuit assembly) by their connectors.
• Wear static ground straps.
• Use conductive foam to store components.
• Remove all plastic, vinyl, and Styrofoam from the work area.
• Use a grounded, temperature-regulated soldering iron.
3-9. Disassembly
XWWarning
To avoid the possibility of electric shock, remove the test leads
prior to disassembly.
WCaution
Opening the instrument case in damp, humid environments
followed by moving the instrument to a cooler environment
could cause condensation inside the case. Instrument
performance may be adversely affected by condensation.
WCaution
To avoid contaminating the pcas with oil from the hands (or O-
ring lubricant), handle the pcas by the edges or wear gloves. If
a pca does become contaminated, refer to the cleaning
instructions given later in this chapter. Do not allow the LCD to
come in contact with moisture.
Note
Disassembly requires a number 2 Pozidriv
®
screwdriver for all exterior
screws and a number 1 Phillips-head screwdriver for all interior screws.
Reassembly requires silicone lubricant (Parker Super O-Lube is
recommended) and new seals. A Fluke seal kit (Model 8025 A-7401, Fluke
Part Number 738112) provides a complete set of seals and four
replacement screws and washers for the bottom case. A 2 oz tube of Parker
Super O-Lube can be obtained from the Fluke Corporation by ordering p/n
812230.
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