Vichy VC8145A - Section 4 Maintenance; Fuse Testing and Replacement

display. The value of setting is showed on the secondary display, then press
or to step up or down the setting value with 30S. The limit of the setting value is 3600S(1
hour), when the setting value is “0000” indicates that back light only be turned off manually.
Press the HOLD save the set value, the “memory” annunciator is lit on.
2.
Change Frequency of Power: Press AUTO, when “FrSET” annunciator is showed on the
primary display, the Frequency is showed on the secondary display, then press or
to select the frequency at 50Hz or 60Hz. (Once change the Frequency of Power, the meter
should be calibrated newly). Press the HOLD save the set value, the “memory” annunciator is lit
on.
3.
Change the Reference Impedance: Press AUTO, when “CONS” annunciator is showed on the
primary display, the Reference Impedance is showed on the secondary display. Then press or
to select the needed value (supplied value are 50, 75, 93, 100, 150, 300, 500, 600, 800, 1200,
2400 (unit: Ω)). Press the HOLD save the set value, the “memory” annunciator is lit on.
4. Change the continuity beep mode: Press AUTO, when “CH-BB” annunciator is showed on the
primary display, the “YES”(connect beep) or ”NO”(disconnect beep) is showed on the
secondary display. Press the HOLD save the set value, the “memory” annunciator is lit on.
5. Change the compare beep mode: Press AUTO, when “CO-BB” annunciator is showed on the
primary display, the “YES”(inside the limiter) or ”NO”(exceed the limiter) is showed on the
secondary display. Press the HOLD save the set value, the “memory” annunciator is lit on.
6. Factory set: Press AUTO, when “FACTY” annunciator is showed on the primary display, select
the default factory set. To resume the factory set, Press the HOLD save the default value. To
exit factory set mode, power off the instrument.
S
SECTION 4
Maintenance
NOTE
When servicing the meter, use only the replacement parts specified
INTRODUCTION
Section 4 provides the information necessary for the user to perform basic maintenance. Users should
not attempt to perform maintenance not described in this section. Qualified service personnel should
refer to this Manual for complete maintenance, service.
CAUTION
TO AVOID ELECTRICAL SHOCK OR DAMAGING THE METER, NEVER GET WATER INSIDE
THE CASE. TO AVOID DAMAGING THE METER HOUSING, NEVER APPLY SOLVENTS TO
THE METER. IF THE METER REQUIRES CLEANING, WIPE IT DOWN WITH A CLOTH THAT IS
LIGHTLY DAMPENED WITH WATE OR A MILD DETERGENT. DO NOT USE AROMATIC
HYDROCARBONS, CHLORINATED SOLVENTS, OR METHANOL-BASED FLUIDS WHEN
WIPING DOWN THE METER.
THE LINE FUSE
CAUTION
OPENING THE CASE MAY EXPOSE HAZARDOUS VOLTAGES. ALWAYS DISCONNECT THE
POWER CORD AND MEASURING INPUTS BEFORE OPENING THE CASE.
1.
Remove the screw on each side of the real bezel.
2.
Remove the case from the meter. The fuse is visible at the front of the main printed circuit
12