Fluke 8024B - Page 23

8024B
Table 2-1. Controls, Indicators, and Connectors (cont)
FUNCTION
DC/AC/Audible tone A push-push switch (push on - push
Switch off, do not pull). When using V or mA
functions, the in position selects AC
measurement functions and the out
position selects the DC measurement
function. When used with Q or S func-
tions, the in position enables the audi-
ble tone feature and the out position
disables the audible tone feature.
PEAK HOLD Switch A push-push switch (push on - push
off, to the right only, do not push or pull
to the left), that enables or disables the
Peak-Hold function.
POWER Switch A slide switch used to turn the instru-
ment off and on.
2-11. OPERATING NOTES
2-12. The following paragraphs will familiarize you with the capabilities and limitations
of your Model 8024B.
2-13. Input Overload Protection
CAUTION
Exceeding the maximum input overload limits can damage your instrument.
The transient overload protection circuit is intended to protect against short
duration high energy pulses. The components used limit the protection to
approximately five pulses per second for 6 kV, 10microsecond pulses, and
about 0.6 watts average for lower pulses. Fast rep rate pulses as from a TV set
can damage the protection components; RV1 - RV4, R1 and R2’, if replaced,
use only Fiuke replacement parts to maintain product safety. * R2 is a fusable
resistor. Use exact replacement to insure safety.
2-14. Each measurement function and its associated ranges are equipped with input
overload protection. The overload limits for each function and range are given in Table 2-
2
2-15. Input Connection to COMMON
WARNING
TO AVOID ELECTRICAL SHOCK AND/OR INSTRUMENT DAMAGE, DO
NOT CONNECT THE COMMON INPUT TERMINAL TO ANY SOURCE OF
MORE THAN 500 VOLTS DC OR 500V RMS AC ABOVE EARTH GROUND.
2-6