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8024B.
5.
Depress the AC/DC switch to activate the audible tone.
6.
Momentarily short the test leads together and observe that the tone sounds
coincident with the Wdown arrow.
The Aup arrow may or may not be displayed,
depending on the duration of the short.
4-37.
Level Detector Test
4-38.
Use the following procedure to verify the proper operation of the level detector
function:
1.
Select the
functions, 200 kO range.
2.
Program the pulse generator for a single pulse that is greater than 50 usec wide
and 0 to 3V +0.5% in amplitude.
3.
Connect the pulse generator to the
UUT: + to the V/ /S
terminal and — to the
COMMON
terminal.
4.
Cause the pulse generator to output single pulses and verify that the Aup arrow
appears momentarily in the LCD of the UUT for each single pulse.
5.
On the UUT
depress the AC/DC
switch to enable the audible tone. The
audible tone should be on continuously.
6.
Cause the pulse generator to output 500 ms pulses and verify that the Aup
arrow appears in the LCD and the audible tone stops for each pulse.
7.
Release the AC/DC
switch to disable the audible tone. The
VW down arrow
should appear in the UUT display.
4-39.
BT Test
4-40.
Complete the following procedure to verify that the BT indicator appears on the
LCD at the correct battery level, and that the accuracy of the UTT remains unaffected at
this battery voltage level:
1.
Connect the equipment as shown in Figure 4-5.
2.
Set the UUT switches to the following positions:
200 mV
in
AC/DC
DC (out)
3.
Set the DMM
controls to the following positions:
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