Fluke 76 - Display Test; DC Voltage Test; MV DC Test

Maintenance
Performance Tests 3
3-9
Display Test 3-13.
To test the display, turn the UUT on and check whether all display segments come on as
indicated in Figure 3-4.
H
_
+
_
+
0 2001 400 2 600 3600 4100
mV
mV AC
mV DC
Mk Hz
n F
m
l9f.eps
Figure 3-4. Display
DC Voltage Test 3-14.
1. Set the UUT function switch to V DC and connect the DC Voltage Calibrator output
to the VΩ and COM input terminals of the UUT.
2. Referring to Table 3-2, set the DC Voltage Calibrator for the output indicated in steps
1 through 4 only. Verify that the UUT display reading is within the limits shown.
3. Reset the source to 0V.
Table 3-2. DC Voltage Test
Step
Input
Display Reading
Range Voltage
1 4V short 0 to ± .001 V DC
2 4V +3.5V 3.488 to 3.512V DC
3 4V -3.5V -3.488 to -3.512V DC
(and within 2 counts
of +3.5V reading)
4 40V +35V 34.88 to 35.12V DC
5 400V +350V 348.8 to 351.2V DC
6 600V +600V 597 to 603V DC
mV DC Test 3-15.
1. Set the UUT function switch to mV DC, and connect the DC Voltage Calibrator
output to the VΩ and COM input terminals of the UUT.
Note
For autorange, press and hold the push button for 1 second.
2. Referring to Table 3-3, set the DC Voltage Calibrator to the voltage indicated in the
steps. Verify that the UUT display reading is within the limits shown.
3. Reset the source to 0V.