Fluke 8842a instruction manual AC Voltage Test Option -09 Only, Voltage Frequency

Maintenance 6

PERFORMANCE TEST

6-5. AC Voltage Test (Option -09 Only)

The following procedure may be used to verify the accuracy of the VAC function:

1.Ensure the 8842A is on and warmed up for at least 1 hour.

2.Select the VAC function and the slow (S) reading rate.

3.Connect the AC Calibrator to provide a voltage input to the HI and LO INPUT terminals.

4.(Low- and Mid-Frequency Test.) For each step in Table 6-3, select the indicated range, set the AC Calibrator for the specified input, and verify that the displayed reading is within the limits shown for each reading rate.

NOTE

This procedure tests the extremes of each range. You may shorten the procedure by testing only the "quick test points" indicated in Table 6-3 with asterisks.

5.(High-Frequency Test.) For each step in Table 6-4, select the indicated range, set the AC Calibrator for the specified input, and verify that the displayed reading is within the limits shown for each reading rate.

NOTE

This procedure tests the extremes of each range. You may shorten the procedure by testing only the "quick test points" indicated in Table 6-4 with asterisks.

6. Set the AC calibrator to standby and disconnect it from the 8842A.

Table 6-3. Low- and Mid-Frequency AC Voltage Test

Step Range

Number

Input

Error in Counts

Display Readings

12V

22V

3*	2V
4	2V
5*	2V

62V

72V

82V

92V

10* 200 mV

11 200 mV

*Quick Test points

Voltage	Frequency
0.01000V	200 Hz
0.10000V	200 Hz
0.30000V	200 Hz
1.00000V	200 Hz
1.90000V	200 Hz
0.10000V	20 Hz
1.90000V	20 Hz
.10000V	45 Hz
1.90000V	45 Hz
0.001000V	100 Hz
0.190000V	20 kHz

181

87

101

150

213

220

2380

135

765

204

252

Minimum

0.00819 VAC

.09913 VAC

0.29899 VAC

0.99850 VAC

1.89787 VAC

0.09780 VAC

1.87620 VAC

0.09865 VAC

1.89235 VAC

00.796 mVAC

189.748 mVAC

Maximum

0.01181 VAC

.10087 VAC

0.30101 VAC

1.00150 VAC

1.90213 VAC

0.10220 VAC

1.92380 VAC

0.10135 VAC

1.90765 VAC

190.252 mVAC

190.252 MvAC

6-7