Fluke 45 - Page 80

45
Service Manual
4-10
5. Connect the ac milliamps source to the [100 mA] and COM inputs.
6. Apply the ac milliamp outputs indicated in Table 4-5 (steps 20 and 21), and
calibrating each step by pressing the
E button.
Table 4-5. Front Panel Calibration
Note
Before proceeding, allow for settling time of at least 30 seconds with no
input applied.
Step Meter Cal Prompt Source Input Meter Settling Time
Before Pressing
E
DC Volts Calibration
1
2
3
4
5
6
7
8
9
10
0.000 mV DC
90.000 mV DC
-90.000 mV DC
900.00 mV DC
90.000 mV DC
290.00 mV DC
2.9000 V DC
29.000 V DC
290.00 V DC
1000.0 V DC
short
90 mV dc
-90 mV dc
900 mV dc
90 mV dc
290 mV dc
2.9 V dc
29 V dc
290 V dc
1000 V dc
5 s
2 s
2 s
2 s
5 s
1 s
1 s
1 s
1 s
1 s
Note
Settling times mentioned here assume that steps 1 through 32 are followed
in sequence. If you have just calibrated dc volts (steps 1 through 10), but
do not follow the subsequent sequence, a special settling period of 4
minutes may be required due to dielectric absorption caused by the 1000 V
dc input in step 10. Examples of this requirement include re-checking dc
volts calibration (going from step 10 back to step 1) or skipping to ohms
calibration (going from step 10 to step 25.)
AC Volts Calibration
11
12
13
29.000 mV AC
290.00 mV AC
0.2900 V AC
29 mV 1 kHz
290 mV 1 kHz
290 mV 1 kHz
3 s
3 s
3 s
14
15
16
17
2.9000 V AC
29.000 V AC
290.00 V AC
750.00 V AC
2.9 V 1 kHz
29 V 1 kHz
290 V 1 kHz
750 V 1 kHz
3 s
3 s
3 s
3 s
DC Milliamps Calibration
18
19
29.000 mA DC
100.00 mA DC
29 mA dc
100 mA dc
1 s
1 s
AC Milliamp Calibration
20
21
29.000 mA AC
100.00 mA AC
29 mA 1 kHz
100 mA 1 kHz
3 s
3 s
DC and AC Amps Calibration
22
23
24
10.000 A DC
2.000 A AC
10.000 A AC
10 A DC
2 A 1 kHz
10 A 1 kHz
3 s
5 s
5 s