Dc Microvolts Output And Linearity Test; Dc Output Voltage Range Test Configuration - Fluke 515A Technical Manual

TI
HI
LO
GUARD
NULL
DET I
+
(BATTERY
OPERATED)
–
2.4.1
4.2.5.4 Reconnect the applicable test configuration (Figure 2 or 3).
4.2.6 Set the dc voltage standard power switch to operate.
4.2.7 Perform calibration in accordance with the following table as follows:
4.2.7.1 For each operation zero", set the null detectors operate–zero switch (sw) to zero; make the required
equipment settings and switch the null detectors operate–zero switch to operate.
4.2.7.2 During each operation Null I", set the DC voltage standard output voltage control(s) and/or adjust the
reference divider coarse and fine controls to obtain a null on the null detector I 10 V range; then, verify that the
null detector II indication is within the applicable tolerance limit listed.
Null Detectors TI Range
Operation Settings
"Zero" 100V
" 10V
" 1V

4.3 DC MICROVOLTS OUTPUT AND LINEARITY TEST

4.3.1 Set equipment control(s) to allow circuit changes without causing damage to the equipment whenever
applicable.
4.3.2 Connect equipment as shown in Figure 3.
NULL
DET II
(BATTERY OPERATED)
2.4.1
HI
IN
LO
COM
GUARD
DC TRANSFER
STANDARD
(BATTERY OPERATED)
2.4.4
+
–
Figure 2. DC Output Voltage Range Test Configuration
Reference Divider
Input SW Output SW
100V 100V
100V 10V
100V 1V
REF DIVIDER
2.4.2
+
OUTPUT
–
– + –
DC VOLTAGE
CALIBRATOR
2.4.3
GUARD
SENS
DC Voltage Null Det. I
Standard Operation
100V "Null I"
100V "
100V "
NAVAIR 17–20AQ–70
HI
INPUT
LO
OUT
Tolerance
Limits
3 mV or less
300 V or less
30 V or less
7