TB 9-6625-2107-24
Table 3. Range Accuracy
Test instrument
Calibrator
RANGE
Error display
(VOLTS)
Meter
indications
Initial output
( %)
switch settings
indications
Voltage
Frequency
N/A1
0.001
---
0.9
V
1.0
kHz
0.003
3
3.0
V
1.0
kHz
1.0
N/A1
0.003
---
3.0
V
1.0
kHz
0.01
1
10
V
1.0
kHz
1.0
N/A1
0.01
---
9.0
V
1.0
kHz
Set calibrator to STANDBY and remove ac divider from setup
0.03
3
30
mV
1.0
kHz
1.0
0.1
1
100
mV
1.0
kHz
1.0
0.3
3
0.3
V
1.0
kHz
1.0
1
1
1.0
V
1.0
kHz
1.0
N/A1
1
---
0.9
V
1.0
kHz
1
.8
0.8
V
1.0
kHz
1.0
1
.6
0.6
V
1.0
kHz
1.0
1
.4
0.4
V
1.0
kHz
1.0
1
.2
0.2
V
1.0
kHz
1.0
3
3
3
V
1.0
kHz
1.0
N/A1
3
---
3
V
1.0
kHz
10
1
10
V
1.0
kHz
1.0
30
3
30
V
1.0
kHz
1.0
100
1
100
V
1.0
kHz
1.0
300
3
300
V
1.0
kHz
1.0
1Record
resulting TI indication for use in paragraph 9 below.
9. Frequency Response
a. Performance Check
(1) Connect TI INPUT to calibrator WIDEBAND OUTPUT and press calibrator W
BND pushbutton.
(2) Set TI RANGE switch to .01 VOLTS.
(3) Set calibrator FREQUENCY to 1 kHz and AMPLITUDE for an initial 9.0 mV
output. Adjust calibrator output AMPLITUDE for a TI indication equal to value recorded
in table 3 for .01 VOLTS (1 kHz) to establish a 1 kHz reference. Press calibrator NEW
REF pushbutton.
(4) Set calibrator FREQUENCY to 10 MHz and output AMPLITUDE for a TI
meter indication of 9 mV. Calibrator Error will be within 5.0 percent; if not, adjust
calibrator output AMPLITUDE for ERROR = 0% and adjust A2R76 (fig. 1) for a TI
indication of 9 (R).
NOTE
Adjustments interact, repeat as necessary to achieve in-
tolerance condition if adjustments are made.
(5) Repeat technique of (2) through (4) above, using settings listed in table 4.
Calibrator Error display indication will be within limits specified.
