TB 9-6625-2270-24
(7) Set TI range to 750 V AC and calibrator for a 750 V, 10 kHz output. Adjust C45
OPT HV ADJ (fig. 1) for a TI indication of 750.0 (10 digits) (R).
(8) Repeat (4), (5), and (7) above for the best compromise or until no further
adjustments are required.
10. dB Display
a. Performance Check
(1) Connect calibrator OUTPUT terminals to TI V and COMMON terminals.
(2) Simultaneously press both V and mA function pushbuttons. Then press 200mV
range pushbutton.
(3) Set TI range and calibrator for dBm and frequency outputs listed in table 5. TI
will indicate within the specified limits.
b. Adjustments. No adjustments can be made.
Table 5. dB Display
Calibrator
Test instrument indications
Test instrument
output
(dB)
range
Decibels
pushbutton
(dBm)
(kHz)
Min
Max
200
mV
-55
1
-54.50
-55.50
200 mV
-20
1
-19.50
-20.50
2
-10
1
-9.50
-10.50
20
+15
1
+14.75
+15.25
200
+30
1
+29.75
+30.25
11. Dc Current
a. Performance Check
(1) Connect calibrator OUTPUT terminals to TI mA and COMMON terminals.
(2) Press TI mA function and 200 A range pushbuttons. Set DC/AC pushbutton to
DC (out).
A. TI will indicate between 189.61 and
(3) Set calibrator for an output of 190
190.39 A dc.
(4) Repeat technique of (2) through (4) above using settings and indications listed in
table 6. TI will indicate within limits specified.
Table 6. Dc Current
Test instrument indications
Test instrument
(mA dc)
range
Calibrator
pushbutton
output
Min
Max
2
1.90 mA
1.8961
1.9039
20
19.0
mA
18.961
19.039
200
190
mA
189.61
190.39
2000
1.90 A
1890.3
1909.7
7
