TB 9-6625-133-40
(16) Enter the true applied value of the calibrator output using TI numeric keypad,
then press [ENTER].
(17) Press SAMPLE to initiate the adjustment. Range gain adjustment is complete
when the BUSY legend goes out and the calibrated measurement is displayed.
(18) Repeat technique of (4) through (17) above for remaining TI ranges requiring
adjustment.
(19) When all ranges and modes requiring adjustment are completed, press CAL to
enter the CALIBRATION menu then press [QUIT] twice to exit CALIBRATION menu.
(20) Set calibrator to minimum, output to STBY.
Table 14. AC Current Adjustments.
TI
Calibrator
CurrentShunt
True Applied
Nom
DC
AC/DC
Displayed
Freq
Range
Cal Point
(A)
(A)
Dif
(A)
(Hz)
(A)
(Ω)
(ppm)
200 μ
10 μ
N/A 1
----------
----------
Zero (5% of Range)
400
10.000 u
200 μ
100 μ
1 mA 2
----------
Range Gain
400
100.000 u
10 μ
N/A 1
----------
----------
2m
Zero (0.5% of Range)
400
10.000 u
10 mA 3
2m
Range Gain
1m
400
100 μ
1 mA 2
----------
20 m
Zero (0.5% of Range)
400
100.000 u
10 mA3
20 m
Range Gain
10 m
400
10 mA3
200 m
Zero (5% of Range)
10 m
400
100 mA3
200 m
Range Gain
100 m
400
100 mA3
2
Zero (5% of Range)
100 m
400
1 A3,4
2
Range Gain
1
400
1 A3,4
20
Zero (5% of Range)
1
400
10 A3,4
20
Range Gain
10
400
Connect calibrator directly to TI A/LO. Set calibrator to 10.000 uA @ 400 Hz. Press TI CAL, [AUTO], SAMPLE.
1
Use technique in 13 a (8) through (12) to establish true applied current then follow steps (9) through (17) above to adjust.
2
3 Use technique in 13 a (21) through (23).to establish true applied current then follow steps (9) through (17) above to adjust.
4 Set calibrator OPR/STBY to STBY. Move connection to amplifier and set calibrator OPR/STBY to OPR.
g. Frequency Adjustment
(1) Set rear panel CALIBRATION switch to ENABLE (if necessary).
(2) Connect function generator OUTPUT to TI INPUT HI / LO through a 50 Ω
termination. Ensure that function generator output is OFF.
(3) Press TI keys as listed in (a) through (d) below.
(a)
CLEAR
(b)
[PWR UP DFLT]
(c)
Function: ACV
(d)
Range: 2V
(4) Set the function generator as listed in (a) through (e) below.
(a) sine wave
(b) 1 Vrms
(c) 1MHz
(d) 50 Ω output impedance
(e) Output, ON
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