TB 9-6625-2348-35
Calibrator output
Test instrument
Amplitude
Indications
Min
Max
3463
3537
mA
3.5 A
60 Hz
mA
3463
3537
mA
3.5 A
1 kHz
mA
10 A
60 Hz
9.88
A
10.12 A
10 A
1 kHz
9.88
A
10.12 A
(12) Set calibrator output to minimum and disconnect equipment setup.
b. Adjustments. No adjustments can be made.
13. Resistance/Conductance
a. Performance Check
(1) Connect calibrator to TI V Ω
and COM inputs.
(2) Set TI function switch to Ω.
(3) Set calibrator for a 0 Ω (2-wire Comp: ON) output and press TI REL ∆
pushbutton.
(4) Press TI RANGE pushbutton for 400 Ω range.
(5) Set calibrator for a 190 Ω nominal output.
(6) Rotate calibrator knob below EDIT FIELD pushbutton to adjust calibrator
display indication to equal TI indication. Calibrator Err display will indicate within limits
specified for appropriate model in first row of table 12.
(7) Repeat technique of (4) through (6) above, using calibrator outputs and TI
indications listed in table 12. Calibrator Err display will indicate within limits specified for
Test instrument
Calibrator
Err indication (%)
Range
Nominal output
Model 87 & 87 III
400 Ω
190 Ω
0.3158
4 kΩ
1.9 kΩ
0.2632
40 kΩ
19 kΩ
0.2632
1
400 kΩ
190 kΩ
0.6316
4 MΩ
1.9 MΩ
0.6316
40 MΩ
19 MΩ
1.1579
Calibrator 2-wire Comp: OFF
1
(8) Press TI RANGE pushbutton to enter 40 nanosiemens range.
(9) Set calibrator output to 100 MΩ.
(10) TI will indicate between 9.80 and 10.20 nS.
(11) Set calibrator output to minimum and disconnect equipment setup.
b. Adjustments. No adjustments can be made.