TB 9-6625-2348-35
a. Performance Check
(1) Connect short leads (6 inches or less) to TI V Ω
and COM inputs.
(2) Set TI function switch to Ω and press BLUE button.
(3) Position leads parallel to one another and separated by 2 to 3 inches.
(4) Allow TI readings to stabilize below 1 nF, then press REL ∆ pushbutton.
(5) Connect open ends of leads to 5 nF capacitor. TI will indicate within limits
specified for appropriate model in first row of table 13.
(6) Disconnect capacitor.
(7) Repeat technique of (3) through (6) above, using capacitor nominal values and TI
indications listed in table 13. TI will indicate within limits specified for appropriate model
in table 13.
Capacitor
Test instrument indications
Model 87
Model 87 III
Nominal value
Min
Max
Min
Max
5
nF
4.93 nF
5.07 nF
4.92 nF
5.08 nF
0.05 F
0.0493 F
0.0507 F
0.0492 F
0.0508 F
0.5 F
0.493 F
0.507 F
0.492 F
0.508 F
1
F
0.97
F
1.03
0.87
1.13
F
F
F
15. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
