TB 9-6625-174-24
(2) Connect coil to the applicable ammeter calibrator output
connector
corresponding to the first range listed in the ammeter calibrator Range column.
(3) Clamp TI around coil.
(4) Set TI for first range listed in Range column.
(5) Set ammeter calibrator for first range listed in ammeter calibrator Range
column.
(6) Set calibrator for the first value listed in the Applied column and set OPR/STBY
switch to OPR.
(7) Press ammeter calibrator OPERATE button. If TI indication is not within limits
specified, perform b below.
(8) Set ammeter calibrator to STANDBY and set calibrator to STBY.
(9) Repeat technique of (2) through (8) above for remaining ranges and applied
values listed in Range and Applied columns. If TI indication is not within limits specified,
perform b below.
(10) If applicable, disconnect equipment setup.
b. Adjustments. Refer to TI manufacturer's manual for corrective action.
12. Ac Current (≤500 A)
a. Performance Check
(1) Connect appropriate coil to the calibrator OUTPUT terminals.
NOTE
For current ≥2.2 A, use amplifier CURRENT OUTPUT
terminals and set BOOST On, when required.
(2) Clamp TI around coil.
(3) Set TI controls for the first range listed in the Range column.
(4) Set calibrator for the first value listed in the Applied column and set OPR/STBY
switch to OPR. If TI indication is not within limits specified, perform b below.
(5) Repeat technique of (3) and (4) above for remaining ranges and applied values
listed in Range and Applied columns. If TI indication is not within limits specified, perform
b below.
(6) If applicable, disconnect equipment setup.
b. Adjustments. Refer to TI manufacturer's manual for corrective action.
13. Ac Current (≤1500 A)
a. Performance Check
(1) Connect calibrator OUTPUT to ammeter calibrator INPUT terminals, observing
polarity.
