TB 9-6625-2023-35
7. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance
of this calibration. DEATH ON CONTACT may result if
personnel fail to observe safety precautions. REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. Set INPUT SELECT FRONT/REAR switch (rear panel) to FRONT.
b. Set VOLTAGE SELECT switches (rear panel) to 120 V and SAMPLE LENGTH
c. Connect TI to a 115 V ac power source.
d. Press LINE OFF/ON pushbutton to ON and allow at least 1 hour for warm up
and stabilization.
e. Press FUNCTION TEST key to on. All front panel indicators will light except
REAR TERMINAL indicator and TI will indicate +8888888 with all decimal points lit.
f. Set FUNCTION TEST key to off by pressing any other FUNCTION key.
8. Dc Voltage
a. Performance Check
(1) Connect calibrator OUTPUT HI and LO to TI INPUT (2 WIRE) HI and LO.
(2) Set controls as listed in (a) through (g) below:
(a)
FUNCTION =V key to on.
(b)
HIGH RESOLN key to off.
(c)
RANGE .1 key to on.
(d)
TRIGGER INTERNAL key to on.
(e) MATH OFF key to on.
(f) AUTO CAL key to on.
(g) GUARD pushbutton pressed to on.
(3) Set TI and calibrator for settings listed in table 3. If TI does not indicate
within limits specified, perform b below.
