TB 9-6625-2232-35
e. Press TEST key.
NOTE
Once the test is completed, the display and LEDs go blank
for a time and the operation starts again. If any of the
internal checks do not pass, a negative integer corresponding
to the check which did not pass is displayed. Refer to the
manufacturer's manual if the internal test does not pass.
f. Press TEST key again upon completion of a test.
8. DC Voltage
a. Performance Check
(1) Connect calibrator OUTPUT HI and LO to TI VOLTS/2WRΩ /4WRΩ HI and
LO.
(2) Press keys as listed in (a) through (d) below:
(a)
RESET.
(b)
MATH/REGISTERS 6.
(c)
MATH/REGISTERS STORE.
(d)
MATH/REGISTERS 9/N DIG DISP.
(3) Set calibrator output to settings listed in table 3. If TI does not indicate
within limits specified, perform b below.
Table 3. Dc Voltage
Calibrator
Test instrument
output
indications
settings
Min
Max
100
mV
99.9864 -3
100.0136 -3
1
V
.999894
1.000106
10
V
9.99897
10.00103
100
V
99.9893
100.0107
1000
V
99.776
1000.224
b. Adjustments
NOTE
Adjustments are located behind a front panel section located
at the front input terminals.
(1) Set calibrator for a 10 V output.
(2) Adjust A (coarse) and B (fine) until TI indicates 10.00000 1 count (R).
(3) Set calibrator for a 1 V output.
