TB 9-6625-1976-35
(2) Set FREQUENCY RANGE-Hz switch to 100 K and FREQUENCY dials to
100.00 kHz.
(3) Set VOLTAGE RANGE switch to 100 V and VOLTAGE dials to 10.0000 V.
(4) If multimeter does not indicate between 0.34 and 0.36 V dc, adjust A7R26 (fig. 1)
(5) Set FREQUENCY dials to 50.00 kHz.
(6) Measure distortion. Adjust A9R31 (fig. 1) for minimum distortion (R).
(7) Connect multimeter to TI OUTPUT and SENSE terminals, using two cables.
(8) Set FREQUENCY RANGE-Hz switch to 1 kHz and FREQUENCY dials to 1.0 K.
(9) Set VOLTAGE RANGE switch to 10 V, VOLTAGE dials to 10.00000 V and
SENSE switch to EXT.
(10)If multimeter does not indicate between + 100 V dc, adjust A7R6 (fig. 1) for a
within-tolerance indication (R).
10. Voltage Accuracy and Linearity
(Reference Level Only)
a. Performance Check
(1) Connect TI OUTPUT and SENSE HI terminals to the ac measurement
standard INPUT 2 HI terminal and connect the TI OUTPUT and SENSE LO terminals to
the ac measurement standard INPUT 2 LO terminal. Press ac measurement standard
INPUT 2 pushbutton.
(2) On ac measurement standard, press the UTIL MENUS pushbutton then the
MEAS CONTROL soft key. Set DIGITAL FILTER MODE to FAST and RESTART to
MEDIUM. Push the DONE soft key twice to return to the measurement display and set to
AUTO range.
(3) Set FREQUENCY RANGE-Hz switch to 1 kHz and FREQUENCY dials to
1.0000 K.
(4) Set VOLTAGE RANGE switch to 1 V, VOLTAGE dials to 1.000000 V, and
VOLTAGE ERROR-% switch to OFF.
(5) Set SENSE switch to EXT and MODE switch to OPER.
(6) Measure TI output. If ac measurement standard does not indicate between
0.99978 and 1.00022 V, perform b (1) through (5) below.
(7) Set MODE switch to STDBY.
(8) Repeat technique of (3) through (7) above, using settings and indications listed
CHANGE 1