Tektronix DM 5010, Инструкция по эксплуатации

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Adjustment Procedure— DM 5010
4. Adjust the Ohms Gain Calibration Factors
NOTE
The actual resistance of the precision resistance, in­
cluding the interconnecting cable, must be known for
each calibration point before this step can be per­
formed. For convenience, write the actual resistance
in the blank columns (Table 6-5), for each calibration
point.
a. Set the DM 5010 controls to the preliminary settings
with the following exception:
OHMS on
c. Set the decade box resistance to the value listed in
Table 6-5.
d. Press the keypad numeric and decimal point buttons
listed in the table for the applied resistance value, beginning
with the most significant digit. (For example; for 190 Ω press
1, 9, 0, and ENTER; for 190 kΩ press 1, 9, 0, 0, 0, 0, and
ENTER).
e. Press ENTER.
f. CHECK—that the display reads as shown in the table,
± 1 in the LSD.
g. Repeat parts c through f for the remaining lines of
Table 6-5 except change the equipment setup as shown in
Fig. 6-1B for the 20 MΩ adjustments.
b. Connect the decade box to the DM 5010 input con­
nectors as shown in Fig. 6-1 A.
h. Remove all connections to the DM 5010.
A. Initial ohms gain adjustment setup.
B. 20 MΩ range adjustment setup.
2994-30
Fig. 6-1. Ohms adjustment setup.
REV JAN 1983
6-5