Tektronix DM 5010, Инструкция по эксплуатации

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Performance Check— DM 5010
m. CHECK— that the absolute value of the DM5010
display reads ^2.12 mV.
n. If desired, this step may be repeated with the calibra­
tor, counter, and GUARD connected to the LOW side of the
resistor instead of the HIGH side.
o. Set the voltage calibrator to a minimum output, and
remove all connections to the DM 5010.
f. Enable the COMPARE calculation.
g. Set the ac calibrator output to 1.5 V rms at the fre­
quency listed in Table 5-5. Use the counter to verify the
calibrator frequency.
h. CHECK—that
the DM 5010 display reads PASS as
shown in the table.
4. Check De Normal Mode Rejection
a. Make certain the DM 5010 50-60 Hz jumper is in the
60 Hz position.
b. Connect the counter, ac calibrator, and DM 5010 as
shown in Fig. 5-2.
c. Set the DM 5010 controls to the preliminary settings
with the following exception:
RANGE STEP (2 V range)
d. Store 0.0212 for one LIMITS constant.
e. Store -0.0212 for the other LIMITS constant.
i. Repeat parts g and h for each remaining line of the
table for the 60 Hz jumper position checks. Be sure to set
the DM 5010 CONVERSION RATE (FAST button) as listed
in the table.
j. Reposition the DM 5010 50-60 Hz jumper to the 50 Hz
position.
k. CHECK— that the DM 5010 display reads PASS as
shown in the table for the 50 Hz jumper position checks.
l. Remove ail connections to the DM 5010.
m. Reposition the DM 5010 50-60 Hz jumper to the
power module line frequency.
Fig. 5-2. De normal mode rejection setup.
5-8
REV JAN 1982