Adjust R1206. B Rng. And R1204; Attenuator Compensation - Tektronix DC 5010 Anleitung

Calibration-DC
SO 10
Adjustment Procedure
b. Set the DC 5010 LEVEL CH A to display 0 V.
c. ADJUST-R1205 counterclockwise to the point
where the digital multimeter display readout changes from
approximately 0 V to approximately .2 V.
d. Move the DC 5010 CH A SHAPED OUT connection
to the CH B SHAPED OUT.
e. Set the DC 501 0 LEVEL CH B to display 0 V.
f. ADJUST-R1207 counterclockwise to the point
where the digital multimeter display readout changes from
approximately 0 V to approximately .2 V.
g. Disconnect the digital multimeter cable connection.
11. Adjust R1206, B Rng, and R1204, A Rng
Refer to Fig. 8-3, adjustment setup, in the pullout pages.
a. Connect a coaxial cable with 50
Q
termination from
the pulse generator output to the digital multimeter input
connectors using a bnc-to-banana adapter.
b. Set the DC 5010 CHANNEL A and B COUPL for DC.
c. Adjust the pulse generator Low and High level con-
trols until the display readout (digital multimeter) indicates
between 1.900 and 2.000 volts. Note this reading.
d. Move the coaxial cable with the 50
Q
termination from
the digital multimeter input to the DC 5010 CHANNEL
input.
e. Reconnect the cable from the DC5010 CH
SHAPED OUT to the digital multimeter input connectors
f. Set the DC 5010 LEVEL CH B to display the reading
obtained in step 1 1 c (within 4 mV).
g. ADJUST-41206 to the point where the digital
multimeter display readout changes from approximately 0 V
to approximately .2 V.
h. Move the coaxial cable with 50 Q termination from the
DC 501 0 CHANNEL B input to the CHANNEL A input.
i. Set the DC 5010 LEVEL CH A to display the reading
obtained in step 11 c (within 4 mV).
j. ADJUST-R1204 to the point where the digital
muiltimeter display readout changes from approximately 0 V
to approximately .2 V.
12. Adjust AT1 505 (Channel A) and AT1 533
(Channel B), Attenuator Compensation .
Refer to Fig. 8-4, adjustment setup, in the pullout pages.
Use the following control setings.
CHANNEL A and
CHANNEL B
TERM 1 MQ (unlighted)
SLOPE
+
(unlighted)
ATTEN X5 (unlighted)
COUPL AC (lighted)
PROBE COMP (lighted)
FILTER (lighted)
Function Generator
Frequency Hz
Multiplier
Function
Off set
Output
1
1
o3
Squarewave
(midrange)
5 V p-to-p (Amplitude)
a. Connect a 50
Q
terminator and X2 attenuator from the
function generator output through a coaxial cable to the
DC 5010 CHANNEL A input.
b. Press the DC 501 0 PROBE COMP button.
c. ADJUST-the lower adjustment on AT1505 until the
digit on the far left side of the DC 5010 display just changes
from a steady 1 to a 0. The Channel A X5 attenuation is now
compensated.
d. Move the DC 5010 CHANNEL A input connection to
the CHANNEL B input and again press the PROBE COMP
button.