Tektronix TYPE W Calibration Procedure page 19

CALIBRATION NOTES
13. COMPARISON VOLTAGE
a. Adjust Ve Cal, R310: +11V,
40.05%
Set the differential voltmeter to
read 11 volts. Connect the plug
(+) lead to the VC OUTPUT and the
common lead to the gnd post. Adjust
R310 Ve Cal for 11 volts.
b. Adjust tracking, R328: +1 volt,
t0.05%
Remove the differential voltmeter
plus (+) lead from the Ve OUTPUT.
Set the differential voltmeter for
a l volt reading. Set the COMPARI-
SON VOLTAGE (Vc) knob to 0. Leave
the dial at 10.0. Reconnect the
differential voltmeter plus (+) lead
to the Ve OUTPUT and adjust R323 for
1 volt.
@. Check accuracy: +0.1% + (0.05%
of Ve RANGE)
Set the COMPARISON VOLTAGE (VC) knob
to 0, and the dial to 0.00. Set the
differential voltmeter to read 0 volt.
Using the table below, check the
accuracy of the COMPARISON VOLTAGE.
voltmeter maximum
Ve knob Vc dial reading deviation
0 0.00 0.0V - -005V
1 0.00 1.0V -006V
2 0.00 2.0V .007V
3 0.00 3.0V .008V
4 0.00 4.0V .009V
5 0.00 5.0V -O010V
6 0.00 6.0V .O11V
7 ~0.00 7.0V .O12V
8 0.00 8.0V .013V
9 0.00 9.0V . .O14V
10 ~ 0.00 -10.0V .015V
10 1.00 10.1V .0151V
10 2.00 10.2V .0152V
10 3.00 10.3V .0153V
10 4.00 10.4V .O154V
10 5.00 10.5V -O155V
10 6.00 10.6V .0156V
10 7.00 10.7V .0157V
10 8.00 10.8V .0158V
10 9.00 10.9V —.0159V
10 10.00 11.0V .016 V
March 1969 W