Check Character Generator; Check Polarity Indication; Check Dc Voltage Measurement Accuracy; Check Dc Current Measurement Accuracy - Tektronix 213 DMM Instruction Manual

Calibration-213 Service
g. Set Standard to +3.000 volts.
h. CHECK-Reading displays an overrange condition
(scrambled character segments or B's).
4. CHECK CHARACTER GENERATOR
a. Set the DC Voltage Standard to +1.005 volts.
b. Rotate the Standards 100 mV selector from O through
9 ( 1.005 to 1.905).
c. CHECK-Millivolt digit on the readout displays a 0
through 9 (+1.005 to +1.905).
5. CHECK POLARITY INDICATION
a. Note the polarity of the reading on the display.
b. Reverse the banana plug connector at the Standard.
c. CHECK-The display reverses polarity sign.
d. Reset banana plug connector for positive inputs.
6. CHECK DC VOLTAGE MEASUREMENT ACCURACY
a. Set VOL TS-mA/DIV and the DC Voltage Standard as
shown in Table 6-6.
b. CHECK-Reading is within limits shown in Table 6-6.
c. Disconnect the Standard.
7. CHECK DC CURRENT MEASUREMENT ACCURACY
a. Set: VOLTS-mA/DIV
mA
0.1 (blue scale)
Button in
b. Connect the DC Current Standard to the mA-n and
common jacks using two banana-plug to BNC adapters
and a cable.
6-14
TABLE 6-6
DC Voltage Measurement Accuracy
VOL TS-mA/DIV DC Voltage
Setting Standard
Reading Limits
(blue scale)
Setting
0.1 +0.1000 V +. 1000 +.0996 to +.1004
-0.1000 V -.1000 -.0996 to -.1004
10 +20.00 V +20.00 +19.96 to +20.04
-20.00 V -20.00 -19.96 to -20.04
100 +200.0 V +200.0 +199.6 to +200.4
-200.0 V -200.0 -199.6 to -200.4
1000 +750 V +0750
+0747 to +0753
-750V -750 -0747 to -0753
c. Set VOL TS-mA/DIV and the Standard as shown in
Table 6-7.
d. CHECK-Reading is within limits shown in Table 6-7.
e. Disconnect the Standard.
TABLE 6-7
DC Current Measurement Accuracy
VOL TS-mA/DIV
DC Current
Setting Standard Reading Limits
(blue scale)
Setting
0.1
all zeros .0000 -.0003 to +.0003
0.1 +0.1 mA +. 1000 +.0992 to +.1008
1 +1mA +1.000 +0.994 to +1.006
10 +10mA +10.00
+09.94 to +10.06
100 +100 mA
+100.0 +099.4 to +100.6
1000 +1 A +1'000 +0994 to + 1006
8. CHECK/ADJUST OHMS CALIBRATION
a. Set: n
VOLTS-mA/DIV
Button in
10 kr2
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