Check Rms Current Measurement Accuracy - Tektronix 213 DMM Instruction Manual

TABLE 6-10
Alternate RMS Voltage Measurement Accuracy
VOL TS-mA/DIV Amplitude
Setting Calibrator
(blue scale) Settings Limits
0.1 0.2 V
This reading should .
1 2V
be the same as the
Digital Voltmeter
10 20 V
for the same number
100 100 V
of digits
13. CHECK RMS CURRENT MEASUREMENT ACCURACY
@
NOTE
To verify the specified accuracy of therms
current ranges with the procedure below, re-
quires the use of the AC Calibration Standard
(see footnote 3 in Table 6-1 ).
If
all previous
calibration steps have been accomplished, each
circuit function involved in rms current
measurement has been checked and adjusted;
therefore, further measurement accuracy
checks may not be necessary for the instru-
ments intended use.
a. Set mA pushbutton in.
b. Connect the AC Calibration Standard (Current con -
figuration) to the mA-D. and common jacks using two
banana-plug to BNC adapters and a cable.
Cal ibration-213 Service
c. Set VOL TS-mA/D IV and the Standard as shown in
Table6-11.
CHECK-Reading is within limits shown in Table 6-11.
e. Disconnect Standard.
TABLE6-11
RMS Current Measurement Accuracy
VOLTS-mAIDIV AC Calibration
Setting Standard
(blue scale)
Setting Reading Limits
(set at 40 kHz)
0.1 0.200 mA 0.200
.1950 to .2050
1 2.00 mA 2.000 1.925 to 2.075
10 20.00 mA 20.00 19.25 to 20. 75
100 200.0 mA 200.0 192.5 to 207.5
1000 1000 mA 1000 0925 to 1075
END OF PROCEDURE
6-17