2-9
SM 701730-01E
Performance Testing
2
3.
Input a
±
DC voltage from the calibrator to the channel under test.
4.
Apply a
±
1 V offset to the channel under test, then confirm that the values
obtained from automated measurement of waveform parameters (see section
10.6, “Automated Measurement of Waveform Parameters” in the DL1720E/
DL1740E/DL1740EL user’s manual (IM 701730-01E) lie within the judgment
criteria on all channels.
Input Voltage
Offset
Judgment Criteria
1 V
1 V
0.9898 to 1.0102 V
–1 V
–1 V
–1.0102 to –0.9898 V
2.2.13 DC Accuracy
Specification:
±
(1.5% of 8 div + offset accuracy)
Testing Procedure
1.
Execute calibration (see section 4.6, “Performing Calibration” in the user’s
manual (IM 701730-01E)).
2.
Enter the following settings on the DL1720E/DL1740E/DL1740EL.
CH (all channels)
Coupling:
DC 1 M
Ω
DISPLAY
Format:
Single
ACQ
Mode:
Box Average
TIME/DIV
1 ms/div
MEASURE
Mode:
ON
Item Setup:
Avg
(channel under test)
3.
Input DC voltage from the DC voltage generator to the channel under test.
4.
Using the table below, confirm that the measured values lie within the judgment
criteria on all channels.
Range
Input
Measured Value
Input
Measured Value
Input
Measured Value
Voltage
Voltage
Voltage
10 V
40 V
38.78 to 41.22 V
0 V
–1.22 to 1.22 V
–40 V
–41.22 to –38.78 V
5 V
20 V
19.38 to 20.62 V
0 V
–0.62 to 0.62 V
–20 V
–20.62 to –19.38 V
2 V
8.0 V
7.74 to 8.26 V
0 V
–0.26 to 0.26 V
–8.0 V
–8.26 to –7.74 V
1 V
4.0 V
3.86 to 4.14 V
0 V
–0.14 to 0.14 V
–4.0 V
–4.14 to –3.86 V
0.5 V
2.0 V
1.938 to 2.062 V
0 V
–62 to 62 mV
–2.0 V
–2.062 to –1.938 V
0.2 V
800 mV
774 to 826 mV
0 V
–26 to 26 mV
–800 mV
–826 to –774 mV
0.1 V
400 mV
386 to 414 mV
0 V
–14 to 14 mV
–400 mV
–414 to –386 mV
50 mV
200 mV
193.8 to 206.2 mV
0 V
–6.2 to 6.2 mV
–200 mV
–206.2 to –193.8 mV
20 mV
80 mV
77.4 to 82.6 mV
0 V
–2.6 to 2.6 mV
–80 mV
–82.6 to –77.4 mV
10 mV
40 mV
38.6 to 41.4 mV
0 V
–1.4 to 1.4 mV
–40 mV
–41.4 to –38.6 mV
5 mV
20 mV
19.2 to 20.8 mV
0 V
–0.8 to 0.8 mV
–20 mV
–20.8 to –19.2 mV
2 mV
8.0 mV
7.56 to 8.44 mV
0 V
–0.44 to 0.44 mV
–8.0 mV
–8.44 to –7.56 mV
2.2 Tests for the DL1720E/DL1740E/DL1740EL
