2-8
SM 701730-01E
2.2.11 Trigger Sensitivity Test
Specification:
Sensitivity
1 div (display screen) at 500 MHz
Testing Procedure
Turn the display of each channel ON one at a time (with all other channels OFF), then
confirm the following:
1.
Enter the following settings on the DL1720E/DL1740E/DL1740EL.
CH (all channels)
V/div:
0.5 V/div,
Probe:
1:1
Coupling:
DC 50
Ω
TIME/DIV
1 ns/div
DISPLAY
Format:
Single
ACQ
Record Length:
1 k
Mode:
Average
Weight:
4
SIMPLE (Trigger)
Source:
Input channel
2.
Input a 500 MHz sinewave from the calibrator to the channel under test so that
the amplitude on the display screen is 500 mV
P-P
.
Items to Be Checked
Confirm that the triggers activate normally on all channels.
Trigger Sensitivity Test Waveform
2.2.12 Offset Accuracy
Specification:
2 mV/div–50 mV/div:
±
(1% of the s 0.2 mV)
100 mV/div–500 mV/div:
±
(1% of the s 2 mV)
1 V/div–10 V/div:
±
(1% of the s 20 mV)
Testing Procedure
1.
Execute calibration (see section 4.6, “Performing Calibration” in the DL1720E/
DL1740E/DL1740EL user’s manual (IM 701730-01E)).
2.
Enter the following settings on the DL1720E/DL1740E/DL1740EL.
CH (all channels)
V/div:
5 mV/div
Probe:
1:1
ACQ
Mode:
Box Average
TIME/DIV
5 ms/div
DISPLAY
Format:
Single
MEASURE
Mode:
ON
Item Setup:
Avg
(channel under test)
2.2 Tests for the DL1720E/DL1740E/DL1740EL
