Specifications

Chapter 2 Performance Calibration Test RIGOL
DS1000E/D Performance Verification Guide
2-11
Zero Point Offset Test
Zero point offset is defined as the offset of the crossing point of the waveform and the trigger level
relative to the trigger position as shown in the figure below.
Specification:
Zero Point Offset 500 ps
Test Devices: Fluke 9500B
Test Procedures:
1) Connect the active head of Fluke 9500B to CH1 of the oscilloscope.
2) Output a fast edge signal with 150 ps rise time and 600 mV amplitude from Fluke 9500B.
3) Configure the oscilloscope:
a) Press CH1 in the vertical control area (VERTICAL) at the front panel to enable CH1.
b) Rotate VERTICAL SCALE to set the vertical scale to 100 mV/div.
c) Rotate HORIZONTAL SCALE to set the horizontal time base to 2 ns (for 50 MHz
bandwidth oscilloscopes, set the horizontal time base to 5 ns).
d) Rotate VERTICAL POSITION and HORIZONTAL POSITION to set the
vertical position and horizontal position to appropriate values respectively.
e) Rotate TRIGGER LEVEL to adjust the trigger level to the middle of the screen.
4) Observe the display of the oscilloscope. Press Cursor  Mode “Manual” to enable the
manual cursor function to measure the zero point offset and record the measurement
result.
5) Keep other settings unchanged and adjust the amplitude of the fast edge signal to 3 V.
6) Set the vertical scale to 500 mV/div. Measure the zero point offset according to the above
method and record the test result.
7) Turn CH1 off. Repeat the above test steps to measure CH2 and record the test results.