Section 3: Test And Calibration; Equipment For Testing; Test Standard; Inspection Items And Methods - Owon SDS Series Service Manual

Section 3: Test and Calibration

Section 3: Test and Calibration

3.1 Equipment for Testing

Oscilloscope calibrator, signal generator, oscilloscope, LCR digital electric bridge, multi meter
calibrator

3.2 Test Standard

Q/ZLLD03-2005 enterprise standard and technical specification of SDS oscilloscopes by Fujian
Lilliput Optoelectronics Technology Co., Ltd

3.3 Inspection Items and Methods

3.3.1 Appearance and functional inspection
A. Appearance inspection
The appearance of the oscilloscope should be clean without obvious row a scar and deformation.
The juncture of the front cover and the back cover should be matched, seamless. The screws are
all fixed without loose. And the keyboards are flexible and light when pressing.
B. Functional inspection
First, power up the oscilloscope and come into measurement. Second, check all the keys and input
1KHz calibrating signals then press "Autoset", the oscilloscope should display waveforms and
work for measurement. Third, switch to the multi meter to check whether it could work normally.
3.3.2 Sweep rate and error inspection
A. As shown by Figure 1 connected, the CH1 set as follows:
Coupling: DC Channel: On Probe: 1X Invert: Off
Tested oscilloscope
Oscilloscope calibration
Output time scale
CH1-BNC
Q9 connection
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