SIGLENT TECHNOLOGIES SDS5000X Series, Service Manual

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SDS5000XSeries Digital Oscilloscope Service Manual
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Level@x).
15. Check if the trigger level is in the limited range in Table 5 .
16. Set the trigger level to 0mV and -1035mV,repeat step13to step15.
17. Set trigger slope to negative, repeat step13to step16.
18. Disconnect the test connection.
5.8 To Verify Noise Floor
This test checks the noise floor of the analog channels and varies from
models. In this test, do not connect any testing devices to the
oscilloscope.
Table 6 Noise Floor Limited Range
Volt/Div
pkpk/stdev
Limited
Range SNR
Limited
Range
Volt/Div
pkpk/stdev
Limited
Range SNR
Limited
Range
500 uV [1,15] [24,55] 100 mV [1,15] [38,55]
1 mV [1,15] [25,55] 200 mV [1,15] [38,55]
2 mV [1,15] [27,55] 500 mV [1,15] [38,55]
5 mV [1,15] [31,55] 1 V [1,15] [38,55]
10 mV [1,15] [35,55] 2 V [1,15] [38,55]
20 mV [1,15] [38,55] 5 V [1,15] [38,55]
50 mV [1,15] [38,55] 10 V [1,15] [38,55]