RIGOL
DS1000B Service Guide
4
Bandwidth Limit Test (continue)
Channel Vertical
Scale
Test Result
Calculation
Result
Limit
Pass/
Fail
Vrms1 Vrms2 Vrms3
CH3
100
mV/div
Amplitude
Loss A1
[1]
-3 dB
to 0 dB
Amplitude
Loss A2
[2]
≤-3 dB
200
mV/div
Amplitude
Loss A1
[1]
-3 dB
to 0 dB
Amplitude
Loss A2
[2]
≤-3 dB
500
mV/div
Amplitude
Loss A1
[1]
-3 dB
to 0 dB
Amplitude
Loss A2
[2]
≤-3 dB
CH4
100
mV/div
Amplitude
Loss A1
[1]
-3 dB
to 0 dB
Amplitude
Loss A2
[2]
≤-3 dB
200
mV/div
Amplitude
Loss A1
[1]
-3 dB
to 0 dB
Amplitude
Loss A2
[2]
≤-3 dB
500
mV/div
Amplitude
Loss A1
[1]
-3 dB
to 0 dB
Amplitude
Loss A2
[2]
≤-3 dB
Note
[1]
: Amplitude Loss A1 (dB) = 20 × lg (Vrms2/Vrms1).
Note
[2]
: Amplitude Loss A2 (dB) = 20 × lg (Vrms3/Vrms1).
Time Base Accuracy Test
Channel
Test Result ΔT
Calculation Result
[1]
Limit
Pass/Fail
CH1
≤ ±50 ppm
Note: Calculation Result = Test Result ΔT/1 ms.
Zero Point Offset Test
Channel
Fast Edge Signal
Amplitude
Vertical
Scale
Test Result
Limit
Pass/Fail
CH1
1.2 Vpp
200 mV/div
≤ 0.5 div
×Minimum
Time Base
Scale
[1]
3 Vpp
500 mV/div
CH2
1.2 Vpp
200 mV/div
3 Vpp
500 mV/div
CH3
1.2 Vpp
200 mV/div
3 Vpp
500 mV/div
CH4
1.2 Vpp
200 mV/div
3 Vpp
500 mV/div
Note
[1]
: For different models of oscilloscopes under test, the minimum time base scales are
different. For DS1204B, the minimum time base scale is 1 ns/div; for DS1104B, the minimum time
base scale is 2 ns/div; for DS1074B, the minimum time base scale is 5 ns/div
