46 S-Series Oscilloscopes Service Guide
3 Testing Performance
Offset Accuracy Test (1 MΩ)
Vertical Scale External
Supply
Setting
V
DMM+
V
scope+
V
error+
V
DMM-
V
Scope-
V
error-
Offset
Accuracy
Limit (±)
V
zero-error
V
zero-error
Limit (±)
Channel 1
5 mV/div ±2 V 32.5 mV 2.5 mV
10 mV/div ±5 V 78.0 mV 3.0 mV
20 mV/div ±10 V 154.0 mV 4.0 mV
50 mV/div ±10 V 157.0 mV 7.0 mV
100 mV/div ±20 V 312.0 mV 12.0 mV
200 mV/div ±20 V 322.0 mV 22.0 mV
500 mV/div ±20 V 352.0 mV 52.0 mV
1 V/div ±40 V 702.0 mV 102.0 mV
2 V/div ±40 V 802.0 mV 202 mV
5 V/div ±40 V 1.102 V 502 mV
Channel 2
5 mV/div ±2 V 32.5 mV 2.5 mV
10 mV/div ±5 V 78.0 mV 3.0 mV
20 mV/div ±10 V 154.0 mV 4.0 mV
50 mV/div ±10 V 157.0 mV 7.0 mV
100 mV/div ±20 V 312.0 mV 12.0 mV
200 mV/div ±20 V 322.0 mV 22.0 mV
500 mV/div ±20 V 352.0 mV 52.0 mV
1 V/div ±40 V 702.0 mV 102.0 mV
2 V/div ±40 V 802.0 mV 202 mV
5 V/div ±40 V 1.102 V 502 mV
Channel 3
5 mV/div ±2 V 32.5 mV 2.5 mV
10 mV/div ±5 V 78.0 mV 3.0 mV
20 mV/div ±10 V 154.0 mV 4.0 mV
50 mV/div ±10 V 157.0 mV 7.0 mV
100 mV/div ±20 V 312.0 mV 12.0 mV
200 mV/div ±20 V 322.0 mV 22.0 mV
500 mV/div ±20 V 352.0 mV 52.0 mV
1 V/div ±40 V 702.0 mV 102.0 mV
2 V/div ±40 V 802.0 mV 202 mV
5 V/div ±40 V 1.102 V 502 mV
Channel 4
5 mV/div ±2 V 32.5 mV 2.5 mV
10 mV/div ±5 V 78.0 mV 3.0 mV
20 mV/div ±10 V 154.0 mV 4.0 mV
50 mV/div ±10 V 157.0 mV 7.0 mV
100 mV/div ±20 V 312.0 mV 12.0 mV
200 mV/div ±20 V 322.0 mV 22.0 mV
500 mV/div ±20 V 352.0 mV 52.0 mV
1 V/div ±40 V 702.0 mV 102.0 mV
2 V/div ±40 V 802.0 mV 202 mV
5 V/div ±40 V 1.102 V 502 mV