5-10
IM 701730-01E
Explanation
The offset voltage setting applies to all input couplings (AC1 M
Ω
, DC1 M
Ω
, DC 50
Ω
,
and GND).
Selectable Range of Offset Voltage
Voltage Axis Sensitivity (Probe = 1:1)
Offset Voltage Selectable Range
2 mV/div to 50 mV/div
–1.0 V to 1.0 V
0.1 V/div to 0.5 V/div
–10.0 V to 10.0 V
1 V/div to 10 V/div
–100.0 V to 100.0 V (except 1/V/div only for DC50
Ω
)
• The resolution is 0.01 divisions. For 2 mV/div, the resolution is 0.02 mV.
• The values are 10 times, 100 times, and 1000 times the values shown above when the probe
attenuation is 10:1, 100:1, and 1000:1, respectively. If the probe current-to-voltage conversion
ratio is 10 A: 1 V, the values are the same 10 times the values shown above with the unit
changed to A. If the ratio is 100 A: 1 V, the values are 100 times the values shown above with the
unit changed to A.
Resetting the Offset Value
Pressing the RESET key resets the offset value to 0 V.
Notes on Setting the Offset Voltage
• Only the display position changes when acquisition is stopped. The new offset voltage
is applied to the acquired data the next time waveform acquisition is started.
• You can select whether to apply the offset voltage to cursor measurement values,
automated measurement values of waveform parameters, and computation. See
section 15.3.
• If you change the probe attenuation, the offset changes proportionally to reflect the
new attenuation rate.
• If you change the vertical axis sensitivity after setting the offset voltage value, the
offset voltage value does not change.
• The selectable range and resolution of the offset voltage value vary depending on the
vertical axis sensitivity setting.
The behavior when you change the vertical axis sensitivity after setting the offset
voltage value is indicated below. If you change the vertical axis sensitivity back to the
original setting without changing the offset voltage value, the original offset voltage
value returns.
• When the vertical axis sensitivity is increased (the value is decreased) and the
specified offset value exceeds the selectable range of the offset voltage at the new
vertical axis sensitivity, the offset voltage is set to the maximum value of the
selectable range of the offset value at the new vertical axis sensitivity.
• When the vertical axis sensitivity is decreased (the value is increased) and the
specified resolution of the offset value falls below the resolution of the offset value
at the new vertical axis sensitivity, the resolution is set to the resolution of the offset
voltage at the new vertical axis sensitivity.
5.6 Setting the Offset Voltage
