2-12
IM DL850E-01EN
DC Offset Cancel (DC Offset Cancel)
This function can be used to determine cursor measurement values, automatically measured values of waveform
parameters, and computed values by assuming the DC signal voltage measured during offset adjustment to be 0 V.
The adjustment range is ±30% of the measurement range. For example, if the vertical scale is set to 1 V/div, up
to 3 V can be assumed to be 0 V.
Note that when the offset is adjusted, the measurable range changes.
In addition, if you change the measurement range during offset adjustment, the offset is measured when the
range is changed, and this new offset is used to determine the values.
However, if you change the vertical scale and the measured value falls outside ±30% of the measurement range,
correct measurement will no longer be possible.
For example, if you are measuring a 5 V DC signal with the vertical scale set to 2 V/div, adjustment is possible
because the signal corresponds to 25% the measurement range. But, if you change the vertical scale to 1 V/div,
the signal corresponds to 50% the measurement range, and therefore adjustment is not possible.
When DC offset adjustment is enabled, the display range channel number appears highlighted.
• ON
DC offset canceling is enabled.
• OFF
DC offset canceling is disabled.
• Execute
Executes offset adjustment.
1.00V/div
Voltage 2.00V
Position 0.00div
OFF
CH1
CH1
1.00V/div
Voltage 0.00V
Position 0.00div
+3div
–
7div
When Execute is specified or
when ON is specified after Execute
Display range channel number
Measurable voltage range
• This function can be adjusted when the DC offset/gain adjustment function
• The settings (ON state and the value adjusted with Execute) are not retained when the DL850/DL850V is
turned off. If necessary, save the waveform data and setup data.
• This function can be used on voltage measurement modules 701250 (HS10M12), 701251 (HS1M16),
701255 (NONISO_10M12), and 720210(HS100M12).
Gain Adjustment (Gain)
Gain adjustment is used to adjust measured voltages. The adjustment range is ±5%.
The setting resolution is down to the fourth decimal place on all modules that can use this function.
• This function can be adjusted when the DC offset/gain adjustment function
• The setting is retained even when the DL850/DL850V is turned off.
• This function can be used on voltage measurement modules 701250 (HS10M12), 701251 (HS1M16),
701255 (NONISO_10M12), and 720210(HS100M12).
• The gain adjustment is reset to 1.0000 when Execute or ON is specified for DC offset adjustment.
• Gain adjustment is not possible when DC offset is set to ON.
2 Vertical Axis