Hioki 8847, Instruction Manual

Page: 63 / 372

3.5 Input Channel Setting
53
3
Chapte
r 3
Measur
em
en
t Proced
ure
4. Vertical axis
(Voltage axis)
Zoom
Vertical axis (voltage axis) zoom-up or zoom-down settings can be made sepa-
rately for each channel. The settings will be used for display and printout.
Zooming is carried out using the zero position as reference. The measurement
resolution does not change.
See: "7.5.3 Magnifying and Compressing Vertical Axis (Voltage Axis)" (

p.112)
To achieve a user-specified zoom setting, the Variable function is used. By
reversing plus/minus, the waveform can be inverted.
See: "8.6 Variable Function (Setting the Waveform Display Freely)" (

p.134)
"8.8 Inverting the Waveform (Invert Function)" (

p.138)
5. Vernier
Fine adjustment of input voltage can be performed arbitrarily on the Waveform
screen (display only). When recording physical values such as noise, temperature
and acceleration using sensors, amplitude can be adjusted to facilitate calibration.
See: "8.7 Fine Adjustment of Input Values (Vernier Function)" (

p.137)
6. Zero Position
Sets the 0 V level display position. If the 0 V input level has shifted, perform
zero-adjust.
See: "2.7 Adjusting the Zero Position (Zero-Adjust)" (

p.36)
By using the zero position preset
(Press the F1 [Preset] )
, the zero
position of all channels can be changed at the same time.
Select
If the zero position of the 8969 Strain Unit is out of alignment, perform
auto balance.
See: "8.10.4 Settings for the 8969 Strain Unit" (

p.144)
• Only the display position is shifted. No offset is applied to the input.
• Vertical axis (voltage axis) zooming is performed using the zero position as ref-
erence.
• Zero position adjustment and vertical axis (voltage axis) zooming only change
the voltage range as displayed on the Waveform screen. The actual measure-
ment range does not change.
Ascending
(10%
→
85%)
The zero position of Ch1 is set to 10% and the following channels up to Ch16
are increased by 5% each.
Descending
(85%
→
10%)
The zero position of Ch1 is set to 85% and the following channels up to Ch16
are decreased by 5% each.
All Ch 0% The zero position of all channels is set to 0%.
All Ch 50% The zero position of all channels is set to 50%.
･ Simply moving the display position will not apply an offset to the
input.
･ Zoom of the vertical axis direction (voltage axis) is based on the zero
position.
･ The voltage range displayed in the waveform screen changes with
zero position and zoom of the vertical axis
(voltage axis)
but the
measurable range does not change.