YOKOGAWA DL850E User Manual page 39

2.1 Vertical and Horizontal Axes
Vertical Scale
The vertical scale is used to adjust the displayed waveform amplitude so that you can easily view
signals. You can set the vertical scale to determine the value per grid square (1 div) displayed on the
screen and to set the measurement range.
Use the SCALE knob to set the vertical scale for each channel.
Vertical Position
Because the DL850E/DL850EV can display many waveforms, the waveforms may overlap and be
difficult to view. If this happens, you can adjust the vertical display position to make waveforms easier
to view (vertical position).
Use the POSITION knob to set the vertical position for each channel.
Input Coupling
You can change the input coupling setting to match the signal that you are measuring. By changing the
setting, you can choose how the vertical-axis (voltage-axis) control circuit is coupled to the input signal.
The following types of input coupling are available: DC, AC, GND, TC, DC-RMS, AC-RMS, ACCEL,
and OFF.
* You can only select OFF for sub channels on the 16-CH voltage input module or the 16-CH temperature/
voltage input module. Sub channels set to OFF are not measured.
Vertical Zoom
You can zoom the waveform vertically. You can zoom the waveform by setting the vertical magnification
or by setting upper and lower display limits.
Linear Scaling
Linear scaling is a function that converts measured values into physical values and reads them directly.
There two types of linear scaling:
AX + B
Using scaling coefficient A and offset B, the DL850E/DL850EV scales values according to the
equation below.
Y= AX + B (where X is the measured value and Y is the physical value)
P1-P2
The DL850E/DL850EV determines the scale conversion equation (y = ax + b) using four values that
you specify: two measured values (P1:X, P2:X) and the value that each one should be converted to
(P1:Y, P2:Y).
The DL850E/DL850EV scales values using the scale conversion equation that it determines.
Physical values
(scaled values)
P2:Y
P1:Y
2-2
*
Set the appropriate input coupling for each input module.
y = ax + b
P2
P1
P2:X
P1:X
Measurement range
Measured values
IM DL850E-03EN