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PLZ-4WL
Panel Operation Basics
You can perform operations from the operation panel on the front of the PLZ-4WL. The PLZ-
4WL produces a beeping sound to notify you when you make an invalid selection or perform
an invalid key operation.
Function of the LOAD key
If you press LOAD when the load is turned off, the LOAD LED lights, and the load turns on. If
you press LOAD when the load is turned on, the LOAD LED turns off, and the load turns off.
How to use the rotary knob
Use the rotary knob to set values such as the current and resistance. Turning the rotary knob
clockwise increases a value and turning it counterclockwise decreases the value.
■
Coarse and fine adjustment
You can switch between coarse and fine adjustment by pressing the rotary knob. When the
down arrow shown at the upper right corner of the screen is large, coarse adjustment is
selected; when it is small, fine adjustment is selected.
The fine adjustment setting resolution is ten times that of coarse adjustment. During coarse
adjustment, you can make even more coarse adjustments by holding LOCAL while you turn
the rotary knob.
Popup menu operation
Some keys show a popup menu when you press them. If you press the key again while the
menu is shown, the selected item changes. The selected item changes to the next lowest
item each time you press the key. When you finish the key operation, the item at that point is
selected, and the popup menu is cleared automatically.
How to use the SHIFT key
The SHIFT key switches the function of each key. If you press a key without holding down
SHIFT, the function indicated above the key is enabled; if you press a key while holding down
SHIFT, the function indicated below the key is enabled.
For example, if you press SET/VSET without holding down SHIFT, the SET/VSET (indicated
in black) function is enabled. If you press SET/VSET while holding down SHIFT, the MENU
(indicated in blue) is enabled.
This manual denotes the operation of pressing a key while holding down SHIFT as
SHIFT+(notation above the key). For example, the selection of the MENU key is denoted as
“MENU (SHIFT+SET/VSET).” In this case, press SET/VSET while holding down SHIFT.
Adjusting the display contrast
You can adjust the contrast of the display by turning the rotary knob while you hold SHIFT.
0.000
V
Fine adjustment
Small arrow
0.000
V
Coarse adjustment
Large arrow
When you set a value, it is convenient to first use coarse adjustment to set the value roughly
and then to switch to fine adjustment to set it precisely.
0.00
mA
0.000
V
0.000
W
CC
SLE
W
RATE
0.000
A
0.01
mA/μs
SET
H 50 A 30 V
CP
CC
CR
CV
Popup menu
