4 Normal Operation
19
R4G/R4GE series
4-5
LOCK
This unit has two types of built-in LOCK functions. (Normal LOCK/Full LOCK)
When the unit is in the normal LOCK state, LOCK LED is lit, the voltage/current setting dial is
disabled, and the set values and operation mode cannot be changed. However, the following
functions are still available even in the Normal LOCK state.
-
Turning on/off the output with the [OUTPUT ON/OFF] switch
-
Checking preset values with the [SET] switch
-
Checking the OVP/OCP set values with the [OVP/OCP] switch
-
Switching memories at the multi-set function operation (Changing preset values in each
memory is invalid.) (Only for R4G series)
When the unit is in the Full LOCK state, all operations on the front panel will be disabled except for
the [POWER ON/OFF] switch and displays for SET/OVP/OCP. However, checking preset values,
protection set values, and unlocking with the [LOCK] switch are available.
Press the [LOCK] switch for at least two seconds. The product shifts to the Normal LOCK state with
the last set values kept.
(The LOCK LED is lit.) Moreover, holding down the [LOCK] switch 10 seconds or more shifts the
unit to the Full LOCK state. (The SET, OVP/OCP, and LOCK LEDs are lit.)
To unlock the Normal or Full LOCK state, press the [LOCK] switch again for two seconds or more.
Normal LOCK: LOCK LED is unlit.
Full LOCK : SET, OVP/OCP, and LOCK LEDs are unlit
*
The output voltage and current values are displayed on the screen.
Normal LCOK
Full LOCK
Locked
functions
Voltage/current dial operation
Voltage/current preset values
OVP/OCP set values
Preset values at multi-set
FINE switch
Voltage/current dial operation
Voltage/current preset values
OVP/OCP set values
Preset values at multi-set
FINE switch
OUTPUT ON/OFF switch
Unlocked
functions
Turning on/off the output with the
[OUTPUT ON/OFF] switch
Checking the preset values with the [SET]
switch
Checking the OVP/OCP set values with
the [OVP/OCP] switch
LOCK switch (used to unlock)
Checking the preset values with the [SET]
switch
Checking the OVP/OCP set values with
the [OVP/OCP] switch
LOCK switch (used to unlock)
Settings
Press and hold the LOCK switch (for
approx. two seconds).
Press and hold the LOCK switch (for
approx. ten seconds).
Unlocking
In Normal LOCK state,
Press and hold the LOCK switch (for
approx. two seconds).
In Full LOCK state,
Press and hold the LOCK switch (for
approx. two seconds).
Checking
Remarks
Not available when the multi-set function
is enabled.
LOCK
OCP
SET
OVP/
CV
CC
V
A
OUTPUT
REMOTE
SET LED: ON
OVP/OCP LED: ON
LOCK LED: ON
Press and hold more
LOCK
OCP
SET
OVP/
CV
CC
V
OUTPUT
REMOTE
Press & hold
LOCK LED: ON
