4
Operation Method/Functional Explanation
［Insertion of Batteries］
Slide the battery cover on the back of the product body downward to open the cover. Insert the batteries in the direction
as illustrated, check that the batteries are correctly and firmly in place, and slide the battery cover again to close.
［Operation Method］
（1）Turning the power ON
With the power turned off, press the POWER button under open air atmospheric pressure, and check that the
minimum digit for the pressure indication is within 0±10 digits.
（2）Zero adjustment
After turning on the power, if a difference is detected between the zero values in open air atmospheric pressure,
press the ZERO button for three seconds or longer and performs the zero adjustment.
（3）Measurement
When pressure is applied, the measured value is displayed on the LCD.
（4）Turning the power OFF
With the power turned on, press the POWER button to turn off the power. When the auto power off function is
activated, the power is turned off according to the preset time.
AIR TYPE
kPa
LOBAT
HOLD
AIR TYPE
MODE
ZERO
SET
UP
HOLD
POWER
kPa
O. SET
AIR TYPE
MODE
ZERO
SET
UP
HOLD
POWER
kPa
AIR TYPE
MODE
ZERO
SET
UP
HOLD
POWER
kPa
bar psiin.
AIR TYPE
MODE
ZERO
SET
UP
HOLD
POWER
M kPa
mmHg Aq
［Functional Explanation］
（1）Hold
When pressure is applied, the measured
value is displayed. Press the HOLD button
to retain the pressure value displayed at
that time. At this time, the “HOLD” mark
is displayed on the LCD. Press the button
again to cancel the hold.
（2）Offset
When the pressure exceeds ±1%FS, press
the ZERO button for three seconds or
longer to enable subsequent indication of
variations with the zero value set to 0. At
this time,“0.SET” is displayed on the
LCD. Press the ZERO button for three
seconds or longer again to return the
indication to the previous display.
（3）Switching of auto power off function
With the power turned off, press the
POWER button for one second or longer
while pressing the HOLD button to set the
mode to the switching mode of the auto
power off function. Choose the mode from
four modes including [“P3”: 3 min.], [“P20”:
20 min.], [“PAt”: 20 min. after the pressure
reaches zero], and [“PoF”: Disabled].
Press the ZERO button to select the mode
and press the HOLD button to enter the
mode. While the switching mode is activated,
if any button operation is not made for 20
seconds, the mode shifts to the measurement
mode at the preset value displayed at that
time. In the initial state, [“P3”: 3 min.] is
set.
（4）Unit switching function（Only for −W model）
With the power turned off, press the
POWER button for one second or longer
while pressing the HOLD button to set the
mode to the unit switching mode. While the
unit indication is blinking, press the ZERO
button to select the mode and press the
HOLD button to enter the mode.
（5）Battery replacement timing
When the battery voltage is low, “LOBAT”
is displayed on the LCD. Replace the
batteries. The batteries are two AAA dry
cells. The used batteries should be discarded
according to the instructions of the respective
local governments. After replacing the batteries,
be sure to perform the zero adjustment（See
Operation Method ⑵）
.
（6）Excessive pressure error
When pressure exceeding 130% of the
rated pressure is applied, the indication
will start to blink. Check the source
pressure, and use the product within the
range of the rated pressures.
R03,LR03
With the power
turned OFF,
press HOLD and
POWER for one
second or longer.
With the power
turned OFF,
press ZERO and
POWER for one
second or longer.
《Unit Switching Function》
（Only for −W model）
《Switching of Auto Power OFF Function》
︽
Operation Mode
︾
（1）3 minutes
（2）20 minutes
（3）20 minutes after the
pressure reaches zero
（4）Disabled
ZERO button: SELECT
HOLD button: ENTER
（1）kPa
（2）MPa
（3）mmHg
（4）in.Hg
（5）mmAq
（6）psi
（7）bar
ZERO button: SELECT
HOLD button: ENTER
