21
Step 1
Step 2
Battery cover
Temperature &
humidity sensor
Step 3
9 Replacement for Batteries and Sensor Unit
Caution
■
Replace with two new batteries of the same type (size AA) and maker when
or (Low battery mark) is indicated.
■
Do not mix an old battery with a new battery.
■
Insert each battery with its positive (
+
) and negative (
-
) terminals properly
aligned with the corresponding symbols in the battery compartment.
■
When the batteries are drained completely, (Low battery mark) does not
appear.
■
The battery life is dependent upon the environmental temperature, battery type
and usage.
■
Remove the batteries if the device is not to be used for a long time. The
batteries may leak and cause a malfunction.
■
The accessory batteries are for operation check and their life may be short.
■
The temperature & humidity sensor unit is a consumable.
(Replacement is approx 2 years each)
When the sensor life has been exceeded or condensation is present on the
sensor, an abnormal value may be displayed.
Step 1 Turn of the AD-1641. Remove the protector.
Step 2 Push the side of the battery cover to
release hook and open it.
Step 3 Insert two new batteries with
the positive (
+
) and negative (
-
)
terminals properly aligned with
the corresponding symbols in the
battery compartment.
Step 4 Close the battery cover.
Step 5 In case of replacing the temperature & humidity sensor unit, slide it out and
replace with new one.
Battery Indicator
Enough remaining battery
Batteries are low. Recommend replacing them.
Batteries are drained. Replace them with new ones.
Summary of Contents for AD-1641
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