A&D EJ-303 - 4. Setting Up the Balance; Power Source Options: AC Adapter and Batteries

9
Balance location
To measure correctly, to keep the balance in good condition, and to prevent hazards,
observe the following:
Do not install the balance in locations that are subject to excessive dust, breezes, vibration,
large temperature fluctuations, condensation, or that may have magnetic fields.
Install the balance on a solid surface and keep the balance level.
Do not install the balance in direct sunlight.
Do not install the balance near heaters or air conditioners.
Use a stable AC power source.
Do not install the balance in locations where combustible or corrosive gases may exist.
Allow the balance to reach equilibrium with the ambient temperature before use.
To ensure accurate weighing, turn the power ON at least half an hour before use, or
have the AC adapter connected to the balance.
When the balance is installed for the first time, or the balance has been moved, carry
out calibration as described in “7. CALIBRATION”.
4.2. Power Source
For the power source, the AC adapter or 4 x size “AA”
batteries can be used.
When Using the AC Adapter
Use a stable power source. To use the AC adapter,
insert the AC adapter plug into the AC adapter jack
on the rear side of the balance.
The balance is always connected to power internally
(warming up status) while the AC adapter is connected
to the balance even when nothing is shown on the
display.
When Using the Batteries
Prepare 4 x size “AA” (LR6 / R6P) batteries. The batteries are not provided with the
balance.
CAUTION
Take great care with the polarity of the batteries. The polarity marks are shown in the
battery box.
Replace the used batteries with four new ones when “lb0” is displayed.
Do not mix used and new batteries. Do not mix battery types. It may cause damage to
the batteries or the balance.
The battery life depends on the ambient temperature, how used and so on.
Remove batteries when the balance is not to be used for a long period of time.
They may leak and cause damage to the balance.
Damage due to battery leakage is not covered by the warranty.
AC adapter jack