Hioki 3290-10, Instruction Manual

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2.2 Connecting Power
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Preparat
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2.2.1 Installing/ Changing the Batteries
2.2 Connecting Power
• To avoid electric shock when replacing the batteries, first
disconnect the clamp from the object to be measured.
• After replacing the batteries, replace the cover and screws
before using the meter.
• Do not mix old and new batteries, or different types of bat-
teries. Also, be careful to observe battery polarity during
installation. Otherwise, poor performance or damage from
battery leakage could result.
• To avoid the possibility of explosion, do not short circuit,
disassemble or incinerate batteries.
• Handle and dispose of batteries in accordance with local
regulations.
Remove the batteries when operating from external power. When
the batteries are installed, the 3290-10 will turn on even if the polar-
ity of the external power is reversed, damaging the meter.
• The indicator appears when battery voltage becomes low.
Replace the batteries as soon as possible.
• If AC power is lost due to a power outage, measurement can
continue if the batteries have been installed (available backup
time depends on battery condition).
• While operating from the AC adapter, the remaining battery
charge indicator (bar graph) indicates the loaded output volt-
age (about 6V) of the AC adapter. Although this may not dis-
play as 100%, measurements are unaffected.
1.
Confirm that the 3290-10 is turned off.
2.
Use a Phillips screwdriver to unfasten the
setscrew on the battery cover.
3.
Remove the battery cover.
4.
Insert (Change) four new batteries while
confirming the correct polarity.
5.
First fit the tab of the cover, then fit the
cover. Secure the cover in place by tighten-
ing the setscrew.