3B Scientific Charge Indicator User Manual
3B SCIENTIFIC® PHYSICS
Charge Indicator 1009962
Instruction Sheet
02/13 ALF
1 On/off switch
2 Contact plate
3 Negative charge display (blue)
4 Positive charge display (red)
5 Rear contact plate (back of hous-
ing)
1. Description
The charge indicator is designed to detect electric charge and indicate its sign by means of a
blue or red LED When a charged object is
brought into close proximity or into contact with
it.
2. Equipment supplied
1 Charge indicator
2 Batteries
3. Technical Data
Dimensions: 62x67x20 mm3 approx.
Weight: 85 g approx.
Battery: AA 1.5 V (2x)
4. Operation
4.1 Determining the sign of a charge
• Turn on the charge indicator by setting the
switch to ON.
• Bring a charged object into close proximity
or into contact with the contact plate.
If the charge is negative, the blue LED will light
up and if it is positive the red one will.
• To discharge the charge indicator, make
contact between the contact plates on the
front and back.
• Turn off the charge indicator after use by
setting the switch to OFF.
4.2 Changing the battery
4.2.1 General information
• From time to time, check the state of the
battery.
1
•
Remove discharged or corroded bat-
teries from the apparatus.
• During prolonged periods of disuse,
also remove the battery from the apparatus.
• Do not dispose of the battery in the regular
household garbage. Follow the local regulations (In Germany: BattG; EU: 2006/66/EG).
4.2.2 Changing the battery
• Remove the screws from the back of the
housing and remove the back.
• Insert new batteries, making sure that their
polarity is correct.
The polarity is marked with plus and minus
symbols.
• Close chassis again.
5. Disposal
• The packaging should be disposed of at
local recycling points.
• Should you need to dispose of the equip-
ment itself, never throw it away in normal
domestic waste. Local regulations for the
disposal of electrical equipment will apply.
3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany ▪ www.3bscientific.com
Subject to technical amendments
© Copyright 2013 3B Scientific GmbH
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