Tenma 72-3500, Руководство пользователя, Страница: 6 / 6

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TECHNICAL SPECIFICATION
Accuracy: ± (a% r b word count), warranty period is one year.
Environment temperature: 23°C ± 5°C (73.4°F ± 9°F) relative humidity ≤ 75%.
ACA Measurement
Range Resolution Accuracy
2.000A 1mA ± (4% + 30)
20.00A 10mA ± (3% + 10)
200.0A 100mA ± (2.5% + 5)
Overload protection 200A.
• Accuracy warranty coverage: 5~100% range, 2A open circuit allows <20 residue
readings.
• The instrument’s displays are true valid values. Frequency response: 50~60Hz
• Non-sinusoidal wave counts add error by crest factor:
- when crest factor is 1~2, add 3%.
- when crest factor is 2~2.5, add 5%.
- when crest factor is 2.5~3, add 7%.
MAINTENANCE & REPAIR
• Before removing the cover of the instrument, ensure the power supply is switched
off.
• Use a damp cloth and a mild detergent to clean the instrument cover.
• Do not use any chemicals, abrasives or solvents that could damage the
instrument.
• Maintenance should be referred to qualified personnel.
REPLACING THE BATTERIES
• When the LCD shows the low battery symbol, replace the batteries immediately,
otherwise measurement accuracy may be affected.
• Move the power switch to the OFF position.
• Unscrew the screw from the battery cover, remove the battery cover and replace
the old batteries with two new replacements of the same specification
(2 x AAA
1.5V).
Made in China. www.premierfarnell.com
V.1.0
INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF
ELECTRICAL & ELECTRONIC EQUIPMENT.
This symbol indicate that separate collection of Waste Electrical and Electronic
Equipment (WEEE) or waste batteries is required. Do not dispose of these items with
general household waste. Separate for the treatment, recovery and recycling of the
materials used. Waste batteries can be returned to any waste battery recycling point
which are provided by most battery retailers. Contact your local authority for details of
the battery and WEEE recycling schemes available in your area.