Fuji Electric NRF51 User Manual page 3

Please observe the following handling precautions to ensure that you use the NRF51 Electronic Personal
Dosimeter safely and avoid injury/damages. Failure to comply with the instructions contained in this manual
may reduce the safety of the instrument. Please read this User's Manual carefully to understand all the
precautions before using the NRF51 Electronic Personal Dosimeter.
Attention
Handling Precaution
Precautions for Use
・ The Dosimeter is a precision instrument. Do not drop it or subject it to impact.
・ Keep the Dosimeter in a plastic bag for protection when use in an
environment where chemical fumes, splashes/steam, full of dust and wastes
are present.
・ Handle the Dosimeter with clean, dry hands. If becomes tainted, clean it with
dry cloth.
・ Do not place the Dosimeter and metal objects in the same pocket. It may
cause the Dosimeter breaking.
・ Avoid use where high frequency noise. Pay attention when use near the
following devices:
1. Mobile phone
2. Local wireless phone such as Personal Handy-phone System (PHS)
3. High power transceiver
4. Microwave oven
5. Radar
6. Welding machine
7. Any other spark discharging or high intensity radio wave emitting
devices
Especially keep the Dosimeter at least 5cm away from any mobile/
wireless phones
・ When the battery level is critically low, read the displayed value within 10
minutes.
・ Use AA alkaline battery only. During replacement, align the battery polarities
correctly.
・ Prior to disposal of the used battery, protect exposed terminals with
insulating tape to prevent shorting that may cause possible heating, rupture,
or burning. Otherwise, injury or fire may result.
・ Do not throw the Dosimeter or battery into a fire. Do not disassemble them.
・ Keep a certain distance between the buzzer and ears to avoid the injury.
(Buzzer makes the sound over 90dB at 30 cm distance)
・ Do not use the Dosimeter as a survey meter.
・ If a hard impact is made on the Dosimeter, it is possible that there is a
crack on the Dosimeter. In this case, deteriorations to the capabilities in
a waterproof and a resistance of radio wave may happen.
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