Hanna Instruments hi 9224 사용자 설명서

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We

Hanna Instruments Srl
V.le delle industrie 12
35010 Ronchi di Villafranca (PD)
ITALY

herewith certify that the pH meters

have been tested and found to be in compliance with the following regulations:

Electrostatic Discharge

RF Radiated

Fast Transient

Radiated, Class B

Date of Issue: 30-11-1995

D.Volpato - Engineering Manager

On behalf of

Hanna Instruments S.r.l.

CE DECLARATION OF CONFORMITY

Recommendations for Users

Before using these products, make sure that they are entirely suitable for the environment in which they
are used.

Operation of these instruments in residential area could cause unacceptable interferences to radio and TV
equipments, requiring the operator to take all necessary steps to correct interferences.

The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid touching this glass
bulb at all time.

During calibration of instruments, ESD wrist straps should be worn to avoid possible damage to the electrode
by electrostatic discharge.

Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC
performance.

To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed
24VAC or 60 VDC.

To avoid damages or burns, do not perform any measurement in microwave ovens.

In particular cases HI 9224 and HI 92240 could turn off. In these cases they can be turned on by pressing
the ON/OFF key and the RANGE key respectively.