YOKOGAWA PH72-21-E-AA, User Manual

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1
Preface
IM 12B03D02-01E
3rd Edition: Apr. 2009 (YK)
All Rights Reserved, Copyright © 2004, Yokogawa Electric Corporation
Preface
Thank you for purchasing the Model PH72 Personal pH/ORP Meter. Please read this
manual thoroughly before using the meter.
The following symbol marks are used for safety precautions in this manual.
WARNING
: Indicates that serious injury may result, if the user fails to
follow instructions.
CAUTION
: Indicates that minor injury to personnel, or damage to the
equipment, may result if the user fails to follow instructions.
WARNING
Do NOT use this instrument where there is a possibility of electrical shock.
Do NOT touch any part of the electrode immediately after using in very hot liquids —
otherwise, you may get burned.
CAUTION
Do not apply physical shock or excessive force to the glass sensor, or it may break.
If the meter will not be used for an extended period of time, be sure to remove the
batteries. Otherwise battery leakage may occur, causing damage to or malfunction of the
meter.
The contents of this manual are subject to change without prior notice.
Yokogawa Electric Corporation assumes no liability for damage, defects, or loss of the
product caused by any of the following:
Misuse by the user;
Inappropriate or out-of-specifications use of the product;
Use in an unsuitable environment;
Repair or modification of this or related products by persons other than Yokogawa-
authorized engineers.