3TABLE OF CONTENTSPRELIMINARY EXAMINATION .............................................................................................. 4GENERAL DESCRIPTION ..................................................................................................... 5ABBREVIATIONS ................................................................................................................ 5SPECIFICATIONS ................................................................................................................. 6PRECISION AND ACCURACY ................................................................................................ 6PRINCIPLE OF OPERATION ................................................................................................. 7FUNCTIONAL DESCRIPTION ................................................................................................ 8ERRORS AND WARNINGS ................................................................................................ 10GENERAL TIPS FOR AN ACCURATE MEASUREMENT ........................................................... 12STARTUP...................................................................................................................13MEASUREMENT PROCEDURE ........................................................................................... 14VALIDATION PROCEDURE ................................................................................................. 18CALIBRATION PROCEDURE ............................................................................................... 20GLP...........................................................................................................................23BATTERY MANAGEMENT .................................................................................................. 24BATTERY REPLACEMENT .................................................................................................. 24ACCESSORIES .................................................................................................................25WARRANTY .................................................................................................................26Dear Customer,Thank you for choosing a Hanna product. This manual will provide you with the necessaryinformation for the correct use of the instrument. Please read it carefully before using the meter. Ifyou need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.This instrument is in compliance with directives.All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner,Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA.