Hanna-instruments HI8424 Manuel d'utilisateur Page 1

Instruction ManualHI 8424Portable pH/mV/°C Meterwww.hannainst.comMAN8424W R2 09/10Printed in EUROPE(ROMANIA)Hanna Instruments Inc.Highland Indust

10• When the buffer value is recognized and thereading is stable, an acoustic signal (if en-abled) advises the user, the "pH" symbol stopsfl

11• Rinse the temperature probe of a ChecktempC (or ChecktempF) or anotheraccurate thermometer, and place it close to the pH electrode.• Use the UP an

12While in normal measurement mode, press and hold the CFM/SETUP key for about5 seconds until the meter enters the menu selection mode.The following p

13HI 8424NEW has been accurately precalibrated for temperature at the factory.For optimum accuracy, it is recommended to recalibrate the meter for tem

14BATTERY REPLACEMENTBATTERY REPLACEMENTBATTERY REPLACEMENTBATTERY REPLACEMENTBATTERY REPLACEMENTThe meter displays the remaining battery per-centage

2Dear Customer,Thank you for choosing a HANNA instruments® product.Please read this instruction manual carefully before using the instrument.This manu

3Remove the instrument from the packing material and examine it carefully tomake sure that no damage has occurred during shipment. If there is anydama

41) BNC connector for pH or ORP electrodes2) Liquid Crystal Display (LCD)3) RANGE key, to select pH, mV or temperature range4) Up Arrow key, to manual

5SPECIFICATIONSSPECIFICATIONSSPECIFICATIONSSPECIFICATIONSSPECIFICATIONSRange -2.00 to 16.00 pH±699.9 mV / ±1999 mV-20.0 to 120.0°C / -4.0 to 248.0°FRe

6INITIAL PREPARATION• Remove the electrode protective cap before taking any measurements. If theelectrode has been left dry, soak the tip in HI 70300

7TEMPERATURE COMPENSATIONThe meter is designed to compensate for temperature, as the response of the pHelectrode is directly affected by temperature.A

8Notes:• To perform correct ORP measurements, the surface of the ORP electrode mustbe clean and smooth.• When not in use, the tip of the electrode sho

9pppppH CALIBRATIONH CALIBRATIONH CALIBRATIONH CALIBRATIONH CALIBRATIONFor better accuracy, frequent calibration of the instrument is recommended.The