Hanna Instruments HI 98103 Manuale utente

www.hannainst.com

Checker®

HI 98103

pH tester with

replaceable electrode

WARRANTY

This meter is guaranteed for one year against de-

fects in workmanship and materials when used for its

intended purpose and maintained according to instruc-

tions. The electrode is guaranteed for a period of

six months. This warranty is limited to repair or re-

placement free of charge. Damages due to accident,

misuse, tampering or lack of prescribed maintenance

are not covered. If service is required, contact the

dealer from whom you purchased the instrument. If

under warranty, report the model number, date of pur-

chase, serial number and the nature of the failure. If the

repair is not covered by the warranty, you will be noti-

fied of the charges incurred. If the instrument is to be

returned to Hanna Instruments, first obtain a Returned

Goods Authorization Number from the Customer Ser-

vice department and then send it with shipment costs

prepaid. When shipping any instrument, make sure it is

properly packaged for complete protection.

Dear Customer,

Thank you for choosing a Hanna product.

Read carefully this instruction manual before

using the instrument. If you need additional

technical information, do not hesitate to e-mail

us at [email protected].

This instrument is in compliance with the

directives.

PRELIMINARY EXAMINATION

Remove the instrument from the packing mate-

rial and examine it carefully to make sure that

no damage has occurred during shipment. If

there is any damage, immediately notify your

Dealer.

The meter is supplied complete with

• HI 1270 pH electrode

• 2 x 1.5V alkaline batteries

• instructions

Note: Conserve all packing material until the

instrument has been observed to func-

tion correctly. Any defective item must

be returned in its original packing.

SPECIFICATIONS

Range 0.00 to 14.00 pH

Resolution 0.01 pH

Accuracy(@20°C) ±0.2 pH

Calibration Manual, 2 points

Electrode HI 1270 (included)

Environment 0 to 50°C (32 to 122°F);

RH 95% max

Battery type 2x1.5V alkaline

Battery life approx. 3000 hours

of continuous use

Dimensions 66x50x25 mm (2.6x2.2x1")

(meter only)

Weight 50 g (1.8 oz)

ACCESSORIES

HI 1270 Replaceable pH electrode with

screw-type connector

HI 70004P pH 4.01 buffer sachet (20 ml,

25 pcs)

HI 70007P pH 7.01 buffer sachet (20 ml,

25 pcs)

HI 70010P pH 10.01 buffer sachet (20 ml,

25 pcs)

HI 70300M Storage solution, 230 ml bottle

HI 7061M Cleaning solution, 230 ml bottle

IST98103 12/04

Recommendations for Users

Before using this product, make sure that it is entirely suitable

for the environment in which it is used. Operation of this

instrument in residential areas could cause interference to radio

and TV equipment. The glass bulb at the end of the pH electrode

is sensitive to electrostatic discharges. Avoid touching this glass

bulb at all times. Any variation introduced by the user to the

supplied equipment may degrade the instrument's EMC

performance. To avoid electrical shocks, do not use this

instrument when voltage at the measurement surface exceeds

24 Vac or 60 Vdc. To avoid damage or burns, do not perform

any measurement in microwave ovens.

Checker®is a registered Trademark

of "Hanna Instruments"

INITIAL PREPARATION

The pH electrode is shipped dry. Before using

the Checker®, remove the protective cap and

condition the electrode by soaking the tip (bot-

tom 4 cm/1½") in pH 7.01 buffer solution for a

couple of hours. Then follow the calibration

procedure.

OPERATION

• Do not be alarmed if white crystals appear

around the cap. This is normal with pH elec-

trodes and they dissolve when rinsed with

water.

• Connect the electrode to the meter.

• Turn the Checker®on by sliding the switch

on the top.

• Remove the protective cap and immerse the

tip of the electrode (bottom 4cm/1½") in the

sample to be tested.

• Stir gently and wait for stable reading.

NEVER IMMERSE THE ELECTRODE OVER

THE MAXIMUM IMMERSION LEVEL. THE

CONNECTOR MUST BE ALWAYS CLEAN

AND DRY.

•After use, rinse the electrode

with water and store it with

a few drops of HI70300

storage solution in the pro-

tective cap.

DO NOT USE DISTILLED OR DEIONIZED WA-

TER FOR STORAGE PURPOSES.

• Always replace the protective cap after use.

BATTERY REPLACEMENT

Replace the batteries when the display fades

or the meter cannot be switched on.

Remove the battery

cover on the back of

the meter. Insert 2 new

1.5V batteries, while

paying attention to their

polarity.

Batteries should only be replaced in a safe

area using the battery type specified in this

instruction manual.

CALIBRATION

•For best results, calibrate frequently.

•Dip the tip of the electrode (bottom 4 cm/

1½") in pH 7.01 buffer solution at room tem-

perature. Allow the reading to stabilize.

•Use a small screwdriver to adjust the pH7

trimmer until the display reads "pH 7.01".

•Rinse the electrode with water and dip it in

pH 4.01 (or pH 10.01) buffer solution. Allow

the reading to stabilize.

•With a small screwdriver adjust the pH4/10

trimmer until the display reads "pH 4.01" (or

"pH 10.01").

• Calibration is now complete.

ALWAYS CALIBRATE USING FRESH BUFF-

ER SOLUTIONS.

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