User Guide

ManualsBrandsHanna Instruments ManualsMeasuring instrumentsHI 981408

CAL

ON/OFF

5.8

3cm

(1¼“)

pH ELECTRODE CONNECTION & MAINTENANCE

In order to protect pH against

vapors and humidity, the DIN connector is

shielded behind a waterproof sheath.

• Slide the protective sheath down. Con-

nect the HI 1219 pH electrode to the

DIN connector and then slide the protective sheath back

up all the way up to the pH

casing. To

ensure maximum protection, make sure the connector is

completely covered.

• Do not be alarmed if white crystals appear around the

electrode protective cap. This is normal with pH elec-

trodes and they dissolve when rinsed with water.

• When not in use, rinse the electrode with water to

minimize contamination and store it with a few drops of

storage (HI 70300) or pH 7 (HI 7007) solution in the

protective cap. Always replace the protective cap after use.

DO NOT USE DISTILLED OR DEIONIZED WATER FOR

STORAGE PURPOSES.

• If the electrode has been left dry, soak the tip in a

storage (HI 70300) or pH 7 (HI 7007) solution for at

least one hour to reactivate it.

• To minimize clogging and provide longer life for the pH

electrode, it is recommended to clean the electrode

monthly. Immerse the tip of the electrode in HI 7061

cleaning solution for ½ hour, then rinse it with tap

water and recalibrate the meter

For better accuracy, frequent calibration of the instrument is

recommended. In addition, the instrument must be recali-

brated whenever:

a) The pH electrode is replaced.

b) After testing aggressive chemicals.

c) Where high accuracy is required.

d) At least once a month.

CALIBRATION PROCEDURE

• Open a pH 7.01 sachet.

• Turn the meter on.

• Remove the protective cap from the

electrode, rinse the tip and immerse it

in the pH 7.0 buffer solution.

• Stir gently and then wait until the

reading stabilizes.

• Adjust the “CAL” dial until the LCD

shows pH 7.0.

The pH calibration is now complete.

Note: Instead of pH 7.0, other pH buffers such as pH 4.0

can also be used to calibrate the meter closer to the

working range.

CALIBRATIONCALIBRATION

CALIBRATION

CAL

ON/OFF

7.0

pH 7.01

BUFFER SOLUTION

20 mL sacket

HI 70007

CE DECLARATIONCE DECLARATION

CE DECLARATION

OF CONFORMITYOF CONFORMITY

OF CONFORMITY

DECLARATION OF CONFORMITY

Hanna Instruments Srl

Via E.Fermi, 10

35030 Sarmeola di Rubano (PD)

ITALY

herewith certify that the pH meter

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

Electrostatic Discharge

RF Radiated

Fast Transient

Radiated, Class B

Date of Issue: 26-10-1999

D.Volpato - Engineering Manager

On behalf of

Hanna Instruments S.r.l.

HI 981408

IEC 801-2

IEC 801-3

IEC 801-4

EN 55022

EN 61010-1 Electrical Safety

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 unaccept-

able interference to radio and TV equipment.

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

this glass bulb at all times. During operation, ESD wrist straps should be worn to avoid possible

damage to the electrode by electrostatic discharges.

Any variation introduced by the user to the supplied equipment may degrade the instrument’s

EMC performance.

To avoid electrical shock, do not use this instrument when voltage at the measurement surface

exceeds 24 VAC or 60 VDC. To avoid damage or burn, do not perform any measurement in

microwave ovens.

ACCESSORIESACCESSORIES

ACCESSORIES

HI 70004P pH 4.01 solution, 20 mL sachet (25 pcs)

HI 70007P pH 7.01 solution, 20 mL sachet (25 pcs)

HI 7004M pH 4.01 solution, 230 mL bottle

HI 7007M pH 7.01 solution, 230 mL bottle

HI 7061M Electrode cleaning solution, 230 mL bottle

HI 77400P pH 4 & 7 solutions, 20 mL sachet (5 each)

ISTR981408 10/99PRINTED IN PORTUGAL

Note: the electrode should be submerged at least 3 cm

(1¼”) in the solution.

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

CAL

ON/OFF

5.8

CAL

ON/OFF

5.8

TAKING pH MEASURE-

MENTS

• Turn the meter on by

pushing the “ON/OFF”

button.

• Remove the protective cap

from the pH electrode and

immerse it’s tip in the

sample.

• Allow the reading to stabi-

lize and note the pH value

on the LCD.

BATTERY REPLACEMENTBATTERY REPLACEMENT

BATTERY REPLACEMENT

When the batteries are weak, the numbers become faint, the

meter does not switch on or can not be calibrated.

To replace the batteries, open the back panel with the help

of a screwdriver and replace both AA type batteries, paying

attention to their polarity.

Batteries should only be replaced in a non hazardous area

using alkaline batteries.

Note: Once the batteries have been replaced, recalibrate the

meter.