Hanna Instruments HI 981408 User Manual

Instruction Manual

(HI 981408)

pH Stick Meter

with a user-replaceable

electrode

5.8

CAL

ON/OFF

This Instrument is in

http://www.hannainst.com

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

pH is warranted for one year against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement 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 purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase.

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.

Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.

Compliance with the CE Directives

Dear Customer, Thank you for choosing a Hanna product. This manual will

provide you with the necessary information for a correct operation. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.

This instrument is in compliance with the

directives

EN 50081-1 and EN 50082-1.

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it carefully. If any damage has occurred during shipment, immediately notify your Dealer or the nearest Hanna Customer Service Center.

The meter is supplied with:

• HI 1219 pH electrode double junction L: 240 mm with DIN connector;

• 2 batteries AAx1.5 V type (inside the meter)

• pH 7.01 buffer solution 20 mL

Note: Conserve all packing material until the instrument

has been observed to function correctly. Any defective item must be returned in its original packing.

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

pH is a pH meter specially designed to meet the needs of operators in hydroponics and greenhouses.

The housing has been completely sealed against vapors and humidity. It also floats so that it can be quickly retrieved if accidentally dropped in the tank.

The HI 1219 rugged pH electrode supplied with the meter is constructed using the latest double junction technology and a HANNA exclusive replenishable fiber junction. The electrode can be simply replaced and the rubber sleeve protects the connector against humidity and spills. It will run for more than 2000 hours continuously with two AA type batteries.

Measurements are highly accurate and the meter can be calibrated in one point.

• Ideal for hydroponics and greenhouses

• Waterproof housing floats for quick retrieval

• Simple one point calibration

• Renewable junction with pull out salt-bridge

• Long battery life.

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

1. Molded eye

2. Liquid Crystal Display

3. pH calibration dial

4. ON/OFF button

5. DIN connector

6. Protective sheath

7. HI 1219 pH electrode

8. Electrode protective cap

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

Range 0.0 to 14.0 pH Resolution 0.1 pH Accuracy (@ 25°C/77°F) ±0.2 pH Typical EMC Deviation ±0.2 pH Calibration Manual through frontal dial for offset Electrode HI 1219 pH electrode

L: 240mm with DIN connector Batteries 2 x AA Alkaline type

(2000 hours of continuous use)

Dimensions 86 x 94 x 33 mm (3.4 x 3.7 x 1.3”)

meter only

Weight 150 g (5.3 oz.) meter only

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

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. Connect the HI 1219 pH electrode to the DIN connector and then slide the protective sheath back up all the way up to the pH ensure maximum protection, make sure the connector is completely covered.

5.8

CAL

ON/OFF

• Do not be alarmed if white crystals appear around the electrode protective cap. This is normal with pH electrodes 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

CAL

casing. To

5.8

ON/OFF

TAKING pH MEASUREMENTS

• 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 stabilize and note the pH value on the LCD.

3cm (1¼“)

Note: the electrode should be submerged at least 3 cm

(1¼”) in the solution.

BATTERY REPLACEMENTBATTERY REPLACEMENT

BATTERY REPLACEMENT

BATTERY REPLACEMENTBATTERY 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.

5.8

CAL

ON/OFF

CALIBRATIONCALIBRATION

CALIBRATION

CALIBRATIONCALIBRATION

For better accuracy, frequent calibration of the instrument is recommended. In addition, the instrument must be recalibrated 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.

7.0

CAL

ON/OFF

pH 7.01

BUFFER SOLUTION

20 mL sacket

HI 70007

CE DECLARATIONCE DECLARATION

CE DECLARATION

CE DECLARATIONCE DECLARATION

OF CONFORMITYOF CONFORMITY

OF CONFORMITY

OF CONFORMITYOF 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:

IEC 801-2 IEC 801-3 IEC 801-4 EN 55022 EN 61010-1 Electrical Safety

Date of Issue: 26-10-1999

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 unacceptable 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.

HI 981408

Electrostatic Discharge RF Radiated Fast Transient Radiated, Class B

D.Volpato- Engineering Manager

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

On behalf of

Hanna Instruments S.r.l.

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