Hanna Instruments HI 983308 User Manual

Instruction Manual

HI 983303, HI 983304, HI983306

HI 983307, HI983308, HI983309

On-line, Waterproof

EC-TDS meters with Alarm

These Instruments are in

http://www.hannainst.com

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

These meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The probes are war- ranted for a period of one year. 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 the correct operation of the meter. 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.

These instruments are in compliance with the 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 meters are supplied with:

• HI 7631/2 EC/TDS probe (HI 983304), HI 7632/2 EC/TDS probe (HI 983307, HI 983308), HI 7634/2 EC/TDS probe (HI 983303, HI 983306, HI 983309);

• Calibration screwdriver;

• 12 VDC power adapter.

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

These instruments are specially designed to meet the needs of simple continuous monitoring of conductivity or TDS.

The housing has been completely sealed against vapors and humidity with IP54 rating.

You can simply hang the meter right above the sample to be tested for continuous measurement.

All the meters come with a probe that compensates for the temperature variation automatically. The probe is easy to clean and requires little maintenance.

You can even select your own setpoint and be alerted of an abnormal situation with a flashing LED alarm. Measurements are highly accurate and the meters can be calibrated at one point. You no longer need to worry about battery changes either: the unit runs without interruption on 12 VDC power supply.

directives

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

1. Molded eye

2. Alarm LED

3. EC or TDS probe

4. 12 VDC power adapter

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

Range 0 to 1990 µS/cm (EC) Resolution 10 µS/cm (EC) Setpoint 200 to 1600 µS/cm (EC) Hysteresis +100 µS/cm (EC) over setpoint Alarm LED blinks when EC value is

Probe HI 7634/2 EC/TDS probe (included)

Range 0.00 to 19.99 µS/cm Resolution 0.01 µS/cm Setpoint 1.00 to 5.00 µS/cm Hysteresis +1.00 µS/cm over setpoint Alarm LED blinks when EC value is

Probe HI 7631/2 EC/TDS probe (included)

Range 0 to 1990 ppm Resolution 10 ppm TDS Factor 0.5 Setpoint 200 to 1600 ppm Hysteresis ±100 ppm around setpoint

5. Power supply connector

6. Calibration trimmer

7. Liquid Crystal Display

HI 983303

100 µS/cm higher than setpoint

HI 983304

1.00 µS/cm higher than setpoint

HI 983306

Alarm LED blinks when TDS value is

outside hysteresis range

Probe HI7634/2 EC/TDS probe (included)

HI 983307

Range 0.00 to 9.99 mS/cm Resolution 0.01 mS/cm Setpoint 0.70 to 3.50 mS/cm Hysteresis ±0.20 mS/cm around setpoint Alarm LED blinks when EC value is

outside hysteresis range

Probe HI7632/2 EC/TDS probe (included)

HI 983308

Range 0.00 to 9.99 ppt Resolution 0.01 ppt TDS Factor 0.5 Setpoint 0.70 to 3.50 ppt Hysteresis ±0.20 around setpoint Alarm LED blinks when EC value is

outside hysteresis range

Probe HI7632/2 EC/TDS probe (included)

HI 983309

Range 0 to 999 ppm Resolution 1 ppm TDS Factor 0.5 Setpoint 0 to 150 ppm Hysteresis none Alarm LED blinks when EC value is

over setpoint

Probe HI7634/2 EC/TDS probe (included)

COMMON SPECIFICATIONS Accuracy (@ 25°C/77°F) ±2% f.s. Typical EMC Deviation ±2% f.s. Temperature Automatic from 5 to 50°C (41 to 122°F)

Compensation with ß=2.4% (HI983304) or

ß=2% (HI983303/6/7/8/9)

Calibration Manual with one trimmer Casing IP54 Power Supply External 12 VDC (included) Dimensions 86 x 94 x 33 mm (3.4 x 3.7 x 1.3”) Weight 150 g (5.3 oz.)

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

TAKING MEASUREMENTS

• Turn the meter on by connecting the 12 VDC power adapter to the meter and to the mains.

• Immerse the EC/TDS probe in the solution, making sure that metal pins are completely submerged.

• The LCD will show the EC or TDS value. Any initial variation may be due to temperature compensation and the fact that the probe is adjusting itself to the new sample. Allow the reading to stabilize and the meter will start continuous monitoring.

ADJUSTING THE SETPOINT

With the EC and TDS meters you can select your own setpoint and be alerted with a visual LED alarm when an abnormal situation arises.

• Unscrew and remove the rear panel and gasket seal to access the MEASURE/SET switch.

• Move the switch to the left (SET Mode).

• With a small screwdriver adjust the setpoint trimmer to display the desired value in the setpoint range specified for you model.

• Make sure the switch is moved back to the right (MEASURE Mode).

• Replace the rear panel and the gasket, ensuring the unit is properly closed.

• Whenever the EC or TDS reading varies by more than the hysteresis specified for your model from the setpoint, the red alarm LED will blink.

PROBE MAINTENANCE

To minimize clogging and provide longer life for the probe, it is recommended to clean it often or at least once a month.

• Immerse the tip of the electrode in HI 7061 Cleaning Solution for one hour.

• If a more thorough cleaning is required, brush the metal pins with very fine sandpaper.

• After cleaning or when not in use, rinse the probe with tap water.

Note: HI 983304 does not need cleaning when used in

pure water applications.

CALIBRATIONCALIBRATION

CALIBRATION

CALIBRATIONCALIBRATION

For the greatest accuracy, frequent calibration of the instrument is recommended.

• Turn the meter on and make sure that the MEASURE/SET switch is on the MEASURE mode.

• Pour a small quantity of calibration solution* in a beaker. If possible, use plastic beakers to minimize any EMC interference.

* 1413µS/cm for HI983303; 1382ppm for HI983306;

5.00 mS/cm for HI983307; 6.44ppt for HI983308; 800ppm for HI983309.

• Immerse the EC/TDS probe in the solution, making sure that metal pins are completely submerged.

Note: in order not to affect the accuracy of

measurements, it is important that probe body does not touch nor stand close to the side walls of the beaker. The tip can lay on the bottom of the beaker.

• Wait for a couple of minutes for thermal equilibrium to be reached.

• Tap the probe gently on the bottom, then shake it while rotating to make sure no air bubbles have remained trapped.

• Adjust the calibration trimmer with the supplied screwdriver until the display shows 1410µS/cm (HI 983303) or 1380ppm (HI 983306) or 5.00mS/cm (HI 983307) or

6.44ppt (HI 983308) or 800ppm (HI 983309).

• The calibration is now complete and the instrument is ready for use.

The instrument should be recalibrated at least once a month and after performing probe cleaning procedure.

Note: HI 983304 does not need calibration when used in

pure water applications.

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

HI 7631/2* EC/TDS “flow thru” probe with ½”NPT thread,

ATC and 2 m (6.6’) cable (HI983304)

HI 7632/2* EC/TDS “flow thru” probe with ½”NPT thread,

ATC and 2 m (6.6’) cable (HI983307/8)

HI 7634/2* EC/TDS “flow thru” probe with ½”NPT thread,

ATC and 2 m (6.6’) cable (HI983303/6/9)

HI 70031P 1,413 µS/cm (EC) calibration solution, 20 mL

sachet (25 pcs)

HI 70032P 1,382ppm (TDS) calibration solution, 20 mL

sachet (25 pcs)

HI 70038P 6.44 ppt (TDS) calibration solution, 20 mL

sachet (25 pcs)

HI 70039P 5.00 mS/cm (EC) calibration solution, 20 mL

sachet (25 pcs)

HI 70080P 800 ppm (TDS) calibration solution, 20 mL HI 70031L 1,413 µS/cm(EC) calibration sol., 460 mL bottle HI 7039L 5.00 mS/cm(EC) calibration sol., 460 mL bottle HI 7061L Electrode cleaning solution, 460 mL bottle HI 710005 12 VDC power adapter, US plug HI 710006 12 VDC power adapter, European plug HI 710012 12 VDC power adapter, Australian plug HI 710013 12 VDC power adapter, Southern Africa plug HI 710014 12 VDC power adapter, UK plug

* To be replaced only by authorized service technicians

CE DECLARATIONCE DECLARATION

CE DECLARATION

CE DECLARATIONCE DECLARATION

OF CONFORMITYOF CONFORMITY

OF CONFORMITY

OF CONFORMITYOF CONFORMITY

Recommendations for Users

Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment. The metal band at the end of the probe is sensitive to electrostatic discharges. Avoid touching this metal band at all times. During operation, ESD wrist straps should be worn to avoid possible damage to the probe 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 these instruments when voltages at the measurement surface exceed 24 VAC or 60 VDC. Use plastic beakers to minimize any EMC interferences. To avoid damages or burns, do not perform any measurement in microwave ovens.

ISTR9833R2 07/98PRINTED IN PORTUGAL