Hanna Instruments HI98129, HI98130 Manual and Calibrate Instructions Video

Introduction

Please read this instruction manual carefully before using the tester. For more information about Hanna Instruments and our products, visit www.hannainst.com or e-mail us at sales@hannainst.com.
For technical support, contact your local Hanna Instruments Office or e-mail us at tech@hannainst.com.

Preliminary Examination

Remove the tester and accessories from the packing material and examine it carefully. If you require any further information, please contact Hanna Instruments technical support team at tech@hannainst.com.

Each HI98129 is delivered in a cardboard box and is supplied with:

• HI70004 pH 4.01 buffer solution, 20 mL sachet (1 pc.)
• HI70007 pH 7.01 buffer solution, 20 mL sachet (1 pc.)
• HI70300N Storage solution for pH & ORP electrodes, 20 mL sachet (1 pc.)
• HI70031 1413 µS/cm conductivity standard, 20 mL sachet (1 pc.)
• HI70032 1382 ppm TDS standard, 20 mL sachet (1 pc.)
• HI700601 pH & ORP electrode cleaning solution, 20 mL sachet (1 pc.)
• HI73127 pH electrode
• HI73128 Electrode removal tool
• 1.5V batteries (4 pcs.)
• Instrument quality certificate
• Instruction manual

Each HI98130 is delivered in a cardboard box and is supplied with:

• HI70004 pH 4.01 buffer solution, 20 mL sachet (1 pc.)
• HI70007 pH 7.01 buffer solution, 20 mL sachet (1 pc.)
• HI70300N Storage solution for pH & ORP electrodes, 20 mL sachet (1 pc.)
• HI70030 12880 µS/cm conductivity standard, 20 mL sachet (1 pc.)
• HI70038 6.44 ppt TDS standard, 20 mL sachet (1 pc.)
• HI700601 pH & ORP electrode cleaning solution, 20 mL sachet (1 pc.)
• HI73127 pH electrode
• HI73128 Electrode removal tool
• 1.5V batteries (4 pcs.)
• Instrument quality certificate
• Instruction manual
  Note: Save all packing material until you are sure that the tester works correctly. Any damaged or defective item must be returned in its original packing material with the supplied accessories.

General Description & Intended Use

HI98129 & HI98130 are compact pH, EC/TDS and temperature testers. They feature a two-buttons operation system and are easy to use. The compact and waterproof casing is designed to float if accidentally dropped in water. The testers measure temperature in both °C and °F. All pH and EC/TDS measurements are temperature compensated automatically (ATC). EC/TDS measurements have user-selectable EC/TDS conversion factor (CONV) and temperature compensation coefficient (ß). The testers display a stability tag that will disappear once the reading has stabilized.
Battery level and low-battery indicator are clearly displayed on the LCD to alert the user in the event that low battery power could adversely affect readings.
BEPS (Battery Error Prevention System) Testers will automatically shut off if there is not enough power to get an accurate measurement.
pH Probe: HI98129 & HI98130 are supplied together with HI73127 pH replaceable electrode with a stainless steel round connector and extendable cloth junction. This design has no pins to line up or that can break.
Temperature Sensor: The stainless steel temperature sensor facilitates faster and more accurate temperature measurement.

Specifications

Functional Description

LCD Display

Operational Guide

Turning the Tester ON / OFF
Press and hold /MODE. All LCD segments will be displayed for a few seconds followed by battery life percentage indicator. To turn the tester off, from measurement mode, press /MODE. "OFF" will be displayed on the second LCD line and then the tester will turn off.

HOLD Mode
From measurement mode, press and hold SET/HOLD until "HOLD" is displayed. pH, EC/TDS or temperature readings will be frozen on the LCD. Press either buttons to resume measurement mode.

Setup

Setup mode allows the selection of temperature unit and pH buffer set. To enter the setup mode, select pH mode and press /MODE until "TEMP" and the current temperature unit are displayed (e.g. "TEMP °C"). Then:

pH Calibration & Measurement

It is recommended to calibrate the tester frequently, especially if high accuracy is required. More frequent calibrations may be required depending on the type of sample being tested. The tester should be recalibrated:

From measurement mode, press and hold /MODE until "CAL" is displayed. The tester enters calibration mode and displays "pH 7.01 USE" or "pH 6.86 USE", if NIST buffer was selected. Buffer value will be displayed on the first LCD line and "REC" message will be displayed on the second line. If used buffer was not valid, "USE" message will be displayed for 12 seconds and replaced by "WRNG" indicating measured sample is not valid.

• For one-point calibration using pH 4.01, 10.01 or 9.18 buffer solution, once the reading has stabilized, the tester automatically accepts the calibration point. Accepted buffer point and "OK 1" message are displayed and then the tester returns to measurement mode.
• For one-point calibration using pH 7.01 (or 6.86) buffer solution, press /MODE after calibration point has been accepted. The tester will display "pH 7.01" (or "pH 6.86") and "OK 1" and then return to measurement mode.
• For a two-point calibration using pH 7.01 (or pH 6.86) buffer solution, after the first calibration point has been accepted, "pH 4.01 USE" will be displayed for 12 seconds (unless a valid buffer is recognized).
• If valid buffer solution is recognized (pH 4.01, 10.01 or 9.18), the calibration point is accepted and the accepted value and "OK 2" are displayed. The tester then returns to measurement mode.
• If no valid buffer solution is recognized, "WRNG" message is displayed.
  Note: When the calibration procedure is completed, the "CAL" tag is turned on..

Exiting Calibration & Resetting Default Values

Measurement
Use SET/HOLD to select pH mode. Place the electrode in the solution to be tested while stirring gently. The measurement should be taken after the stability tag has disappeared. The pH value is displayed on the first LCD line and the temperature on the second LCD line.

Note: Before taking any pH measurement make sure the tester has been calibrated ("CAL" tag is displayed).

EC/TDS Calibration & Measurement

Calibration Procedure

Measurement
Use SET/HOLD to select either EC or TDS mode. Place the electrode in the solution to be tested while stirring gently. Use plastic beakers to minimize any electromagnetic interferences. The measurement should be taken after the stability tag has disappeared. The EC/TDS value is displayed on the first LCD line and the temperature on the second LCD line.

Note: Before taking any measurement make sure the tester has been calibrated ("CAL" tag is displayed).

Changing EC/TDS Conversion Factor (CONV) & Temperature Compensation Coefficient ß (BETA)

Maintenance

Please read the information below to ensure the highest possible accuracy.

• Fresh buffer solution should be used for each calibration.
• For improved accuracy a two-point calibration is recommended.
• If measurements are taken successively, rinse the probe thoroughly in distilled or deionized water to eliminate cross-contamination.
• Clean the electrode monthly using pH and EC cleaning solution. Keep the electrode in HI7061
• General purpose cleaning solution for 30 minutes and rinse the probe thoroughly with water.
• When not in use, add a few drops of HI70300 Storage solution to the protective cap. Never store the probe in distilled or deionized water.

Electrode Replacement
Use supplied removal tool (HI73128) to replace the pH electrode.

Insert the tool into the probe cavity.

Rotate the tool counterclockwise.

Pull the electrode out by using the other side of the tool. Insert a new pH electrode following the above instructions in reverse order.

Battery Replacement

Battery life percentage indicator is displayed at power on. If the battery level drops below 5%, the symbol lights up indicating that the batteries should be replaced soon.
If the battery level is not adequate to guarantee an accurate reading, the tester automatically turns off.
To replace the batteries, follow the next steps:

1. Turn OFF the tester.
2. Remove the four screws on the top of the tester to open the battery compartment (figure 1).
   
   
3. Remove the old batteries.
4. Insert four new 1.5V AA batteries in the battery compartment while paying attention to the correct polarity (figure 2).
   
   
5. Close the battery compartment using the four screws.

Note: Only use the battery type specified in the manual. Old batteries should be disposed in accordance with local regulations.

Accessories

Recommendations for Users

Before using this tester, make sure that it is entirely suitable for your specific application and the environment in which it is used. The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid touching the glass bulb at all times. Any variation introduced by the user to the supplied equipment may degrade the tester's performance. For yours and the tester's safety do not use or store the tester in hazardous environments.