HANNA HI981032 Cheese pH Tester Instruction Manual

HANNA HI981032 Cheese pH Tester

Product Information

The HI981032 Cheese pH Tester is a handheld device designed for measuring the pH level in cheese products. It is manufactured by Hanna Instruments, a leading company in the field of analytical instrumentation. The tester provides accurate and reliable pH measurements, ensuring the quality and safety of cheese products.

Features:

• Auto-Off Clear Calibration: This allows you to set an auto-off timer or disable the auto-off feature.
• User Calibration: Provides the option to calibrate the tester according to specific requirements.
• Err Message: Indicates the need for probe cleaning if displayed during calibration.
• Battery Indicator: Notifies low battery level and displays an error message when the battery is depleted.
• Care & Maintenance: Guidelines for proper care and maintenance of the tester.
• Accessories: pH buffer solutions, electrode cleaning solutions, and electrode storage solutions are available for optimal performance.
• Battery Replacement: Instructions for replacing the CR2032 lithium-ion battery.
• Warranty: Information about the product warranty.

Certification:
The Hanna Instruments HI981032 Cheese pH Tester meets industry standards and is certified for accuracy and performance. Hanna Instruments reserves the right to make design modifications without prior notice.

Warranty:
The HI981032 Cheese pH Tester is covered by a warranty provided by Hanna Instruments. Please refer to the warranty terms and conditions for more information.

Recommendations for Users:
Before using the product, ensure its suitability for your specific application and environment. Any modifications made to the tester may affect its performance. Do not use or store the tester in hazardous environments for your safety and the safety of the tester.

Contact Information:
For more information about Hanna Instruments and its products, visit www.hannainst.com. For sales inquiries, email sales@hannainst.com. For technical support, contact your local Hanna Instruments Office or email tech@hannainst.com.

Product Usage Instructions

Auto-Off Clear Calibration:

1. From measurement mode, press and hold the ON/OFF button.
2. The LCD will show “OFF, CAL” followed by the default setting (d08, 8 minutes).
3. Release the ON/OFF button.
4. A single press on the ON/OFF button will change the auto-off timer to d60 (60 minutes).
5. To disable the auto-off feature, press the ON/OFF button again. The LCD will show “d–“.
6. Press and hold the ON/OFF button to exit.

Clearing User Calibration:

1. From calibration mode, press and hold the ON/OFF button.
2. The LCD will show “CLr”.

Err Message:
In calibration mode, if the probe is in the correct buffer solution and the Err message is displayed, follow these steps:

1. Soak the probe in the cleaning solution for 20 minutes.
2. Rinse the probe with water.
3. Hydrate the electrode in storage solution for a minimum of 30 minutes.
4. Proceed with calibrating the tester.

Battery Indicator:
When the battery level is low, the tag on the LCD will blink. When the battery is depleted, the Erb message is displayed, and the tester powers off.

Care & Maintenance:
Ensure that the tester is not immersed beyond the maximum immersion level. Follow the provided guidelines for proper care and maintenance of the tester to ensure accurate and reliable measurements.

Battery Replacement:

1. To change the CR2032 lithium-ion battery, turn the battery cover located on the back of the tester counterclockwise to unlock.
2. Remove the cover and replace the battery with the positive (+) side facing out.
3. Note: Only use the battery type specified in the manual. Dispose of old batteries according to local regulations.

Dear Customer,
Thank you for choosing a Hanna Instruments product. 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 HI981032 is delivered in a cardboard box and is supplied with:

• HI70004 pH 4.01 buffer solution, 20 mL sachet (2 pcs.)
• HI70007 pH 7.01 buffer solution, 20 mL sachet (2 pcs.)
• HI700642 Cleaning solution for cheese deposits, 20 mL sachet (2 pcs.)
• HI9072 Electrode storage solution, 13 mL dropper
• CR2032 3V Lithium-ion battery
• 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

The HI981032 Cheese pH Tester is designed to measure and monitor the pH of cheese during the main processing steps of cheese manufacturing and ensure it meets the food-hygiene and Hazard Analysis Critical Control Point (HACCP) regulations.

• It features a single-button operation system and is easy to use. It has a compact and waterproof casing and automatic pH calibration at one or two points.
• All readings are automatically compensated for temperature variations with a built-in temperature sensor.
• The conical tip allows measurements to be taken directly in solid or semisolid samples.

Probe Features

Conical Tip
The conical tip allows for easy penetration into whey and semisolids which is needed when wanting to take a direct measurement in cheese.

Specialized Glass Formulation
Specialized low-temperature (LT) pH glass ensures fast stabilization and accurate results at lower temperatures.

Open Junction Reference
The open junction design consists of a solid gel interface between the sample and internal Ag/AgCl reference. This interface prevents silver from entering the sample and makes it impermeable to clogging, resulting in fast response and stable reading.

Polyvinylidene Fluoride (PVDF) Body
PVDF is a food-grade plastic that is resistant to most chemicals and solvents, including sodium hypochlorite, it is also resistant to fungal growth. It has high abrasion resistance, mechanical strength, and resistance to ultraviolet.

Specifications

• Range 0.00 to 12.00 pH
• Resolution 0.01 pH
• Accuracy ±0.05 pH
• Calibration Automatic, one or two-point
• Temperature compensation Automatic, 0 to 50 °C
• Electrode Built-in probe for specific application
• Battery type CR2032 Lithium-ion (included)
• Battery life Approximately 800 hours of continuous use
• Auto-off 8 minutes, 60 minutes, or disabled
• Environment 0 to 50 °C (32 to 122 °F); RH 95% max
• Dimensions 50 x 129 x 21 mm (2 x 5.1 x 0.9“)
• Weight 42 g (1.48 oz.)

Functional Description & LCD Display

Preparation

• Remove the protective cap. Do not be alarmed if salt deposits are present. Rinse the probe with water and blot dry.
• If the glass and/or junction are dry, soak the electrode (bottom 4 cm / 1.5“) in storage solution for a minimum of 30 minutes. Rinse with water and blot dry.
• Calibrate the electrode before use. For best results is recommended to recalibrate periodically.

Storage

• To ensure a quick response, the glass tip and junction should be kept moist.
• Replace the protective cap with a few drops of storage solution when not in use. Do not store the electrode in distilled or deionized water.

Operation

Press the ON/OFF button to turn the tester on. The tester displays all LCD segments for a few seconds. The tester will enter measurement mode, the current reading and calibrated buffers will be shown.

Calibration

From measurement mode, press and hold the ON/OFF button until “CAL” is displayed.

• For one or two-point calibration using pH 7.01 buffer solution, follow procedure A.
• For one-point calibration using pH 4.01 buffer solution, follow procedure B.

Note:
It is recommended to calibrate the electrode with buffers at the temperature it will be used at.

A. One or Two-Point Calibration with pH 7.01

• When “7.01” is displayed, place the tip of the electrode in pH 7.01 buffer.
• When the reading is stable, the stability icon will disappear.
• When “4.01” is displayed, follow the procedure to the right for a one or two-point calibration.
• Press the ON/OFF button to save the one-point calibration.
• Place the tip of the electrode in pH 4.01 buffer. The buffer is automatically recognized, and the stability indicator will blink.
• “Sto” will be displayed when the calibration is saved.
• Wait until the measurement is stable and the stability indicator disappears. “Sto” will be displayed when the calibration is saved.
• The tester will return to measurement mode and the calibration tag will be displayed.
• The tester will return to measurement mode and the calibration tags will be displayed.

B. One-Point Calibration with pH 4.01

• When “7.01” is displayed, place the tip of the electrode in pH 4.01 buffer. The buffer value will be recognized automatically and “4.01” will be displayed.

• When the reading is stable, the stability indicator will disappear.“Sto” will be displayed when the calibration is saved.

• The tester will return to measurement mode and the calibration tag will be displayed.

• Auto-Off
  From measurement mode, press and hold the ON/OFF button. The LCD will show “OFF”, and “CAL” followed by “d08” (default setting, 8 minutes). Release the ON/OFF button. A single press on the ON/OFF button will change the auto-off timer to “d60” (60 minutes). To disable the auto-off feature press the ON/OFF button again, LCD will show “d–“. Press and hold to exit.

• Clear Calibration
  To clear the user calibration and restore the tester to factory default. From calibration mode, press and hold the ON/OFF button, the LCD will show “CLr”.

• “Err” Message
  In calibration mode, if the probe is in the correct buffer solution and the “Err” message is displayed, the probe should be cleaned. Soak the probe in the cleaning solution for 20 minutes. Rinse with water and hydrate the electrode in storage solution for a minimum of 30 minutes before calibrating.

• Battery Indicator
  When the battery level is low, the tag on the LCD will blink. When the battery is depleted the “Erb” message is displayed and the tester is powered off.

Care & Maintenance

Please read the information below, to ensure the highest possible accuracy:

• Fresh buffer should be used for each calibration, once the sachets are opened the buffer value can change over time.
• For improved accuracy, a two-point calibration is recommended.
• If the electrode is slow or sluggish, soak it in the cleaning solution for 20 minutes. Rinse with water and hydrate the electrode in storage solution for a minimum of 30 minutes before calibrating.
• If measurements are taken successively, rinse the probe thoroughly in distilled or deionized water to eliminate cross-contamination.
• When not in use, add a few drops of storage solution to the protective cap to keep the glass tip and the junction hydrated. If a storage solution is not available, a pH 4.01 or pH 7.01 buffer can be used. Never store the probe in distilled or deionized water.

Note: Never immerse the tester over the maximum immersion level.

Accessories

pH Buffer Solution

• HI70004P pH 4.01 buffer solution, 20 mL sachet (25 pcs.)
• HI70007P pH 7.01 buffer solution, 20 mL sachet (25 pcs.)
• HI77400P pH 4.01 & 7.01 buffer solution, 20 mL sachet (10 pcs., 5 ea.)

Electrode Cleaning Solution

• HI700601P General purpose cleaning solution, 20 mL sachet (25 pcs.)
• HI700641P Cleaning and disinfection solution for dairy products, 20 mL sachet (25 pcs.)
• HI700642P Cleaning solution for cheese deposits, 20 mL sachet (25 pcs.)

Electrode Storage Solution

• HI70300L Electrode storage solution, 500 mL
• HI70300M Electrode storage solution, 230 mL
• HI9072 Electrode storage solution, 13 mL dropper

Battery Replacement

To change the CR2032 lithium-ion battery, turn the battery cover, located on the back of the tester, counterclockwise to unlock. Remove the cover and replace the battery with a positive (+) side facing out.

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

Warranty

The HI981032 is warranted for a period of 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. Damage due to accidents, misuse, tampering, or lack of prescribed maintenance is not covered. If service is required, contact your local Hanna Instruments Office. If under warranty, report the model number, date of purchase, serial number, and the nature of the problem. 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 (RGA) number from the Technical Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection.

Recommendations for Users
Before using this product, make sure it is entirely suitable for your specific application and for the environment in which it is used. Any variation introduced by the user to the supplied equipment may degrade the tester’s performance. For your and the tester’s safety do not use or store the tester in hazardous environments.

Certification

All Hanna Instruments conform to the CE European Directives. Disposal of Electrical & Electronic Equipment. The product should not be treated as household waste. Instead, hand it over to the appropriate collection point for the recycling of electrical and electronic equipment which will conserve natural resources. Disposal of waste batteries. This product contains batteries, do not dispose of them with other household waste. Hand them over to the appropriate collection point for recycling. Ensuring proper product and battery disposal prevents potential negative consequences for the environment and human health. For more information, contact your city, your local household waste disposal service, the place of purchase, or go to www.hannainst.com.

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

www.hannainst.com.

References

• pH Meters, Photometers, Titrators, Controllers - Hanna Instruments

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