HANNA instruments Foodcare HI981038 - Bread & Dough PH Tester Manual

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 HI981038 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.)
• HI700684 Electrode cleaning and disinfection solution for bread and dough 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 HI981038 Bread & Dough pH Tester is designed to measure the pH during baking processes 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 shaped electrode is ideal to pierce solid and semisolid samples. The open junction prevents samples from clogging the junction.

Probe Features

Conical Tip

The conical tip allows for direct measurement in whey and semisolid samples.

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 dough sample and internal Ag/AgCl reference. This interface prevents silver from entering the sample and makes it impermeable to clogging, resulting in a 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

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 in storage solution for a minimum of 30 minutes. Rinse with water and blot dry.
• Calibrate the electrode before using. 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.

1. For one or two-point calibration using pH 7.01 buffer solution, follow procedure A.
2. 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.

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.

One-Point Calibration with pH 7.01

Press the ON/OFF button to save the one-point calibration.

"Sto" will be displayed when the calibration is saved.

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

Two-Point Calibration with pH 7.01

Place the tip of the electrode in pH 4.01 buffer. The buffer is automatically recognized, the stability indicator will blink.

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 tags will be displayed.

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", "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 cleaning solution for 20 minutes. Rinse with water and hydrate 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 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 storage solution is not available, 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.

Battery Replacement

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

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

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 each)

Electrode Cleaning Solution

HI700601P General purpose cleaning solution, 20 mL sachet (25 pcs.)

HI700684P Electrode cleaning and disinfection solution for bread and dough 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

Warranty

The HI981038 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. If under warranty, report the model number, date of purchase, serial number and the nature of the problem.

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.

Certification

All Hanna Instruments conform to the CE European Directives. Disposal of Electrical & Electronic Equipment. Disposal of waste batteries.
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.

Documents / Resources

References

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

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download HANNA instruments Foodcare HI981038 - Bread & Dough PH Tester Manual