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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.
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 HI981035 is delivered in a cardboard box and is supplied with:
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.
The HI981035 Sushi pH Tester is designed to measure the pH of sushi rice 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 flat tip of the pH electrode provides optimal contact between the rice and the sensor. The pH electrode has an open junction design and utilizes a non-flowing gelled reference electrolyte. The flat tip allows the pH electrode to equilibrate quickly and reproducibly.
The flat tip provides optimal surface contact for sushi rice pH measurements and for surfaces that cannot be penetrated.
The open junction design uses a solid gel interface between the sushi rice sample and internal Ag/AgCl reference. This interface prevents silver from exiting the junction and makes it impermeable to clogging, resulting in a fast response and stable reading. This design allows for smaller sample sizes as there is no junction to submerge.
Rugged and resilient, the titanium body of the probe works as an electronic shield protecting against interferences from electrical noise or humidity. The titanium body is virtually unbreakable, offering protection from accidental breakage.
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 | 51 x 160 x 21 mm (2.0 x 6.3 x 0.9") |
Weight | 57 g (2.0 oz.) |
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.
From measurement mode, press and hold the ON/OFF button until "CAL" is displayed.
Note: It is recommended to calibrate the electrode with buffers at the temperature it will be used at.
Procedure A
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.
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.
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".
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.
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.
Please read the information below, to ensure the highest possible accuracy:
Note: Never immerse the tester over the maximum immersion level.
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.
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.) |
HI700683P | Cleaning solution for sushi, 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 |
HI70300S | Electrode storage solution, 30 mL dropper |
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download Hanna Instruments Foodcare HI981035 - Sushi PH Tester Manual
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