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SKU HI83749-02 Category

Portable Turbidity Meter and Bentonite Monitoring - HI83749

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Wines with low phenol contents, such as rosé, light reds and whites should be checked for protein stability before bottling. Hanna offers a quick test meter to verify the risk of future protein haze formation If protein instability is detected, a subsequent test can help define the right amount of bentonite to be added for improving protein stability. It is important not to overdose bentonite to avoid stripping wine flavor, body, and significant loss of color, especially in young red wines. Moreover, adding only the necessary amount of bentonite to obtain the desired protein stability also saves costs.

• GLP Features
    Meets Good Laboratory Practices
• Backlight
    Backlit LCD
• Connectivity
    PC interface via USB

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5 in stock

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The HI 83749 measures turbidity of samples from 0.00 to 1200 NTU Nephelometric Turbidity Units) and is USEPA compliant. In the USEPA measurement mode the instrument rounds the readings to meet USEPA reporting requirements.

Bentonite Monitoring

Fast Tracker™

The HI83749 is equipped with Fast Tracker™ Tag Identification System (T.I.S.) that makes data collecting and management simpler than ever. Fast Tracker™ allows users to record the time and location of a specific measurement or series of measurements using iButton® tags near sampling points for quick and easy readings. Each iButton® tag contains a computer chip with a unique identication
code encased in stainless steel.




0.00 to 1200 NTU

Range Selection



0.01 (0.00 to 9.99 NTU); 0.1 (10.0 to 99.9 NTU); 1 (100 to 1200 NTU)


±2% of reading plus 0.05 NTU


±1% of reading of 0.02 NTU, whichever is greater.

Stray Light

< 0.05 NTU

Light Source

tungsten filament lamp

Light Detector

silicon photocell


ratio nephelometric method


60 x 90 mm backlit LCD


two, three or four points

Log Memory 

200 records

Serial Interface

RS 232 or USB 1.1


0 to 50°C (32 to 122°F); max 95% RH non-condensing


1.5V AA batteries (4) / 12 VDC adapter

Auto off

after 15 minutes of non-use

Auto off

after 15 minutes of non-use


224 x 87 x 77 mm (8.8 x 3.4 x 3.0”)


512 g (18.0 oz.)

Ordering information

HI83749-02 (230V) is supplied with iButton® tags with tag
holders (5), sample cuvettes and caps (6), calibration cuvettes (4), bentocheck reagent,
silicone oil (HI98703-58), 1000 µL automatic pipette with two tips and instructions
sheet, 25 mL glass vials with caps (4), 1 mL syringe with two tips, funnel, filter paper (25),
cuvette cleaning cloth, 12 VDC adapter, batteries, instructions and rugged carrying case.

Additional Informations

Additional information



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