HANNA HI 83749 Portable Turbidity Meter and Bentonite Monitoring

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HANNA HI 83749
Portable Turbidity Meter and Bentonite Monitoring

DESCRIPTION :
GLP Features
Fast Trackerâ„¢ with iButtonâ„¢ tags
Continuous measurement mode; Verifies the settling rate of suspended matter.
Signal Average ( AVG) mode; Accumulates multiple readings giving a final average value.
Backlit LCD
USB

Wines with low phenol contents, such as rosé , light reds and whites should be checked for protein stability before bottling. HANNA is offers a quick test 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.

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.

Range 0.00 to 9.99 NTU; 10.0 to 99.9 NTU; 100 to 1200 NTU automatic range selection
Resolution 0.01 NTU from 0.00 to 9.99 NTU; 0.1 NTU from 10.0 to 99.9 NTU; 1 NTU from 100 to 1200 NTU
Accuracy @ 25° C ± 2% of reading plus 0.05 NTU
Repeatability ± 1% of reading plus 0.05 NTU
Stray Light < 0.05 NTU
Light Source tungsten filament lamp
Light Detector silicon photocell
Method Ratio Nephelometric
Calibration two, three or four points
Log Memory 200 records
PC Connectivity RS232 or USB 1.1
Environment 0 to 50° C; max 95% RH non-condensing
Power Supply 1.5V AA batteries ( 4) / 12 VDC adapter
Auto-off after 15 minutes of non-use
Dimensions / Weight 224 x 87 x 77 mm ( 8.7 x 3.3 x 3.1" ) / 512 g ( 17.6 oz.)

ORDERING INFORMATION :
HI 83749-02 ( 230V) and HI 83749-03 ( AUS plug) are supplied with sample cuvettes and caps ( 6) , calibration cuvettes ( HI 83749-11) ( 4) , bentocheck reagent ( HI 83749-0) and silicone oil ( HI 93703-58) , 1000 µ L 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.

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