Description
Wines with low phenol content such as rosés, light reds and whites should have their protein stability checked before they are bottled. HANNA offers a rapid test to verify the risk of future protein mist formation. If there is protein instability, a subsequent test helps define the amount of bentonite to be added to improve the stability of the protein.
It is important not to overdose the bentonite because if this happens the wine will be tasteless, full-bodied and will have a great loss of color, especially in young red wines. In addition, by adding only the necessary amount of bentonite, the desired protein stability will be obtained and costs will be reduced.
The HI 83749 measures sample turbidity from 0.00 to 1200 NTU (Nephelometric Turbidity Units) and is USEPA compliant. In USEPA measurement mode, the instrument rounds the readings so that they meet the requirements of the USEPA.
Specs:
Range: 0.00 to 9.99 NTU*; 10.0 to 99.9 NTU; 100 to 1200 NTU automatic range selection
Resolution: .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/77°F: ±2% of reading plus 0.05 NTU
Repeatability: ±1% of read plus 0.05 NTU
Diffused Light: < 0.05 NTU
Light Source: Tungsten filament lamp
Light Detector: Silicon Photocell
Method: Nephalometric ratio
Display: 60 x 90 mm backlit LCD
Calibration: two, three or four points
Log Memory: 200 Logs
Interface: RS 232 or USB 1.1
Ambient: 0 to 50°C; max 95% RH non-condensing
Battery Type: 1.5V AA Batteries (4)(Not Included) / VDC12 Adapter
Auto-off: after 15 minutes of non-use
Dimensions: 224 x 87 x 77 mm (8.7 x 3.3 x 3.1″)
Weight: 512 g (17.6 oz.)
