Nova-Tech STX-3 Refractometer User Manual
Page 2
Printed in the USA
No. PS062007PSRFSTX3BRL-A
Technical Specifications
STX-3 Salinity Scale Optical Refractometer
The STX-3 from VEE GEE is exceptionally simple to operate and provides quick, precise
measurements. Users can accurately and easily monitor the salinity level of seawater, ponds,
aquariums, fish farms, and holding tanks.
Operation consists of placing 1 or 2 drops of sample on the prism, closing the daylight plate
over the sample, then looking through the focusable, cushioned-rubber eyepiece for the
reading.
The STX-3 features the largest, easiest-to-read scale available with clear, sharp figures, screen
shading and incredible contrast. This significantly enhances overall precision, even when
several different people use the refractometer. The STX-3 also comes with a rubber grip on
the body, which blocks the transmission of hand heat to eliminate temperature errors.
With an automatic temperature range of 10 to 30°C, the STX-3 can be used in outdoor
environments without the need to re-zero. All measurements are automatically compensated
to 20°C. If measurement values shift, zeroing the STX-3 is very simple. The patented “Zero
Ring” eliminates the hassle of using a separate tool during zero calibration. Simply place a
few drops of distilled water on the prism and turn the “Zero Ring” until the scale is zeroed,
and secure the setscrew...that’s it!
The rugged construction of the STX-3 will provide years of reliable use. The optical glass
prism is mounted in an all-metal housing which allows the sample and prism to reach
temperature equilibrium quickly. The non-roll stand ensures that once the STX-3 is placed
on a table or bench top, it won’t be prone to roll off the surface.
Go with a name you can trust for the highest level in clinical instruments...choose VEE GEE.
Cat. No.
PPT
Measuring Range
Specific Gravity
PPT
Resolution
Specific Gravity
PPT
Accuracy
Specific Gravity
Prism
Prism Housing
Temperature Compensation
Compensated Temperature
Temperature Compensation Range
Sample Type
Sample Quantity
Zero Calibration Liquid
Custom Calibration Liquid
Dimensions
Weight
Supplied With
STX-3
43036
0-100‰
1.000-1.070
1‰
0.001
±1‰
±0.001
Optical Glass
Copper Alloy w/ Nickel-Chrome Coating
Automatic
20°C
+10 to +30°C
Transparent, Translucent, & Opaque
>0.1mL
Distilled Water
Liquid Standard
40 (L) x 40 (W) x 185 (H) mm
285g
Carrying Case (1 ea.), Plastic Transfer Pipet (1 ea.),
Instruction Manual (1 ea.)
www.novatech-usa.com
Tel: (866) 433-6682
Fax: (866) 433-6684
Tel: (281) 359-8538
Fax: (281) 359-0084