1. UR24 Process Refractometer

2. UR24 Refractometer

3. UR24 - Optical Path 85 Brix 10 Brix 0 Brix 1 - LED SOURCE3 4 5 6
1 - LED SOURCE
2 - BICONVEX LENS
3 - ENTRANCE LENS
4 - PRISM
5 - EXIT LENS
6 - CCD DETECTOR
85 Brix
10 Brix
0 Brix

4. UR24 - The four basic elements
In order to obtain a refractometric measure need four basic elements:
A light source (LED source)
An optical sensor (CCD sensor)
A well defined optic path (lenses and instrument geometry)
4) A prism made in high nD material 2 1

5. UR24 - Interface detection
Threshold
Derivative

6. UR24 - Technical features
Measurement limits: 0-95 Bx
Measurement range UR24 ST: min 30 Bx, max 95 Bx
Accuracy ST version: 0.5% measurement range (+/ Bx)
Measurement range UR24 H.A.: min 15 Bx, max 95 Bx
Accuracy H.A. version: 0.3% measurement range (+/ Bx)
“User” range on request
Pt100 external temperature sensor (internal on request)
Automatic temperature compensation: -5 °C / 105 °C
Long probe version for boule applications and/or high temperature applications (up to 140 °C)
Analog output: 0-20, 4-20 mA
Serial output: RS422/485
Profibus module on request
Washing/Alarm contact
Hold measure contact
Power supply:
18-36VDC 10W or 12-24VAC 50-60Hz 10VA (AC 115/230V ±10% 50…60Hz 10VA on request)

7. UR24 - Technical features
Sapphire prism
Removable prism-holder
High efficiency LED light source
CCD optical sensor (2048 pixels)
Single board SMD electronics
Serial port software upgrade
Dehydrating cartridge
Interfacing with water proof connector
LCD graphic display
4-keys polyester membrane keypad
3A enclosure on request
Materials in contact with product:
AISI316, sapphire/glass (others on request)
Working pressure: -1 / 15 bar
Weight: 3Kg
Enclosure: stainless steel IP67

8. UR24 Standard

9. UR24 Long Probe with Tri-Clamp at 21mm

10. UR24 Long Probe with Tri-Clamp at 70 mm

11. UR24 Adaptors

12. UR24 - Installation examples
on line
by pass

13. UR24 - Installation examples
pump
on boule

14. Each product has its own optimal speed for prism selfcleaning
UR24 - Special plug for selfcleaning
Each product has its own optimal speed for prism selfcleaning
Changing the clearance height allows to have the optimal cleaning for each product

15. UR24 - Cleaning systems special plug with mechanical cleaner
special plug with washing

16. special plug with mechanical cleaner and washing
UR24 - Cleaning systems
washing on tank
special plug with mechanical cleaner and washing
washing on pipe

17. UR24 - User configuration
Instrument takes into account typical behaviour for nD
% weight/weight nD 16 8 25 33 42 50
1,33
1,38
nD - concentration
nD - temperature nD
1,30
1,40 10 20 30
T (°C)
20% in water
Default configuration: sucrose solution curves

18. UR24 - User configuration
1st STEP: at 20°C fixed temperature find the relationship between the concentration and the refraction index.
2nd STEP: at fixed concentration find the relationship between the corrections, you have to add to the 20°C value and the temperature
Product sample
3rd STEP: transfer data in the UR24 refractometric unit
Termostating
Unit

19. REFRACTION INDEX-CONCENTRATION configuration
UR24 - User configuration
REFRACTION INDEX-CONCENTRATION configuration
Found the relationship between concentration and nD at seven different values of concentration at 20 °C for desired product

20. TEMPERATURE COMPENSATION configuration
UR24 - User configuration
TEMPERATURE COMPENSATION configuration
Measuring the refractive index at three different concentrations at three different temperatures, insert the errors in temperature table (difference between read values of each concentration at that temperature and at 20°C)