|
|
In-Line Industrial Process Refractometers |
|
|
Schmidt + Haensch Process Refractometer |
|
 |
 |
Features
|
|
|
Working
Principle
The light from an LED source is transmitted by a fiber optic onto one side of a measuring prism and internally reflected to the interface of the prism and the sample liquid. A portion of this light beam is reflected back onto the opposite side of the prism at an angle which depends on the refractive index of the liquid at the interface. The position of this reflected beam, as it exits the prism, changes with the angle of reflection (which depends on the refractive index of the sample ). A linear diode array is used to accurately detect the varying position of the reflected beam and this position is calibrated with respect to refractive index. As there are no moving parts, only precise optical and electronic elements, the calibration is very stable, repeatable and accurate. |
 |
|
Process Refractometer
Configurations THE IPR refractometers all have the same measurement performance but they are available in two different electronic configurations IPR2 and IPR3. IPR2 is designed to work with a central control box which can monitor multiple heads. The signal processing, analog outputs and computer interface are handled by the control box which includes a display showing the index, temperature and concentration scales. IPR2 is also IPR3 The IPR3 is a self contained index transmitter using an RS232 connection to send data to your computer system or PLC. Built for processing environment Microprocessor control for speed
accuracy and flexibility Optional outputs include
Suitable for many applications in the food and sugar industry as well as chemical and effluent monitoring systems.The iPR2 is ideal for juice, juice concentrate, beverages, soft
drinks, wine, beer, coffee, milk products, jams jellies and tomato
pastes. And massecuit, molasses, press water, liquid sugar, fructose,
glucose and sucrose. For sticky materials the adaptor flange can be fitted with a cleaning nozzle. |
|
|
Model IPR3 1.32
- 1.53 This inline process refractometer has the electronics and the optical components mounted together into a single unit. There is an optional display box for local readout but the unit is designed as a transmitter with analog and digital outputs ready for external indicators, controllers or computer. The unit is set up through a computer interface with a Windows PC. |
|
| In Situ
cleaning The illustration shows a refractometer head with a cleaning nozzle opposite the prism face viewed through a cutaway in the Tuchenhagen flange. This kind of cleaning device can be used with any of the IPR in line refractometers |
|
 |
| Measuring head adaptable to any location The stainless steel refractometer head can be mounted into pipes, kettles, or other vessels with the aid of suitable fittings. You can specify the fittings you need and our engineers will work with you to provide a configuration for your process. We also offer Tri Clover, aseptic and Varivent Tuchenhagen flanges. |
|
| Mounting Arrangements | |
 |
 |
| Mounted in 90 degree elbow hose connections | Mounted in flange for tank or vessel with cleaning nozzle |
 |
 |
| Water cooled head with ultrasound cleaning | Mounted in T to a pump |
| Process Refractometer Specifications |
| Model | IPR2
Heads and Controller - output specifications refer to the controller. |
IPR3 Independent process sensor - Index Transmitter | ||||||||
| Measuring Range index | 1.33 -
1.52
(4 different heads ) |
1.32 - 1.53 | ||||||||
|
||||||||||
| Measuring range Brix | 0 - 95 | 0-95 | ||||||||
| Span | 50 Brix, ref index 0.100 | 0.1 Brix | ||||||||
| Resolution RI/Brix | 0.0001/0.1 (0.02 Brix option) | 0.0001 /0.1 | ||||||||
| Temp. (max) | 150 degs. C | 150 C with water cooling | ||||||||
| Pressure | 1 MPa / 145 psi | |||||||||
| Wetted parts | Stainless Steel / Sapphire or YAG | |||||||||
| Console | NEMA 4 | Electronics built into head | ||||||||
| Data Output | RS 232, RS485 | |||||||||
| Prism cleaning | Flange adaptor | |||||||||
| Power Supply | 85-260 Volts AC | |||||||||
| Relay Output | 8 relay output limit switches | 2 relay output limit switches | ||||||||
| Analog Out | 3 separate 4 - 20 Ma outputs | 2 separate 4 - 20 Ma outputs | ||||||||
| Digital Out | RS232C standard | RS232C ~ 65ft range RS485 ~ 3000 ft range |
||||||||
| Control outputs | Two - max 20 mA, use as limit switch for valves or similar applications | |||||||||
|
| Home
| E-mail | Inquiry
form | Related products|
Topac Inc 231 CJC Highway, Cohasset MA 02025 USA |
of your
process. The modular design used provides for the easy interchange of
control cards to provide outputs and interfacing to your process
environments. The built in display continuously monitors temperature
and refractive index at predetermined intervals and can read out in
standard or customized scales to suit your process. The built in
keypad permits password protected user set up and local and remote
diagnostics of the operation of the instrument.