Process Refractometer

iPR Basic:
Process Refractometer

Schmidt + Haensch Process Refractometer

The automatically operating process refractometers IPR Basic measure the refractive index continuously and thus, the concentration of a binary or quasi-binary liquid mixture. The measurement is independent of light intensity from the light emitting diode (LED) and is free of signal drift, granting high precision and better process control. Colour, turbidity, undissolved particles or gas bubbles do not affect the measurement. You can choose from 4 measuring ranges.

The IPR Basic is a stand alone process sensor, which does not require an external electronic unit. Its special design and electronic configuration makes it highly flexible and very easy to operate. The iPR is easily programmable on windows software. Optional Data Logger and Universal Controller are available.

The stainless steel measuring head is resistant against chemicals, suiting foodstuff regulations. CIP and pipe pig use is possible. The IPR3 measuring head can be installed in pipes, reactor vessels, mixing tanks, kettles, boiling pans and evaporators, using different weld-in flanges.

Features

Inline, real-time refractive index, Brix or concentration measurement to monitor and control the concentration of dissolved solids in solutions, or liquids in process
Stainless steel measuring head featuring a sapphire or YAG prism, CIP capability (pipe pigs usable)
Continuous measurement and real-time process control with analog and digital outputs, limit comparators and internal diagnostics
Programmable scales, Brix scale temperature corrected

Suitable for many applications in the food and sugar industry as well as chemical and effluent monitoring systems:
Determination of mixing ratio

Quality and concentration control of dissolved solids

Interface detection (product change)

Concentration and pollution of cutting oils and lubricants

Concentration and pollution of detergents

Mounting accessories:
VariVent (Tuchenhagen) or costumer specified (CIP and pipe pig use )
Accessories:
Cleaning device for prism, paperless data recorder, Universal Controller

Process Refractometer Specifications

Model

iPR Basic

Measuring Range index

Measuring range M1:	0 - 50 Brix / 1.3300 - 1.4200 RI
Measuring range M2:	30 - 75 Brix / 1,3800 - 1,4800 nD
Measuring range M3:	45 - 85 Brix / 1,4000 - 1,5000 nD
Measuring range M4:	55 - 95 Brix / 1,4200 - 1,5200 nD

Precision

±0,2 Brix / ± 0,0002 nD

Resolution

0.1 Brix / 0.0001 RI 0.02 Brix on request - depending on process

Process Temp.

150* C (with water cooling installed)

Pressure

Max. 1 Mpa (145 psi, 10 bar)

Process Contact Material

Sapphire or YAG, Stainless steel, optional: Teflon

Interfaces

2 insulated 4 - 20 mA analog outputs
2 digital outputs / limit switches
2 serial outputs, alternatively RS232 or RS485

Measuring Scales

Brix, 2 scales programmable

Power Supply

24 V DC

Light Source:

589nm LED

Connecting Flanges

VariVent, TriClamp, APV or joint for Bypass-headpiece

Cleaning Option

Water-, steam- or ultrasonic cleaning

Topac Inc 231 CJC Highway, Cohasset MA 02025 USA
Tel: 781 740 8778 Fax: 781 740 8779 e-mail: sales@topac.com