Pt. Era Mitra Perdana

Scientific, Laboratory Equipment & Service

Krüss offers two models of Process Refractometers in thePR21 series. The PR21 has been developed for direct insertion into pipes and boilers, for process monitoring, control and separation of products in such industries as chemicals, beverages, food, pulp, paper, and sugar. Installation in a pipeline or tank is simple, as no bypass is necessary. Three interfaces are available for this unit: Analogue 0/4-20 mA, Ethernet, or PROFIBUS.

The PRB21 is a basic bypass process refractometer, meeting all requirements in continuous process monitoring, filling the gap between the DR6000 series of digital laboratory refractometers and the PR21. It is cost-effective, easy to install, has a wide measurement range, and like the PR21 covers a large range of industry applications. RS-232 and analogue 0/4–20 mA interfaces are available for this unit, and PROFIBUS can be supplied upon request. For visual monitoring an optional display is also available.

Special Features
• Excellent value for money
• Wide measurement range from 1.3300 –1.5600 nD; 0–95 %Brix
• Adjustable measurement interval (min. 3 s)
• Password-protected
• Prism in the sample chamber is easy to clean
• User-friendly interfaces for direct connection to a PLC
• Very easy to install, no special requirements 

Model overview

  Measurement accuracy Resolution Product temperature Ambient temperature
PR21S ±0.0002 nD     0.0001 nD  < 60 °C < 40 °C
PR21S-T ±0.2 %Brix 0.1 %Brix < 160 °C < 60 °C
PR21H ±0.00002 nD  0.00001 nD  < 60 °C < 40 °C
PR21H-T ±0.02 %Brix 0.01 %Brix < 160 °C < 60 °C
PT. Era Mitra Perdana
Head Office - Jakarta
Ruko Buaran Persada No. 31
Jl. R. Soekamto Duren Sawit Jakarta 13450, Indonesia 
Telp: +61-21-86612458; Fax: +62-21-86612365
Surabaya Office
Jl. Kebon Sari V No. 7G - Surabaya ; Telp : 0878 5341 2772