Process Refractometer PRM-TANKα

The PRM-TANKα Process Refractometer features a new design of the detection unit, which is to be mounted on the wall of a vessel. It is ideal for a variety of vessel types, such as distillers, condensers, blenders, fermenters, extractors, and filtration tanks. The flat sample stage prevents sample buildups, keeping the prism clean over an extended period of time.
Cat.No. 3575
Scale Refractive Index (nD)
Measurement item Refractive Index (nD)
Brix (temperature compensation for sucrose)
concentration (temperature compensation specific for the solute). And temperature
Measurement Range Refractive index (nD) : 1.31700 to 1.51000
Brix : 0.00 to 85.00%
Resolution Refractive index (nD) : 0.0001 or 0.00001
Brix : 0.1 or 0.01% (by selection)
Measurement Accuracy Refractive index (nD) : ±0.0001
Brix : ±0.1%
Measurement Temperature 5 to 40゚C
Temperature compensation range 5 to 100℃
Light source LED (D-line approximation)
Materials in contact with the solution Prism – synthetic sapphire
Prism O-ring – FEP, PTFE
Flange O-ring – PTFE
Prism stage – SUS316L
Display item Refractive Index, Brix,
concentration, temperature(゚C)
High and low limit setting High and low control limits can be set with keys.
Output RS-232C, DC4 to 20mA
Output item Refractive index(nD), Brix, concentration(%), temperature(゚C)
Display system Seven-segment LED
Alarm output Open-collector output for high and low limit settings (alarm output)
Cable Cable between the detection and display units : 15m standard (extension available up to 200m)
Power Supply AC 100 to 240V, 50 / 60Hz
International Protection Class Detection section : IP67
Calculation Display section : IP67
Dimensions & Weight Detection section : 25 x 29.73 x 25cm, 12.3kg
Calculation Display section : 19.2 x 10 x 24cm, 3.3kg
Power consumption 30VA
Pressure resistance 1.0MPa (Detection section)