In-line Refractometer PRM-100α The unit measures the refraction of light generated between the prism surface and a liquid sample. The PRM-100α is upgraded from the PRM-85 in the following aspects: • Wider than ever 0.0 to 100.00% Brix range • Improved measurement accuracy: Brix ±0.05%, nD ±0.00010 • Two options for setting the minimum indication decimal place • Simple two-piece construction: detection section and operation display section • Easy-to-read color display panel. Simply attach the unit to a piping system to monitor food or beverage production, pharmaceutical production, industrial fluid, washing devices, dilution/mixing devices, etc. Continuously monitor water content and mixing ratio with successive measurements of refractive index, Brix, or concentration. *The prism is specially designed to prevent solid materials from collecting on the surface, even after extended periods of use. Model PRM-100α Cat.No. 3574 Measurement Range Refractive index (nD) 1.32000 to 1.55700 Brix 0.00 to 100.00% Minimum Indication Refractive index (nD) 0.0001 or 0.00001 Brix 0.1% or 0.01% (by selection) Measurement Accuracy Refractive index ±0.00010 Brix ±0.05% Measurement Temperature 5 to 100°C (Clean-in-process (CIP) up to 130°C for no more than 30 minutes) Output method RS-232C, DC4 to 20mA Power Supply AC 100 to 240V, 50 / 60Hz Alarm output Open-collector output for high and low limit settings (alarm output) International Protection class Detection section IP66, Calculation Display section IP65 Optional * Calibration Certificate : Contact an ATAGO representative for details. Dimensions & Weight Detection section : 12.8 × 26.6 × 12.8cm, 3.3kg Calculation Display section : 19.2 × 10 × 24cm, 3.3kg