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In-line Refractometer "Atago" model PRM-100alpha





Continuous Concentration Measurement


NEW Wider-than-ever 0.0 to 100.0% Brix range


NEW Options to display readouts to the first or second decimal place


NEW Two-piece construction: detection section and operation display section (power supply included in the operation-display section)

NEW User-scale programmable from a computer (via RS-232C)


NEW Easy-to-read color display panel


·      Automatic Temperature Compensation according to the sample type ensures accurate concentration/Brix display at all times.


·      An alarm output to warn when measurements exceed programmed limits.


·      Continuous monitoring made possible by real-time measurements.








*    Brix of soft drinks


*    Concentration of beverage in the blending stage of syrup and water


*    Concentration of liquid coffee extracts


*    Concentration of liquid condiments in the dilution & blending stages


*    Fermentation level of alcohol


*    Concentration of sugar wastewater






*    Washing liquids – dilution coefficients, the water content, the concentration of  

     contaminant liquids, and the concentration in the rinsing process


*    Concentration of cutting oil, lubricants, or release agents in process


*    Concentrations of IPA, DMF, and hydrogen peroxide solutions


*    Concentrations of coolants and brine


*    Polymer concentration during polymerization






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 Brix 0.01% (by selection)


Measurement accuracy

Refractive index (nD) +/-0.00010, Brix +/-0.05%


Measurement temperature

5 to 100šC

(Clean-in-process (CIP) up to 130šC for no more than 30 minutes)


High and low limit settings

High and low control limits can be set by the keys.


Display items

Refractive index (nD), Brix, concentration (%), temperature (šC)


Output items

Either refractive index (nD), Brix or concentration (%), and temperature (šC)


Output method

RS-232C, DC4 to 20mA


Alarm output

Open-collector output for high and low limit settings (alarm output)


Power supply

AC100 to 240V, 50/60Hz



Detection section – operation display section (power supply 12V and RS-485)

Length: standard 15m (maximum up to 200m)



Prism: Sapphire


Light source

LED (D line approximation)


Pressure resistance

1.0MPa (detection section)


Relative humidity

5 to 40šC, 30 to 90%RH


International protection class

Detection section IP66, Calculation Display section IP65


Dimensions and weight

Detection section                 : 12.8 x 26.6 x 12.8 cm, 3.3 kg

Calculation Display section   : 19.2 x 10 x 24 cm, 3.3 kg



This product was added to our catalog on Thursday 23 September, 2010.
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Nanomachinery Co., Ltd.
4, Soi Petchkasem 100 ,Phetchkasem Rd. ,Bangkaenue ,Bangkae ,Bangkok, 10160, THAILAND.
Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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