Rudolph Research Analytical is a renowned manufacturer of analytical instruments. Its flagship products include digital refractometers, which fall under the J series. RRA’s J-series refractometers has 10 models which are widely used in industries such as pharmaceutical, chemical, petroleum, petro-chemical, and food & beverages.
To cater to all possible fields of application, RRA offers different models with each one having certain specific features necessary for that application. The following are Rudolph’s line-up of refractometers to suit various applications:
J47 Refractometer Specifications | |
Measurement Scales | Refractive Index (RI) |
Measurement Range | J47HA – 1.32 – 1.53 RI, 0 – 100 BRIX |
Accuracy | J47HA – ±0.00003 RI, ±0.03 BRIX |
Reproducibility | J47HA – ±0.00002 RI, ±0.01 BRIX |
Resolution | J47HA – ±0.00001 RI, ±0.01 BRIX |
Prism | Synthetic Sapphire |
Light Source | Light Emitting Diode (est. life: 100,000 hrs.) |
Response Time | User configurable, can be less than 5 seconds |
Communication Interface | 1 USB, 1RS232 |
Temperature Control | Temperature Correction Only |
Temperature Correction range | 4ºC – 95ºC (for pure sucrose solutions) |
Calibration | Using water or NIST traceable fluids. Factory Default calibration can always be reset. |
Operating Dimensions | L: 12″ W: 6″ H: 5″ / 7.8 lbs. |
Shipping Dimensions | L: 17″ W: 12″ H: 13″ / 11.8 lbs. |
Power Requirements | 100-240 volts, 50 Hz – 60 Hz |
J57 Refractometer Specifications | |
Measurement Scales | Refractive Index (RI) |
Measurement Range | J57HA – 1.32 – 1.53 RI, 0 – 100 BRIX |
Resolution | J57HA – ±0.00001 RI, ±0.01 BRIX |
Reproducibility | J57HA – ±0.00002 RI, ±0.01 BRIX |
Accuracy | J57HA – ±0.00002 RI, ±0.01 BRIX |
Optical Wavelength | 589.3nm (other wavelengths available) |
Prism | Synthetic Sapphire |
Light Source | Light Emitting Diode (est. life: 100,000 hrs.) |
Response Time | User configurable, can be less than 5 seconds |
Communication Interface | 1 USB, 1RS232 |
Temperature Control | Temperature Control to 20ºC and 25ºC |
Variable Temperature Control | Optional VT model adds variable temperature control from 20ºC to 65ºC – Cooling fan included for high ambient temperature environments above 40ºC |
Ambient Temp. Limit | 5ºC – 40ºC |
Temp. Correction Range | 4ºC – 95ºC (for pure sucrose solutions) |
Calibration | Using water or NIST traceable fluids. Factory Default calibration can always be reset. |
Operating Dimensions | L: 12″ W: 6″ H: 5″ / 7.8 lbs. |
Shipping Dimensions | L: 17″ W: 12″ H: 13″ / 11.8 lbs. |
Power Requirements | 100-240 volts, 50 Hz – 60 Hz |
J57TPN Specifications | |
Measurement Scales | Refractive Index (RI) |
Measurement Range | 1.33 – 1.53 RI, |
Resolution | 0.00001 RI |
Reproducibility | ±0.00002 RI, |
Accuracy | ±0.00002 RI, |
Optical Wavelength | 589.3nm |
Prism | Artificial Sapphire |
Light Source | Light Emitting Diode (est. life: >100,000 hrs.) |
Response Time | Continuous readout or user programmable delay (i.e. a 25°C sample can be cooled to 20°C, measured in 40 seconds) |
Communication Interface | Two RS232 ports |
Control Temperature | 20°C or 25°C (customer specified) |
Temp. Accuracy | 0.05°C |
Ambient Temp. Limit | 10°C – 40°C |
Temp. Correction Range | 18ºC – 40ºC (for pure sucrose solutions) |
Temp. Measurement & Control | Prism surface |
Calibration | 1, 2 or full multi-point calibration |
Operating Dimensions | L: 15.5″ W: 10″ H: 4.5″ / 23 lbs. |
Shipping Dimensions | L: 26″ W: 21″ H: 16″ / 30 lbs. |
Power Requirements | 100-240 volts, 50 Hz – 60 Hz |
J157 Refractometer Specifications | |
Measurement Scales | Refractive Index (RI) |
Measurement Range | J157HA – 1.32 – 1.53 RI, 0 – 100 BRIX |
Resolution | J157HA – ±0.00001 RI, ±0.01 BRIX |
Reproducibility | J157HA – ±0.00002 RI, ±0.01 BRIX |
Accuracy | J157HA – ±0.00002 RI, ±0.01 BRIX |
Optical Wavelength | 589.3nm (other wavelengths available) |
Prism | Synthetic Sapphire |
Response Time | User configurable, can be less than 3 seconds |
Communication Interface | 3 USB, RS232 and Cat5 Network (Ethernet) |
Temp. Control Reproducibility | ±0.002° |
Ambient Temp. Limit | 5ºC – 40ºC |
Temp. Correction Range | 4ºC – 95ºC (for pure sucrose solutions) |
Calibration | Using water or NIST traceable fluids. Factory Default calibration can always be reset. |
Operating Dimensions | L: 17 1/4″ W: 12″ H: 13″ / 23 lbs. |
Shipping Dimensions | L: 27″ W: 21″ H: 17″ / 30 lbs. |
Power Requirements | 100-240 volts, 50 Hz – 60 Hz |
J257 Digital Refractometer Specifications | |
Measurement Scales | Refractive Index (RI) |
Measurement Range | 1.26 – 1.72 RI, |
Resolution | Refractive index ±0.0001(Standard), ±0.00001 (Optional) |
Repeatability | ±0.0001 RI, |
Accuracy | ±0.0001 RI, |
Optical Wavelength | 589.3nm (other wavelengths available) |
Prism | Industrial Sapphire |
Light Source | Light Emitting Diode (est. life: >100,000 hrs.) |
Response Time | Continuous readout or user programmable delay (i.e. a 25ºC sample can be cooled to 20ºC and measured in 20 seconds) |
Communication Interface | 3 USB |
Analog Control | 0-10 volts, 4-20 mA |
Temp. Control Range (within 10C of ambient) | 10ºC – 100ºC |
Temp. Sensor Accuracy | ±0.05ºC |
Ambient Temp. Limit | 5ºC – 40ºC |
Temp. Correction Range | 4ºC – 95ºC (for pure sucrose solutions) |
Temp. Control | Prism surface and presser |
Calibration | 1, 2 or full multi-point calibration |
Operating Dimensions | L: 15.25″ W: 10″ H: 4.5″ / 23 lbs. |
Shipping Dimensions | L: 26″ W: 21″ H: 16″ / 30 lbs. |
Power Requirements | 100-240 volts, 50 Hz – 60 Hz |
J357 AUTOMATIC Specifications | |
Measurement Scales | Refractive Index (RI) |
Measurement Range | RI 1.26 – 1.72 , |
Resolution | RI ±0.00001 |
Reproducibility | RI ±0.00002, |
Accuracy | RI ±0.00002, |
Optical Wavelength | 589.3nm |
Prism | Synthetic Sapphire |
Light Source | Light Emitting Diode (est. life: >100,000 hrs.) |
Response Time | User configurable — can be less than 2 seconds |
Communication Interface | 3 USB |
Analog Control | 0-10 volts, 4-20 mA |
Temp. Control Range (Within 10C of ambient) | 10ºC – 100ºC |
Temp. Sensor Accuracy | ±0.05ºC |
Ambient Temp. Limit | 5ºC – 40ºC |
Temp. Correction Range | 4ºC – 95ºC (for pure sucrose solutions) |
Temp. Measurement & Control | Prism surface and presser |
Calibration | Using water or NIST traceable standards |
Operating Dimensions | L: 17.25″ W: 12″ H: 13″ / 23 lbs. |
Shipping Dimensions | L: 27″ W: 21″ H: 17″ / 30 lbs. |
Power Requirements | 100-240 volts, 50 Hz – 60 Hz |
J457 Automatic Refractometer Specifications (all models) | |
Measurement Scales | Refractive Index (nD) |
Measurement Range | Refractive Index 1.26 – 1.72, |
Accuracy | Refractive Index ±0.00002, |
Reproducibility | Refractive Index ±0.00002, |
Resolution | Refractive Index ±0.00001 |
Temp. Control Range | 10°C to 110°C |
Temp. Control Reproducibility | ±0.01°C |
Ambient Temp. Limit | 5°C to 40°C |
Temp. Correction Range | 4°C to 95°C (for sucrose solutions) |
Sample Temp. Limit | -20°C to 250°C |
Optical Wavelength | 589.3nm (NaD line) |
Response Time | User configurable, generally less than 30 seconds |
Calibration | Using water or NIST traceable fluids. Factory default calibration can always be reset |
Prism | Artificial Sapphire |
Acid Resistance | Hastelloy™ measurement surface (optional) |
Data Storage/Internal Memory | 8GB non-removable Compact Flash |
Display | 10.4 inch diagonal, 800×600 pixels, color, Flat Panel Monitor with Resistant Touch Screen Interface, 400 nits brightness, gasketted for spill protection. |
User Interface | Touchscreen |
Communication Interface | 3 USB, RS232 and Cat5 Network (Ethernet) |
Operating Dimensions/Weight | L: 17 ¼”, W: 12”, H: 13” / 23 lbs. |
Power Requirements | 100 – 240 volts, 50 Hz – 60 Hz |
The digital refractometers designed by Rudolph Research Analytical have certain features that offer users a significant advantage and make them the preferred choice of customers.
The sapphire prism in the J-series refractometers offer high chemical and mechanical durability. The sample well is made of 316 stainless steel with a Techtron sealing ring, which makes it resistant to chemicals.
The accuracy of high-precision instruments depends on how clean they are. Hence, it is important for them to be easy to maintain. In a refractometer, the sample well is the part which needs to be the easiest to clean. An unclean sample well can result in inaccurate measurements. With this in mind, the J-series digital refractometers have been designed with a shallow sample well that aids cleaning and thereby produces accurate results repeatedly.
For many critical applications such as the ones in pharmaceutical and chemical industries, controlling the temperature of the sample in the sample well is important. To make the J-series digital refractometers suitable for such applications, they are equipped with a temperature-controlled presser that assures even and highly accurate temperature stability.
All instruments manufactured by RRA come with a warranty of 3 years which is valid anywhere in the world. In case of any service requirements, the nearest authorized distributor will be immediately deployed. In India, Agaram Industries are authorized by RRA to attend to any service requirements of their products.
Agaram Industries is the exclusive distributor of Rudolph Research Analytical refractometers in India. To get a quotation with the refractometer price, you can fill up this form or send an email to sales@agaramindia.com
INTERESTED IN OUR PRODUCTS?
Related Products
