Especificações do refratômetro

Select a model of Refractometer below to see its specifications.

J47 Refractometer Specifications
Measurement Scales Refractive Index (RI)
BRIX (% sucrose)
Temperature Corrected BRIX
Temperature Corrected RI
100 User Programmable Scales
Measurement Range J47HA – 1.32 – 1.53 RI, 0 – 100 BRIX
J47WR – 1.3 – 1.7 RI, 0 – 100 BRIX
Accuracy J47HA – ±0.00003 RI, ±0.03 BRIX
J47WR – ±0.0001 RI, ±0.1 BRIX
Reproducibility J47HA – ±0.00002 RI, ±0.01 BRIX
J47WR – ±0.0001 RI, ±0.1 BRIX
Resolution J47HA – ±0.00001 RI, ±0.01 BRIX
J47WR – ±0.0001 RI, ±0.1 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.
L: 31 cm W: 15.5 cm H: 13 cm / 3.5 kg
Shipping Dimensions L: 17″ W: 12″ H: 13″ / 11.8 lbs.
L: 42.5 cm W: 30 cm H: 34 cm / 5.5 kg
Power Requirements 100-240 volts, 50 Hz – 60 Hz

J57HA Refractometer Specifications
Measurement Scales Refractive Index (RI)
BRIX (% sucrose)
Temperature Corrected BRIX
Temperature Corrected RI
100 User Programmable Scales
Measurement Range J57HA – 1.32 – 1.53 RI, 0 – 100 BRIX
J57WR – 1.3 – 1.7 RI, 0 – 100 BRIX
Resolution J57HA – ±0.00001 RI, ±0.01 BRIX
J57WR – ±0.0001 RI, ±0.1 BRIX
Reproducibility J57HA – ±0.00002 RI, ±0.01 BRIX
J57WR – ±0.0001 RI, ±0.1 BRIX
Accuracy J57HA – ±0.00002 RI, ±0.01 BRIX
J57WR – ±0.0001 RI, ±0.1 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.
L: 31 cm W: 15.5 cm H: 13 cm / 3.5 kg
Shipping Dimensions L: 17″ W: 12″ H: 13″ / 11.8 lbs.
L: 42.5 cm W: 30 cm H: 34 cm / 5.5 kg
Power Requirements 100-240 volts, 50 Hz – 60 Hz

J57TPN Specifications
Measurement Scales Refractive Index (RI)
BRIX (% sucrose)
Urine Specific Gravity
Measurement Range 1.33 – 1.53 RI,
0 – 95 BRIX
1.00 – 1.04 Urine SG
Resolution 0.00001 RI
0.01 BRIX
0.0001 Urine SG
Reproducibility ±0.00002 RI,
±0.0l5 BRIX
±0.0001 Urine SG
Accuracy ±0.00002 RI,
±0.02 BRIX
±0.0001 Urine SG
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
One parallel printer port
One auxiliary port
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)
BRIX (% sucrose)
Temperature Corrected BRIX
Temperature Corrected RI
100 User Programmable Scales
Measurement Range J157HA – 1.32 – 1.53 RI, 0 – 100 BRIX
J157WR – 1.29 – 1.66 RI, 0 – 100 BRIX
Resolution J157HA – ±0.00001 RI, ±0.01 BRIX
J157WR – ±0.0001 RI, ±0.1 BRIX
Reproducibility J157HA – ±0.00002 RI, ±0.01 BRIX
J157WR – ±0.0001 RI, ±0.1 BRIX
Accuracy J157HA – ±0.00002 RI, ±0.01 BRIX
J157WR – ±0.0001 RI, ±0.1 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.
L: 43.5 cm W: 30.5 cm H: 33 cm / 10.4 kg
Shipping Dimensions L: 27″ W: 21″ H: 17″ / 30 lbs.
L: 68.58 cm W: 52 cm H: 43.18 cm / 13.6 kg
Power Requirements 100-240 volts, 50 Hz – 60 Hz

J257 Digital Refractometer Specifications
Measurement Scales Refractive Index (RI)
BRIX (% sucrose)
Temperature Corrected BRIX
Temperature Corrected RI
100 User Programmable Scales
Measurement Range 1.26 – 1.72 RI,
0 – 100 BRIX
Resolution 0.0001 RI
0.01 BRIX
Reproducibility ±0.0001 RI,
±0.1 BRIX
Accuracy ±0.0001 RI,
±0.1 BRIX
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
RS232 ports
Cat5 Network (Ethernet)
Analog Control 0-10 volts, 4-20 mA
Temp. Control Range (within 10C of ambient) 5ºC – 100ºC
*other temperature control options are available
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)
BRIX (% sucrose)
100 User Programmable Scales
Measurement Range RI 1.26 – 1.72 ,
BRIX 0 – 100%,
Urine SG 1.0000-1.0400
Resolution RI ±0.00001
BRIX ±0.001
Reproducibility RI ±0.00002,
BRIX ±0.015
Accuracy RI ±0.00002,
BRIX ±0.015
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
RS232 ports
Cat5 Network (Ethernet)
Analog Control 0-10 volts, 4-20 mA
Temp. Control Range (Within 10C of ambient) 5ºC – 100ºC
*other temperature control options are available
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)
BRIX (% sucrose)
and up to 100 custom programmed scales.
Measurement Range Refractive Index 1.26 – 1.72,
BRIX 0 – 100%
Urine SG 1.0000-1.0400
Accuracy Refractive Index ±0.00002,
BRIX ±0.015
Reproducibility Refractive Index ±0.00002,
BRIX ±0.015
Resolution Refractive Index ±0.00001
BRIX ±0.001
Temp. Control Range 10°C to 110°C
*other temperature control options are available
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.
L: 43.5 cm, 30.5 cm, 33 cm / 10.4 kg
Power Requirements 100 – 240 volts, 50 Hz – 60 Hz