Labcritics
J47 and J47 WR Refractometers
Digital RefractometersLaboratory Testing Equipment

J47 and J47 WR Refractometers

Manufacturer: Rudolph Research Analytical

SKU: Inquire

Description

Rudolph Research Analytical's J47 series refractometers are built for robust, high-volume use in environments like food and beverage quality control, where they function as essential tools rather than delicate laboratory instruments. These models provide rapid results, typically in less than five seconds. They feature a single, flat measurement surface that simplifies cleaning and sample application. Operation is streamlined to a one-button measurement process. Available in standard and wide-range (WR) configurations, the instruments cover different refractive index spans: the standard J47 measures from 1.32 to 1.53 RI, while the J47 WR extends from 1.30 to 1.70 RI. The temperature range is 4°C to 95°C. Resolution is model-dependent, offered at either ±0.00001 RI (±0.01 BRIX) or ±0.0001 RI (±0.1 BRIX). Key features include temperature correction based on ICUMSA or custom tables, user calibration with one or two points, and a durable sapphire prism designed to withstand frequent use.

Specifications

ItemJ47 and J47 WR Refractometers
CompanyRudolph Research Analytical
Catalog NumberInquire
QuantityEA
Temperature Range4°C to 95°C
Resolution±0.00001 RI (or ±0.01 BRIX) or ±0.0001 RI (or ±0.1 BRIX) (model dependent)
Measuring Time< 5 seconds
Refractive Index Range1.32 to 1.53 RI or 1.30 to 1.7 RI (model dependent)
Brix Range0 to 100 BRIX
Optical Wavelength589.3 nm
TypeBenchtop
Measuring Range1.32 to 1.53 RI / 0 to 100 BRIX or 1.3 to 1.7 RI / 0 to 100 BRIX (model dependent)
Measurement Mode(s)Refractive Index (RI), BRIX (% sucrose), Temperature Corrected, BRIX Temperature Corrected, and RI 100 User Programmable Scales
Dimensions(WxDxH) 6.0 x 12.0 x 5.0 in.
Accuracy±0.00003 RI (or ±0.03 BRIX) or ±0.0001 RI (or ±0.1 BRIX) (model dependent)