This document describes the features and characteristics of portable refractometers produced by Extech Instruments Corporation, including the ability to measure the concentration of sugar, salt, lubricants, antifreeze, cutting fluids, and more. The refractometers are easy to operate and provide accurate and repeatable measurements. Automatic temperature compensation models are available.
This document provides technical specifications for the Extech RF series of portable refractometers. The devices are designed to measure the concentration of various solutions including sucrose, lubricants, cutting fluids, salt, and coolants.
The product line includes models with or without Automatic Temperature Compensation (ATC). Key features include easy operation, simple focus adjustment via a prism and lens, and compact dimensions suitable for industrial and laboratory environments. The document lists specific measurement ranges, resolutions, and accuracies for each model variant.
| Measurement Types | Sugar, Salt, Lubricants, Antifreeze, Cutting Fluids |
|---|---|
| RF16 Range | 0 to 10% Brix |
| RF20 Measurement | Salt (ATC) 0 to 100ppt |
| RF40/RF41 Measurement | Coolant (ATC) |
Yes, some models are available with or without Automatic Temperature Compensation.
The unit comes complete with a case, calibration screwdriver, and calibration solution.