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Description
Extech RF40 Portable Battery Coolant/Glycol Refractometer (ATC)
Lightweight and user-friendly, the Extech RF40 Portable Battery Coolant/Glycol Refractometer is perfect for accurately determining the concentration levels of ethylene/propylene glycol as well as measuring the overall freezing point of various types of coolant.
The Extech RF40 provides ranges of -60 to 32°F Propylene Glycol freeze point, -60 to 25°F Ethylene Glycol freeze point and 1.15 to 1.30 Specific Gravity of Battery Acid, with all measurements calculated using Automatic Temperature Compensation (ATC), ensuring that the effects of temperature don’t effect measurement accuracy.
Ideal for determining repeatable measurements by adjusting the focus slightly, the easy-to-use RF40 only requires 2 to 3 drops of solution in order to operate and offers the ability to adjust the focus of the prism and lens thanks to a built-in focus adjustment option.
You can find our full range of Refractometers here.
Extech Refractometer Comparison Table
Model Type Ranges Resolution Accuracy RF16 Sucrose 0 to 10% Brix 0.1 ±0.1% RF11 Sucrose (ATC) 0 to 10% (10 to 30°C) 0.1 ±0.1% RF18 Lubricants/Cutting Fluids 0 to 18% Brix 0.2 ±0.2% RF12 Lubricants/Cutting Fluids (ATC) 0 to 18% Brix (10 to 30°C) 0.2 ±0.2% RF10 Sucrose 0 to 32% Brix 0.2 ±0.2% RF15 Sucrose (ATC) 0 to 32% Brix (10 to 30°C) 0.2 ±0.2% RF20 Salt (ATC) 0 to 100ppt (10 to 30°C)
1.000 to 1.070 Refractive Index0.001 ±0.1% RF40 Coolant (ATC) -60 to 32°F Propylene Glycol freeze point
-60 to 25°F Ethylene Glycol freeze point
1.15 to 1.30 Specific Gravity of Battery Acid2°F
2°F
0.01±2%
±2%RF41 Coolant (ATC) -50 to 0°C Propylene Glycol freeze point
-50 to 0°C Ethylene Glycol freeze point
1.15 to 1.30 Specific Gravity of Battery Acid1°C
1°C
0.01±2%
±2%RF30 Triple Range
General Service0 to 41% Brix
42 to 71% Brix
72 to 90% Brix0.2
0.2
0.2±0.2%
±0.2%
±0.2% -
Specification
- 60 to 32°F Propylene Glycol freeze point (resolution 2°F, accuracy ±2%)
- -60 to 25°F Ethylene Glycol freeze point (resolution 2°F, accuracy ±2%)
- 1.15 to 1.30 Specific Gravity of Battery Acid (resolution 0.01)
- Dimensions: 160 x 40 x 30mm (6.2 x 1.6 x 1.2")
- Weight: 180g (6.3oz)
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Supplied Accessories
- Extech RF40 Portable Battery Coolant/Glycol Refractometer
- Calibration Screwdriver
- Calibration Solution
- Carrying Case
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Product Documents
Product Attachments
Extech Portable Refractometers Size: (281 KB) -
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