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REICHERT BRAKE FLUIDS REFRACTOMETERS

THE BRAKE-CHEK MODEL IS THE ONE THAT PERFORMS

 Accurately Check Boiling Point and Water Content in DOT3 and DOT4 Brake Fluids

Why check brake fluid?                            

  • Safety  
  • Performance
  • Customer satisfaction

Feature List

  • Small Sample Size – measurements can be made on one or two drops from the wheel cylinders or master cylinder
  • Quick and easy optical test
  • No messy cleanup
  • Scale reads boiling point and % water content
  • Focusable eyepiece with an easy to read scale

The Brake-Chek Brake Fluid Tester is a precision optical tool for determining the boiling point and water content of brake fluid.  Checking Brake Fluid with the Brake-Chek is quick and easy.  To test a sample one or two drops of fluid are placed on the sample window.  The clear sample cover is lowered into position and the image on the scale is viewed by pointing the instrument toward a light source and focusing the eyepiece.  The test takes just a couple of seconds and can be run on samples from the master cylinder or individual wheel cylinders.  The Brake-Chek requires no power and is easily cleaned by simply wiping away the small sample.  Since this test requires no actual heating of the sample it can be performed on consecutive samples without waiting for the instrument to cool.

 Many manufacturers recommend regular brake fluid inspections.  Over a relatively short period of time brake fluid will absorb moisture from the air.  SAE field tests show the average year old car has 2% moisture in the fluid.  A random test of vehicles is in the U.S. showed an average water content of 2.6% for vehicles with an average age of 8 years.  25% of these vehicles had water content greater than 4% - these vehicles are definite candidates for a brake fluid flush and change.  The amount of moisture in brake fluid affects its performance. 

  1. The boiling point decreases – Fluid with a reduced boiling point can create a vapor by boiling in the wheel cylinder.  Normally this could happen under adverse conditions such as braking down a long steep grade or with stuck brake pads.  Under these conditions rotor temperatures can climb high enough to boil brake fluid with high water content.  Stepping on the brake pedal will now only compress the vapor instead of applying force to the pad.  The result is sudden brake failure.  DOT3 fluid with no moisture content boils at greater than 40°F (205°C) as specified by DOT Standard 116. The fluid in a 3 to 4 year old car with 3 to 4% moisture content could boil at less than 300°F (149 °C).
  2. The viscosity increases – Brake fluid must flow freely to be effective.  In extremely cold weather brake fluid with high water content is very viscous, causing slow pedal response and requiring more effort.
  3. Corrosion problems can occur – Water in brake fluid can contribute to the corrosion of parts such as the steel pistons and ABS modulators.

 

Catalog No

Model/Description

Price

13759600

DOT3 Brake Fluid Tester, includes scales for Standard DOT3 and High Temperature DOT3 brake fluids for Fords and Racing brake fluids

$335.00

 

13759510

DOT4 Brake Fluid Tester, includes scales for Standard DOT4 and DOT4 Plus (Super)

$335.00
 

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