Procedure
- Place a drop of sample on the sample lens beneath the clear window
- Look through the viewing lens to obtain a reading. If the line is clear and crisp, the coolant is in great condition. If the line is hazy, the coolant may be dirty and unstable
- Clean off the lens with DI water
How to measure metalworking fluid concentration?
A simple and cost-effective way to measure the metalworking fluid concentration is to use a handheld refractometer. As you may know, light changes the direction when it enters a liquid – this is called refraction. Refractometers measure the degree of this direction change, called the angle of refraction.
How do you calculate concentrated coolant in a coolant system?
For example, if you want the coolant system to contain 50 percent of concentrated coolant, then you would multiply 0.50 x 12 to get an amount of 6 liters. Step 5: Determine the amount to be added. Next subtract the amount of concentrated coolant currently within your coolant system from the amount you want.
What is a normal a level for coolant?
A reading from 33 to 50 percent is normal. Anything more or less means you need to add either antifreeze or water to bring the concentration within a normal range. Step 3: Multiply the coolant capacity times the percentage of antifreeze within the cooling system.
How do you read a car coolant hydrometer?
To read the hydrometer, check out the number and color of floating balls, or where the arrows point on the freeze point scale printed on the hydrometer. Whichever hydrometer type you use, the purpose is to show you the temperature range at which the coolant should work in your vehicle.
What tool should be used for checking coolant concentration?
Refractometers provide a quick, easy, and accurate way of testing and controlling coolant concentration.
What does a refractometer measure in coolant?
Refractometers are instruments used to obtain a °Brix reading, which measures the oil content present in a coolant mixture.
How do you check the coolant concentration in a CNC machine?
0:202:45How to Check Coolant Concentration - YouTubeYouTubeStart of suggested clipEnd of suggested clipCenter coolant area with the power turned. Off. The other area would be through the evac system intoMoreCenter coolant area with the power turned. Off. The other area would be through the evac system into the stop with a cool. Gently close the cover and find a good source of light and take your reading.
What is the ratio of coolant to water?
50:50The mixing ratio of water and antifreeze should lie between 60:40 and 50:50. This usually corresponds to antifreeze protection from -25°C to -40°C. The minimal mixing ratio should be 70:30 and the maximal 40:60. Further increasing the proportion of antifreeze (e.g. 30:70) does not lower the freezing point any further.
How do you use a hydrometer for coolant?
Use an antifreeze hydrometer. Suck in coolant from the header tank; if there is a float, take a reading where the float breaks the liquid surface and convert to antifreeze strength on the hydrometer chart. If there are balls, the numbers and colours floating show the strength;check the instructions.
How do you use a refractometer to measure concentration?
1:363:24How to use a refractometer to measure coolant concentrationYouTubeStart of suggested clipEnd of suggested clipAt a source of light focus the eyepiece until the brick scale is as clear as possible. Then you readMoreAt a source of light focus the eyepiece until the brick scale is as clear as possible. Then you read the value at the point where the darker half meets the lighter half this is your bricks.
What is coolant concentration?
Coolant concentrate is undiluted water-soluble fluid straight from the pail or drum that will be mixed with water to make what's known as a working solution. All Master Chemical concentrates are sold at full, 100% strength and they do not contain any unnecessary ingredients.
How do I check the pH level in my coolant?
Readings below pH 7.0 indicate that the coolant is acidic and should be changed. Any type of coolant may be checked by using a refractometer. Put a couple drops of coolant on the window of the refractometer and close the cover. Point it towards light, look through the eyepiece and read the scale.
How do you read a refractometer for glycol?
1:323:38How to Use A Refractometer to Test Glycol Concentration - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou will see a noticeable difference in color between. The dark and the light. Where that lineMoreYou will see a noticeable difference in color between. The dark and the light. Where that line crosses this scale. Will be the freeze protection level that you have in your glycol.
How do you test coolant acidity?
Propylene glycol coolants may be tested with a paper test strip. The test strips are dipped into the coolant and then the color of the strip is matched to the chart to determine the condition. This method measures the pH of the liquid, an indication of the acidity level.
Does a refractometer measure freezing point?
The refractometer (Fig. 1) allows rapid and accurate check of freezing points of coolants and heat-transfer media based on ethylene glycol and propylene glycol by reading from the respective scales (Fig.
How do you read a coolant tester?
0:554:04How to Use Coolant (Anti Freeze) Tester - TOTAL TECHNIK - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere a little bit of air in just by squeezing a little bit out and then put your finger on the endMoreThere a little bit of air in just by squeezing a little bit out and then put your finger on the end and then we can kind of see what the results of this test are going to be.
How to find the percentage of antifreeze in a radiator?
Step 1: Find the coolant capacity of your vehicle. This usually ranges anywhere between 8 to 18 liters. Your vehicle's owner's manual should contain this information. Step 2: Note the hydrometer reading.
How to draw coolant from radiator?
You can also draw coolant directly from the radiator opening by removing the cap. Make sure that the vehicle has cooled sufficiently before doing so. Fill the hydrometer by squeezing the rubber bulb on one end while the other is inserted into the coolant. Make sure to fill the hydrometer completely.
How to add antifreeze to radiator?
Step 1: Suck in the coolant. First, suck the coolant into the antifreeze hydrometer from the opening at the radiator header tank. This is also called an overflow or expansion tank, and is the point at which you add water or antifreeze to the system.
What is the coolant system in a car?
The cooling system in a car, specifically the radiator , creates a high-pressure environment that raises the boiling point of the fluid contained within it.
Why do you need to flush out the radiator when it gets low?
This is because over time the antifreeze breaks down and becomes contaminated with debris from within the engine and radiator.
What is the ratio of antifreeze to water?
Vehicles, such as cars and light trucks, require an antifreeze to water ratio of 50/50. This gives the coolant an adequate amount of freezing and boiling protection while also providing the corrosion protection the engine and radiator need.
What temperature should a hydrometer be?
The hydrometer should indicate a range of 34 degrees Fahrenheit or below to 265 degrees Fahrenheit or higher.
