Industrial Products: Metalworking

• Always add fresh concentrate to water
• Never add water into concentrate
• Always use an accurate proportioner

Length" x Height" x Width" X 7.48 1728 (cu-in / cu-ft)

• Fat: ambient
• Chlorine: activates between 100˚C & 130˚C
• Phosphorus: activates between 210˚C & 250˚C
• Sulfur: activates between 510˚C & 600˚C

To Calibrate:

• Be certain the refractometer sight glass is clean
• Zero out the refractometer with the water used to mix the coolant
• Add a few drops of water to the glass and fold the flap down
• Read through the sight hole and adjust to zero
• Reading will be where the blue and white areas meet

• Add coolant from the sump to the clean glass
• Reading occurs where the blue and white areas meet
• If the line is very blurred, you  may have picked up a sample  with tramp oil
• Clean glass again
• Take a clean sample from a tramp oil free area of the sump and re-read
• Use this value as the reading

• Take the reading from the refractometer and multiply it by the RI multiplier above to determine concentration
• To ensure accuracy calibrate the refractometer before use
• Soluble oils read at a 1-1 ratio. 1% = 1 on the refractometer
• We recommend the Atago 1-32 refractometer for most coolants

• Check concentration daily
• Check pH weekly
• Check pH every 2-3 days for soluble oils