Brookfield Engineering Laboratories Viscometer HADV-II+Pro

Place the viscosity standard fluid in the proper container into the water bath.

Lower the DV-II+Pro into measurement position with guard leg if LV or RV series Viscometer is used.

Attach the spindle to the Viscometer.

If using a disk-shaped spindle, was it immersed at an angle to avoid trapping air bubbles?

Immersion and Temperature Stabilization

Immerse the viscosity standard fluid and spindle in the bath for a minimum of 1 hour, stirring periodically.

Check and record the temperature of the viscosity standard fluid after 1 hour.

Viscometer Calibration Verification

Verify calibration using standard viscometer spindles

Verify calibration using the Small Sample Adapter

Connect the water jacket to the water bath

Is the water stabilized at the proper temperature?

Enter the amount of viscosity standard fluid used

Place the sample chamber into the water jacket

Mechanically adjust the setting of the cone spindle to the plate

Determine the correct sample volume for the selected spindle

Select a viscosity standard fluid

Remove the sample cup and place the viscosity standard fluid into the cup

Wait for temperature equilibrium after placing the fluid

Connect the sample cup to the Viscometer and wait for temperature equilibrium

Measure the viscosity and record the Viscometer reading in % torque and centipoise (cP)

Ensure the spindle rotates at least five times before taking a viscosity reading

Select a viscosity standard fluid within the range of 5 cP to 5000 cP

Place the viscosity standard fluid in the proper container into the water bath.

Attach the spindle and chamber to the viscometer

Lower the DV-II+Pro into measurement position and operate at 50 or 60 RPM until the chamber is fully flooded.

Immerse the viscosity standard fluid and spindle in the bath for a minimum of 1 hour, stirring periodically.

Temperature and Viscosity Check

Check the temperature of the viscosity standard fluid with an accurate thermometer.

Is the fluid at test temperature (+/- 0.1°C of the specified temperature, normally 25°C)?

Viscometer Calibration Verification

Verify calibration using standard viscometer spindles

Verify calibration using the Thermosel

Put the proper amount of HT viscosity standard fluid into the HT-2 sample chamber

Place the sample chamber into the Thermo Container

Allow 30 minutes for stabilization