To ensure accurate and reliable measurement results from your IKA ROTAVISC viscometer, the use of certified silicone oil is indispensable. IKA CAL-O silicone oil is specifically designed to meet this need, providing a reliable and easy calibration method.

Ensure accuracy with IKA CAL-O Standard Silicone Oil

With certified silicone oil, you can effectively check the measurement accuracy of your ROTAVISC. This ensures that your equipment always operates at optimal performance, providing accurate data for critical applications.

Flexibility and certification included

• Certifications are part of the delivery package: Every IKA CAL-O silicone oil product comes with a certificate, which guarantees the quality and reliability of the product.
• Customization according to customer requirements: Standard silicone oils with different viscosities or temperature conditions can be ordered specifically for the customer. This provides maximum flexibility for a wide range of calibration procedures.

Detailed specifications of CAL-O-1000 Silicone Oil

CAL-O-1000 Silicone Oil is a prime example of the quality and precision that IKA offers. Here are the main specifications:

This calibration check form can be used to verify the measurement performance of your ROTAVISC viscometer. Please follow the step-by-step instructions provided to ensure a correct calibration procedure.

1. Select the appropriate ROTAVISC model and spindle

Ensure that the correct ROTAVISC model and spindle type are selected. Note that the SP 4 and SP 12 spindles are not recommended for calibration checks due to their small surface area and the required accuracy which precludes their use.

2. Sample preparation and temperature control

• For relative measurements: Fill a 600 ml beaker (low profile) with standard lubricating oil and adjust the temperature to 25 °C (± 0.1 °C). This may take several hours. It is recommended to immerse the spindle and guard in the oil during the incubation period. The guard is required for lo-vi and me-vi instruments. To control the temperature inside the beaker, a circulating device (e.g. HRC 2 controller) can be used.
• For absolute measurements: Fill the corresponding measuring chamber with oil (refer to the operating instructions for the spindle type) and adjust to 25 °C (± 0.1 °C). This process may also take several hours. It is recommended to immerse the spindle in the oil during the incubation period. To control the temperature inside the measuring chamber, a circulation device (e.g. HRC 2 controller) can be used.

3. Enter the standard viscosity value

Enter the viscosity value of the standard oil at 25 °C, as indicated on the certificate or packaging label. Example: CAL-O-500 with a viscosity of 493 mPas at 25 °C.

4. Proceed with the viscosity measurement

Enter the first speed value to check the calibration, e.g. 10 rpm. Start the viscosity measurement at this speed and wait until the value stabilizes. The minimum speed must produce a torque of at least 10%.

The combination of speed and spindle should be selected so that the viscosity measurement takes place in the laminar flow region. The maximum recommended speed for calibration testing is:

• ROTAVISC lo-vi: 60 rpm
• ROTAVISC me-vi, hi-vi I & hi-vi II: 100 rpm

Recommended test conditions for ROTAVISC model calibration checks are: