Innovative RapidCal™ Tank
Scale Calibration

RapidCal™ is an innovative way of tank scale calibration. Instead of using test weights, or filling material in the tank, the downward force is applied by hydraulic equipment. The loading of the tank scale during RapidCal™ is the same as during normal operation, meaning piping influences are accounted for. 

RapidCal™ can be used for tank scales in the 1 – 32 ton capacity range, whenever the Quality System, internal or external regulations demand the regular calibration of the production and storage facilities. If there is no such requirement, but you still want to know the performance of your tank scale, RapidCal™ is the right method. It is fast and easy, the calibration is finished in a few hours. 

RapidCal™ reduces production downtime to only a few hours, then production can be continued, and lost profit is minimized. RapidCal™ does not require expensive calibration material such as purified water. The force is applied externally; the tank interior is not interfered with, no cleaning of the tank before and after the calibration is needed. RapidCal™ is accurate, and results in a traceable certificate, which complies with Quality System requirements. 

The calibration is completed by a member of the METTLER TOLEDO service team. The RapidCal™ equipment is attached to the anchor points on the tank and on the foundation. Force is applied by hydraulic equipment and measured with reference load cells. The value on the recalibration terminal is compared to the tank scale terminal. If needed, the tank scale is adjusted. For details watch the video. 

The force is applied with the help of hydraulic cylinders and hand pump. The RapidCal™ Modules are connected to anchor points on the tank and on the foundation. The hydraulic pull cylinders are part of the calibration modules, which are pressurized by the hand pump and they generate the downward force. 

RapidCal™ has many benefits over calibration with flowmeter. It is much faster, no expensive material is needed (like purified water), the tank content is not touched, and RapidCal™ doesn’t require long production stops. 

Schedule the tank scale calibration with the METTLER TOLEDO service team for the time when your tank is anyways empty, and RapidCal™ is performed within a few hours.

Contact your METTLER TOLEDO sales representative for the Engineering Recommendations document. It contains detailed description of the RapidCal™ method and has many examples showing different tank installations. We also provide a CAD drawing package which can be readily used during the tank design phase.

There is no straightforward answer, much depends on the installation, available information, original drawings etc. Please contact us, and our technical experts will help you to answer this question.

Calibration with test weights is still the most accurate. The advantage of RapidCal™ compared to test weights is the speed, it is much faster but still with very good accuracy.

For RapidCal, each leg of a tank scales shall have an upper and lower anchor point strong enough to cope with the tension force during calibration. Our consultants can provide additional details.

METTLER TOLEDO offers RapidCal tank calibrations as a service which is available in all regions. Please contact us for more details.

Calibration with test weights is still the most accurate. The advantage of RapidCal™ compared to test weights is the speed, it is much faster but still with very good accuracy.