We offer onsite recalibration and testing of our products using the most up to date methods and technologies. Simpson also keeps complete calibration records and maintenance reports, available to our customers, allowing for tracking of calibration and repair records provided by our personnel on your equipment.

Calibration service for Simpson Sand Testing Equipment includes machine calibration and maintenance, a calibration certificate indicating before and after calibration status (including appropriate reference to NIST traceable standards) and a formal written report of all the work completed. When necessary, replacement of critical repair parts or major machine repairs can be done on site by our engineers. We recommend that your Simpson Testing Equipment be calibrated twice per year.

Calibration service for Hartley Controls on-line control products includes machine calibration and maintenance and a formal written report providing before and after calibration status of the equipment. When necessary, replacement of critical repair parts or major machine repairs can be done on site by our engineers. We recommend that your Hartley Controls equipment be calibrated four times per year.