InstroTek Solution

Until now there has been no simple portable field calibration verification device. To comply with ASTM standards, customers had to ship their gauges to calibration facilities for verification and/or re-calibration.

Customers with multiple gauges spend thousands of dollars every year in calibration and shipping costs.

Data indicates while some gauges operate accurately long after one year in use, other gauges might have to be calibrated even after shipment from calibration facilities. It is not known how long a gauge can operate without needing a new set of calibration constants. Gauge calibration can change due to many reasons. For best results, it is important to have a simple method of verifying the gauge calibration accuracy prior to use. A daily standard count is not the answer. The daily standard count establishes how well the gauge electronics is operating and it also corrects for decay of the Cesium-137 source. However, the standard count does not correct for critical changes in gauge geometry.

ValiDator from InstroTek is the solution to this problem. In as little as one minute you can verify the accuracy of your gauge calibration at a desired depth. Simply place your gauge on the ValiDator™ and take a count. The gauge density reading on the device will guide your decision. If your verification density fails, you can use the CaliBration module, take a count on the ValiDator™ at a desired depth and re-calibrate your gauge.