1. Introduction
We are happy and proud to share this Nuclear Moisture/Density Gauge
verification and calibration technology with you. ValiDator is the first and the
only traceable portable verification and calibration system in the industry.
InstroTek, Inc. would like to thank you for selecting the ValiDator as your field
verification and calibration device. The ValiDator Technology is covered by US
Patent numbers 5,923,726 and 6,050,725 including International patents.
We value your input and would like to hear from you with comments and
suggestions on how we can better serve you with this or other products.
This guide is designed as a reference for the operation of the Verification and
Calibration System. A thorough understanding of the operation and application
of Nuclear Moisture/Density gauges is necessary.
Please follow the nuclear gauge manufacturer recommendations with regard to
operation and safety concerns of these devices. All ValiDator operations should
be done from the end opposite the gauge source, stepping away three feet
while the source rod is in the measure position.
Why the ValiDator?
The American Society for Testing and Materials (ASTM) standards and American
Association of State Highway and Transportation Officials (AASHTO)
specifications require nuclear density gauges to be calibrated or verified every
12 months. In the absence of a field portable validation device, this commonly
would require returning a gauge to the manufacturer or other calibration
facilities. Strict shipping formalities, weeks without a gauge and expensive
calibration fees create a burden on gauge availability for field use.
Gauge owners have never had the option before of performing the verification
and re-calibration in the field. The ValiDator from InstroTek, Inc. is designed to
optimize the management of your gauge resources and help reduce
inconsistencies when multiple gauges are on-site. Multiple gauges calibrated
on the same device will reduce conflicts between results.
How to use the validator?
As easy as taking a field measurement, just place your CPN, Humboldt, InstroTek
or Troxler gauge on the ValiDator device and take a reading. Compare the
gauge wet density and moisture (M pcf) to the pass/fail range on the ValiDator
Calibration Sheet and your verification is complete. Even if the gauge
Verification fails, the optional Calibration Software would allow you to eliminate
the delays in calibration turn-around-time. Calibrate one or all depths in minutes.
