Step I: Entering Gauge Calibration Data
(An example of the Gauge Calibration Sheet may be found on page 11)
1. From the Gauge pull down menu, select New if this is the first time this
gauge data is being entered.
2. Enter Password. (This was obtained from InstroTek on installation. Please
contact InstroTek if lost.)
3. Enter Gauge General Information; Make, Model (Select the model
defined on page 3), Serial Number, Factory Calibration Standard Count
(This is the Calibration Standard Count on the Gauge Calibration Sheet of
the Gauge under test.)
4. Enter Gauge Calibration Data.
Caution: If this data is entered incorrectly, the gauge calibration may be
inaccurate.
Caution: Do not use the AC depth in the Verifier program for CPN Gauges.
a) Calibration Constants: The A, B, and C values used by the gauge to
calculate Wet Density and E and F or A and B for CPN gauges to
calculate Moisture (M pcf).
b) Calibration Block Densities: Note: Calibrations completed at
facilities other than the specific gauge manufacturer may require
correcting the densities before re-calibrating using the ValiDator.
If the densities for your Mg block indicated on your calibration sheet
is less than 110 pcf (1762 kg/m
3
or 1.762 g/cm
3
), then the densities
need to be normalized. To normalize the densities, divide the Mg
block density by 0.988, divide the Mag/Al block density by 0.974,
and divide the Alum block density by 0.964. If the units on the
calibration report are in kg/m
3
, then divide the density values by
16.018 and follow the above normalization procedures, dividing
mag density value by 0.988, Mag/alum density value by 0.974 and
Alum density value by 0.964. If the units are in g/cm
3
, then multiply
by 62.4 and follow the above normalization procedures, dividing
mag density value by 0.988, Mag/alum density value by 0.974 and
Alum density value by 0.964.
c) Calibration Block Counts: These are the Density counts from the
gauge calibration sheet.
d) Moisture Constants: Depending on the gauge manufacturer, these
are the E and F, or A and B for CPN gauges used by the gauge to
calculate Moisture in pcf or Kg
3
/m
3
.
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