Calibration and Reference Pads

Description

  • Magnetic Susceptibility Calibration Pads
  • Conductivity Reference Pads
  • IP/Resistivity Reference Pad

A range of magnetic susceptibility calibration pads, conductivity reference pads, and an IP/resistivity reference pad are available for the KT-10
and/or KT-20 instruments. The purpose of the pads is to confirm that a KT-10 or KT-20 is operating within its specifications, ensuring the measurements
are accurate and reliable. The calibration pads have the added benefit of being able to recalibrate a KT-10 or KT-20 with magnetic susceptibility
activated. The magnetic susceptibility and conductivity pads come in flat and curved designs to accommodate instruments with different
coil/sensor shapes, and with varying nominal values to confirm the instrument’s accuracy within different ranges. Although the pads are designed
for the KT-10 and KT-20 systems, they are also compatible with other instruments. Each magnetic susceptibility and conductivity pad is tested by an
independent third-party and delivered with a test certificate confirming their nominal value and homogeneity.

Magnetic Susceptibility Calibration Pads

The calibration pads are to recalibrate any KT-10 or KT-20 that is capable of measuring
magnetic susceptibility. They also serve as a check source to confirm the instrument’s
measurements are accurate. The pads are available in flat and curved designs.

Flat Pads

Low and High Range (left and right)
Flat Magnetic Susceptibility Calibration Pads
The flat calibration pads are for use with any magnetic susceptibility-enabled KT-10 coil
or KT-20 sensor with a circular or rectangular shape. They are available with low and
high nominal magnetic susceptibility values to confirm the instrument’s operation in
either range. The calibration pad with high nominal values is for use only with magnetic
susceptibility meters with the Plus upgrade activated. Each pad is delivered in a leather
case for protection.

Nominal Magnetic Susceptibility Value1 Diameter Height Weight
Low Range ~ 34 x 10-3 SI 145mm 70mm 2.65kg
High Range ~ 2500 x 10-3 SI
145mm
70mm 2.65kg

Curved Pads

The curved magnetic susceptibility calibration pads are designed for use with the KT20’s 10 kHz curved sensors. The curved pads are shaped like drill core, with feet on the
bottom for stabilization during use, and are available in BQ, NQ, HQ or PQ diameters.

Nominal Magnetic Susceptibility Value1 Diameter Height Weight
BQ ~ 95 x 10-3 SI 36.5mm 150mm 0.39kg
BQ ~ 95 x 10-3 SI 47.6mm 150mm 0.61kg
HQ ~ 95 x 10-3 SI 63.5mm 150mm 1.07kg
PQ ~ 95 x 10-3 SI
85mm
150mm 1.91kg

1 Nominal values indicated are approximate and will vary from pad to pad

Conductivity Reference Pads

The conductivity reference pads are check sources for any KT-10 or KT-20 that is
capable of measuring conductivity. The pads are available in flat and curved designs.
Every conductivity reference pad has their absolute values measured by two methods.
The first is the contact measurement of the electrical resistivity of the pad based on the
plazmochemical deposition of Ah on its top and bottom surfaces. The second method
is the standard four-point contact method.

Flat Pads

The flat conductivity reference pads are for use with any conductivity-enabled KT-10
coil or KT-20 sensor with a circular or rectangular shape. There are three different pads
available in low, medium, and high nominal conductivity values to confirm the
instrument’s operation in each range. Each pad is delivered in a leather case for
protection.

Nominal Conductivity Value1 Diameter Height Weight
Low Range ~ 9 S/m 152mm 50mm 1.2kg
Mid Range  ~ 700 S/m 128mm 50mm 1.0kg
High Range ~ 85,000 S/m 152mm 50mm 1.8kg

Curved Pads

The curved conductivity reference pads are designed for use with the KT-20’s 100 kHz
curved sensors. The curved pads are shaped like drill core, with feet on the bottom for
stabilization during use, and are available in BQ, NQ, HQ or PQ diameters.

Nominal Conductivity Value1 Diameter Height Weight
BQ ~ 18 S/m 36.5mm 150mm 0.23kg
BQ ~ 18 S/m 47.6mm 150mm 0.37kg
HQ ~ 18 S/m 63.5mm 150mm 0.64kg
PQ ~ 18 S/m
85mm
150mm 1.14kg

IP-T10 IP/Resistivity Reference Pad

The IP-T10 is a reference pad to verify the KT-20 IP/Resistivity Module’s various
measurement parameters. Its housing is shaped like a drill core and made from polished
granite to minimize the influence of any surface contamination. The IP-T10 is compatible
with both the small and large KT-20 IP sample holders. It is delivered with a factory test
certificate, and conveniently stores inside the KT-20 IP sample holder’s case.

Dimensions 60 mm (length) x 70 mm (diameter)
Weight 0.7 kg

Measurement Parameter Unit of Measure Nominal Value1
MxFit mV/V ~16.9 ± 0.4
MIP (Initial Chargeability) mV/V ~ 97.8 ± 0.5
R (Contact Resistance) ~ 99.7 ± 0.8
Total Tau (Time Constant) ms
~ 236.9 ± 4
A x 102 (Amplitude) V/V ~ 9.9 ± 0.1

1 Nominal values indicated are approximate and will vary from pad to pad
Specifications are subject to change without notice (May 14, 2020)