The KD2 Pro is a fully portable field and lab thermal properties
analyser. It uses the transient line heat source method to measure
thermal diffusivity, specific heat (heat capacity), thermal
conductivity, and thermal resistivity. Sophisticated data analysis
is based on 30+ years of research experience on heat and mass
transfer in soils and other porous materials. Complies with
ASTM, IEEE, SSSA Standards.
The KD2 Pro uses 3 sensors to measure thermal
diffusivity, specific heat, conductivity and resistivity. The KD2
Pro allows unattended (user programmable) measurements and on-board
data storage with space for over 4,000 measurements.
Corrects for Temperature Drift
Temperature changes of a thousandth of a degree per second (the
sun warming the soil, for example, or someone walking into the lab)
destroy the accuracy of thermal properties calculations. Unlike
other thermal needle systems, the KD2 Pro corrects for linear
temperature drift that can account for large errors.
Excellent Accuracy
The compact KD2 Pro controller is much more than a simple
readout for time and temperature. A proprietary algorithm fits time
and temperature data with exponential integral functions using a
nonlinear least squares method. This full mathematical solution
delivers thermal resistivity to within ±10%.
| Specifications |
| Accuracy |
5% Specific Heat
5% Thermal Conductivity/Resistivity
10% Thermal Diffusivity |
| Measurement Speed |
1, 2, 5, & 10 min. read times (see user's
manual for more information) |
| Data Storage |
4,095 readings, flash memory |
| Compliance to Standards |
IEEE Standard 442-1981 and ASTM Standard D5334-08 |
| Operating Environment of Sensors |
-50°C to 150°C |
| Battery Source |
4AA |
| KD2 Pro Controller |
Model KD2Pro-C |
| Auto-Read Mode |
Users can collect unattended data at user-defined intervals in
the auto-read mode |
| Type |
Ultra low-power 16-bit microcontroller w/ 24-bit A/D
converter |
| Display |
Liquid Crystal Display (LCD) 7.5 cm x 4 cm |
| Case Dimensions |
15.5 x 9.5 x 3.5 cm
|
| Included Accessories |
KS-1 Thermal Conductivity/Resistivity sensor (for
liquids)
TR-1 Thermal Conductivity/Resistivity sensor (for solids)
SH-1 Dual-needle Thermal Properties sensor
User's manual
Pelican carrying case
Readout stand
Performance verification standards
Thermal grease
Drill bit for drilling pilot holes in materials
KD2 Pro download utility
RS232 cable |
| Calibration |
Each KD2 Pro comes factory calibrated
and includes performance verification standards |
| Range of Measurements |
K: 0.02 to 4 Wm-1 C-1
D: 0.1 to 1.0 mm2s-1
R: 0.25 to 50mC W-1
C: 0.5 to 4 MJ m-3 C-1
* Accuracy and measurement range vary with sensor type. See
Sensor(s) Information. |
Non UK/Ireland Customers
Non UK/Ireland Customers, please contact Decagon Devices
at: www.decagon.com
