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TCR24

Product catalog summary

Overview
The TCR24 is an advanced instrument designed to measure soil thermal conductivity, crucial for projects involving underground pipes or geothermal wells. It features an integrated battery, monitor, and touch screen display.

Specifications

CPU: ARM Cortex A9
Power Supply: Li-ion 10.8V/12.4Ah
Autonomy: Over 8 hours
Monitor: 7” TFT-LCD capacitive touch-screen, 1280x800 resolution
Data Storage: 5 GB internal memory, USB external storage
Case: Polypropylene with automatic pressure valve, IP67 rated
Dimensions: 27 x 24.8 x 12.3 cm
Weight: 3 kg

Measurement Capabilities

Type: Resistivity and thermal conductivity
Channels: 1
ADC Converter Resolution: 24 bit
Thermal Conductivity Range: 0.1 to 6 W/m*K
Thermal Resistivity Range: 0.17 to 10 m*K/W
Accuracy: +/- 6%
Measure Interval: 300s - 900s
Temporal Measure Resolution: 25 ms

Operational Procedure
The device requires a hole drilled into the ground, where a probe is inserted to measure soil heat transmission. Data acquisition is automatic and results are stored on an SD memory card for further analysis using the TCreader software.

Environmental Conditions

CPU Temperature: -20°C to 70°C
Humidity: 0-90% RH
Probe Temperature: 0°C to 50°C

Reference Standards

IEEE-442-2017
ASTM D5334–14

Heat Transmission Values for Soil Types

Dry Loose Rocks: +/- 1.5 W/m K
Gravel, Sand, Water Table: 1.8 - 2.4 W/m K
Granite: 3.4 W/m K

Catalog excerpts

Integrated monitor Touch screen display Measure of soil thermal conductivity TCR24 is designed to measure soil heat transmission (soil tendency to transmit heat). This type of survey is usually carried out prior to install underground pipes, or prior to build geo-thermic wells to detect heat from the soil, for buildings heating or conditioning. Measurement can be done on site with the probe supplied, up to a depth of 120 cm, or in case of greater depths, it is possible to pick up samples of compact ground (logs) and perform measurement in laboratory with proper laboratory probe. Acquired data can be examined directly on site, at the end of the acquisition phase regulated automatically by the device and it is expressed graphically and numerically in watt / (metres x kelvin) where: watt = unit of power; metre = unit of distance; kelvin = unit of temperature. Operatively speaking, a hole is made into the ground using common drill (not supplied) and a perforation point of 20 mm diameter with prolonged rod (supplied). Then the probe is introduced into the hole and by pressing slightly, probe tip is fixed into the ground at about 20 cm, in order to obtain best coupling with soil. Data acquisition is initiated by pressing a button, it is managed automatically by the instrument and lasts few seconds. Numeric and graphic data is stored on SD memory and then elaborated with dedicated TCreader software supplied together with instrument. Heat transmission of some types of soils - Dry loose rocks: +/- 1.5 W/m K - Gravel, sand, water table: 1.8 2.4W/m K - Granite: 3.4W/m K Methodologies Ground thermal conductivity Power supply Acquisition medium power consumption MAE s.r.l advanced geophysics instruments Zona Ind. Fresilia - 86095 Frosolone (IS)

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CPU environmental conditions Temperature (°C):-20 a 70; Humidity (RH): 0-90% Monitor TFT-LCD capacitive 7" touch-screen, 1280x800 Data storage Internal memory 5 GB (up to 300.000 acquisitions) / external Case Polypropilene, automatic pressure valve, IP67 Reference regulations IEEE-442-2017 ; ASTM D5334-14 Measurement range Thermal conductivity Measurement range Thermal resistivity Measure interval Temporal measure resolution Standard probe total length (CTS120) Probe diameter Probe environmental conditions Resistivity and thermal conductivity 1 MAE s.r.l advanced geophysics instruments Zona Ind....

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