Guarded Hot Plate - The Absolute Method for Testing Insulation Materials
Measuring devices of the GHP 500 series are robust cabinet devices which are especially suited for testing thicker specimens. Thanks to the integrated single board computer (SBC) with Windows operating system, the Lambda software and the high-resolution color touch display, the devices are very user-friendly.
Numerous interfaces such as RS232, USB and Gigabit Ethernet enable connectivity to peripheral devices and allow for fast and convenient data transfer. Connection to an external PC allows for the extensive evaluation of test results and the printing of test reports.
NETZSCH TAURUS Instruments GmbH primarily focuses on devices for measuring the thermal conductivity of building, construction and insulating materials.
Devices with guarded hot plate in accordance with ISO 8302
Devices with guarded hot pipe in accordance with DIN EN ISO 8497 (see TLR 1000 brochure)
Guarded Hot Plate - Principle of Operation
The hot plate and the guard ring are sandwiched between two samples of the same material and approximately the same thickness, d. Cold plates are placed above and below the samples. All plate temperatures are controlled such that a well‐ defined, user‐selectable temperature difference, ΔT, is established between the hot and the cold plates – and thus across the sample thickness. The guard ring is maintained exactly at hot plate temperature in order to minimize lateral heat losses.
Which questions can be answered with this Method?
How is a particular insulation material performing?
How can cryo tanks be insulated in the best possible way?