Fibre-optic system measures temperatures down to -269degC

This outstanding performance is available on all models in the Fotemp series, and gives them a full temperature range of -269 to +300degC. These measurements are achieved using completely non-metallic fibre-optic probes with a specific heat capacity of 1mJ per gram per Kelvin, and a heat conduction of just a thousandth that of conventional electrical probes.

Different fibre-optic probes are available to suit individual applications, offering various dimensions, lengths and material compositions. Probe diameters range from 0.45-2mm, with lengths of up to 20m available. Different probes can be connected to the Fotemp units as required; all that needs to be done is to run a quick and simple calibration procedure from the front controls or the supplied software via a PC. This flexibility allows one Fotemp system to use many different fibre-optic probes and tackle many different applications.

Fotemp models are available as standalone systems with front-mounted controls and displays, providing individual analogue outputs for each fibre-optic probe and RS-232 digital communications. Compact single-channel OEM systems are also available without built-in controls or displays, instead providing just one analogue output and a digital interface.