18
Measuring Higher Temperatures
The polyurethane membranes fitted to the single element probes
are suitable for measuring surface temperatures up to 70°C
(160°F). For measuring higher temperatures Teflon membranes
are available and suitable for surface temperatures up to 150°C
(300°F) with intermittent contact. Contact Cygnus instruments to
order Teflon membranes.
When measuring high temperatures limit the time the probe is in
contact with the hot surface to less than 4 seconds and ensure the
probe has sufficient time between measurements to cool down.
Summary of Cygnus Probes
Single Element probes
Probe
Type
Size Frequency
Range in
Steel
Typical Uses