Element: TFD-design glass-encapsulated Platinum layer on a ceramic substrate
TFD Leads: Platinum wire 0.2 mm D (0.008"), about 10 mm L (0.39") Temperature Range:
-70 to 500°C (-95 to 930°F) Insulative Resistance
at 500°C (930°F): >108 Ω
This flat Platinum resistance
detector represents OMEGA’s
latest development in miniature temperature sensing devices.
It combines the precision of the Platinum resistance detector with
the small temperature-sensing tip
and rapid response time of the thermocouple. An immediate field
of application for the TFD is surface temperature measurement.
The TFD achieves rapid response times because:
1) It has a high ratio of surface
area to volume
2) The temperature-sensitive
Platinum layer is separated from
the medium to be measured by
a thin ceramic substrate of high
This is of particular interest to users measuring temperature in gaseous environments, such as wind tunnels and air conditioners. The TFD is also extremely vibration-resistant.
The resistance values and tolerances comply with DIN 43760 and BS 1904 ratings (Pt100 Ω).
The TFD element is supplied in
an encapsulated sensor screw-mounted brass housing with PFA insulated leads. Two-, 3- or 4- wire configuration is available. Sensor design provides cost effective, fast response and easy mounting on flat surfaces. The maximum temperate
of the probe assembly is 260°C (500°F). Termination options are available for easy operation in conjunction with OMEGA handheld meters or other instruments.