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Description
Surface contact temperature sensor/ surface temperature sensor
THERMASGARD® OFTF
Small surface contact resistance thermometre in the aluminium enclosure (cable sensor).
The THERMASGARD® OFTF surface temperature sensor device is used for temperature detection on straight and slightly curved surfaces, e.g. for surface temperature measurement on windows, for monitoring the formation of condensation or as a heating surface sensor e.g. on windows or walls.
Technical details
Connection type
2-wire connection
Measuring range
–22...+221 °C
Insulating resistance
100 MΩ,
at +68 °F (500V DC)
at +68 °F (500V DC)
Dimensions
8 x 8 x 50 mm
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Sensor
KTY81-210
Testing current
< 2.0 mA
Process connection
attachment to the surface to be measured through
fixing hole in the sensor head or by suitable adhesive
fixing hole in the sensor head or by suitable adhesive
sensor cable
PVC; 5 ft, LiYY, 2 x 24 AWG,
ends stripped with wire end sleeves
(optional with silicone cable SiHF, up to +356 °F)
ends stripped with wire end sleeves
(optional with silicone cable SiHF, up to +356 °F)
Protection type
IP 65 (according to EN 60 529) humidity-tight stamped
IP 68 (optional watertight compound-filled) rolled
IP 68 (optional watertight compound-filled) rolled