Für jede Anwendung die richtige Lösung [Translate]
THERMASGARD ® ALTF 1 Surface contact sensors are electric contact thermometers used for surface temperature measurement on solids, having at least one so-called contact area that is brought into contact with the surface to be measured. The surface contact temperature sensor ALTF-1 with connecting cable and passive output determines the temperature of a medium flowing inside a pipe (e.g. the water temperature) via the surface temperature. The ALTF 1 is a tube contact resistance thermometer including a strap and an axial sensor tube for temperature detection on piping and tubes (e.g. cold and hot water), or on heating trains for heating system control.
|Connection type||2-wire connection|
|Testing current||< 2.0 mW|
–35...+105 °C PVC
–35...+180 °C silicone
(Tmax NTC = +150 °C, Tmax LM 235 Z = +125 °C)
endless strap and metal tightener
(included in the scope of delivery)
≥ 100 MΩ,
at +20 °C (500V DC)
|Strap dimensions||Ø = 13 - 92 mm (¼ - 3"), L = 300 mm|
stainless steel, 1.4571, V4A,
including pre-bent contact plate
PVC; 1.5 m, LiYY, 2 x 0.25 mm²,
ends stripped with wire end sleeves
|Permissible air humidity||< 95 % r. H., non-precipitating air|
|Protection class||III (according to EN 60 730)|
IP 65 (according to EN 60 529) humidity-tight stamped
IP 68 (optional watertight compound-filled) rolled
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