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Calibratable tube contact temperature measuring transducer THERMASGARD® ALTM 2 with eight switchable measuring ranges, internal or remote sensor, continuous output, strap and terminal box enclosure made of impact-resistant plastic, enclosure cover with quick-locking screws, with ⁄ without optional display. The surface-contact sensor is used for temperature detection on lines, pipes (e.g. cold and hot water) or on heating sections for heating system control. The tube sensors are factory-calibrated. Adjustment ⁄ fine adjustment by the user is possible (zero point offset is adjustable).
|Voltage supply||24 V AC ⁄ DC (± 10 %)|
< 1,0 VA ⁄ 24 V DC
< 2,2 VA ⁄ 24 V AC
|Temperature deviation||typically ± 0.2 K at +25 °C|
|Sensor||Pt1000, DIN EN 60751, class B|
|Connection type||2- or 3-wire connection|
multi-range switching with 8 switchable measuring ranges,
(other ranges optional)
detached sensor variant: Tmax over 100 °C, operating range –50... +150 °C;
with manual zero point correction (± 10 K)
|Ambient temperature||Measuring transducer –30...+70 °C|
endless metal strap and metal tightener
(included in scope of delivery)
≥ 100 MΩ,
at +20 °C (500V DC)
|Strap dimensions||Ø = 13 - 92 mm (¼ - 3"), L = 300 mm|
|Electrical connection||0.14 - 1.5 mm² via terminal screws|
material polyamide, 30 % glass-globe-reinforced
colour traffic white (similar to RAL 9016)
ALTF 02 with snap-on lid,
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 6 mm
|Connection cable||silicone, SiHF, 2 x 0.25 mm², KL = 1.5 m|
|Permissible air humidity||< 95 % r. H., non-precipitating air|
|Protection class||III (according to EN 60 730)|
|Protection type||IP 43 (according to EN 60 529)|
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014 ⁄ 30 ⁄ EU
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