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THERMASGARD® ALTM1-Modbus-T3 LCDCalibratable surface-contact temperature measuring transducer (compact variant) THERMASGARD® ALTM 1 - Modbus - T3 with Modbus connection, in an impact-resistant plastic housing with quick-locking screws, pipe feeder, incl. strap, optionally with/ without display, measures temperature (–50...+150 °C). International system of units SI (default) can be changed to imperial (via Modbus). The pipe surface-contact sensor is used to detect the temperature on lines, pipes (e.g., cold and warm water) or on heating sections for heating control.
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Voltage supply 24 V AC (± 20 %) and 15…36 V DC Power consumption < 1.2 W/ 24 V DC; < 1.8 VA/ 24 V AC Temperature deviation typically ± 0.2 K at +25 °C Sensor Pt1000, DIN EN 60751, class B Measuring range –50...+150 °C Tmax up to +100 °C (compact variant) Zero point offset ± 10 °C Ambient temperature Measuring transducer –30...+70 °C Error detection sensor breakage, sensor short circuit Bus protocol Modbus (RTU mode), address range 0...247 selectable Signal filtering 0,3 s / 1 s / 10 s Process connection endless metal strap and metal tightener (included in scope of delivery) Strap dimensions Ø = 13 - 92 mm (¼ - 3"), L = 300 mm Electrical connection 0.2 - 1.5 mm2, via push-in terminal Cable connection cable gland, plastic (2x M 20 x 1.5; with strain relief, exchangeable, inner diameter 8 - 13 mm) or M12 connector according to DIN EN 61076-2-101 (optional on request) Cable gland 2x M 20 x 1.5; with strain relief, exchangeable, inner diameter 8 - 13 mm Permissible air humidity Protection class III (according to EN 60 730) Protection type IP 65 (according to EN 60 529)* Standards CE conformity, electromagnetic compatibility according to EN 61326, according to EMC Directive 2014/ 30/ EU Internal diagnostics Error 1 at sensor breakage Error 2 at sensor short circuit |
