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THERMASGARD® MWTM - ModbusCalibratable mean value temperature measuring transducer THERMASGARD® MWTM - Modbus - T3, with Modbus connection, in an impact-resistant plastic housing with quick-locking screws, with flexible sensor rod (0.4...20m, fully active) in a robust protective plastic-coated copper tube, incl. mounting flange, optionally with/ without display, measures temperature (–50...+150 °C). International system of units SI (default) can be changed to imperial (via Modbus). The rod sensor is used to detect the mean temperature (mean value) in gaseous media. It is used in ventilation and air conditioning ducts over the entire crosssection or on a defined length (laid along a meandering route, it uniformly detects the surrounding temperature). For proper mounting of the rod, mounting clamps MK-05-M (accessories) are available. Innovative Modbus sensor with galvanically separated RS485 Modbus interface, selectable bus termination resistance, DIP switch for setting the bus parameters and bus address in current-free state, internal LEDs for telegram status display, two separate push-in terminals and large three-line display (illuminated, with customised programming in the 7-segment range and dot-matrix range). Uses internal diagnostics to detect sensor breakage or sensor short circuit as errors. The error messages can be retrieved via Modbus and are shown on the display. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.
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产品编号 1101-3266
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; Tmin –50 °C, Tmax + 80 °C Zero point offset ± 10 °C Ambient temperature Measuring transducer –30...+70 °C Medium clean air and non-aggressive, non-combustible gases 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 by mounting flange, plastic (galvanised steel optional, see accessories) and mounting clamps MK - 05 - M Sleeve stainless steel, 1.4571, V4A Rod material copper sensor tube, plastic-coated, with spring for buckling protection Probe active over the entire length (averaging) 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 Installation Bending radius > 35 mm admissible vibration load ½ g admissible tensile load < 480N Permissible air humidity < 95 % RH, non-precipitating air 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 |