Calibratable mean value temperature measuring transducer THERMASGARD® MWTM - Modbus - T3 with Modbus connection, flexible, fully active sensor rod and plastic-coated copper protective tube (robust version), housing made from impact-resistant plastic with quick-locking screws.
The rod sensor is used for detecting average temperatures (mean values) in gaseous media, e.g. in ventilation and air conditioning ducts over the entire cross-section, or over a defined length. Laid along a meandering route, it uniformly detects the surrounding temperature as a duct sensor. The mean value sensors are factory-calibrated. Adjustment/ fine adjustment by the user is possible (zero point offset is adjustable).
The MWTM is available in lengths of 0.4...20 m and is supplied with a mounting flange as standard. Mounting clamps MK-05-M are available as optional accessories.
Voltage supply |
24 V AC (± 20 %) and 15…36 V DC |
---|---|
Power consumption | < 1.5 VA/ 24 V DC, < 3.5 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 |
Sensor and rod dimensions |
Ø = 5.0 mm, nominal length NL = 3 m (nominal length optional up to max. 20 m) |
Active length | active along the entire sensor length |
Electrical connection | 0.2 - 1.5 mm2, via push-in terminal |
Housing |
plastic, UV-stabilised, material polyamide, 30 % glass-globe reinforced, with quick-locking screws (slotted/ Phillips head - combination), colour traffic white (similar to RAL 9016) |
Housing dimensions | 108 x 78.5 x 43.3 mm (Tyr 3 without display) |
Cable gland |
2x M 20 x 1.5; with strain relief, exchangeable, inner diameter 8 - 13 mm |
Installation |
observe minimum bending radius of 35 mm and permissible vibration load, ≤ ½ G |
Permissible air humidity | < 95 % r. H., 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 |
Type | Item No. | Price | |||
---|---|---|---|---|---|
KA-2 | 1906-1200-0000-100 | 0,00 € | |||
MF-06-K | Mounting flange, plastic | 7100-0030-1000-000 | 5,16 € | ||
MF-06-M | Metal mounting flange | 7100-0030-5000-000 | 8,06 € | ||
KRD-04 | Capillary tube gland bracket | Capillary tube gland bracket for FST and MWTF/MWTM for installation in ducts / sheet metal walls | 7100-0030-7000-000 | 7,52 € | |
MK-05-M | Mounting brackets, galvanised steel | Galvanised steel mounting brackets | 7100-0034-0000-000 | 8,33 € |
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