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Description
Mean value temperature measuring transducer / rod sensor
THERMASGARD® MWTM
Calibratable mean value temperature measuring transducer THERMASGARD® MWTM (rod sensor) with eight switchable measuring ranges, continuous output, fully active flexible sensor rod for mean value measurement, plastic-coated copper protective tube (sturdy version), housing made from impact-resistant plastic and housing cover with quick-locking screws.
This sensor is used for the detection of 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 rod sensor is available in lengths of 0.4...20 m and is delivered as standard with a mounting flange. For proper mounting of the rod, mounting clamps MK-05-M (accessories) are available. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.
Technical details
Power consumption
< 1,0 W/ 24 V DC
< 2,2 VA/ 24 V AC
< 2,2 VA/ 24 V AC
Voltage supply
15...36 V DC
depending on working resistance, residual ripple stabilised ± 0.3 V
depending on working resistance, residual ripple stabilised ± 0.3 V
Working resistance
Ra (ohm) = (Ub -14 V)/ 0.02 A for I variant
Sensor
Pt1000, DIN EN 60751, class B
Connection type
2- or 3-wire connection
Ambient temperature
Measuring transducer –30...+70 °C
Sleeve
stainless steel, 1.4571, V4A
Probe
active along the entire sensor length
Electrical connection
0.14 - 1.5 mm²
via terminal screws on circuit board
via terminal screws on circuit board
Housing dimensions
72 x 64 x 37,8 mm (Tyr 1)
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
max. inner diameter 10.4 mm
Installation
observe minimum bending radius of 35 mm and
permissible vibration load, ½ G
permissible vibration load, ½ G
Permissible air humidity
< 95 % RH, non-precipitating air
Output
4...20 mA
Protection class
III (according to EN 60 730)
Measuring ranges
multi-range switching
with 8 switchable measuring ranges,
see table (other ranges optional)
Tmin –30 °C, Tmax +80 °C
with manual zero point correction (± 10 K)
with 8 switchable measuring ranges,
see table (other ranges optional)
Tmin –30 °C, Tmax +80 °C
with manual zero point correction (± 10 K)
Process connection
by mounting flange, plastic
(galvanised steel optional, see accessories)
and mounting clamps MK - 05 - M
(galvanised steel optional, see accessories)
and mounting clamps MK - 05 - M
Rod material
copper sensor tube, plastic-coated,
with spring for buckling protection
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)
nominal length NL = 3 m
(nominal length optional up to max. 20 m)
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 10.4 mm) or
M12 connector according to DIN EN 61076-2-101 (optional on request)
M12 connector according to DIN EN 61076-2-101 (optional on request)
Protection type
IP 65 (according to EN 60 529) Housing tested,
TÜV SÜD, Report No.713139052 (Tyr 1)
TÜV SÜD, Report No.713139052 (Tyr 1)
Standards
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU