Mean value temperature measuring transducers MWTM - Modbus - T3
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Mean value temperature measuring transducers THERMASGARD® MWTM - Modbus - T3

Product group: WG01

Low availability.

Usually ships in 3 to 5 days
247,56 €
294,60 € incl. VAT + shipping

Description

Mean value temperature measuring transducers THERMASGARD® MWTM - Modbus - T3
Calibratable 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.

Technical details

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
Data points
température [°C] [°F]
Sensor
Pt1000, DIN EN 60751, class B
Measuring range
– 50...+ 150 °C; Tmin –50 °C, Tmax + 80 °C
Accuracy
typically ± 0.2 K at +25 °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
protective tube made from copper, plastic-coated,
with anti-kink spring and sleeve, stainless steel V4A (1.4571)
Probe
active over the entire length
(averaging)
Electrical connection
0.2 - 1.5 mm², via push-in terminal
Cable connection
cable gland, plastic
(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)
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)
Cable gland
2x M 20 x 1.5; with strain relief, replaceable,
inner diameter 8 - 13mm
Installation
Bending radius > 35 mm
admissible vibration load 0,5 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)*
Internal diagnostics
Error 1 at sensor breakage
Error 2 at sensor short circuit