- % SALE %
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality & Flow
- Modbus | Wireless Modbus
- PowerIO®
- EtherCAT P
- Accessory
Description
Mean value temperature measuring transducers
THERMASGARD® MWTM - Modbus - T3
W-Modbus is a wireless-based further development of the proven Modbus
standard for the wireless connection of Modbus-enabled sensors,
controllers and devices. W-Modbus devices communicate via a wireless
radio link from LumenRadio - independently of the in-house Wi-Fi and
without leaving the proven protocol standards. Thanks to the reliable
and interference-resistant wireless network, entire buildings can be
networked and the majority of Modbus RTU cables can be replaced.
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
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
Zero point offset
± 10 °C
Ambient temperature
Measuring transducer –30...+70 °C
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Error detection
sensor breakage, sensor short circuit
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
address range 0...247 selectable
Signal filtering
0,3 s / 1 s / 10 s
Sleeve
stainless steel, 1.4571, V4A
Rod material
copper sensor tube, plastic-coated,
with spring for buckling protection
with spring for buckling protection
Probe
active over the entire length
(averaging)
(averaging)
Communication
W-Modbus (Wireless Modbus with 2.4 GHz ISM)
Electrical connection
0.2 - 1.5 mm², via push-in terminal
Cable gland
2x M 20 x 1.5; with strain relief, replaceable,
inner diameter 8 - 13mm
inner diameter 8 - 13mm
Installation
Bending radius > 35 mm
admissible vibration load ½ g
admissible tensile load < 480N
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)*
Internal diagnostics
Error 1 at sensor breakage
Error 2 at sensor short circuit
Error 2 at sensor short circuit
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
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)
(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)
Standards
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU, Radio Directive ETSI 300 328 V2.2.2
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU, Radio Directive ETSI 300 328 V2.2.2