- % SALE %
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality & Flow
- Modbus | Wireless Modbus
- EtherCAT P
- Accessory
Description
Surface contact temperature/ tube contact temperature measuring transducers
THERMASGARD® ALTM1 - 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
Measuring range, temperature
-58...+302°F
Temperature deviation
typically ± 0.4 °F at +77 °F
Sensor
Pt1000, DIN EN 60751, class B
Measuring range
–58...+302 °F
Tmax up to +212 °F (compact variant)
Tmax up to +212 °F (compact variant)
Zero point offset
± 18 °F
Ambient temperature
Measuring transducer –22 … +158°F
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
Process connection
endless metal strap and metal tightener
(included in scope of delivery)
(included in scope of delivery)
Communication
W-Modbus (Wireless Modbus with 2.4 GHz ISM)
Strap dimensions
Ø = 13 - 92 mm (¼ - 3"), L = 12 in
Electrical connection
AWG 24 - 16, via push-in terminal
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
Cable connection
cable gland, plastic
(M 20 x 1.5; with strain relief, exchangeable,
inner diameter 0,3 - 0,5 in) or
M12 connector according to DIN EN 61076-2-101
(optional on request)
(M 20 x 1.5; with strain relief, exchangeable,
inner diameter 0,3 - 0,5 in) or
M12 connector according to DIN EN 61076-2-101
(optional on request)
Cable gland
M 20 x 1.5; with strain relief, replaceable,
inner diameter 0,3 - 0,5 in
inner diameter 0,3 - 0,5 in
Standards
CE conformity,
electromagnetic compatibility according to EN 61326, ETSI 300 328
according to EMC Directive 2014/ 30/ EU, Radio Directive 2014 / 53 / EU
electromagnetic compatibility according to EN 61326, ETSI 300 328
according to EMC Directive 2014/ 30/ EU, Radio Directive 2014 / 53 / EU