- % SALE %
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality & Flow
- Modbus | Wireless Modbus
- PowerIO
- EtherCAT P
- Accessory
Description
On-wall- humidity- and temperature sensors
HYGRASGARD® AFTF - 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
curent-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 and
dot-matrix range). 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
Data points
Temperature [°F], relative humidity [% RH],
dew point [°F], absolute humidity [gr/ft³],
mixture ratio [gr/lb], enthalpy [Btu/lb]
dew point [°F], absolute humidity [gr/ft³],
mixture ratio [gr/lb], enthalpy [Btu/lb]
Deviation of humidity
typical ± 2.0 % (20…80 % RH); at + 25 °F, otherwise ± 3.0 %
Temperature deviation
typically ± 0.7 °F at +77 °F
Sensor protection
plastic sinter filter, Ø 0.55 in, L = 1 in, exchangeable
Measuring range
0...100 % RH (humidity)
-31...+176 °F (temperature)
-31...+176 °F (temperature)
Measuring ranges
-31...+176 °F
0...100 % RH
0...100 % RH
Zero point offset
± 10 % RH (humidity)
± 9 °F (temperature)
± 9 °F (temperature)
Ambient temperature
-22...+158 °F
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
address range 0...247 selectable
Communication
W-Modbus (Wireless Modbus with 2.4 GHz ISM)
Process connection
by screws
Sensor
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
with integrated temperature sensor,
low hysteresis, high long-term stability
Electrical connection
AWG 24 - 16, via push-in terminal
Long-term stability
± 1 % per year
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)*
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)
Protection type housing
IP 65
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