- % SALE %
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality & Flow
- Modbus | Wireless Modbus
- PowerIO
- EtherCAT P
- Accessory
Description
Showcase humidity and temperature sensor
HYGRASGARD® VFTF - 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 ± 0.4 °F at +77 °F
Measuring range
0...100 % RH (humidity)
-31...+176 °F (temperature)
-31...+176 °F (temperature)
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
Signal filtering
4 s / 32 s
Communication
W-Modbus (Wireless Modbus with 2.4 GHz ISM)
Electrical connection
AWG 24 - 16, via push-in terminal
Sensor
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
with integrated temperature sensor,
low hysteresis, high long-term stability
Sensor protection
probe made of stainless steel, V4A (1.4571), pluggable;
sensor head Ø = 0.67 in, H = approx. 0.1 in;
protective sleeve Ø = 0.4 in, NL = approx. 1 in, M10 x 1.0;
with plastic plug connector Ø = approx. 0.4 in,
NL = approx. 1 in,
sensor head Ø = 0.67 in, H = approx. 0.1 in;
protective sleeve Ø = 0.4 in, NL = approx. 1 in, M10 x 1.0;
with plastic plug connector Ø = approx. 0.4 in,
NL = approx. 1 in,
Cable gland
2x M 20 x 1.5; with strain relief, replaceable,
inner diameter 0.3 - 0.5 in
inner diameter 0.3 - 0.5 in
sensor cable
PVC, LiYY, 4 x 26 AWG,
KL = approx. 6.5 ft
KL = approx. 6.5 ft
Permissible air humidity
< 95 % RH, non-precipitating air
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 class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
Mounting (sensor)
cut-out Ø = 0.43 - 0.59 in, IL = approx. 2 in,
lock nut for fixing is included in the scope of delivery.
lock nut for fixing is included in the scope of delivery.
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