10
G
HYGRASGARD
®
xx - Modbus - T3
Schematic diagram
address
offset B
A
mode
1 2 3 4 5 6 7 8
ON
DIPA
1 2 3 4 5 6
ON
DIPB
B
A
GND
U+
B
A
GND
U+
1 2 3 4
5 6 7 8
SHD
Plug for
display
Telegram indicator
Reception (LED green)
Error (LED red)
DIP A: Bus address
DIP B: Bus parameters
(Baud rate, parity...)
Offset correction
Shielding
LED (internal status)
HYGRASGARD
®
xx - Modbus - T3
Calibrateable humidity and temperature sensors with Modbus connection.
For more information, please refer to device-specific instructions/data sheet.
TECHNICAL DATA
Power 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:
temperature [°C], relative humidity [% r.H.],
dew point [°C], absolute humidity [g ⁄ m
3
],
mixture ratio [g ⁄ kg], enthalpy [kJ ⁄ kg]
Sensor:
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
Measuring range:
0...100 % r.H. (humidity)
–35... +80 °C (temperature)
depending on the device type
Deviation in humidity:
typically
± 2.0 %
(20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
Deviation in temperature:
typically ± 0.4 K at +25 °C
Zero point offset:
± 10 % r.H. (humidity)
± 5 °C (temperature)
Ambient temperature:
–30…+70 °C
Medium:
clean air and non-aggressive, non-combustible gases
Bus parameters:
can be configured and addressed
via DIP switches
in the absence of current delivery
(under currentless conditions)
Bus interface:
RS 485,
galvanically isolated,
Bus termination activatable via DIP switches.
Up to 32 devices possible in one segment.
In case of a greater number of devices, RS485 transceivers must be used.
Bus protocol:
Modbus (RTU mode), address range 0...
247
selectable
Baud rate:
9600, 19200, 38400 Baud
Status indicator:
LED green = Telegram valid / LED red = Telegram error
Signal filtering:
4 s / 32 s
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), housing cover for display is transparent!
Housing dimensions:
108 x 78.5 x 43.3 mm (Tyr 3 without display)
108 x 78.5 x 45.8 mm (Tyr 3 with display)
Cable connection:
cable gland
, plastic (2x 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)
Electrical connection:
0.2 - 1.5 mm², using push-in terminals
Permissible air humidity:
< 95 % r. H., non-precipitating air
Protection class:
III (according to EN 60 730)
Protection type:
IP 65
(according to EN 60 529)
Standards:
CE conformity, electromagnetic compatibility according
to EN 61326, according to EMC Directive 2014 ⁄ 30 ⁄ EU
Optional:
Display with illumination
, three-line, programmable, cutout approx. 51 x 29 mm (W x H),
for displaying the actual humidity and actual temperature (cyclic)
or a selectable parameter (static)
or an individually programmable display value
address
offset B
A
mode
1 2 3 4 5 6 7 8
ON
DIPA
1 2 3 4 5 6
ON
DIPB
B
A
GND
U+
B
A
GND
U+
1 2 3 4
5 6 7 8
SHD
Plug for
display
Telegram indicator
Reception (LED green)
Error (LED red)
DIP A: Bus address
DIP B: Bus parameters
(Baud rate, parity...)
Offset correction
Shielding
LED (internal status)
Manual offset adjustment
The sensors are pre-set and calibrated at the factory.
For subsequent adjustment of the measured value,
there are two
offset potentiometers
(A ⁄ B) available.
Range of adjustment: approx. ± 5 °C (A) or ± 10 % r.H. (B).
