Technical Data - S+S Regeltechnik HYGRASGARD MODBUS Notice D'instruction

G
®
HYGRASGARD
Calibrateable humidity and temperature sensors with Modbus connection.
For more information please refer to device-specific instructions.

TECHNICAL DATA

Voltage supply:
Power consumption:
Sensor:
Measuring range:
Zero point offset:
Ambient temperature:
Medium:
Bus parameters:
Bus interface:
Bus protocol:
Baud rate:
Status indicator:
Signal filtering:
Display:
MODBUS | Configuration
24 V AC (± 20 %) and
15...36 V DC (± 10 %)
< 1 VA ⁄ 24 V DC
< 2.2 VA ⁄ 24 V AC
digital humidity sensor
with integrated temperature sensor,
small hysteresis, high long-term stability
0...100 % r.h. (humidity)
– 35...+ 80 °C (temperature)
depending on the type of device
± 10 % r.h. (humidity)
± 10 °C (temperature)
– 30...+ 70 °C
clean air and
non-aggressive, non-combustible gases
can be configured and addressed
via DIP switches
in the absence of current delivery
(under currentless conditions)
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, °C
RS 485 transceivers must be used.
Modbus (RTU-Mode)
Address range 0...247 selectable
Plug for
display
9600, 19200, 38400 Baud
LED green = Telegram valid
LED red = Telegram error
4 s / 32 s
The Modbus interface allows the display to be
individually configured both in the 7-segment
area and in the dot-matrix area.
Schematic diagram
ON DIP A
1 2 3 4 5 6 7 8
r.H.
ON DIP B
offset
1 2 3 4 5 6
1 2 3 4 5
Zero point calibration
The sensors are preset and calibrated at the factory.
Adjustment is possible using the two offset potentio-
meters.
Range of adjustment: approx. ± 10 °C or ± 10 % r.H.
10
Rev. 2016 - V12 GB intro
HYGRASGARD
ON
1 2 3 4 5 6 7 8
°C r.H.
ON DIP B
offset
1 2 3 4 5 6
Plug for
display
1 2 3 4 5
DIP A: Bus address
DIP B: Bus parameters
(Baud rate, parity ...)
Telegram indicator
Reception (LED green)
Error (LED red)
LED (internal status)
Offset correction
temperature: ± 10°C
°C
Offset correction
humidity: ± 10% r.H.
r.H.
Plug for display
contact is
on the right side
®
MODBUS
DIP A
L
°C
r.H.