S+S Regeltechnik HYGRASGARD RFF Series Operating Instructions, Mounting & Installation page 13

G
®
HYGRASGARD
Schematic diagram
(Baldur 1 )
1 2
Output temperature
0 -10 V in °C
–UB-GND
passive
sensor
6 5
3-wire
connection
+UB 24V AC/DC
1
Output humidity in % r.H. 0-10V
2
Free
3
–UB-GND
4
4-wire
RFTF - U with display
connection
1 +UB 24V AC/DC
Output humidity in % r.H. 0-10V
2
Output temperature in °C 0-10V
3
–UB-GND
4
*
2-wire connection for devices with ⁄ without display (not illuminated)
3-wire connection for devices with illuminated display
**
3-wire connection for devices with ⁄ without display (not illuminated)
4-wire connection for devices with illuminated display
At the I variant the humidity path must necessarily be connected !
RFF ⁄ RFTF
RFTF - U - x with display
Plug for
display
r.H. °C
offset
RFF - U 2- or 3-wire
connection
1
2
3
4
RFTF - U 3- or 4-wire
connection
1
2
3
4
RFTF - U - x Schematic diagram
(Baldur 1 )
(optional for
LCD backlighting
passive
sensor
RFF - I
*
(Transmitter)
+UB 24V DC
Output humidity in % r.H. 4...20mA
Free
–UB-GND (optional for backlighting)
RFTF - I
**
(Transmitter)
+UB 24V DC
Output humidity in % r.H. 4...20mA
Output temperature in °C 4...20mA
–UB-GND (optional for backlighting)
13
1 2
Output temperature
4...20mA in °C
–UB-GND
r.H. °C
offset
6 5
4- or 6-wire
connection
+UB 24V AC/DC
1
Output humidity in % r.H. 0-10V
2
Output temperature in °C 0-10V
3
–UB-GND
4
Passive element
5
e.g. Pt1000, Ni1000,
6
LMZ235Z
4- or 6-wire
connection
+UB 24V DC
1
Output humidity in % r.H. 4...20mA
2
Output temperature in °C 4...20mA
3
–UB-GND (optional for backlighting)
4
5 Passive element
e.g. Pt1000, Ni1000,
6
LMZ235Z
Rev. 2020 - V23
RFTF - I - x
RFTF - I - x with display
Plug for
display
RFTF - U
(passive temperature
sensor)
RFTF - I
(passive temperature
sensor)