Datasheet
13
G
HYGRASGARD
®
RFF ⁄ RFTF
Rev. 2017 - V21 GB
Schematic diagram
RFTF - U - x
Baldur 1
RFTF - U - x with display
Schematic diagram
RFTF - I - x
Baldur 1
RFTF - I - x with display
4- or 6-wire
RFTF - I
connection
(passive temperature
sensor)
3- or 4-wire
RFTF - I
connection **
(Transmitter)
4-wire
RFTF - U
connection
RFTF - U with display
4- or 6-wire
RFTF - U
connection
(passive temperature
sensor)
2- or 3-wire
RFF - I
connection *
(Transmitter)
3-wire
RFF - U
connection
1
2
3
4
–UB-GND
Free
Output humidity in % r.H. 0-10V
+UB 24V AC/DC
1
2
3
4
5
6
Passive element
–UB-GND
Output temperature in °C 0-10V
Output humidity in % r.H. 0-10V
+UB 24V AC/DC
e.g. Pt1000, Ni1000,
LMZ235Z
1
2
3
4
5
6
Passive element
–UB-GND (optional for backlighting)
Output temperature in °C 4–20mA
Output humidity in % r.H. 4–20mA
+UB 24V DC
e.g. Pt1000, Ni1000,
LMZ235Z
1
2
3
4
–UB-GND
Output temperature in °C 0-10V
Output humidity in % r.H. 0-10V
+UB 24V AC/DC
1
2
3
4
–UB-GND (optional for backlighting)
Free
Output humidity in % r.H. 4-20mA
+UB 24V DC
1
2
3
4
Output temperature in °C 4-20mA
Output humidity in % r.H. 4-20mA
+UB 24V DC
–UB-GND (optional for backlighting)
Schematic diagram
RFTF - U - x
Baldur 2
RFTF - U - x with display
6
1 2 3 4
5
+UB 24V AC/DC
Output humidity in % r.H. 0-10V
Output temperature in °C 0-10V
–UB-GND
Plug for display
min. max.min. max.
Offset
°C r.H.
Passive sensor
Offset temperature : ± 5 K
Offset humidity : ± 10% r.H.
Schematic diagram
RFTF - I - x
Baldur 2
RFTF - I - x with display
6 5
4321
+UB 24V DC
Output humidity in % r.H. 4-20mA
Output temperature in °C 4-20mA
- UB-GND (optional
for LCD backlighting)
Plug for display
min. max.min. max.
Offset
°C r.H.
Passive sensor
Offset temperature : ± 5 K
Offset humidity : ± 10% r.H.
5
6
1
2
3
4
°Cr.H .
offset
mode
123
ON
+UB 24V AC/DC
Output humidity
0-10 V in % r.H.
–UB-GND
passive
sensor
Output temperature
0-10 V in °C
Plug for
display
DIP
5
6
1
2
3
4
°Cr.H .
offset
mode
123
ON
+UB 24V DC
Output humidity
4...20mA in % r.H.
–UB-GND(optional for
LCD backlighting
passive
sensor
Output temperature
4...20mA in °C
Plug for
display
DIP