*
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
Schematic diagram
RFTF - U - x
RFTF - U - x with display
Schematic diagram
RFTF - I - x
RFTF - I - x with display
4- or 6-wire
RFTF - I
connection
(passive temperature
sensor)
4-wire
RFTF - U
connection
RFTF - U with display
3- or 4-wire
RFTF - I
connection
**
(Transmitter)
3-wire
RFF - U
connection
2- or 3-wire
RFF - I
connection
*
(Transmitter)
4- or 6-wire
RFTF - U
connection
(passive temperature
sensor)
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.
6 5
4
3
2
1
+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.
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)