Datasheet

14
G
HYGRASGARD
®
RFF ⁄ RFTF Rev. 2017 - V21 GB
NOTE
At transmitters with current output the humidity output (Pin 2)
must categorically be connected !
Connecting diagram
RFTF - U
Output: with ⁄ without Display
0 -10 V
Connecting diagram RFTF - I
Output: with ⁄ without Display
4 ... 20 mA
* 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 !
1
2 3
4
230 V AC
24V AC/DC
PLC
PC
+UB 24V AC/DC
Output humidity in % r.H. 0-10V
Output temperature in °C 0-10V
–UB-GND
1
2 3
4
230 V AC
24 V DC
+UB 24V DC
Output humidity in % r.H. 4...20mA
Output temperature in °C 4...20mA
–UB-GND
PLC
Working
resistance