13
*
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 !
Schematic diagram
KFTF - xx - U
(Tyr1)
Schematic diagram
**
KFTF - xx - I
(Tyr1)
G
HYGRASGARD
®
KFF ⁄ KFTF ⁄ KFF - SD ⁄ KFTF - SD (± 2,0 %), KFF - 20 ⁄ KFTF - 20 (± 1,8 %)
Rev. 2020 - V26
1 2 3 4
5 6
1 2
0N
Offset
°C
r.H.
Plug
display
DIP switches
multi-range
switching
UB+ 2
4V A
C/DC
Output humidity 0-1
0V in % r
.H.
Output t
emper
atur
e 0-1
0V in °C
UB- GND
Passive
sensor
Offset
Temperature: ± 5 K
Humidity: ± 10% r.H.
1 2 3 4
5 6
1 2
0N
Offset
°C
r.H.
UB+ 24V DC
Output humidity 4...20 mA in % r
.H.
Output t
emper
atur
e 4...20 mA in °C
UB- GND (optional f
or
LCD back
gr
ound lighting)
Plug
display
Passive
sensor
DIP switches
multi-range
switching
Offset
Temperature: ± 5 K
Humidity: ± 10 % r.H.
3-wire
KFF - xx - U
connection
4- or 6-wire
KFTF - U
connection
(passive temperature
sensor)
4- or 6-wire
KFTF - I
connection
(passive temperature
sensor)
4-wire
KFTF - xx - U
connection
3- or 4-wire
KFTF - xx - I
connection** (Transmitter)
2- or 3-wire
KFF - xx - I
connection* (Transmitter)
3-wire
KFF - SD - U
connection
1
2
3
4
–UB-GND
Free
Output humidity in % r.H. 0-10V
+UB 24V AC/DC
4-wire
KFTF - SD - U
connection
1
2
3
4
–UB-GND
Output temperature in °C 0-10V
Output humidity in % r.H. 0-10V
+UB 24V AC/DC
2-wire
KFF - SD - I
connection
(Transmitter)
1
2
3
4
Free
Free
Output humidity in % r.H. 4...20mA
+UB 24V DC
3-wire
KFTF - SD - I
connection
(Transmitter)
1
2
3
4
Output temperature in °C 4...20mA
Output humidity in % r.H. 4...20mA
+UB 24V DC
Free
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
Output temperature in °C 4...20mA
Output humidity in % r.H. 4...20mA
+UB 24V DC
–UB-GND (optional for backlighting)
1
2
3
4
–UB-GND (optional for backlighting)
Free
Output humidity in % r.H. 4...20mA
+UB 24V DC
