11
G
EGH110F941 | EGH112F931 | EGH111F931
Load resistance diagram
EGH110F941
4...20 mA
800
700
600
500
400
300
250
50
200
10
15
20
25
30 35 36 40
Load resistance diagram
W
orking r
esis
tanc
e (Ohm)
Operating voltage (V DC)
Admissible
range
800
700
600
500
400
300
250
50
200
10
15
20
25
30 35 36 40
Load resistance diagram
W
orking r
esis
tanc
e (Ohm)
Operating voltage (V DC)
Admissible
range
NOTE
For 4 ... 20 mA devices, DC voltage must be used
(without residual ripple, see permissible range of load
resistance diagram). Do not use pulsating DC voltage.
Connecting diagram
EGH11xF931
0-10V
Connecting diagram
EGH110F941
4...20 mA
NOTE
At the EGH110F941 variant
the humidity path must necessarily
be connected (pin 2).
SUPPLY VOLTAGE :
For operating voltage reverse polarity protection, a one-way rectifier or
reverse polarity protection diode is integrated in this device variant.
This internal one-way rectifier also allows operating 0 - 10 V devices on AC
supply voltage.
The output signal is to be tapped by a measuring instrument. Output
voltage is measured her against zero potential (O V) of the input voltage!
When this device is operated on
DC supply voltage
, the operating voltage
input UB+ is to be used for 15...36 V DC supply and UB – or GND for
ground wire!
When several devices are supplied by one 24 V
AC voltage supply
, it is to
be ensured that all ”positive“ operating voltage input terminals (+) of the
field devices are connected with each other and all ”negative“ operating
voltage input terminals (–) (= reference potential) are connected together
(in-phase connection of field devices). All outputs of field devices must be
referenced to the same potential!
In case of reversed polarity at one field device, a supply voltage short-
circuit would be caused by that device. The consequential short-circuit
current flowing through this field device may cause damage to it.
Therefore, pay attention to correct wiring!
Connecting scheme
Parallel operation
Circuitry
Circuitry
0...10V
0V/GND
0...10V
0V/GND
Power supply
AC 24V~
0V
DC 15-36V = GND
Connecting scheme
Individual operation
Circuitry
0...10V
0V/GND
V
Power supply
AC 24V~
0V
DC 15-36V = GND
1 2 3 4
230V AC
24V AC/DC
PLC
PC
UB+ 2
4V A
C/DC
Output humidity
[% r
.H.
]
0-1
0V
Output t
emper
atur
e
[°C
]
0-1
0V
UB– GND
1 2 3 4
230V AC
24V DC
PLC
Working
resistance
UB+ 2
4V DC
Output humidity
[% r
.H.
]
4...
20m
A
Output t
emper
atur
e
[°C
]
4...
20m
A
UB– GND