7 Connection
FLUXUS G831ST-HT
7.3 Outputs
61
UMFLUXUS_G831ST-HTV1-0EN, 2021-06-01
Tab. 7.7:
Output circuits
output
transmitter
external circuit
explanation
internal circuit
connection
current output Ix,
intrinsically safe, passive
U
i
= 29 V
I
i
= 100 mA
P
i
= 0.725 W
C
i
= 1 nF
L
i
= 50 nH
U
ext
≤ U
i
U
ext
> 0.024 A ·
[Ω] + 9 V
adjustable fault current (no valid
measured value, no
measurement):
I
fault
= 3.2…24 mA
hardware fault current:
I
fault
= 3.2…3.5 mA
current output Ix/HART,
intrinsically safe, passive
U
i
= 29 V
I
i
= 100 mA
P
i
= 0.725 W
C
i
= 1 nF
L
i
= 50 nH
U
ext
≤ U
i
U
ext
> 0.022 A ·
[Ω] + 9 V
adjustable fault current (no valid
measured value, no
measurement):
I
fault
= 3.5…22 mA
hardware fault current:
I
fault
= 3.2…3.5 mA
R
ext
is the sum of all ohmic resistances in the circuit (e.g., resistance of the conductors, resistance of the ammeter/voltmeter).
The number, type and connections of the outputs depend on the order.
For the terminal assignment and connection designation of the outputs, see annex D.
x+
x-
mA
U
ext
+
-
R
ext
max
ƒ
G
x+
x-
ƒ
G
U
ext
mA
+
-
R
ext
max
