Flexim FLUXUS ADM 8027 User Manual

6 Installation of FLUXUS ADM 8027 FLUXUS ADM 8027, F801, ADM 8127B
UMFLUXUS_F8V4-6-1EN, 2018-10-10 35
6.7.1 Intrinsically Safe Current Output Ex ib
The current output may be fed with max. 28.2 V DC/0.76 W.
If the transmitter is disconnected from the power supply during the measurement:
• the passive current output continues being powered thanks to an external power supply
• the last measured value is output.
In order to check the function of the transmitter:
• the binary output is installed and activated
• the binary output is used as an alarm output.
For the installation and activation of the binary output see chapter 18.
Recommended configuration of the alarm output
If the transmitter is disconnected from the power supply, the binary output indicates an alarm state.
Tab. 7: Circuit of the current output Ex ib
output transmitter external circuit remark
internal circuit connection
Ex ib
ADM 8027C24
ADM 8027LC24
I1: 2 (+)
I1: 1 (-)
U
i
= 28.2 V, P
i
= 0.76 W
U
ext
= 4...28.2 V
U
ext
> 0.021 A
.
R
ext
[Ω] + 4 V
example:
U
ext
= 12 V
R
ext
≤ 380 Ω
binary output (open
collector)
ADM 8027C24
ADM 8027LC24
B1: 6 (+)
B1: 5 (-)
U
i
= 28.2 V, P
i
= 0.76 W
U
ext
= 5...28.2 V
R
c
[kΩ] = U
ext
/I
c
[mA]
I
c
= 1...4 mA
R
ext
is the sum of all ohmic resistances in the circuit (e.g., resistance of the conductors, resistance of the amperemeter/voltmeter).
func (switching condition) ERROR
type (holding behavior) HOLD (NON-HOLD)
mode (switching function) NC CONT.
mA
U
ext
+
+
-
R
c
U
ext
Ref
+
-

Flexim FLUXUS ADM 8027 Specifications

General

Brand	Flexim
Model	FLUXUS ADM 8027
Category	Measuring Instruments
Language	English