Endress+Hauser Proline Promass 83 - Page 77

Device Functions Proline Promass 83 MODBUS RS485 7 Block OUTPUTS
Endress+Hauser 77
OUTPUT SIGNAL
(continued)
4207 Example for active output circuit (ACTIVE):
With an active circuit, the internal power supply is 24 V.
The frequency output is short-circuit proof.
A0004691
m = 24 V DC internal power supply
n = Short-circuit proof output
The signal levels are to be seen as analogous to the passive circuit.
The following applies for the output configuration ACTIVE-POSITIVE:
In the quiescent state (at zero flow), the output signal level at the terminals is 0 V.
A0004694
In the operating status (flow present), the output signal level changes from 0 V to
a positive voltage level.
A0004692
The following applies for the output configuration ACTIVE-NEGATIVE:
In the quiescent state (at zero flow), the output signal level at the terminals is at a
positive voltage level.
A0004693
In the operating status (flow present), the output signal level changes from a
positive voltage level to 0 V.
A0004710
Function description
OUTPUTS → PULSE/FREQUENCY OUTPUT 1 → CONFIGURATION (FREQUENCY)
➀
➁
+
-
=
1
5
8 3
7
U
t
24 V
0V
U
t
24 V
0V
U
t
24 V
0V
t
U
24 V
0V