Endress+Hauser Proline t-mass 65F - Page 32

11 Group PULSE/FREQUENCY OUTPUT Device Functions Proline t-mass 65
32 Endress+Hauser
OUTPUT SIGNAL
(continued)
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 or minimum temperature), the output signal level at
the terminals is 0 V.
A0004694
In the operating status (flow or temperature 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 or minimum temperature), the output signal level at
the terminals is at a positive voltage level.
A0004693
In the operating status (flow or temperature present), the output signal level changes
from a positive voltage level to 0 V.
A0004710
Function description PULSE/FREQUENCY OUTPUT
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