TECHNICAL DESCRIPTION
ULTRAFLOW
®
54 and 34
5512-385 GB/02.2014/Rev. H1
56
9.10.2
Hold function
When the Hold input is activated (high level applied to input), counting stops.
When the Hold signal is removed (low level applied to input), counting restarts.
The counters can also be reset by pressing the right key on the front panel (Reset).
Hold input
Galvanically isolated
Input protection
Against reversed polarity
“Open input”
Count (see
Figure 38
)
Figure 38
9.10.3
Push-button functions
Figure
39
.
The left push button shifts between readings/counts of the two flow sensor inputs. In the display M1
and M2 respectively indicate the currently displayed flow sensor inputs/counters.
Figure 40. The right push-button resets both counters (M1 and M2).
9.10.4
Using the PULSE TESTER
The PULSE TESTER can be used as follows:
Standing start/stop of flow sensor using the integral pulse counters.
Standing start/stop of flow sensor using the pulse outputs for external test equipment.
Flying start/stop of flow sensor using the integral counters controlled by external equipment (Sample &
Hold).
Flying start/stop of flow sensor using the pulse outputs controlled by external equipment (Sample & Hold).