Track And Hold - Ametek Land SYSTEM 4 User Manual

User Guide

5.2 Track and Hold

Time
0V
Command
Command signal = Closure of potential-free contacts,
Fig. 10 Graphical representation of the Track and Hold time function
Refer to Fig. 10. The Track and Hold time function is useful especially
for measuring intermittent processes e.g. items on a conveyor belt. The
presence of a 'hot' object can be used to activate the 'Track' function, which
causes the output to display the temperature of the object. When the object
moves from the measurement area, the 'Track' function can be switched off
and the temperature value held until the next 'hot' object appears.
The Track and Hold function is controlled via the CMD (Command) input. See
3.3.2.
Track Hold
TTL level (0 to 5V)
or 0 to 24V
Landmark for Profibus
+V
Track Hold
s/c = Hold
+5V = Track
+24V = Track
0V = Hold
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