Installation
5.4.4
Trigger
and
Hold
Function
The
FTC3
input
can
be
used
as
external
trigger
in
conjunction
with
the
software
trigger
mode
setting
“Trigger”
or
“Hold”.
External switch:
- contact relay,
- transistor,
- TTL gate, …
Figure
17:
Wiring
of
FTC3
as
External
Input
Trigger:
A
logical
low
signal
at
the
input
FTC3
will
reset
the
peak
or
valley
hold
function.
As
long
as
the
input
is
kept
at
logical
low
level
the
software
will
transfer
the
actual
object
temperatures
toward
the
output.
At
the
next
logical
high
level,
the
hold
function
will
be
restarted.
Temp
object temperature
output temperature
FTC3
Figure
18:
FTC3
for
Resetting
the
Peak
Hold
Function
Time
28
MID
