Inputs
MI3
43
7.4
Trigger/Hold
Function:
Trigger/Hold
Signal:
digital low/high
Terminal:
FTC3, GND
The FTC3 input can be used as an external trigger functioning as “Trigger” or “Hold”. All sensing
heads are effected by the FTC3 input at the same time.
Figure 28: Wiring of FTC3 as Trigger/Hold
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.
Figure 29: FTC for Resetting the Peak Hold Function
Hold:
This mode acts as an externally generated hold function. A transition at the input FTC3 from
logical high level toward logical low level will transfer the current temperature toward the output.
This temperature will be written to the output until a new transition from high to low occurs at the
input FTC3.
object temperature
output temperature
FTC3
Temp
Time
1.800.868.7495
