Applications Guide
142
Modline 5
When the Peak Picker function is turned on by using 1 or 2 above, a remote switch, as explained below,
can enable or disable the Peak Picking signal conditioning.
8.6.2
External Switch for Remote Peak Picker Operation
The Modline 5 has a provision for a remote process controlled input switch to be wired to the Violet
and Violet/White twisted wire pair of the Sensor’s interconnecting cable. If Peak Picker signal
conditioning is selected, the remote switch can enable or disable the Peaking action. With no switch or
the switch in maintained in the open position Peaking action is enabled. With the switch closed, peaking
action is disabled and the Sensor continuously indicates actual temperature variations as they occur.
This can be called the Direct operating mode.
A momentary closure of the switch, greater than 0.08 seconds, resets the Peak Picker function to the
current temperature reading. The peaking action begins again when the switch returns to the open
position. Wiring and switch operation for the Peak Picker are described in Section 4
, page
64 of this manual.
Figure 82: Peak Picker Operation
Time
Peak Picker Off
Actual temperature shown as a solid
line.
Indicated temperature tracks changes in
actual temperature, including
interferences in sight path. Limited only
by Response Time of Modline 5.
Tem
perature
Time
Time
Tem
perature
Tem
perature
Peak Picker On Fast Decay
Peak Picker conditioning shown as a
solid line.
Use this setting to concentrate on
temperature trends, and to reduce the
effect of momentary interruptions or
interference in the sight path.
Peak Picker On Slow Decay
Peak Picker conditioning shown as a
solid line.
Use this setting to concentrate on peak
temperature and ignore gaps between
workpieces or interference in the sight
path, but still catch “hot spots” on a
workpiece.
Interference
in sight path
Gap in
workpiece
Hot spot in
workpiece
