Peak Picker - Ametek LAND IQ Series User Manual

series

7.2 Peak Picker

The Peak Picker function can be used to monitor the highest temperature
measured by the thermometer. This feature is useful especially for moving
targets and/or where the target is obscured partially by moving machinery.
The Peak Picker time function utilises the following features:
Mode - In 'Reset' mode, at the end of the 'OFF' delay the temperature output
signal falls to 'under-range', until the temperature input next rises above the
threshold level. In 'Hold' mode, at the end of the 'OFF' delay the temperature
output value is held constant until the temperature input next rises above the
threshold level.
Threshold - Temperature above which the Peak Picker is active, used in
conjunction with the ON and OFF delay. (Tmin° to Tmax°)
Decay Rate - A user-adjustable value at which the stored temperature output
signal decays.
ON Delay - Time period between the temperature rising above the threshold
level and the peak picker function switching on.
OFF Delay - Time period between the temperature falling below the threshold
level and the peak picker function switching off.
Time
Fig. 7-2 Graphical representation of the Peak Picker time function
7 - 2
'ON' Delay
Adjustable decay rate
Threshold level
Fixed Spot Thermometer
'Hold'
mode
'OFF' Delay
'Reset'
mode
User Guide