OPERATOR’S MANUAL
Control Point
®
11001-1489-201702 Rev B
SYSTEM CALIBRATION / 75
CALIBRATION SYSTEM RESPONSE (F11)
These constants adjust the response time of the Control Point
®
system to
the hydraulic and mechanical systems. This procedure determines the
System Response (SYS RSPNS) and related constants (VALV BOOST,
PWM OFFSET, and AFILT) for each of the three control channels (granular,
liquid, and spinner).
Constants normally vary slightly each time a SYSTEM RESPONSE
CALIBRATION is run. Manual fine-tuning for optimum performance is
permissible (See paragraph "Fine-tuning System Response Parameters").
To maintain a performance history, always record new constants on the
CALIBRATION DATA RECORD sheets each time a routine is run or
fine-tuned.
– GRANULAR - During calibration, a set of values for SYS RSPNS,
VALV BOOST, PWM OFFSET, and AFILT automatically calculate,
store, and display on the GRANULAR CONFIGURATION screens
for all (up to four) granular materials.
– LIQUID PR-WET - The pre-wet spray bar and anti-icing boom
liquids require separate procedures due to differences in
flowmeters, nozzles, and plumbing components. Calibration
establishes a similar set of parameters as above for all pre-wet
liquid materials.
– LIQUID ANTI-ICING - Calibration establishes a similar set of
parameters as above for all anti-ice materials used on the system.
– SPINNER - Calibration determines the spinner channel parameters
and correlates the fully clockwise position of the WIDTH ADJUST
knob with the 100% mark on the SPREAD WIDTH bar display.
GRANULAR SYSTEM RESPONSE CALIBRATION
Liquid prewet and liquid anti-ice channels are very similar and, therefore,
not specifically described or shown.
1. Press F11 to obtain SYSTEM RSPN CALIBRATION menu. Four
choices display, refer to (Figure 46).
2. Press 1 to select GRANULAR. A warning screen states CALIBRATION
WILL ACTIVATE THE SELECTED CHANNEL when the test begins.
3. When ready to start, press “R” on the keyboard. A screen appears to
indicate CALIBRATING. When finished, a screen appears stating SYS
RSPNS DONE.
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