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7.2 APM Programming Procedure
Figure 7-2
APM, Top View
The output range of the APM is determined by choosing two endpoints within the active stroke length of
the transducer and using the two push-buttons to assign a voltage to each point. The two endpoints are
called Set Point 1 (SW1) and Set Point 2 (SW2). Any voltage from -10 volts to +10 volts may be assigned
to either point; the APM will automatically scale the output to the specified range. Set Point 1 must be the
set point closest to the head electronics.
! CAUTION !
IMPORTANT: Before beginning the
programming procedures, supply
power to the APM for a full 5 minutes.
This will allow all components to sta-
bilize and ensure set point accuracy.
! CAUTION !
If the APM is being programmed for
the first time, the analog output at
power-up will be near zero volts. The
programming steps are the same in
this case, but the analog output will
return to zero volts until valid infor-
mation is stored for both Set Point 1
and Set Point 2. When both Set
Points have been programmed, the
transducer will enter normal operat-
ing mode and produce an analog
output scaled according to the infor-
mation permanently stored in the
APM's memory.
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