Accutrol Apex Premier, Installation, Operation & Maintenance Manual, Page: 19 / 61

T-APM - Apex Premier F
UME
H
OOD
M
ONITOR
T-APM 0133MAN00015 - Rev J ECN - JUL 2017
Page 19 of 61
Calibration of the APM
Step 4b: Verify New Reading
The next displayed screen, [SCREEN 18K] , will show a face velocity reading for the given position of the
sash at that moment. It is a live reading and varying the sash position will vary the reading as expected.
If the new readings for the high velocities (sash in a minimum position) are correct as displayed, press
ACCEPT , if not, press RETRY to try again or CANCEL to quit. Note: the low face velocity readings do not
change as the only adjusted point was for the high velocity readings.
Step 5b: Low Velocity Calibration Point Adjustment
After selecting LOW VEL. CAL POINT , the APM will ask for an offset value to move the calibration point
by
[SCREEN 17K]
. This value will be added (or subtracted when a negative number is entered) to the
calibration point obtained when the two point calibration was originally performed. Using the plus and
minus buttons [

or

] enter a positive or negative offset value and press ACCEPT .
Step 6b: Verify New Reading
The next displayed screen,
[SCREEN 18K]
, will show a face velocity reading for the given position of the
sash at that moment. It is a live reading and varying the sash position will vary the reading as expected.
If the new readings for the low velocities (sash in a full open position) are correct as displayed, press
ACCEPT
, if not, press
RETRY
to try again or
CANCEL
to quit. Note: the high face velocity readings do
not change as the only adjusted point was for the low velocity readings.
Step 7b: Exiting Out of the Calibration Adjustment Menu
On the TWO POINT CALIBRATION ADJUSTMENT main screen, [SCREEN 15K] select
EXIT
to go back to the
CALIBRATION MAIN MENU , [SCREEN 1K] .