TROUBLESHOOTING DIAGRAM
YES
NO
Display
lit & ok?
NO
CONTACT
FACTORY
Turn power
off, then
back on
Ok
Now?
Turn power off,
unplug display &
plug it back in.
Turn power back on.
Ok
Now
?
NO
YES
YES
Reprogram
for proper flow
& totalizer units
Did unit
program
ok?
Try programming
again. If unit will
not accept changes,
contact factory
Check connector & label
coming from motor on
servo board to recorder
circuit board. Make sure
all connector pins are
properly mated on correct
motor output.
Also check for mechanical
binding of belt, motor and
pen. Make sure that pen
arm transport tie down is
removed from unit.
Increase
damping.
See IOM
page 10.
Ok
Now?
CONTACT
FACTORY
Will
pen arm
move with
input now?
CONTACT
FACTORY
YES
GO TO NEXT PAGE
Do
pen arm &
display agree
with input?
Supply known input
value & compare with
display & pen position.
Recapture pen
arm zero & span.
See IOM pg 11.
Does the
display / pen
jump or jerk?
START
ARE THE PEN
ARM, FLOW
DISPLAY &
TOTALIZER
OK?
NO
Display
show legible
characters?
Flow &
total
units
ok?
Pen arm
moves?
Do
pen arm &
display agree
with input?
YES
YES
YES
YES
NO
NO
NO
NO
YES
NO
NO
YES
YES
Recapture pen arm
zero & pen arm span.
See IOM pg 11.
Will
pen arm
move with
input?
YES
YES
NO
YES
NO
NO
NO
YES
NO
TO NEXT PAGE
Check 117 VAC &
connections, power
switch, & fuse
Display
lit & ok?
20
