Phonetics Sensaphone 800, User Manual

Page: 122 / 136

Sensaphone
®
Model 800 User’s Manual
119
Problem
Cause
Solution
1.
Can’t
program
temperature
limits;
or
the
unit
won’t
read
the
temperature
sensor.
2.
The
temperature
reading
is
-20°
F
or
-30°
C.
3.
Temperature
reads
150°
F
or
65°
C.
4.
Temperature
reading
is
inaccurate.
The
zone
isn’t
configured
to
read
a
tempera
-
ture
sensor.
The
temperature
sensor
has
been
disconnected
or
has
broken
wires.
Temperature
sensor
wires
are
touching
or
have
shorted.
a)
Temperature
sensing
may
be
affected
by
a
source
of
ambient
heat
(ie.,
direct
sunlight,
or
heat
duct
proximity).
b)
Temperature
may
require
calibration.
c)
The
unit
is
using
the
wrong
temperature
scale
(Fahrenheit
vs.
Celsius).
Press
SET
and
CONFIGURE
to
program
the
zone.
(See
Section
5.1.1
for
more
information
on
configuring
zones.)
Examine
the
wires
to
temperature
sensor
and
connect
or
replace
wiring.
Verify
and
correct
wiring.
Try
moving
the
unit
to
a
different
location.
After
moving
or
placing
the
unit
away
from
ambient
heat
sources,
the
temperature
may
be
calibrated
to
offset
inaccurate
normal
reading
by
several
degrees.
Refer
to
Chapter
5,
Section
5.6.
Verify
temperature
scale.
Refer
to
Chapter
5,
Section
5.5.
Temperature
Monitoring: