Rev.
10/22/01
HGM300/RDM800
mini
manual.doc
13
CRITICAL
FAULTS
1)
NO
FLOW
ON
ZONE
ñ
Go
to
SYSTEM
SCREEN,
the
to
ZONES.
The
zone
screen
will
display
a
ì NO
FLOWî
message
in
each
individual
zone
affected.
Check
for
a
blockage
in
the
air
sample
line
or
at
the
line
end
filter.
Once
the
blockage
has
been
cleared,
the
HGM300
will
return
to
normal
operation
after
the
zone
has
been
sampled.
Note
-
This
can
take
some
several
minutes
since
it
is
dependent
upon
how
many
zones
there
are
and
their
lengths.
The
HGM300
will
clear
the
fault
the
next
time
it
polls
the
effected
zone
and
the
RDM800
will
return
to
normal
operation
the
next
time
that
it
polls
the
HGM300.
2)
NO
FLOW
ON
PURGE
ñ
Check
the
purge
line
for
a
blockage.
Verify
that
the
length
of
the
purge
line
and
exhaust
line
do
not
exceed
100
feet
in
length.
3)
NO
FLOW
DETECTED
ñ
Check
for
proper
pump
operation.
Check
the
water
trap
ñ
drain
if
necessary.
4)
CLIPPING
FAULT
ñ
The
detector
voltage
may
be
out
of
tolerance.
Check
the
DIAGNOSTIC
SCREEN
for
the
DET
voltage,
AVE
voltage
and
ZERO
voltage.
Call
the
factory
with
this
information
at
1-800-888-6400
Ext.
5182,
5169
or
5403
for
farther
instructions.
5)
REZERO
VOLT
TOL
ñ
The
detector
output
voltage
is
out
of
tolerance.
Check
the
DIAGNOSTIC
SCREEN
as
in
item
4
and
contact
the
factory
for
assistance.
6)
TRIGGER
FAULT
ñ
No
trigger
from
IR
source
pulser.
Contact
factory
with
all
information
from
the
DIAGNOSTIC
SCREEN
for
farther
instructions.
To
get
to
the
DIAGNOSTIC
SCREEN
ñ
From
the
SYSTEM
SCREEN
press
the
button
adjacent
to
the
HGM300
that
you
wish
to
view,
this
takes
you
to
the
HGM
SETUP
SCREEN,
from
there
press
the
button
adjacent
DIAG.
NON
CRITICAL
FAULTS
1)
BOX
TEMP
FAULT
ñ
Internal
ñ
Enclosure
temperature
is
outside
normal
range
(or
IR
sensor
has
failed).
Check
the
installation
to
verify
that
the
monitor
is
not
being
subjected
to
extreme
temperatures.
Verify
that
the
ventilation
holes
are
not
obstructed.
Check
the
DIAGNOSTIC
SCREEN
for
the
ZERO
temperature,
BNCH
temperature
and
BOX
temperature.
Call
the
factory
with
this
information
at
1-800-888-6400
Ext.
5182,
5169
or
5403
for
farther
instructions.
DIAGNOSTIC
SCREEN
FAULT
SCREEN
Archived
Document
