Bard CritiCore 000002 User manual
Bardº
CritiCore”
Monitor
Service
Manual
Model
Number:
000002
Issued:
June
1,
1997
Pl
3336
[BANA
C.R.
Bard,
Inc.
Covington,
GA
30014
Copyright
Notice
to
Service
Personnel
РР
©
1997
C.
R.
Bard,
inc.
All
rights
reserved.
Printed
in
the
U.S.A.
Bard
and
CritiCore
are
registered
trademarks
of
C.R.
Bard,
Inc.
or
an
affiliate.
This
document
and
subject
matter
enclosed
herein
are
proprietary
information
to
which
C.R.
Bard,
Inc.
retains
the
exclusive
right
of
dissemination,
reproduction,
manufacture,
and
sale.
Any
party
accepting
this
document
agrees
it
shail
not
be
duplicated
in
whole
or
in
part,
nor
disclosed
to
others
without
written
consent
of
C.R.
Bard,
Inc.
U.S.
Patent
Nos.
4,448,207,
4,658,834.
Other
patents
applied
for.
This
manual
will
help
you
troubleshoot
and
service
the
Bard
CritiCore
Monitor.
Use
this
manual
in
conjunction
with
the
Bard
CritiCore
Monitor
Operators
Manual.
Be
sure
to
read
these
Manuais
and
become
familiar
with
their
contents
before
attempting
to
disassemble
or
repair
the
Bard
CritiCore
Monitor.
Please
consult
product
labels
and
inserts
for
any
indications,
contraindications,
hazards,
warnings,
cautions
and
directions
for
use.
The
Bard
CritiCore
Monitor
should
be
serviced
by
individuals
with
the
credentials
of
a
Certified
Biomedical
Equipment
Technician
(CBET)
or
equivalent
only.
Caution:
Federal
(USA)
law
restricts
this
device
to
sale
by
or
on
the
order
of
physician.
Caution:
-
The
Bard
CritiCore
Monitor
contains
static
sensitive
electronic
devices.
Do
not
attempt
to
disassemble
the
Monitor
without
the
proper
personal
and
work
station
grounding
apparatus.
Failure
to
properly
ground
both
your
body
and
your
work
station
could
result
in
damage
to
the
Bard
CritiCore
Monitor.
Tabie
of
Contents
NOS
NY
2
Product
Description
Communications
Module.
Functional
Checkout...
Troubleshooting
information „13
Mechanical
Testing
and
Repair
Procedures.........
mens
20
Bezel
Enclosure
.
…
20
Bezel
Top
Membrane
Switch..
Display
PCB
Temperature
Jack
Liquid
Crystal
Display
(LCD)
..
Front
Enclosure
Assembly
Attraction
Plates
and
Magnets
..
Rear
Enclosure
Battery
Assembly...
seen
Details
of
Electrical
Operation.
Fluid
Output
Electronics
Temperature
Measurement
Electronics
Microcontroller
Details
Display
Electronics
Keyboard
Electronics
..
Power
Management
sie
Electronic
Testing
and
Calibration
Procedures...
Power
Modules
Transducer
.
Phototransistor
..
Tilt
Sensor
Temperature
Electronics
....
Main
PCB.
CritiCore
Communications
Module
Main
PCB
Component
Map
......
Replacement
Parts
List.
Product
Specifications
..
Measurement
Ranges
and
Limits.
Instrument
Specifications
...
index
CritiCore
Monitor
Schematics.……....
"eos
73
Bard
CritiCore
Monitor
Service
Manual
Page
1
Introduction
Warranty
Repairs
This
manual
provides
the
technical
service
information
necessary
to
maintain
satisfactory
operation
of
the
Bard
CritiCore
Monitor.
It
is
intended
for
use
by
qualified
personnel
who
are
familiar
with
electro-mechanical
devices,
and
in
particular,
microprocessor-controlled
patient
monitors.
Use
this
manual
in
conjunction
with
the
Bard
CrítiCore
Monitor
Operator's
Manual.
The
contents
of
this
manual
are
summarized
below.
1.
Product
Description—Description
ot
Bard
CritiCore
Monitor
functions,
specifications,
and
product
information.
2.
Functional
Checkout—Use
this
test
procedure
to
verify
correct
*
operation
of
the
Monitor.
If
the
Monitor
fails
any
test
within
the
checkout,
the
CBET
will
be
referred
to
the
necessary
sections
of
this
manual
for
turther
testing.
After
repair
is
made
(by
either
Bard
or
the
CBET),
use
the
Functional
Checkout
procedure
to
verify
correct
operation
before
returning
the
Bard
CritiCore
Monitor
for
general
use.
3.
Troubleshooting
Information—For
monitors
with
an
obvious
or
predetermined
failure,
use
this
guide
to
identify
the
necessary
tests
to
isolate
the
problem.
4.
Mechanical
Testing
and
Repair
Procedures—Use
these
procedures
to
test,
disassemble
and
reassemble
the
Monitor.
After
repair
is
made
(by
either
Bard
or
the
CBET),
use
the
Functional
Checkout
procedure
to
verify
correct
operation
before
returning
the
Bard
CritiCore
Monitor
for
general
use,
5.
Electronic
Testing
and
Calibration
Procedures—Use
these
procedures
to
test
and
calibrate
the
electronics
of
the
Monitor.
After
repair
is
made,
use
the
Functional
Checkout
procedure
to
verify
correct
operation
before
returning
the
Bard
CritiCore
Monitor
for
general
use.
6.
Replacement
Parts
Kit
List—Listing
of
available
Bard
replacement
parts.
Note:
The
Bard
CritiCore
Monitor
contains
many
custom
mechanical
and
electronic
components.
To
ensure
safe
and
proper
operation
of
the
Monitor,
use
only
Bard
replacement
parts
as
specified
in
the
replacement
parts
kit
list.
7.
Product
Specifications—Measurement
ranges
and
limits
along
with
instrument
specifications.
8.
Schematics—Schematic
diagrams
for
the
CritiCore
Monitor.
Includes
control
block
diagrams
and
timing
charts.
・
Bard
provides
a
90-day
limited
warranty
on
each
Bard
CritiCore
Monitor.
All
repairs
on
products
under
warranty
must
be
performed
at
a
Bard
designated
repair
facility.
If
there
is
any
evidence
of
unauthorized
service
the
customer
may
forfeit
any
warranty
provisions
and
may
be
billed
for
the
repairs
required
to
return
the
Monitor
to
its
original
condition.
To
obtain
technical
support,
product
information,
and
for
placing
orders
contact
Bard
Customer
Service
at
1-800-526-4455.
Bard
CritiCore
Monitor
Service
Manual
Page
2
Non-Warranty
Repairs
Contacting
Bard
Monitors
no
longer
under
warranty
may
be
repaired
within
the
following
constraints:
1.
Only
components
included
in
the
replacement
parts
list
are
used
to
make
the
repair.
2.
No
component
has
been
removed
from
the
Monitor
unless
that
component
is
specified
in
the
replacement
paris
list.
3.
Each
repaired
Bard
CritiCore
Monitor
passes
the
Functional
Checkout
(see
page
7)
before
it
is
returned
for
general
use.
Call
Bard
Customer
Service
Department
(1-800-526-4455)
to
order
components
necessary
to
complete
a
repair.
For
orders
and
technical
support,
contact
Bard
Customer
Service
at
1-800-526-4455
between
8:30AM
and
4:30PM
eastern
time,
Monday
through
Friday.
When
calling
for
technical
support,
please
be
prepared
to
supply
the
following
information:
*
Your
Name
*
Hospital
Name
«+
Address
*
Telephone
Number
+
Unit
Model
Number
*
Unit
serial
number
*
Description
of
the
reported
problem
+
Was
ihe
Monitor
used
on
a
patient
when
the
problem
occurred?
‚
Paiient
status
and
type
of
intervention
required
(if
applicable).
If
you
are
advised
to
return
the
Monitor
to
a
Bard-designated
repair
facility,
a
Return
Authorization
Label
or
detailed
mailing
instructions,
with
the
name
and
address
of
the
repair
facility,
will
be
supplied
to
you
by
your
Bard
Customer
Service
Representative.
To
return
the
Bard
CritiCore
Monitor
for
service:
1.
Remove
and
dispose
of
6
D-cell
batteries.
2.
Package
the
Monitor
with
adequate
protection.
if
available,
use
the
original
materials
in
which
the
Monitor
was
shipped.
8.
Include
a
brief
description
of
the
problem
as
well
as
the
name
and
phone
number
of
the
person
to
be
contacted
for
additional
information.
Note:
Apply
a
label
with
the
return
authorization
number
to
the
shipping
carton.
3.
Ship
the
Monitor
Transportation
Prepaid
to
the
location
specified
by
your
Bard
Customer
Service
Representative.
4.
If
requested,
Bard
will
evaluate
the
Monitor
and provide
an
estimate
before
any
repairs
are
made.
’
Bard
CritiCore
Monitor
Service
Manual
Page
3
Figure
1
Product
Description
Fluid
Ouput
Temperature
Measurement
The
Bard
CritiCore
System
consists
of
a
fluid
output
and
core
temperature
monitor,
a
disposable
collection
system,
and
disposable
temperature
probes
(temperature-sensing
Foley
catheters).
Note:
Consult
the
Operators
Manual
for
details
on
all
Bard
CritiCore
Monitor
functions.
-
The
Bard
CritiCore
Monitor
electronically
measures
fluid
output
volume
utilizing
ultrasound
technology.
During
operation,
the
disposable
container
rests
within
the
Monitor and
sits
on
top
of
a
silicone
rubber
transducer
cap.
Underneath
the
silicone
rubber
cap
is
the
transducer
element,
which
will
periodically
transmit
a
controlled
burst
of
ultrasonic
energy
up
through
the
container.
Ultrasonic
energy
will
travel
through
the
fluid
and
reflect
back
towards
the
transducer
at
the
fluid/air
interface.
The
transducer
also
functions
as
receiver,
detecting
the
return
of
the
transmitted
burst.
The
microcontroller
within
the
CritiCore
Monitor
will
measure
the
time
the
energy
burst
took
to
make
the
round-trip.
This
information
is
then
converted
into
container
volume.
Bladder
Temperature
is
measured
by
a
temperature-sensing
Foley
catheter.
The
temperature
sensor
integral
to
the
disposable
catheter
is
a
“400-Series”
thermistor.
As
the
Bladder
Temperature
changes,
so
does
the
resistance
of
the
thermistor.
Sensitive
electronics
in
the
Bard
CritiCore
Monitor
will
detect
any
change
in
the
resistance
of
the
thermistor.
The
resistive
vaiue
of
the
400-Series
thermistor
is
converted
into
a
corresponding
relative
temperature
reading.
The
CritiCore
Monitor
incorporates
the
following
features:
+
|
Present
Interval
Output
Calculation
+
©
Prior
Interval
Output
Calculation
+
Cumulative
Output
Calculation
»
Container
Volume
Measurement
*
Flow
Rate
Calculation
Bard
CritiCore
Monitor
Service
Manual
Page
4
i
i
i
/
fee
ο
i
Communications
Module
The
Bard
CritiCore
Monitor
was
designed
to
accommodate
the
Bard
CritiCore
Communications
Module
(highlighted
area
in
Figure
2).
The
function
of
the
CritiCore
Communications
Module
(CCM)
is
to
permit
communications
between
a
computer
or
patient
data
management
system
and
the
CritiCore
Monitor.
Note:
Consult
the
CCM
Operator's
Manual
for
details
on
all
CCM
functions.
With
the
CCM,
the
user
may
configure
the
CritiCore
Monitor
to
transmit
data
in
one
of
four
modes
(see
Figure
3):
*
210
Emulation
mode—Emulates
the
manner
in
which
the
Bard
Urotrack®
Model
210
Monitor
communicates
its
data.
Flow
rate
and
container
volume
are
transmitted
in
this
mode.
+
220
Emulation
mode—Emulates
the
manner
in
which
the
Bard
Urotrack
Model
220
and
Urotrack
Model
224
Monitors
communicate
their
data.
Bladder
temperature
and container
volume
data
are
transmitted
in
this
mode.
*
Standard
mode—This
mode
is
designed
to
access
all
of
the
information
-available
from
the
Bard
CritiCore
Monitor.
Flow
rate,
bladder
temperature
and
container
volume
data
are
transmitted
in
this
mode.
Figure
2
+
FlexPort”
mode—Allows
the
user
to
set
up
communication
between
the
Bard
CritiCore
Monitor
and
a
SpaceLabs
Medical
Patient
Care
Management
System
(PCMS°)
Monitor.
у
Page
5
Bard
CritiCore
Monitor
Service
Manual
Figure
3—CritiCore
Monitor
with
CCM
Installed
Bard
CritiCore
Monitor
Service
Manual
Page
6
Functional
Chec
t
Product
Identification
Self
Test
The
Functional
Checkout
procedure
is
designed
to
verify
that
the
CritiCore
Monitor
is
functioning
properly
before
it
is
placed
into
service.
This
procedure
is
available
in
the
Operator's
Manual,
which
is
supplied
with
every
Monitor
purchased.
The
Operator's
Manual
can
also
be
purchased
separately
(see
the
Replacement
Parts
List
on
page
68).
The
Functional
Checkout
procedure
is
repeated
here
for
reference.
In
addition
to
the
Functional
Checkout
procedure
are the
use
of
the
T,
-
T,
Monitor
test
modes.
The
use
of
these
test
modes
will
be
discussed
in
the
Additional
Testing
Modes
section
on
page
12.
1.
the
Bard
CritiCore
Monitor
has
been
turned
on
recently,
be
sure
it
has
been
turned
off
for
at
least
10
minutes
before
initiating
the
self
test.
2.
Hang
the
Monitor
from
a
stable
levet
bracket
or
set
it
on
a
stable
level
surface.
3.
Clean
both
the
cavity
that
holds
the
collection
container
and
the
silicone
rubber
transducer
cap
located
at
the
bottom
of
the
cavity.
Note:
Use
a
soft
non-abrasive
cloth
dampened
with
warm
water
and
mild
detergent,
alcohol
or
a
non-staining
disinfectant.
4.
Open
the
rear
control
panel
door
to
reveal
the
rear
panel
switches
5.
Setthe
toggle
and
rotary
switches
as
follows:
Set
Format
Set
Value
Test
Switch
CLOCK
42
Hr.
Normal
Operation
Normal
Operation
TEMPERATURE
°F
BACKLIGHT
Of
FLOW
RATE
DISPLAY
Off
FLOW
RATE
ALARM
Disabled
TEMP.
ALARM
Disabled
BEEPER
Audible
6.
Press
the
ON/OFF
switch
on
the
membrane
switch
to
turn
the
Monitor
ON.
The
Monitor
will
emit
a
short
“beep”
and
perform
a
self
test.
This
self
test
should
take
about
4
seconds.
After
the
self
test
the
Monitor
will
automatically
enter
the
normal
operation
mode.
Note:
If
the
Monitor
fails
the
self
test,
an error
code
“PPPP”
will
appear
in
the top
display.
Once
the
self
test
is
completed
and successful,
the
display
should
resemble
Figure
4
with
the
exception
of
Not
Level
Indicator.
Note:
The
current
time
of
day,
time
of
the
previously
selected
interval
and
interval
length
may
differ
from
Figure
4.
Bard
CritiCore
Monitor
Service
Manual
”
Раде?
Check
Container
Status
1.
Lift
the
display
assembly
and
install
an
empty
disposable
container
into
the
Monitors
front
cavity.
`
2.
Lower
the
iid
ensuring
that
it
completely
closes
and
traps
the
container
within
the
Monitor.
3.
Verify
that
the
Check
Container
status
indicator
on
the
display
is
not
lit,
and
“O
ML"
appears
in
the
Present
Interval
Output
display.
Temperature
1.
Install
a
temperature-sensing
Foley
catheter
or
a
temperature
calibration
plug
into
the
temperature
jack
on
the
left
side
of
the
display
assembly.
Note:
A
precision
(0.1%
or
better)
decade
box
set
to
1954.70
and
connected
to
a
3.6mm
mono
mini-phone
plug
may
be
used
instead
of
a
calibration
plug.
See
page
59
for
table
of
calibration
plug
resistances.
2.
Verify
that
the
Check
Probe
status
indicator
disappears
and
that
a
temperature
reading
appears
in
the
Bladder
Temperature
display.
If
employing
a
temperature
calibration
plug
the
value
should
be
98.6°F
+
02Ε.
3.
Remove
the
temperature
calibration
plug
or
temperature-sensing
Foley
catheter
and
verify
that
the
Bladder
Temperature
window
displays
“--.-”
and
that
the
Check
Probe
status
indicator
is
lit.
System
Clock
1.
Tur
the
SET
VALUE
rotary
switch
on
the
rear
control
panel
to
the
HOUR
position.
Verify
that
the
hour
segment,
PM/AM
and
Set
Value
status
indicators
are
flashing.
2.
Use
the
Tl
switches
on
the
membrane
switch
to
set
the
system
clock
to
the
correct
hour..
3.
Turn
the
SET
VALUE
rotary
switch
on
the
rear
control
panel
to
the
MINUTE
position.
Verify
that
the
minute
segment
and
Set
Value
status
indicator
are
flashing.
4.
Use
the
T
switches
on
the
membrane
switch
to
set
the
minutes
of
the
clock
to
the
correct
time
of
day.
5.
Return
the
SET
VALUE
rotary
switch
to
the
NORMAL
OPERATION
position
and
verify
that
the
correct
time
appears
on
the
display.
Verify
that
the
Set
Value
status
indicator
is
not
lit.
Intervals
1.
Turn
the
SET
VALUE
rotary
switch
to
the
INTERVAL
position.
Verify
that
the
interval
segment,
HA/MIN
and
Set
Value
status
indicators
are
flashing.
2.
Use
the
Tl
switches
onthe
membrane
switch
to
display
the
following
intervals:
5
MIN;
10
MIN,
15
MIN,
20
MIN;
30
MIN;
1HR;
2HR.
3.
Set
the
interval
length
to
the
preferred
interval
and
return
the
SET
VALUE
rotary
switch
to
the
NORMAL
OPERATION
position.
Page
8
Bard
CritiCore
Monitor
Service
Manual
Patient
Data
Heset/Present
Interval
Output/Container
Volume
Figure
5
Flow
Rate
1.
Filla
disposable
container
with
water
(approximately
2100mi)
and
hang
it
so
that
it
is
higher
than
the
Monitor.
Note:
A
60cc
irrigation
syringe
can
be
used
to
fill
the
collection
container
or
two CritiCore
disposable
containers
can
be
used
for
this
procedure.
These
containers
should
be
dedicated
for
test
use
only.
tf
an
irrigation
syringe
is
used,
proceed
to
step
5,
otherwise
continue
with
step
2.
2.
Cut
the
inlet
tubing
of
a
second
disposable
container
one
inch
below
the
urine
sample
port
connector.
」
jnstall
ihe
modified
second
empty
container
into
the
Monitor.
tnser
the plastic
molded
Control
Fit
connector
at
the
end
of
the
drain
tube
on
the
filled
container
into
the
soft
plastic
tubing
on
the
second
container
extending
from
the
Monitor
(see
Figure
5).
5.
Press
the
ON/OFF
switch
to
tum
the
Monitor
ON.
6.
Using
either
the
irrigation
syringe
or
a
second
disposable
container,
allow
approximately
100ML
of
water
to
drain
into
the
container
in
the
Monitor.
7.
Wait
approximately
10
seconds
after
the
water
has
drained
into
the
Monitor
and
the
surface
of
the
water
is
steady.
The
Monitor
should
read
approximately
“100
ML"
in
the
Present
Interval
Output
display.
8.
Press
the
Container
Volume
switch.
The
display
should
read
approximately
“100
ml"
Verify
that
the
container
volume
disappears
30
seconds
after
the
container
volume
switch
is
pressed.
9.
Press
and
hold
the
Patient
Data
Reset
switch
until
a
short
“beep”
is
heard.
10.
Press
the
Container
Volume
switch
a
second
time.
The
Container
Volume
display
should
read
within
3mi
of
the
value
noted
in
Step
8
and
the
Present
Interval
Output
display
should
read
between
“0”
and
“3
ML”.
1.
Set
the
FLOW
RATE
toggle
switch
to
the
ON
position.
2.
Set
the
Interval
length
to “1
HR.”
Note:
If
at
least
15
minutes
remain
in
the
current
hour,
proceed
with
step
3.
If
less
than
15
minutes
remain
in
the
current
hour,
wait
until
the
beginning
of
the
hour
before
proceeding
with
step
3.
3.
Press
and
hold
the
Patient
Data
Reset
switch
until
a
short
“beep”
is
heard.
Verify
that
“0
ML”
appears
in
the
Present
Interval
Output
display
and
that
dashes
“----”
appear
in
the
Flow
Rate
display.
4.
Allow
a
small
amount
of
water
to
drain
into
the
container
in
the
Monitor.
The
Present
Interval
Output
should
display
a
new
reading
within
15
seconds
after
the
water
flow
has
stopped
and
the
water
surface
is
steady.
Bard
CritiCore
Monitor
Service
Manual
Page
9
5.
Repeat
step
4
after
each
minute
increment
for
10
consecutive
minutes,
adding
only
a
small
amount
of
water
each
time.
After
exactly
10
minutes
the
current
Flow
Rate
display
should
change
from
dashes
*---”
to
a
value
that
is
6
times
the
value
in
the
Present
Interval
Output
display.
Not
Level
Indicator
~
With
the
Monitor
ON,
tilt
the
Monitor.
Verify
that
the
Not
Level
status
indicator
becomes
lit.
3.
Return
the
Monitor
to
a
level
position
and
verify
that
the
Not
Level
indicator
disappears.
Full
Container
Alarm
1.
Open
the
drain
clamp
on
the
upper
container
or
use
an
irrigation
syringe
to
fill
the
container
in
the
Monitor
to
2050
mi
of
water.
2.
Verify
that
the
Full
Container
status
indicator
flashes
and
an
audible
alarm
is
heard.
Note
that
the
BEEPER
toggle switch
should
be
in
the
AUDIBLE
position.
3.
Press
the
Container
Volume
switch
and
verify
that
the
Container
Volume
displayed
is
greater
than
2000mi
and
is
flashing.
4.
Drain
about
200ml
from
the
Monitor
container
and
verify
that
the
Full
Container
status
indicator
is
not
lit
and
the
audible
alarm
stops
beeping.
5.
Press
the.
Container
Volume
switch
and
verify
that
the
Container
Volume
displayed
is
less
than
2000ml
and
is
not
flashing.
High
Temperature
Alarm
Before
performing
this
procedure,
remove
any
temperature
probes
or
calibration
plugs
and
reset
the
Monitor.
'
1.
Set
the
TEMP
ALARM
toggle switch
to
the
ENABLED
position
and
the
BEEPER
toggle
switch
to
the
AUDIBLE
position.
Verify
that
the
bell
icon
appears
in
the
upper
right
corer
of
the
Bladder
Temperature
display.
2.
Turn
the
SET
VALUE
rotary
switch
to
the
HIGH
TEMP.
ALARM
position.
3.
Verify
that
the
Set
Value
status
indicator
and
101.0°F
flashes
on
the
display.
The
High
Alarm
and
Check
Probe
status
indicators
should
also
be
lit.
Note:
The 101.0°F
will
appear
only
if
the
temperature
alarm
default
limit
has
not
been
reset
or
if
both
battery
packs
have
been
removed
for
an
extended
period
of
time.
4.
Use
the
Tl
switches
on
the
membrane
switch
to
set
the
alarm
limit
to
98.4°F.
5.
Turn
the
SET
VALUE
rotary
switch
to
the
NORMAL
OPERATION
position.
Insert
a
98.6°F
calibration
plug.
Verify
that
the
High
Alarm
status
indicator
is
lit,
the
value
in
the
Bladder
Temperature
display
is
98.6+
0.2
°F,:and
is
flashing
and
the
audible
alarm
is
beeping.
Page
10
Bard
CritiCore
Monitor
Service
Manual
Low
Temperature
Alarm
Backlighting
Completion
6.
Press
the
Alarm
silence
switch
to
verify
that
the
audible
alarm
stops,
the
value
in
the
Bladder
Temperature
display
continues
to
flash
and
the
Alarm
Silenced
status
indicator
is
lit.
7.
Reset
the
High
Temperature
Alarm
limit
to
the
preferred
high
temperature
alarm
value.
~
Remove
the
calibration
plug
and
reset
the
Monitor.
2.
Turn
the
SET
VALUE
rotary
switch
to
the
LOW
TEMP.
ALARM
position
and
verify
that
the
Set
Value
status
indicator
and
50.0°F
(10.0°C)
flashes
on
the
display.
The
Low
Alarm
and
Check
Probe
status
indicators
should
also
be
lit.
Note:
The
50°F
will
appear
only
if
the
temperature
alarm
default
limit
has
not
been
reset
or
if
both
battery
packs
have
been
removed
for
an
extended
period
of
time.
3.
Use
the
TL
switches
on
ihe
membrane
switch
to
set
the
alarm
limit
to
99.0°F.
4.
Tum
the
SET
VALUE
rotary
switch
to
the
NORMAL
OPERATION
position.
-
5.
insert
a
98.6°F
calibration
plug.
Verify
that
the
Low
Alarm
status
indicator
is
lit
and
the
audible
alarm
is
beeping.
6.
Reset
the
Low
Temperature
Alarm
limit
to
the
preferred
low
temperature
alarm
value.
Place
the
BACKLIGHT
toggle
switch
in
the
ON
position.
Press
any
switch
on
the
membrane
switch.
3.
Do
not
touch
any
other
key.
Verify
that
the
display
backlight
is
on
and
that
it
will
automatically
shut
off
after
30
seconds.
Note:
It
may
be
necessary
to
dim
the
room
lighting
before
the
Monitor
backlight
is
visible.
4.
If
the
Monitor
will
be
used
in
well-lit
conditions
retum
the
BACKLIGHT
toggle
switch
to
the
OFF
position
to
maximize
battery
life.
At
this
point
the
Functional
Checkout
Procedure
is
complete.
Store
the
two
containers
used
to
hold
fluid
so
they
can
be
used
to
check
the
Monitor
as
required.
Bard
CritiCore
Monitor
Service
Manual
Page
11
Additional
Testing
Modes
There
are
two
manufacturing
test
modes
available
for
further
checkout
of
the
CritiCore
Monitor.
Located
on
the
rear
control
panel,
T,
and
T,
can
provide
.
additional
information
on
the
status
of
certain
functions.
Please
note
that
te.
mode
T,
is
used
only
for
calibration
of
the
temperature
circuitry.
Calibration
is
discussed
in
the
Installing
and
Calibrating
the
Main
PCB
procedure
(on
page
60)
and
should
only
be
performed
by
qualified
personnel.
When
the
rotary
TEST
SWITCH
is
rotated
to
the
T,
position,
the
Monitor
will
enter
into
a
display
testing
mode.
This
mode
will
cause
the
display
to
begin
cycling
through
a
sequence
of
decimal
and
hexadecimal
numbers/letters.
Once
in
T,
mode,
the
cycle
will
continue
regardless
of
any
toggle
or
rotary
switch
settings.
This
allows
the
technician
to
verify
that
all
segments
of
the
Liquid
Crystal
Display
(LCD)
are
functioning
properly.
See
the
Testing
the
LCD
Display
procedure
(on
page
30)
for
details
on
this
test
mode.
When
the
rotary
TEST
SWITCH
is
rotated
to
the
T,
position,
the
Monitor
will
enter
into
a
software
checksum
and
revision
display
mode.
In
the
Present
Interval
Output
window,
the
software
checksum
will
be
displayed.
In
the
Bladder
Temperature
window,
the
software
revision
number
is
displayed.
If
necessary,
have
the
Monitors
serial
number
available
and
contact
your
Bard
Customer
Service
Representative
for
the
correct
values.
Page
12
Bard
CritiCore
Monitor
Service
Manual
Troubleshooting
Information
The
following
troubleshooting
flowcharts
are
provided
to
help
diagnose
problems
with
your
Bard
CritiCore
Monitor.
Short
Battery
Life
Troubleshooting
Flow
Chart
Monitor
is
draining
the
batteries
prematurely
Y
Test
current
consumption
(page
47)
Current
consumption
OK?
No
Replace
Main
Circuit
Board
Yes
+
Does
problem
persist?
No
Problem
Solved
Yes
Send
unit
to
Bard
for
Service
Bard
CritiCore
Monitor
Service
Manual
Page
13
"Not
Level"
indicator
is
lit
when
monitor
is
level.
"Not
Level"
indicator
is
not
lit
when
monitor
is
not
level.
Verify
that
the
monitor
is
within
6°
of
level.
Test
the
Display
LCD
(page
29)
Does
LCD
check
out
OK?
No
Replace
LCD.
„|
Test
the
SENSPWR
signal
Tilt
Sensor
Troubleshooting
Flow
Chart
(page
47).
Does
SENSPWR
signal
check
out
OK?
No:
Replace
Main
Circuit
Board.
Yes
у
Test
the
Tilt
Sensor
(page
55).
Does
Tilt
Sensor
Lightly
tap
on
Tilt
Sensor
№-—+
housing
to
loosen
check
out
OK?
sensor
ball.
Yes
3
Re-test
the
Tilt
Sensor
5).
ㆍ
Problem
solved.
(page
55)
Does
Tilt
Sensor
check
out
OK?
Replace
Main
Circuit
Board.
No
Yes
Problem
solved.
Page
14
Bard
CritiCore
Monitor
Service
Manual
Container
Sensor
Troubleshooting
Flow
Chart
"Check
Container"
indicator
is
not
lit
when
container
is
not
present.
"Check
Container"
indicator
is
lit
when
container
is
present.
Test
the
SENSPWR
signal
y
Verify
the
following:
The
surface
of
fluid
in
the
container
is
not
vibrating.
Transducer
cap
is
clean.
Phototransistor
is
clean.
Test
the
Display
LCD
(page
29).
Does
LCD
check
out
OK?
No
Replace
LCD.
(page
47).
Does
SENSPWR
signal
check
out
OK?
No-
Yes
Test
the
Phototransistor
(page
53).
Does
Phototransistor
check
out
OK?
No
Yes
Does
problem
persist?
Yes
Send
unit
to
Bard
for
service.
Replace
Main
Circuit
Board.
No
Problem
solved.
Replace
Display
assembly.
Bard
CritiCore
Monitor
Service
Manual
Page
15
Monitor
is
not
measuring
temperature
consistently
or
correctly.
or
Temperature
Measurement
Troubleshooting
Flow
Chart
Test
Temperature
Jack
"Check
Probe"
indicator
|*
4
is
lit
when
probe
is
inserted.
or
"Check
Probe"
indicator
is
not
lit
when
probe
is
not
inserted.
개
Test
the
Display
LCD
(page
29).
Does
LCD
check
out
OK?
No
|
Replace
LCD.
Problem
solved.
Yes
connector
(page
27).
Does
Temperature
Jack
connector
check
out
OK?
No
Repiace
Jack
connector.
Yes
Test
temperature
accuracy
(page
8).
Re-calibrate
temperature
on
main
circuit
board (page
58).
Does
temperature
accuracy
check
out
OK?
№—
Yes
+
Test
+AD
power
supply
Re-test
temperature
accuracy
(page
47).
(page
8).
Does
temperature
accuracy
check
out
OK?
Does
+AD
power
supply
check
out
OK?
Yes
Problem
solved.
Replace
Main
Circuit
Board.
Page
16
Bard
CritiCore
Monitor
Service
Manual
