Problem Solving Checklist - Spacelabs 90217 Service Manual

Ambulatory Blood Pressure Monitor 90217 Service Manual

Problem Solving Checklist

Use this table to diagnose a monitor problem:
Problem
Modem indicators are
incorrect.
Monitor display is incorrect.
Only the last digit to the right
changes when attempting to
communicate.
Monitor displays "LLL" and
alarm sounds.
Cuff is too tight.
Cuff is too loose when inflated.
Possible Cause
Modem switch settings are
incorrect.
No data was transferred.
Data being received fails the CRC
test and is declared corrupt.
Data is not retained.
Power is low or not there.
Can be one of the following: time-
out, no reading due to air leak in the
system, improper cuff size, or cuff
not properly attached to the monitor.
If using a modem, phone line is bad.
If using a modem, phone system is
incorrectly configured.
Main battery is low.
Cuff placed on the patient too
tightly.
The air pump stayed ON too long.
Cuff is placed on the patient too
loosely.
Air pump is not staying ON long
enough.
Solution
Check modem cable for tight
connection.
Check communications cable
for tight connections. If it is
loose and a bright external light
is present, the light may be
corrupting the data.
Replace backup battery.
Check the batteries for correct
polarity and a full charge. If
needed, replace or recharge
the batteries.
Isolate cause and correct.
Have phone company check
out line.
Verify modem configuration
with the phone company and
with Spacelabs Medical
Technical Support.
Turn OFF monitor immediately.
Replace batteries to continue
monitoring.
Reposition the cuff.
Return the unit to Spacelabs
Medical for service.
Reposition the cuff.
Return the unit to Spacelabs
Medical for service.
5-5