laerdal LSU, Directions For Use Manual

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7.3 Evaluation of Device Test Results
After the test is completed, the Vacuum Indicator will automatically display the first result (blockage). To
display the other results press the TEST-Button once for each test. If you continue pressing the button after
the 4th test result has been displayed, the earlier results will be repeated (Test 1,2,3,4,1,etc.). To exit the
test program, set the Operating Knob to another position.
Test No.
The program
has tested for Battery
indicator
Test result indication Action if test failed
Test 1 Blockage in the
Suction System
(including
canister and
tubing) LED #1 lit up Test Passed <100 mmHg
FAIL
100 mmHg
PASS
Check possible blockages (e.g.
twisted tubing, blocked filter,
blocked filter in the liner) and
run the Device.Test again.
If the High Efiiciency Filtration
Kit is installed the pass limit is
150mmHg
Test 2 The vacuum
build-up
efficacy of the
Pump System
(How much
vacuum is built
up within 3
seconds) LED #2 lit up Test Passed >300 mmHg
PASS
300 mmHg
FAIL
Check Connectors, Tubes and
Canister Lid for leakage* or
damage.
Check exhaust outlet for
occlusion and run the Device
Test again
Test 3 The maximum
achievable
vacuum level
of the LSU
(reaches this
level within 10
seconds) LED #3 lit up Test Passed >500 mmHg
PASS
500 mmHg
FAIL
Check Connectors, Tubes and
Canister Lid for leakage* or
damage.
Check exhaust outlet for
occlusion and run the Device
Test again
Test 4 Air leakages
in the Pump
System
(including
canister and
tubing) LED #4 lit up Test Passed >450 mmHg
PASS
450 mmHg
FAIL
Check Connectors, Tubes and
Canister Lid for leakage* or
damage and run the Device
Test again
* If it is not obvious where the system is leaking; go step by step through the connections. Start by disconnecting
the Vacuum Tube at the Canister and run the Device Test (blocking the tube). Reconnect the tube and
disconnecting the patient tube, run device test (block the PATIENT inlet on the Canister). Continue with other
connections until the leakage is identified.
Note: If the LSU does not pass one or more of the steps in this test after suggested actions are taken, the
device might need to be returned for service (see the Troubleshooting guide).
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