Sentec LuMon, Service Manual, Page: 15 / 33

Maintenance/Safety and Functionality Tests
Service Manual for the LuMon™ System 15 of 33
•
Patient Leakage Current caused by an external voltage on the Patient Connection (Type BF). The
current must be below 5000
µ
A see IEC 60601-1 Figure 16.
•
Insulation Resistance Test: L, N of AC power inlet – housing (equipotentiality terminal). The resistance
must be more than 2 M
Ω
@500V DC.
•
Patient Insulation Resistance: Belt connector socket (insulation test cable) – housing (equipotentiality
terminal). The resistance must be more than 2 M
Ω
@500V DC .
Figure 3-3: Connections for safety test, protective earth resistance and leakage current
Figure 3-4: Connections for safety tests, insulation resistance
N
OTE
If the above described tests do not met the corresponding acceptance criteria, the LuMon™ Monitor needs to
be repaired. Refer to section 4.2.4 to further evaluate the problem.
Check the AC power cord for damages of the isolation. Check the belt connectors for damages.
The AC power cord must be tested when connected to the AC power outlet. Thereby the cable must be
swayed to detect potential cable breaks or loose contacts. The AC power cord must be tested together with the
Ground Integrity.
N
OTE
If the above specifications are not met, then the AC power cord needs to be replaced by a new AC power cord
from SenTec AG ( 8.1 ).
3.2.5 Touchscreen
Switch on the LuMon™ Monitor and wait until the default ScoutView is displayed.
1.
Press the button ‘system settings’ to enter ‘system settings’ area and press it again to return to ‘patient
& belt’ area.
2.
In ‘patient & belt’ area press ‘weight’ and select a different setting and press ‘OK’.
3.
Enter LuFuView, press ‘trend’ and move the ‘T1’ and ‘T2’ flags to different positions.
4.
Enter VentView ‘trend’ and check if ‘T1’ and ‘T2’ flags are as set in LuFuView.