Technical manual
KANMED Operatherm OP3
Page
25
of
34
Action
:
Reset the alarm. The Control Unit needs to be
serviced by an authorised technician.
Action
:
Reset the alarm and restart the unit. If the alarm
re-occurs, the Control Unit should be analyzed and/or
replaced.
Earth current flow
is
detected in the ground
plane of the Heating
Pad.
This will occur if the
Heating Pad has been
severely mechanically
damaged or penetrated
by an sharp object.
Action
:
Reset the alarm. The Heating Pad and the
Control Unit needs to be serviced by an authorised
technician.
9 ANNUAL CHECK OF THE SYSTEM
Note: This procedure can be made with the Customer Software Version
Maintenance to be carried out by technical staff
•
Exchange the connector saver.
Annual check of the system
The system must be checked annually by a qualified technician. The following shall be tested:
•
Visual control of the Control Unit and Heating Pad as well as cables.
•
Complete electrical safety test (as per hospital regulation).
•
Check of the safety functions, as per the list below.
a) Check of system calibration
. Connect the optional calibration adapter to the Control Unit (to
the Pad connector). The system will automatically perform the calibration control by measuring the
reference resistance in the calibration adapter and display the result on the screen. Leave the
system running for about 5 minutes. If the Control Unit measure the correct resistance within
tolerance, the measured value turns green, if the measurement is outside of acceptable tolerance,
the value turns red.
b) Check of Mains Failure alarm
. Remove the power cord from the Control Unit during normal
operation. The alarm should trigger momentarily. Silence the alarm by pressing the on/off button
for about 2 seconds.
c) Check of Heating Pad safety circuit
. Expose the Heating Pad to an excessive thermal load,
by rolling the heating and inserting it in a bucket with room temperature water. Run the system at
39°C for approximately 10 minutes. (pls note that after 10 minutes the heating output per heating
element will drop to about 10 watt). Restart the system and let it run another 10 minutes. Repeat
this a third time and observe that the alarm triggers and Error code 60 is received. Total test time
about 25 minutes. To reset Error code 60 you have to disconnect the Heating Pad.
d) Check of over temperature alarm
. Run the system at 39°C. Warm any point of the Heating
Pad gently with a warm air blower (e.g. a hair dryer) and observe the individual temperature
readings on the Power and Energy display. When the element corresponding to the spot being
heated reaches 43°C the alarm should trigger and Error code 62 being received.
