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English 202036A
Check the 3M
TM
Bair Paws
TM
system website to ensure you have the most recent version of this document.
www.bairpaws.com reorder #202036A
Method
Note: The OT threshold temperature cannot be adjusted� If problems occur, contact 3M
Patient Warming customer service�
1� If continuing from Calibrating the Operating Temperatures, skip to step 6; otherwise,
proceed to the next step�
2� Turn the warming unit on and select the maximum airflow and temperature setting by
turning the controller knob completely clockwise (refer to position C in Figure 6)�
3� Press the clip buttons on the hose end and insert the hose end into the temperature test
kit�
4� Allow the system to warm 10 minutes before starting the test�
5� Extend the hose straight to its full length� If not already done, remove the two screws
that attach the case bottom (dark purple) to the warming unit and slide it down the
hose�
6� With a small screwdriver continuously press the OT
test button (see Figure 11) for the duration of the over-
temperature test�* When functioning properly, the
“Over-Temp” indicator will illuminate and an audible
alarm will sound� The peak test kit temperature will be
below 56°C, and the heater will switch off within two
minutes� If this does not occur, return the unit to 3M
Patient Warming for service�
*Pressing the OT test button places the heater in a full-on, unregulated condition;
therefore, the unit may become slightly warm to the touch�
7� Turn the temperature controller to the off position to
reset the alarm (position A, Figure 7)� Wait ten seconds�
8� Turn the temperature controller to position B (Figure 7)� After waiting several minutes,
the thermocouple temperature should approach the ambient temperature�
9� Reposition the case bottom with the filter and attach to the warming unit with two
screws�
Figure 11�
OT test button hole
