3M Bair Hugger 370 Manuel D'utilisation page 14

4. The control unit screen shows the actual calibrated thermistor readings for the skin and heater thermistors
respectively (see Figure 6-1).
5. Verify that the reference temperature for each calibrated thermistor matches the displayed value (see Table
6-1). If more than one reference temperature is required by your institution, verify using additional calibration
verification sticks.
Temperature
31°C
36°C
41°C
6. If the reference temperatures are outside of the acceptable limits, discontinue use of the temperature
monitoring system. Contact 3M technical support. If the reference temperatures are within acceptable limits,
continue with verification of monitor output if the control unit is connected to and used in conjunction with a
facility monitor.
Verification Procedure (Monitor Output)
For control units that are connected to and used in conjunction with a facility monitor.
1. Connect the power supply to the back of the control unit.
2. Connect the sensor cable to the front of the control unit.
3. Plug the monitor cable to the monitor port on the back of the control unit.
4. Connect the system calibration verification stick to the patient end of the sensor cable. Ensure the verification
stick is fully inserted into the sensor cable.
5. Wait for the control unit to calibrate and start emulating data. The internal relay will "click" and the display will
refresh when the emulation is active.
6. Set the multi-meter to the 2000 ohm range.
Note: Zero the multi-meter as necessary for all resistance measurements.
7. Hold the digital multi-meter leads to contacts one and two as shown in Table 6-2).
Figure 6-1: 36°C (96.8°F) Calibration Screens (Celsius and Fahrenheit)
Table 6-1: Display Output
Display Output
31.0 ± 0.1°C (87.8 ± 0.2°F)
36.0 ± 0.1°C (96.8 ± 0.2°F)
41.0 ± 0.1°C (105.8 ± 0.2°F)
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