Functionally testing the Braun ThermoScan PRO 4000 thermometer
This explains how to perform a functional verification on the Braun ThermoScan PRO 4000
thermometer using the 9600 Plus Calibration Tester.
Note Use this procedure in place of the verification and calibration test for the Braun
PRO 4000 dock in the Welch Allyn Service Tool version 1.0.2.0.
Caution Before the test, place thermometers and tester in the same room for
approximately 30 minutes so that they adjust to the ambient temperature.
For more information, see the Welch Allyn 9600 Plus Calibration Tester Directions for use.
Set up the 9600 Plus Calibration Tester
Place the tester on a level surface away from sunlight, drafts, and other sources of heat or cold.
The tester takes approximately 20 minutes to heat to the lowest set point.
To expedite testing, Welch Allyn recommends the following practices:
• To eliminate waiting for the tester to heat to the next set point, use three testers, each set to
one of three different set points.
• When using only one tester to test several thermometers at all three temperatures, test all
thermometers at one set point before proceeding to the next set point.
• To eliminate waiting for the tester to cool down, start at the lowest set point. Because the
tester does not have an internal fan, it requires more time to cool down than to heat up.
Perform the functional verification test
Test each thermometer at the low, medium, and high set points on the tester. After placing the
thermometer in calibration mode, repeat the procedure from step 4 for each thermometer and
temperature to be tested.
1. Clean the probe window with a cotton swab slightly moistened with isopropyl alcohol, remove
excess alcohol with a clean cotton swab, and let air dry for 5 minutes. Do not use any
chemical other than alcohol to clean the probe window.
2. Place the thermometer in calibration mode:
a. Make sure that the thermometer displays the OFF symbol.
b. Turn on the thermometer by pushing and releasing the I/O mem button.
Symbols and functions appear as the thermometer performs an automatic self check.
c. Wait for two dashes and ° C or ° F to appear on the display.
d. Push and hold the I/O mem button.
After approximately 3 seconds, a short beep sounds, and the OFF symbol flashes on the
display. Then a long beep sounds.
e. Release the button immediately.
The display flashes and shows the CAL symbol.
The thermometer is now in calibration check mode.
3. Apply a new probe cover. Place the probe firmly into the Ear Device Port.
4. Wait approximately 3 seconds, and then press the thermometer Start button.
The ExacTemp light flashes.
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Functional verification tests Welch Allyn Vital Signs Monitor 6000 Series™
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