5. Leave the thermometer in the tester until a beep sounds.
6. Remove the thermometer from the tester and read the temperature in the thermometer’s
display. If the temperatures are within ±0.2° C (±0.4° F) of the tester’s set point, the
thermometer is within calibration.
7. Record the results in the service record, as shown in “Service record example.”
8. Press the start button once to clear the previous reading.
9. Wait 1 minute, and then take another reading with the same thermometer. Repeated
measurements in short sequence might cause higher readings.
Note If using only one tester, test all available thermometers for
calibration verification at the current set point, before raising the
set point.
10. Repeat the procedure from step 4 as necessary until all thermometers are tested at each
temperature.
11. Exit CAL mode using one of the following methods:
• Press and hold the I/O mem button until the OFF symbol flashes.
• Wait for 4 minutes. The thermometer automatically exits CAL mode.
Change the tester’s set point
To scroll from one set point to the next, press and hold the Temperature Selection button until
a beep sounds.
The newly selected set point appears in the upper left corner of the LCD display. The device’s
current temperature appears, flashes, and continues flashing until the cavity reaches
equilibrium at the new set point.
Service record example
Date: Time:
Device name:
Braun Pro 4000
Serial number:
Temperature tested Specification ±0.2° C (±0.4° F) Actual reading Pass/fail
96.8° F /36.0° C 96.4° F....97.2° F 35.8° C …36.2° C
101.3° F /38.5° C 100.9° F....101.7° F 38.3° C …38.7° C
105.8° F /41.0° C 105.4° F....106.2° F 40.8° C …41.2° C
Service manual Functional verification tests 85
To Next Page
Loading...
