Welch Allyn Medical Diagnostic Equipment Thermometer 690 Manual De Usuario

11. Lift the rubber flap on the Model 9600 Calibration Tester and insert the probe fully into the 

small hole on top of the tester.

12. Wait two (2) minutes for the probe temperature to fully stabilize.

13. The temperature should read between 105.7ºF/40.9ºC and 106.3ºF/41.3ºC.

This method is used to verify the calibration of the unit and probe at three set point 
temperatures 36.0ºC (96.8ºF), 38.5ºC (101.3ºF), 41.0ºC (105.8ºF). Use a verified 
thermometer from the Cal-Key Verification (3.5.1) and a functioning probe.

Caution: Store thermometers for testing in the same room as the 9600 Plus Calibration Tester 
for approximately 30 minutes prior to testing to allow for thermal accomodation.

1. Plug in the Model 9600 Plus Calibration Tester wall transformer to electrical power.

2. The 36.0ºC (96.8ºF) temperature setting is selected when the calibration tester is first 

powered on.

If the calibration tester is all ready powered on, change the temperature setting on the 
Model 9600 Plus Calibration Tester to 36.0ºC (96.8ºF) with the up/down arrow key 
(temperature will scroll through the 3 settings).
It is important to use the lower temperature setting first because the stabilization time from 
high temperature to low temperature takes about twenty (20) minutes. Stabilization time 
from a lower temperature to a higher temperature takes about six (6) minutes.

3. Wait for the displayed temperature to stop blinking. The actual temperature displayed 

blinks until the set temperature has stabilized.

4. Remove the probe from the thermometer well and clean it with either a 70% isoprophyl 

alcohol solution, a 10% chlorine bleach solution, or a non-staining disinfectant. Let the 
probe air dry for at least five minutes. Do not apply a probe cover. Place the thermometer 
in Monitor Mode. Refer to the thermometer’s Operator’s Manual.

5. Rotate the dust cover down so the Thermistor Device Port is open/available, leaving the 

Ear Device Port covered, and insert the probe fully into the small hole on top of the Model 
9600 Plus Calibration Tester.

6. Wait for approximately one minute or until temperature on the thermometer is stable for 

ten seconds. Compare the thermometer’s temperature reading to the 9600 Plus’ 
calibration set point temperature. If the temperatures are within + 0.1ºC (+ 0.2ºF), the 
thermometer is within calibration.

7. Remove the probe from the probe well and place back into the thermometer probe well.

8. Test all available thermometers for calibration verification at the current calibration set 

point temperature. Proceed to the next calibration set point temperature.

To scroll from one set point to the next, press and hold the temperature selection button 
until a beep is heard. The newly selected set point appears in the upper left corner of the 
LCD display. The device’s current temperature is displayed, will start to flash, and continue 
flashing until the cavity reaches the equilibrium at the new set point.

9. When done testing all thermometers at all temperature set points, close the dust cover on 

the Model 9600 Plus Calibration Tester.