Welch Allyn Medical Diagnostic Equipment Thermometer 690 Manual De Usuario

Immediately following the LCD segment test, the software revision is displayed on the screen  
for 2 seconds. At the end of the self-test, the display goes blank and the unit is ready to 
operate.

The Low Power mode allows the thermometer to conserve power when it is not in use.

The unit will automatically enter the Low Power mode following one of these conditions:

1. After a final predicted temperature has been taken, the probe has not been returned to the 

well, and the displayed temperature has been on the screen for 30 seconds.

2. When the instrument is in Monitor mode and the probe tip is out of the patient temperature 

range (80 

F to 110 F) for a period greater than 5 minutes.

3. At the completion of the Recall mode time-out of 5 seconds.

4. Whenever the probe is returned to the well and the probe is plugged into the thermometer.

5. Whenever the probe is unplugged from the thermometer.

6. Whenever the unit is in the Biotech mode and there are no button presses for 5 minutes.

The unit will exit Low Power mode when any button on the instrument is pushed or the probe 
switch is activated. When the unit exits Low Power mode after the probe is removed from the 
well, all LCD segments are displayed for approximately 2 seconds.

Predict mode operation is the rapid mode of temperature taking. This is the default mode and 
is automatically selected when the probe is withdrawn from the probe well. This mode 
provides the clinical user with predictive temperature capability for obtaining oral, rectal, 
pediatric axillary (17 years and younger), and adult axillary (18 years and older) temperatures. 

If the mode is changed from Predict mode to Monitor mode during normal operation, it will 
change back to Predict mode when the probe is returned to the probe well.

1. Upon withdrawal of the probe from its storage well, every segment on the display is 

illuminated. The display will then show ORAL, ADULT AXILLARY, PED AXILLARY or 
RECTAL, depending on the probe and mode selected. It will also display 

C or F. In the 

upper left hand corner the ID will be displayed if one has been set (Model 692 only), and in 
the lower right hand corner the battery icon will be displayed.  At the same time that the 
mode is displayed, a short beep will sound.

2. To change between the Oral, Adult Axillary, and Pediatric Axillary modes, press and 

release the Mode button. Observe that the display changes between ORAL, ADULT 
AXILLARY, and PED AXILLARY when the Mode button is pressed and released.

3.  When the correct mode has been selected load a probe cover and take a temperature.

Note:  It is possible that the walking segments will start and stop several times before the 

probe is inserted into the temperature site.  This is acceptable and will not adversely 
affect the temperature taken.