
SureTemp
®
Model 678/SureTemp
®
Model 679 1-1
1. OPERATIONAL CHARACTERISTICS
Note:
This manual describes both the Model 678 and the Model 679 thermometers.
The bulk of the discussion is equally applicable to both products. Where there
are differences, it will be noted as to which instrument the discussion applies.
The Welch Allyn Model 678 and 679 Thermometers are the next generation of
thermistor based medical grade thermometers providing the accuracy and ease of use
of thermistor technology as in the well known Model 675. The Model 678 and Model
679 provide a Normal mode oral temperature in about 4 seconds, significantly faster
than the typical 30-40 second average time to temperature in earlier products.
Basic end user operation of the Model 678 and Model 679 is covered in the
User’s
Manual
and this manual assumes an understanding of these operations. This chapter
will help you determine if the Model 678/679 is functioning properly and, if it is not,
refer you to the proper section to isolate the problem.
Note:
There are many things that can be done to check operation before the unit is
disassembled. This section will cover these normal operating actions.
Basic System Description
The thermometer system consists of five main components: The batteries, the
thermometer instrument, the wall mount, the probe and the probe cover.
1. Probe cover box 6. Probe Handle
2. Display 7. Probe storage well
3. Timer button (678 only) 8. Probe connector receptacle
4. Mode button 9. Probe cover storage well/ Battery cover
5. Probe cover ejection button
Figure 1 - Thermometer Diagram
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