3M QUESTempo II User Manual - Calibration
12 Calibration
QUESTempº II
At that time, the alarm will sound continuously and the unit will no longer read or store
data. If this occurs, turn the unit OFF and replace the battery before its next use.
Under normal use, the QUESTEMP
II will function for an addition 8 hours from the time
when the battery voltage first hits its "Lo" condition at 7.5-volts.
An on-board 3-volt lithium battery will retain the memory of the QUESTEMP
II even
when the 9-volt battery is removed. This will not, however, power the unit for operation.
Replace dead batteries with 9-volt ALKALINE, type NEDA 1604A or equivalent.
Audible Alarm
The speaker located in the ear assembly will sound under three conditions.
1.
When the 10-second-average temperature in the ear canal exceeds the set alarm
level, the speaker will give two pulses every second.
2.
When the 10-second-average temperature in the ear canal exceeds 0.5
C above
the set alarm level, the speaker will give four pulses every second.
3.
When the battery voltage falls below 7.2-volts, the speaker will sound continuously
warning that the unit has stopped reading temperature data and the battery should
be immediately replaced.
Calibration
The purpose of calibration is to compensate for the difference between an individual's
ear and body temperatures. [NOTE: When taking a temperature, the person should be
rested and should not have had anything to eat or drink in the past 15 minutes. The
probe should be kept under the tongue with the mouth closed.] Although typical oral to
ear temperature differentials can be found over a several degree range, each individual's
differential will remain stable provided that the ambient temperature does not change
drastically from the time of calibration.
At the time of calibration, an offset is added to the ear temperature to equate it to the oral
temperature. This offset will remain in effect until modified by the next calibration or until
the unit is reset. The time and amount of offset will be listed on the printout.