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*Automatically applied when temperature is within
normal body temperature range, otherwise
reads surface temperature.
Calibration Verification Procedure
All Exergen infrared thermometers are designed to permanently maintain their accuracy and normally recali-
bration is not required unless the thermometer has been physically damaged or experiences component fail-
ure. In the unlikely event recalibration might be required, the thermometer must be returned to Exergen for
the procedure.
However, calibration can be verified in the lab or clinical units quite easily using a device known as a portable
blackbody. A portable blackbody is a reference heat generator (Figure 1), which is a self-contained device
providing a stable reference target temperature in the clinical temperature range.
The device is then used to verify the calibration of any Exergen thermometer in question, or for quality checks
done on a routine basis. The verifier operates with either a 9-volt power supply plugged directly into any 120
vac wall receptacle, allowing extended use in the laboratory, or it can be completely powered by a 9-volt bat-
tery for portable use on the nursing floors.
There are two ways to use the portable blackbody to verify the calibration accuracy of the thermometer in
question, either (1) with a certified master reference infrared thermometer, or (2) by using two identical ther-
mometers as a reference against the one in question.
25
** Approximate number of readings when scanning for
5 seconds and reading the temperature display for
3 seconds before turning thermometer off.
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