Exergen TAT-5000 Calibration Verification Procedure, Normal body temperature range, otherwise

Care and Maintenance

*Automatically applied when temperature is within	** Approximate number of readings when scanning for
normal body temperature range, otherwise	5 seconds and reading the temperature display for
reads surface temperature.	3 seconds before turning thermometer off.

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