Welch Allyn SureTemp PlusModule - User Manual - Manual (Page 11)

SureTemp Plus Module OEM Implementation Functional Description
Welch Allyn OEM Technologies Confidential 11
Module Operation
The SureTemp Plus module has two temperature methods that can be set via host commands:
normal (predictive) or monitor.
In addition, the SureTemp Plus module utilizes different algorithms based on probe type and
measurement modes commanded by the host. Oral, pediatric axillary, and adult axillary modes
are available in conjunction with the oral/axillary probe. Rectal temperatures are available only
when a rectal probe is connected to the module.
For details concerning the commands available in the communications protocol, see page 30.
Temperature Probes
Two types of probes are available for use with the SureTemp Plus module:- an oral/axillary probe,
and a rectal probe.
The SureTemp Plus board detects probe type: oral/axillary or rectal.
• Predictive oral temperatures are measured using oral/axillary probes in combination with
the predictive mode, providing a temperature reading in approximately 4-6 seconds.
• Adult axillary predictive temperatures are measured using oral/axillary probes in
combination with the adult axillary mode, providing a temperature reading in
approximately 12-15 seconds.
• Pediatric axillary predictive temperatures are measured using oral/axillary probes in
combination with the pediatric axillary mode, providing a temperature reading in
approximately 10-13 seconds.
• Rectal temperatures are measured using rectal probes which give a predictive
temperature in approximately 10-13 seconds.
The probe type is communicated to the SureTemp Plus board by a proprietary probe connection
interface. The axillary/oral probe incorporates a warming resistor in the tip to warm the probe
before placement in the mouth or axilla, thus speeding response.
Probe type recognition allows the microprocessor to initiate the proper algorithm for converting a
thermistor measurement into a temperature. It also allows the use of minor differences in
prediction parameters tailored to the temperature-taking site to help increase speed.
Probe Well and Switch
Probe Well
The removable probe well is part of the SureTemp Plus module. The integrated design allows the
host to mount the probe and the module in the same environment, and eliminates the host
requirements typically associated with the probe-well integration.