Operating Characteristics; Basic System Description; Instrument; Probe - Welch Allyn SureTemp Plus 690 Service Manual

2. Operating Characteristics

2.1

Basic System Description

The Welch Allyn
thermistor thermometers. Users can measure a patient's temperature in the oral, axillary, and
rectal body sites of adult, pediatric, and newborn patients.
LCD Display
Celsius/Fahrenheit Toggle
Button
Pulse Timer Button (M692 only)
Recall Button
Mode Selection Button
The thermometer consists of six main components: the instrument, the probe, the removable
probe well, the probe cover, the batteries, and the wall mount.

2.1.1 Instrument

The instrument includes a removable probe well and detachable probe.

2.1.2 Probe

The detachable probes are available in short (standard) or long cord versions and include a
mechanical probe cover ejection mechanism, which is triggered by the user through a simple
finger press. The probes are designed for easy exchange in the clinical environment.
• The short (standard) coiled cord probe stretches to approximately 4' and has a retracted
length of approximately 10".
• The long version stretches to approximately 9' and has a retracted length of
approximately 28".
SureTemp® Plus Service Manual
® ®
SureTemp Plus Model 690 and 692 thermometers are portable electronic
Probe
Thermometer
Figure 1: Model 692 Thermometer
Probe Cover Ejection Button
Box of Probe Covers
Removable Probe Well
Latching Probe
Connector
Battery Door/Probe
Cover Storage
Holder
5