Instrument Security; Maintenance - Welch Allyn 690 Directions For Use Manual

Directions for use

Instrument Security

The SureTemp Model 692 thermometer is equipped with electronic security options
designed to reduce the risk of theft. These options include both Temperature Count and
Instant-On security features.
TEMPERATURE COUNT
The Temperature Count security feature allows you to take a set number of temperature
readings before the instrument goes into the security alarm state. The selectable counts
are 25, 50, 100, and 200. As the instruments nears the final reading, it will display
SECURITY COUNT as a warning, along with a number representing the last 5
temperature counts (i.e., 5,4,3,2,1) remaining on the security counter.
When the instrument enters the alarm state, it beeps for approximately 10 seconds. At
this time, the instrument displays SEC on the LCD along with SECURITY COUNT in the
ID field in the upper left-hand corner of the screen. The instrument is then disabled.
Returning the instrument to the wall holder resets the security count. If the count is set to
"OFF" the temperature count function is disabled and no security alarm will occur.
To set the Temperature Count security feature, please refer to the Service Manual.
INSTANT-ON
When the Instant-On feature is activated, the instrument goes into the security alarm
state within five seconds after removal from the wall holder. When the instrument enters
the alarm state, it beeps continuously and displays SEC on the LCD. Pressing the Mode
Selection button while removing the probe from the probe well, within 30 seconds of the
instruments removal from the wall holder, clears the alarm and allows the instrument to
operate. Returning the instrument to the wall holder will reset the instant audio alarm.
The options for the Instant-On feature are ON and OFF. In the OFF setting, no security
alarm will sound.
To set the Instant-On security feature, please refer to the Service Manual.

Maintenance

REPLACING THE BATTERIES
1. Remove the box of probe covers from the probe cover storage compartment on the
back of the unit.
2. Remove the probe and the probe well.
3. Press inward on the textured grips on each side of the assembly to remove the
battery door from the back of the unit.
4. Remove the three AA 1.5Vdc alkaline batteries and replace all three batteries with AA
1.5 Vdc alkaline batteries. Match the +/- polarity of each battery to the +/- symbols
inside the battery compartment.
5. Snap the probe cover storage assembly back into place.
WARNING Use size AA 1.5 Vdc alkaline batteries only. Use of any other
battery size or type could damage the thermometer and cause personal injury.
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