7
Operating the S+D Sensor
For best results, the Sensor needs a clear view of the sky.
• Press and hold the
S+D SENSOR ON/OFF
button to turn on the
receiver. You should be outdoors in an open area. If the status
indicator light glows red immediately (continuously, not flashing),
the batteries are exhausted to the point where GPS operation is
not possible and the batteries must be replaced. The status indi-
cator light on the S+D Sensor will initially flash red while the S+D
Sensor calculates its position relative to the GPS satellites. The
text “SEARCHING” may appear on the watch display if using a
compatible Timex® watch.
• The status indicator light will flash green when the S+D Sensor
has successfully acquired signals from the satellites. Speed and
distance information is now being transmitted to the watch (or
other device).
• To turn off the S+D Sensor, press and hold the
S+D SENSOR
ON/OFF
button for one second. The indicator light will glow red
while you are holding the button and then go out, indicating that
the S+D Sensor has shut down.
• The S+D Sensor will shut itself off automatically if any of the fol-
lowing events occur:
6
— The batteries become exhausted.
— No motion is detected for 15 consecutive minutes.
— No GPS signals are detected for 15 consecutive minutes.
Wearing the Speed and Distance S+D Sensor
For best results, strap the S+D Sensor to your upper arm. You may
also clip it to your waist. Wear your watch so it is always within
1 meter (about 3 feet) of the S+D Sensor; for best results it should
be worn on the same arm as the Transceiver. Any clothing worn
over the S+D Sensor must be dry and free of metal.
STATUS
INDICATOR
S+D SENSOR
ON/OFF
