Figure 1. Response curves for red, green, blue, and unfiltered light for
the Spot sensor.
Troubleshooting
• If the Wireless Light Sensor loses Bluetooth connection
and will not reconnect, try cycling the ON button. Press and
briefly hold the button until the status LEDs blink in
sequence, then release the button. Start the sensor in the
usual way.
• If the sensor stops communicating with the computer
software or tablet application, try restarting the software or
application.
• If the problem persists, press and hold the ON button for 10
seconds, then release. Start the sensor in the usual way.
• If the above steps do not fix the problem, turn Bluetooth off
and back on for your computer or tablet, then retry.
About the battery
Battery usage
Battery life is very important to making the sensor simple and
always ready to use. Therefore, like all PASCO wireless
products, the Wireless Light Sensor is designed for long battery
life. For example, the sensor turns itself off after a few minutes of
inactivity to preserve battery life.
The Wireless Light Sensor includes a three volt coin cell battery
(CR2032). This battery should provide more than one year of
battery life, but the actual amount depends on factors such as
the data collection sampling rate.
Sensor storage
If the sensor will be stored for many months, we recommend that
you remove the battery and store it separately to avoid
damaging the sensor in case of a battery leak.
Maximizing battery life
One of the factors that affects battery life is the storage
temperature. Therefore, avoid storing the sensor in very cold or
very hot environments.
Battery removal and replacement
If the sensor’s Battery Status LED blinks red, the battery may
need to be replaced. Replacing the battery involves opening the
Battery Drawer on the back of the sensor, removing the old
battery, installing a new battery of the same type, and closing
the Battery Drawer. The procedure requires a small, thin blade
screwdriver (or a fingernail) and a CR2032 three volt battery,
such as those provided in the PS-3504 Coin Cell Battery Pack.
This battery is also commonly available in
electronic and commercial stores.
Open the battery drawer
1 cm
Step 1
Step 2
Hold the sensor with the top side facing up. Use a thin blade
screwdriver or a fingernail to push down slightly on the center
section of the battery drawer. See Step 1 in the figure above.
Pull the battery drawer out of the sensor about one centimeter.
See Step 2 in the figure above.
Turn the sensor over so the bottom is
facing upward. Pull the battery drawer
the rest of the way out of the sensor.
Replace the battery with another
identical battery.
Close the battery drawer
Align the battery drawer with the slot on the end of the sensor
and push the battery drawer all the way back into the sensor
until you hear a click.
The discharged battery must be recycled or disposed of
separately from typical household waste. For more information,
see the Battery disposal guidelines under Regulatory
information.
Product Guide | 012-14935B
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