3
Troubleshooting
Press the power button on the sensor to turn it on. (The Bluetooth LED will
flash red.) Start the Graphical Analysis app on your device and select the
desired sensor from the list of available sensors. If connecting via Bluetooth, the
LED will be steady green. Click on the sensor icon and select the desired
channel(s) from the list of available sensors. Expose the light aperture to a
variety of UV, visible light, or colors and confirm that the sensor reading
responds appropriately. Press the power button to toggle the white LED on and
off.
View additional FAQ's related to this product at
www.vernier.com/gdx-lc
Repair Information
If you have followed the troubleshooting steps and are still having trouble with
your Go Direct Light and Color, contact Vernier Technical Support at
[email protected] or call 888-837-6437. Support specialists will work with
you to determine if the unit needs to be sent in for repair. At that time, a Return
Merchandise Authorization (RMA) number will be issued and instructions will
be communicated on how to return the unit for repair.
Accessories/Replacements
Item
Order Code
Micro USB Cable
CB-USB-MICRO
Micro USB-C Cable
CB-USB-C-MICRO
Go Direct 300 mAh Replacement Battery
GDX-BAT-300
Warranty
Vernier warrants this product to be free from defects in materials and
Water Resistance
The Go Direct Light and Color is not water resistant and should never be
immersed in water.
If water gets into the device, immediately power the unit down (press and hold
the power button for more than three seconds). Disconnect the sensor and
charging cable, and remove the battery. Allow the device to dry thoroughly
before attempting to use the device again. Do not attempt to dry using an
external heat source.
How the Sensor Works
Light Sensor:
The sensor uses a silicon photodiode. It produces a voltage that is
proportional to light intensity. The spectral response approximates the response
of the human eye, as shown in this diagram.
UV Sensor:
The sensor uses a photodiode sensitive to UVA light. It
incorporates photodiode, amplifiers, and analog/digital circuits into a single
chip using a CMOS process. When the UV channel is activated, it is able to
detect UV intensity and reports this value as a relative term.
RGB Color Sensor:
The color sensor uses a combination of sensors that have a
peak response that corresponds roughly to red, green, and blue light. It
incorporates photodiodes, amplifiers, and analog/digital circuits into a single
chip using CMOS process.
The software analyzes the relative contribution of each primary light color based
on a peak response of 615 nm for red, 525 nm for green, and 465 nm for blue.
Each of the sensors will register a light intensity (relative units).
