Neulog light sensor guide – Carolina NeuLog Light User Manual
Page 3
NEULOG LIGHT SENSOR GUIDE
Restoring sensor’s factory default settings:
Procedure:
1.
Connect the USB-200 to a PC, Mac, tablet, or smart device.
2.
Connect the light sensor to a USB-200 module (they directly plug together).
Please note there is no calibration required for this sensor.
3.
Open the NeuLog software.
4.
Click the “Tools” icon.
5.
Click “Restore sensor’s factory defaults” icon.
6.
If prompted to clear the graph, click either the “Off-line experiment” or “On-
line experiment” (whichever you are using).
7.
Click “Clear experiment results”.
8.
Resume from step 4.
Included with sensor:
NeuLog NUL-204 Light Sensor Guide (this document).
Sensor specifications:
Range and
operation modes
(in lx)
ADC
resolution
Resolution
Max
sample
rate
(S/sec)
Illumination
12 bit
0 to 1,000
1 lx
100
0 to 6,000
6 lx
0 to 150,000
150 lx
Signal
0 to 1,000
1 lx
3000
0 to 6,000
6 lx
0 to 150,000
150 lx
Sensor features:
Fully digital data.
Rugged plastic ergonomic case.
Push button switch for Start/Stop experiments in off line mode.
LED indicator of experiment status (blinks while collecting data).
Pre-calibrated sensing equipment.
Note: NeuLog products are intended for educational use.
Videos and experiment examples:
Videos, literature and other probes can be found at
www.neulog.com
Colors of Light -
Light and Shadow -
Light and Dark Colors -
Technical background:
The philosophy behind Neulog’s plug and play technology is based on each sensor’s
ability to store its own data due to an internal flash memory chip and micro-controller
in each plastic Neulog body. This technology allows the sensor to collect and then
store the digital data in the correct scientific units (
o
C,
o
F, Lux, %, ppm, for example).
The sensor is pre-calibrated at the factory. The built-in software in the logger can be
upgraded at any time using software.
Inside of the hard plastic casing lies a photodiode which reacts with photons to release
free electrons (photoelectrons). The amount of light striking the sensor is directly
proportional to the voltage generated by the photoelectrons released. The sensor
measures the general voltage released and thus calculates the light intensity.
There is no calibration needed for this sensor because the probe is permanent
connected to the controller and there is no need to change the conversion formula.
If the light readout is very low try reducing the luminosity (lx) level to a higher
sensitivity. This is done by selecting the “Module setup” button on the Light Sensor
icon in the Neulog software package when connected.