NEULOG CURRENT LOGGER 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 current sensor to a USB-200 module (they directly plug together).
3.
Open the NeuLog application.
4.
Click the “Tools” icon.
5.
Click the “Restore sensor’s factory defaults” on the menu.
Included with the sensor:
NeuLog NUL-202 Current Sensor Guide (this document)
Red (positive probe) and black (negative probe) wires with 4 mm plugs connected
directly to the sensor's body
Sensor specifications
Range and operation
modes
±2500 mA
ADC resolution
15 bit
Accuracy
1%
Resolution
1 mA
Max sample rate (S/sec)
3000
Experiment Duration
: 50 milliseconds to 31 days.
Sensor features:
Fully digital data
Rugged plastic ergonomic case
4 mm power and ground plugs for easy connectivity
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
In order to access the current sensor's page, choose "Products" on the main
menu and then "Current logger sensor".
In order to find the science experiments, choose "Experiments" on the main
menu of the NeuLog website, then choose "Physics", "Chemistry", "Biology" or
"Environmental Science".
Physics Experiments:
o
Ohm’s Law (P-10)
o
How Incandescent Light Bulbs Work? (P-11)
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 for free at any time using the provided firmware update.
The NeuLog current sensor houses a shunt resistor and an amplifier. The circuit's
current passes through the shunt resistor and its electric potential is measured using a
very fast, high input impedance differential operational amplifier with protected inputs.
Using
ohm’s law (I = V/R) the current is calculated from the known resistance and
voltage values.
The shunt resistor is very high power (to protect it in high current) and very small
resistance (in order not to affect the circuit conditions). The protection is up to 5 A.
