NEULOG CHLORIDE SENSOR GUIDE
7. Click the “Load data from sensors” button.
8. Select which experimental data to upload. (5 experimental runs can be
stored at one time on the NUL-239 chloride sensor)
Restoring sensor’s factory default settings:
Procedure:
1. Connect the USB-200 to a PC, Mac, tablet, or smart device.
2. Connect the chloride sensor to a USB-200 module (they directly plug
together).
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-239 Chloride Sensor Guide (this document).
NeuLog chloride (Cl
-
) sensor electrode.
Chloride (Cl
-
) Ionic Strength Adjuster (ISA)
Chloride (Cl
-
) 1000 ppm standard
Range and operation modes
1.8 to 35,500 mg/L
1.8 to 35,500 ppm
0.1 mg/L from 1.8 to 1,000 mg/L
250 mg/L from 1,000 to 35,5000 mgL
Sensor features:
Fully digital data.
Rugged plastic ergonomic case.
PermaFil ion selective electrode.
Chloride probe connected to the sensor body by a flexible rubber-coated
wire.
Protective hard-plastic storage cap.
Push button switch for Start/Stop experiments in off line mode.
LED indicator of experiment status (blinks while collecting data).
Note: NeuLog products are intended for educational use.
Videos and experiment examples:
Videos, literature and other probes can be found at www.NeuLog.com
http://www.NeuLog.com/Products/ChlorideloggerSensor.aspx
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 chloride sensor uses a permanently filled ion selective electrode to accurately
measure the amount of chloride ion in a solution. Chloride ions interact directly with a
specialized electrode membrane at the end of the probe. When the ions interact with
the electrode’s membrane a small voltage is generated. This voltage is compared
against the voltage in the internal reference electrode and measured using an internal
voltmeter. Once the voltage is measured, a chloride ion concentration is calculated
using the sensors software.
The Ionic Strength Adjustor (ISA) is used to standardize the strength of the ions in
various solutions to give the most accurate readings.
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