ORP Sensor (ORP-BTA)
Specifications and User Guide
TROUBLESHOOTING
-Primary Test: The ORP Sensor consists of an ORP Electrode connected to an Electrode Amplifier using a BNC connector. Connect the Electrode Amplifier to the interface. Run the data-collection program and set up the ORP Sensor to read in units of mV. Place the tip of the sensor in a buffer solution of known pH and check the readings.
Typical readings, in mV, of various buffer solutions are
pH 4 buffer solution: 350 – 360 mV
pH 7 buffer solution: 270 – 280 mV
pH 10 buffer solution: 100 – 110 mV
The buffer solutions were prepared using Hydrion buffer capsules, available from Flinn Scientific.
RELATED TIL ENTRIES
–Do any of your sensors require special storage?
–Where can I get calibration solutions for an ORP sensor?
–How can I keep my pH or ORP storage solution from spilling when the sensor is in use?
–Electrode Amplifier Troubleshooting and FAQs
–I found an ORP electrode that was stored dry. How can I test it to see if the electrode is still working?
–Why are the readings from my ORP sensor noisy?
–Can I use the ORP Sensor for Cyclic Voltammetry?
CALIBRATION
-Calibrate? Not usually, but it depends on the circumstances surrounding your data collection.
-In most experiments done with an ORP Sensor, the precise potential in mV is not critical; rather, the large rate of change of potential is the most important factor. Thus, you should not have to perform a new calibration when using the ORP Sensor for most experiments. Use the calibration that is automatically loaded with this auto-ID sensor.
-If you are doing water quality testing or performing a chemistry experiment that requires a very accurate calibration, you will need two commercial ORP standards. Conduct a two-point calibration, as detailed in the sensor booklet: Specifications and User Guide
–Where can I get calibration solutions for an ORP sensor?
RELATED VERNIER PRODUCTS
-For ORP electrode storage solution, use pH Storage Solution (PH-SS)
-For pH buffer solutions, use pH Buffer Capsule Kit (PH-BUFCAP)