ORP Sensor (ORP-BTA)
Specifications and User Guide

-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.

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?

-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?

-For ORP electrode storage solution, use pH Storage Solution (PH-SS)
-For pH buffer solutions, use pH Buffer Capsule Kit (PH-BUFCAP)