Thermo Fisher Electrode 8101BNWP

Consult the meter user guide for detailed instructions on pH calibration, manual pH calibration, and temperature compensation.

Refer to the PerpHecT meter user guide for instructions on temperature calibration and LogR temperature compensated pH measurements when using PerpHecT ROSS electrodes.

Is the meter set to automatically recognize the pH buffer at the measured temperature and an ATC probe is used?

Choose a buffer near expected sample pH.

Is the buffer at the same temperature as the sample?

Prepare the meter according to the meter user guide.

Proceed to the pH Measurement section.

Inspect the electrode for the following issues

Rinse off any salt buildup with distilled water

Remove any membrane/junction deposits as directed in the General Cleaning section

Refillable Electrode Maintenance

Flush the reference chamber with fresh ROSS fill solution

Refill the chamber with fresh ROSS fill solution

Soak the electrode in the 0.1 M HCl or HNO3 solution for half an hour

Stir the acid solution at a moderate rate

Soak the electrode in the 1:10 dilution of household laundry bleach or the detergent solution for 15 minutes

Stir the bleach or detergent solution at a moderate rate

Is a refillable electrode used?

Soak the electrode in ROSS pH electrode storage solution or standard pH electrode storage solution for at least one hour

Refillable Electrode Maintenance