Description
Milwaukee MA911B/2 Lab Grade Dual Junction pH Electrode with Extended Cable
DESCRIPTION
The MA911B/2 probe is a lab-grade gel-filled pH probe for use with Milwaukee monitors and controllers.
DESIGN
FEATURES Key features include:
DOUBLE BOND
The double joint design reduces the risk of clogging.
SPHERICAL
GLASS TIP The spherical glass tip provides the largest possible surface area for faster results.
RESIN
BODY The resin body is resistant to withstand accidental shocks and also protects the glass sensor bulb.
EXTENDED CABLE
Offers a 6.6 ft cable for greater flexibility in measurement.
USE AND CARE
PH meters often start to malfunction due to problems with the probe. The two parts of the pH probe that cause problems are the glass sensing bulb and the reference junction.
SENSOR BULB
The glass bulb loses sensitivity with use and will eventually fail. This is true for all pH probes.
REFERENCE
BINDING The reference junction is a small hole that allows the measuring instrument to compare the sample to a reference. The reading is generated based on the electrical difference between the sample and the reference. If the junction hole becomes clogged, the pH probe will no longer work.
You can extend the life of your pH electrode in the following ways.
STORAGE
The pH probe should be kept hydrated. Extended periods of dry storage will damage the sensitivity of the probe. Allowing the catheter to dry can also cause the attachment hole to become blocked.
Storage in a pH probe storage solution or pH calibration buffers will help solve both problems. Do not store in tap water or deionized water. This will damage the sensitivity of the tube.
The best way to store the probe is with the probe lid filled with storage solution or calibration buffer and tightened to prevent leakage. It is also recommended to store the electrode upright to further reduce the chance of leakage.
CLEANING
Sample debris can affect the sensitivity of the sensing bulb and block the binding. This is especially true if the sample has a lot of organic material. We recommend regularly soaking the electrode in a cleaning solution.
CALIBRATION
pH detector bulbs become less sensitive over time, so be sure to calibrate them periodically to maintain the accuracy of your PRO pH meter. In addition, it calibrates after cleaning or a long storage period.
