More information about how a pH Meter works in this link.
OMEGA Engineering is pleased to offer the ALpHA®
Series of pH electrodes. The special internal design
allows rapid, stable readings to be taken even during
large temperature shifts. The double junction construction
prevents silver ions from contacting the sample,
eliminating reactions with heavy metals, sulfides, and
proteins. ALpHA Series electrodes are available in a
variety of styles to suit a wide range of applications.
The low maintenance sealed designs are economical
and easy to use. Their porous polyethylene junction
resists clogging and provides good chemical
compatibility with many solutions. The refillable ALpHA®
Series electrodes have a unique spring-loaded knob
that opens the sleeve junction to provide fresh reference
fluid. The refillable style also has a twist-seal refill hole
that opens by simply turning the collar, making the
refilling process less awkward. ALpHA® Series pH
electrodes are available in epoxy body and glass body
styles. The epoxy model is used for applications that
require a more rugged electrode; the glass style offers
a better range of chemical compatibility. All ALpHA®
Series electrodes can measure the full 0-14 pH scale
(0-12 pH without sodium ion error) and can withstand
temperatures from 0 to 100°C (32 to 212°F).
Application Suggestions PHE-4810 Sealed with an epoxy body and removable
bulb guard. Suitable for general laboratory
applications that require a double junction style. PHE-4815 Sealed with a glass body. Suggested for
applications similar to the PHE-4810, but with broader
chemical compatibility. PHE-4821 Refillable electrode with epoxy body and
removable bulb guard. Suitable for samples that can
cause junction fouling. Also features Rapid Renewal
Junction. PHE-4830 Sealed, with a flat measuring surface.
Suitable for measuring semi-solids, slurries, and
viscous materials. PHE-4841 Refillable with a glass body. Suggested for
similar applications suited to the PHE-4821, but
provides better chemical compatibility. Rapid Renewal
† All amounts shown in EUR, GBP, or USD Note: Each electrode supplied with 750 mm (2 1/2 ft.) of cable. Comes with complete operator’s manual.