GF Signet 3-2767-2 ORP Differential Electrode, Bulb Tip, PT1000, 1" NPT Thread, 11". The Signet 2764-2767 Differential pH & ORP
electrodes are built with the DryLoc® connector,
a Ryton® body, and PTFE reference junction to
handle even the most extreme and harshest of
chemical applications.
These differential electrodes use the fieldproven
3-electrode differential technique: the pH
and reference electrodes are measured against
a ground electrode, insuring a steady and stable
signal. The key feature of the differential design
is the reference electrode. The reference element
is housed in a glass half-cell embedded
in the reference chamber and is protected from
compounds that may contain sulfides (H2S) and
metals, including lead, mercury, and silver. To
ensure a long service life, the reference features
a refillable electrolyte chamber and a replaceable
equitransferant salt bridge, both easily
serviced in the field. The patented porous PTFE
reference junction resists fouling, clogging and
chemical attack.
The other elements of the design are the
solution ground, the pH/ORP electrodes,
and the temperature element. The solution
ground eliminates noisy measurements by
draining electrical current away from the
reference electrode. The pH/ORP electrodes
are designed with a flat or bulb measurement
surface, and a temperature device that
is positioned at the tip of the measurement
surface, making the temperature response of
T95% less than 1 minute. Various temperature
devices offered include 3KΩ, 300Ω, or PT-1000
RTD. The electrodes are used with the Signet
2750 Sensor Electronics, which provides a
blind 4 to 20 mA output or using the digital
(S3
L) output may be used to connect to the
Signet 8900 instrument. The electrodes can
also be used with the Model 2760 preamplifier
to connect to the Signet 5700, 8750, or other
suppliers’ instruments.
Features:
Electrode Type: ORP Electrodes
Model: Bulb ORP differential electrode with bulb protection
Temperature Element: PT1000 RTD use w/2750 for S3L or 4-20mA output