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AlpHa Measurement Solutions
10540 Rockley Road
Houston, TX 77099

(Toll Free) 800-522-7920
(voice) 832-456-4100
(fax) 832-456-6642

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ABB (TBI) Replacements

This series of Van London Co. (aka Van London pHoenix Co.) pH and ORP sensors are designed to retrofit the TBI/Bailey sensor assemblies. They are manufactured with a unique solid polymer reference gel for extended life in the most severe applications.

C621 & C621H Stainless Steel Conductivity Probes

The Model C621 & C621 H conductivity electrode provides rugged construction and long term stability through the use of specially treated 316 stainless steel. This probe is engineered to minimize errors due to polarization effects, and respond rapidly to changing temperatures. The C621 series is compatible with most conductivity transmitters that are designed for a standard two electrode cell (not a 4-cell type).

Conductivity Family

The Van London Co. (aka Van London pHoenix Co.) two electrode conductivity sensors are compatible with most existing analyzers and are available in a variety of mounting and temperature compensator configurations.

CSPETNN Toroidal Conductivity Sensor

The Van London Co. (aka Van London pHoenix Co.) Toroidal Conductivity is perfect for applications that would foul or attack the metal of contacting sensors.

Endress + Hauser® Direct Replacements

This new line of direct replacements for E&H®-style electrodes is now available for a wide variety of pH or ORP applications. They are designed dimensionally to retrofit with existing installations. Expensive equipment changes are no longer necessary.

Honeywell (L&N)

Van London Co. (aka Van London pHoenix Co.) Housings can be machined from numerous materials with several electrode guard designs and various insertion depths. Custom electrode designs can maximize sensor in harsh environments.

LiveTap™ Insertion Sensor Assembly

The LiveTap™ Insertion Assembly is ideal for use in areas where down time is critical by allowing removal of the electrode from a live line or tank without process interruption.  Fitted with a 1.5" ball valve, the pH or ORP electrode can be removed for maintenance by sliding the 316L Stainless Steel sheath through the valve and closing it off.  Your electrode is now safe to remove.

Retractable Lock-N-Load Sensor Assembly

All you need to do is Lock-N-Load to install a pH or ORP electrode into any pipeline. This is the first in-line assembly that doesn't require ball valves, cables, or costly, complex hardware to quickly insert or remove an electrode from a pipeline without interrupting the process.


LpH - Non Glass pH Electrode for HF Applications

Mark 7 Series For pH And ORP Applications (Hot Tap)

The Mark 7 insertion assemblies permit continuous pH or ORP monitoring in pressurized vessels or lines.
Specifications are for mounting onto a weldalet, a pipe tee or flange. To reduce the maintenance
downtime required, electrode connections terminate inside an explosion-proof junction box which houses
the preamp as well.

Mark X Pneumatic Retractable Sensor Assembly For pH And ORP

The Van London Co. (aka Van London pHoenix Co.) Mark X Pneumatic Retractable pH / ORP Sensor Assembly permits continuous pH or ORP monitoring where service must be performed without process interruption. It can be mounted vertically or inclined in reactors of pilot and production plant facilities.

Mettler (Ingold®) Direct Replacements

This new line of direct replacements for Mettler Ingold®-style electrodes is now available for a wide variety of pH or ORP applications. They are designed dimensionally to retrofit with existing installations. Expensive equipment changes are no longer necessary.

Model P821 Sensor

Specially designed for convenience of electrode replacement where minimal troubleshooting and maintenance downtime are of prime importance. The P821 is suitable for virtually all applications where a high performance sensor is required, either in-line or submersible installation. The electrode features a detachable cable with an integral preamplifier which eliminates any ground loop problems. The preamp converts the high impedance signal into a stable, noise free signal.

pHastTrac® 2000

The proven design of the pHastTrac® 2000 is ideal for applications in the food, process, pharmaceutical and many other industries where frequent cleaning and calibration of the pH and/or ORP electrode is required. Incorporated in this system is a clean / cal chamber that allows the user to remove the electrode from a process line or tank while maintaining production integrity.

Rosemount® Replacements

Van London Co. (aka Van London pHoenix Co.) Rosemount® pH replacement sensors have been field proven in a variety of harsh applications. An inventory stocking arrangement reduces lead times from weeks to days. Housed electrodes generally consist of two parts: a 12mm glass-bodied electrode and housing machined to accept that electrode. Minimal factory assembly is required before shipment to the customer site.

Sensorex® & Signet® Replacements

The low profile design allows the process flow to clean the pH / ORP sensor tip, and with the addition of the Van London Co. (aka Van London pHoenix Co.) Tuff Tip™ the bulb is protected from physical damage.

Submersible Sensors For pH, ORP & Conductivity Applications

The Mark I-A and Mark VI-B sensors will continuously monitor pH, ORP, and Conductivity in tanks, vessels, or canals where liquid levels tend to vary. Typical applications include chlorine cells, latex coagulation tanks, and effluent sumps. It can be installed in atmospherically sealed vessels with use of a tank mount fitting.

SZ 283 Potentiostatic electrode

This sensor is designed for the measurement of Free Chlorine, Chlorine dioxide and Dissolved Ozone in water.

Note: This specific model of potentiostatic chlorine sensor is currently not available to OEM customers, and is only available when ordered as a complete package with the B&C CL 7685 Potentiostatic Cl2 Controller and SZ 7231 - SZ 7233 Flow Cells.

Threaded pH/ORP Sensors

These inline pH and ORP electrodes are designed for mounting on standard 1” or ¾” pipe tees for continuous pH or ORP flow-through monitoring. They are constructed with a sealed solid polymer reference which requires no pressurization or refilling during use. With the large reference surface area, reference clogging is not a problem.

Tuff-Fet & Transmitter Non-Glass pH Electrodes

The Tuff-Fet™ sensor is a solid state, ion selective field-effect transistor or ISFET. This technology does not require a glass membrane, making it perfect for Food-Grade Applications.

Twist-Lock Conductivity Sensors And Adapters

The Twist-Lock sensor, with locking pins and a dual o-ring seal, consists of a 12mm sensor and automatic temperature compensator permanently sealed into the housing. Using the sensor and an adapter, with several different connection sizes available, allows conversion of a standard pipe tee to a flow through sensor assembly.

Twist-Lock Series For pH Or ORP Applications

The Twist-Lock™ sensor and adapter is designed to convert a standard pipe tee into a low cost, low maintenance flow-through sensor assembly. Only a ¼ turn is required for field maintenance or sensor replacement; threading is eliminated. The adapter is available in a variety of materials & connection sizes for easy installation.

Yokogawa® Replacements

Van London Co. (aka Van London pHoenix Co.) Yokogawa pH and ORP electrode replacement designs have been field proven in a variety of harsh applications. In most cases, direct replacements will outperform original equipment specifications.