pH controllers and pH instruments from AWE

pH

pH is the measurement of Hydrogen Ion concentration in an aqueous liquid, which determines whether a liquid is neutral, acid or alkali (base). pH is usually measured with a glass combination electrode which produces a millivolt potential proportional to the pH - this is them amplified inside the pH instrument to give an instantaneous value.

A portable pH meter is often used to corroborate a pH reading from a permanently installed instrument. A pH transmitter is an installed piece of equipment which converts the pH value to either a 0 - 20mA or a 4-20mA current signal for use with a PLC or chart recorder. Our pH controllers incorporate control relays as well as a (0) 4-20mA signal. Depending on which model of controller - these can be used to control a piece of control equipment such as a pump or solenoid valve. Often these pieces of control equipment can be controlled proportionally that is - causing the device to speed up, or dose faster / slower depending on the deviation from the desired set-point.

We refer to our glass bodied laboratory style pH sensors as pH electrodes, and our industrial bodied pH sensors as our pH probes. These are available with and without temperature compensation and with a wide range of connection types.

pH Instruments & pH Electrodes

Portable pH Meters

Portable pH Meters

Portable pH meters are portable instruments and used to take accurate sample pH readings in a wide variety of applications or process types.

Automated Water & Effluent Ltd offer two styles of portable pH instrument the popular stick type and the traditional hand held type with a process connector and removable pH electrode attached to the instrument with a cable.

View all products in this range


pH Transmitter

pH Transmitter

The pH Transmitter is an instrument for mounting near a pH electrode system to provide a signal proportional to the pH measurement value (from 0 - 14.00pH).

The best pH transmitters have zero and span calibration controls and a local display so that the transmitter can be buffered or calibrated locally to the pH electrode.

The current output is an industry standard 4 – 20 mA output with the same two wires which power the 24 VDC transmitter carrying the current output.

View all products in this range


pH Controller

pH Controller

pH Controllers are pH instruments which have the ability to operate a remote device to provide controls over a process.

Our range of pH controllers include devices which offer standard on / off control, proportional control and even PID control of pH.

In addition to the control options - pH controllers include a 4-20mA output signal. In non-proportional systems this is normally linked back to a recorder or BMS system and with proportional control, the 4-20mA can be expanded to control a dosing pump or other piece of process equipment.

View all products in this range


pH Electrode

pH Electrode

A good quality pH electrode is the secret to any pH measurement application.

Automated Water & Effluent Ltd we carry a wide range of glass bodied pH electrodes. Our range of high quality pH electrodes are used in a number of applications including swimming pools, laboratories, process control, water & effluent treatment.

A glass bodied pH electrode can also be paired with one of our inline electrode holders; where the electrode holder becomes part of the pipework.

For PVDF or PVC bodied pH electrodes designed to be directly screwed into pipework please see our pH probe section.

View all products in this range


pH Probe

pH Probe

Our pH probe range are designed for use in industrial environments where they reliably provide accurate pH measurements.

Manufacturing in chemically resistant materials such as PVFD our pH probes are combination types, with non-fouling junctions and available with tuff-tips and magna-flow junctions.

For ease of installation each pH probe is threaded allowing the probe to mounted directly into pipework or connected to a riser tube allowing the pH probe to be dip mounted in a vessel.

For glass bodied pH probes or use in electrode holders or laboratory style applications please see our pH electrode section.

View all products in this range


Inline pH electrode system

Inline pH electrode system

When continuous pH measurements inside a pipe or pipework are required we are able to offer our inline pH electrode holders.

Within our range we have solutions for different diameters of pipework and each inline electrode holder is compatible with our standard pH electrodes and pH probes. Each features a simple quick release mechanism for removing the pH probe or electrode for maintenance or calibration.

Our retractable inline pH electrode systems allow pH electrodes to be removed from pressurised pipework or vessels without having to halt the process being measured.

View all products in this range


Dip pH Probe Assemblies

Dip pH Probe Assemblies

When continuous pH measurement inside an open vessel is required our dip pH probe assemblies offer the perfect solution.

We offer a number of dip mounting pH electrode assemblies each of which can be mounted into tanks, pits, sumps, lagoons or any other unpressurised vessel. 

Available in custom lengths up to 3 metres and with tuff tip, automatic temperature and auto-clean options - our dip pH electrode systems are designed to provide accurate and reliable pH measurements in tanks and processes.

View all products in this range


pH Simulators

pH Simulators

pH simulators precisely replicate the signal from a pH electrode or Redox (ORP) electrode and are designed for testing and checking pH and Redox instruments.

Designed for water treatment and process engineers the pH simulator is a robust battery operated unit which connects directly to a pH instrument using a process connector.

As well as simulating pH and Redox signals the output resistance can be increased allowing the operator to test for connection problems and isolate errors in the field.

View all products in this range


pH Buffer Solution

pH Buffer Solution

Our pH buffer solution range are designed for use by professionals working in the water treatment, effluent treatment and process control applications.

As well as offering accurate pH values which can be certified and traced to national standards - we can offer pH values outside for the 4.00pH, 7.00pH, 9.00pH and 10.00pH range including 2.00pH and 12.00pH specifically for use in process industries.

View all products in this range

Search