AWE Direct

AWE Instruments

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Accessories to make up any pH measuring and control system you will need various accessories to complete the scheme we are able to supply these items usually from stock to suit most typical installations if you do not see what you need please call us we will be able to help.

pH extension cables the majority of pH measurements in our experience is to do with the connections between the electrode and controller due to the very high impendence input to a pH instrument the cable is critical. Simply using any old cheap coax cable will not give the desired results for long. We have a special coax cable made for us to the correct charaistics and impendence our type LMK1. We offer a service of making up pH extension cable with the correct connectors fitted and impendence tested all ready to install. Made any reasonable length you require to suit the instrument in use.

For installations requiring auto temperature compensation and using one of our electrodes fitted with an integral temperature sensor we offer a weatherproof junction box with connector to suit and cabling to run back to your controller.

For installations where the electrode is mounted remotely we are able to offer our Micro transmitter, which is a head mounted preamplifier for use with our P7685 series instruments. The micro transmitter is mounted close to the electrode and connects to the control via a multicore cable which power the micro transmitter allowing the signal to be amplified local to the electrode reducing the effects of long cable and the possibility of picking interference.

For very long distances between the electrode and controller use the P3630-W two wire transmitter as the can be calibrated close to the electrode and the cabling cost on long runs is more cost effective.

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pH Transmitter Range

Within our pH Transmitter range we offer the P3630 pH Transmitter. This instrument is one of our top selling instruments and offers an excellent way of transmitting a pH signal to a PLC or other device. 

The unit is normally located within close proximity to a pH electrode giving the operator a visual indication of the current pH output. The pH Transmitter then transmits the pH value using a 4-20mA (or 0 - 20mA) current signal to a PLC or Chart Recorder which can be located up to 1000 metres away. The same 2 wires which transmit the pH signal as a 4-20mA current signal are also used to power the pH transmitter. This "loop powered" system ensures an efficient transfer of the signal and means that the pH transmitter can be housed in either a small din rail mounting enclosure or as a surface mounted pH transmitter system.