The pH 502 series of controllers offer many features to increase the level of contorl available in your plant. These instruments can be configured to utlize P, PI,PID controlling. WIth this feature, the pH 502 takes the place of three instruments that only allow one configuration each. The pH 502 line includeds models that incorporate control through analog output to drive any compatible device, such as an electrovalve or pump. Models equipped with a Solid State Relay are also available to ensure maximum life of the switching device. Each model has a differential input for a grounding bar to extend electrode life. Several models come with RS485 port, as well as analog recorder output. The fully programmable microprocessor memory has a 3 month backpower supply.
