BONDERITE® E-CO ST4 is a modular system device that can be used to measure independent variables, including:

  • pH measurement
  • contact conductivity measurement
  • conductivity measurement with inductive technology (free maintenance)

In the two standard configurations, designed for cycle control with four active zones or cycle control with three active zones plus washing with demineralised water, coupled with VCL or VMS-MF electronic dosing pump, this system is one of the most advanced there is in terms of control and dosing of concentrated products in pre-painting treatment of metals.

View the brochure HERE.


All calibration and parameter settings are carried out by pressing the lexan buttons on the front: it no longer works via trimmer, therefore the level of protection of the device is higher than the traditional standard.

Output connections are configurable by the keypad, as are the set points, maximum alarms, minimum alarms, the PWM, and pulse output.

A special, password protected menu allows measures to be converted into arbitrary scales, for example: conductimetry in % of product.


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