pH/ORP-3500 series pH/ORP Online Meter
One kind of popular and cost-effective online pH/ORP controller.


One kind of popular and cost-effective online pH/ORP controller.


Time-tested hydraulically balanced piston, seal and spacer design to pilot service flow and regeneration
Solid, lead-free brass valve body for superior strength and durability
Backwash capacity handles tanks up to 30″ diameter
1-1/2″ top mount control valve ideal for smaller size commercial/industrial applications
Consistent brining regardless of salt levels with timed brine refills
Choice of 7 or 12 day clock, manual or meter
Continuous flow rate of 51 GPM with a backwash of 49 GPM




One kind of popular and cost-effective online pH/ORP controller.


Fluorescence quenching principle, no need for internal filling, no oxygen consumption, and easy maintenance;
The service life of the fluorescent membrane cap is more than one year (under ideal conditions);
Original altitude, atmospheric oxygen partial pressure, temperature compensation, to improve the authenticity of the data;

Typical applications • Widely used in thermal boiler deaerator water and large and medium-sized industrial boiler feed water; • Operational supervision of reactor Primary circuit, secondary circuit circuits and condensate system; • On-line analysis of dissolved oxygen in circulating water of heat exchange system; • Deaeration control of marine fresh water system, thermal system and…


Applicable to all kinds of small and medium-sized single-stage, double-stage reverse osmosis control system. With simple operation, complete measurement and configuration, highly integrated system


Widely used for electric power,electronics,metallurgy,petrochemical,pharmaceutical ,food and beverage,environmental protection field.


High Cost-Effective ,widely used for chemical industry,paper making industry,industrial coating,pharmaceutical,food,beverage,municipal water,Environmental and so on.