An inexpensive flow cell accelerates the velocity past the electrode in a predictable manner. The 3/4" flow cell's restricted 1/4" diameter orifice provides a 2 ft/sec velocity per GPM past the electrode's flat sensing surface. Flow rates of 1 to 5 GPM provide excellent cleaning velocities in low viscosity applications. Exact control of flow rates is not required.

Lower flow rates are used when viscosities are higher.    Even 1 GPM still provides excellent flow in shear to assure that fresh material is always at the measuring surface.

In the food or dairy industry, only a tiny rate of fluid  product needs to be pumped through the flow cell.  This material can then be directed to waste disposal, with no chance of glass contaminating the consumers product.   Rates of 0.5 or even 0.2 gpm will provide accurate measurement of pH.  The pH glass sensing technology is acknowledged to be the easiest to use, more repeatable, more accurate, more dependable and lower cost than solid state sensing technologies.

For most installation, select the S645CD electrode, the flow cell and the cable assembly. 

If Automatic Temperature Compensation is required for your system, select the S645CD electrode and the FC60TC-#-L-EC-EC.