The model identification used for EDI products consists of three groups, eg: FS-AGG-ST. The first group defines the basic product while the second and third groups define options associated with that product. This selection guide briefly describes products within the EDI F Series. For further information, see the individual data sheets.

F Series references are for fixed through wall applications and are available with Cu/CuSO4, Ag/AgCl, or Zn elements. EDI designs and builds custom through wall references for any installation. In addition, we offer through wall references with several common mounting styles as listed below.

FS Standard Duty Through-wall Reference

This electrode has a 3/4” NPT PVC nipple mount. It is widely used in power plant waterboxes and other ambient temperature, low pressure applications. The termination end threads into a Condulet-type fitting.

FH Heavy-Duty Through-wall Reference

This electrode, with a stainless steel nipple and a G-10 GRE element housing, is designed for heavy duty usage. It is pressure rated to 75 psi (0.5 MPa) and can be used where the installation must be resistant to external damage.

FE Process Vessel Reference

This is a unique two-piece reference consisting of a bridge which is permanently installed in a vessel and a reference which is either permanently or temporarily inserted into the bridge to make potential readings. It can be used at temperatures, pressures and environments where ordinary reference electrodes cannot survive such as in oil-field and pulp and paper applications.

FX Custom Through Wall References

The FX model designation is used for special or unusual customer requirements.