The following selection table is provided
as quick reference for process pH electrode and ORP electrode selection.
| Standard use |
S200CD, S222CD S265CD,S267CD |
All models Flat-surface, self-cleaning |
| Slurry applications |
Not available. See next column. |
All models Flat-surface, self-cleaning |
| Viscous materials |
Not available. See next column. |
All models Flat-surface, self-cleaning |
| Low Ionic conditions |
970070LC- low ionic version of S200CD-LC
970xxx customer number. Available in all models. Contact Sensorex for part numbers |
970xxx customer number.
Available in all models
S650CD-LC for submersion pH (CPVC)
S645CD-LC for by-pass pH (CPVC)
S655CD-LC for insertion/wet tap pH (CPVC)
S655CD-ORP-LI for insertion/wet tap ORP (CPVC)
S660CD-LC for in-line (3/4") pH (CPVC)
S661CD-LC for in-line (1") pH (CPVC) |
| Temperature above 160° F |
970204 high temp version of S200CD-HT
Also available in all other models contact Sensorex for part numbers
|
for in-line models S660CD, S661CD, S662CD and ORP versions.
Other mounting styles require 970xxx customer number:
S645CD-HT for side-stream (CPVC)
S645KD-HT for side-stream (PVDF)
S650CD-HT for submersion (CPVC)
S650CD-ORP-HT for submersion ORP (CPVC)
S650KD-HT for submersion pH (PVDF)
S655CD-HT for insertion pH (CPVC)
S655CD-ORP-HT for insertion-ORP (CPVC)
S655KD-HT for insertion pH (PVDF)
S655KD-ORP-HT for insertion ORP (CPVC)
|
| HF (hydrofluoric acid) |
Not available. See next column |
Add HF to end of part number
example: Submersion model S650CD becomes S650CDHF |
| Ground loop problems |
Not available. See next column |
See Ground Loop Interrupt Electrodes |
| Etchants (nickel Sulfamate,..) |
Not available. See next column |
Silica based reference gel use 970XXX numbers:
S645CD-SI for by-pass ORP (CPVC)
S645KD-SI for by-pass ORP (PVDF)
S650CD-ORP-SI P for submersion ORP |
| Mixed water and solvents |
Not available. See next column |
KYNAR versions of electrodes –See Flat Surface, Self-Cleaning pH and ORP Electrodes |
| Horizontal or upside down mounting |
Not available. See next column |
Standard for insertion model (S655CD,S655KD)
Not available in submersion mount
970XXX numbers for other mounting styles:
S660CD-HM for in-line 3/4" (CPVC)
contact Sensorex for models not listed
|
| Heavy
metals, sulfides, cyanide, proteins in sample (Cd, Zn,…) |
S200CD, S222CD
S265CD,S267CD |
All models
See Flat-surface, self-cleaning |
| Water, oil mixtures |
Not available. See next column |
S645CD and FC60C (accelerates sample past sensor faster to prevent oil build-up and fouling) |
| Liquids containing dissolved gases |
Not available. See next column |
See Horizontal Mounting above (reduces penetration of dissolved gases into electrode) |
| High pH (up to pH 14) |
S200CD,… all models |
All Models
See Flat-surface, self-cleaning |
| Low pH <2 |
S200CD,….. |
All models
See Flat-surface, self-cleaning |
