Ryton Body Flat Surface Electrode – FLS pH 800

The FLS 870 pH electrode line is designed for superior performance in demanding industrial applications. Built with a rugged Ryton body and an auto-cleaning flat pH surface, it ensures accurate and reliable measurement even in dirty liquids and aggressive solutions. A built-in Pt1000 temperature sensor enhances precision, while the wide junction design improves stability in the presence of suspended solids. The 870 electrodes feature a ¾” threaded connection, allowing easy in-line installation from the electrode bottom or submersible mounting from the electrode head. Specialized versions are available for unique requirements, including horizontal mounting (-HM), low-conductivity samples (-LC), and aggressive environments with HF <2% or low pH (-HF). A versatile and durable solution for continuous monitoring.

Ryton Body Flat Surface Electrode – FLS pH 800

Key Feature of Ryton Body Flat Surface Electrode – FLS pH 800
  • Temperature sensor combined
  • Flat surface electrodes
  • Tough Ryton body
  • Double threaded body for in line and submersion installation
  • Double junction technology
  • HM option for horizontal mounting
  • HF option for liquids with HF (max 2%)
  • LC option for liquid with a conductivity lower than 100µS/cm
FLS pH 800 Image

Technical Details of Ryton Body Flat Surface Electrode – FLS pH 800

Specification Details
Operating Range pH Electrodes: 0-14 pH (0-12.3 pH without Na⁺ error)
Pipe Size Range DN15 to DN100 (0.5” to 4”)
Zero voltage point new electrode performances 7.00 pH ± 0.2 pH
Efficiency new electrode performances > 97% @ 25°C (77°F)
Response time new electrode performances pH: < 6 sec for 95% of signal change
Type Sealed double junction
Electrolyte Solidified Gel 3.5M KCl 0.1M KCl for LC electrode version / solidified gel KCl 3.5M
Secondary junction Nylon filament
Wire Ag/AgCl
Type 3/4” NPT threaded body for submersion or in-line installation
Max Working Pressure / Temperature 6.7 bar @ 75°C (100 psi @ 170°F) 5.7 bar @ 81°C (85 psi @ 180°F) 3.3 bar @ 100°C (50 psi @ 212°F)
Wetted Materials Body – PPS (Ryton®), HDPE, pH Glass, leaded glass Reference Junction – Porous HDPE Sensing Surface – Glass membrane
Manufactured under ISO 9001, ISO 14001
Certification CE, EAC
Technical Measurement of Ryton Body Flat Surface Electrode – FLS pH 800
Ryton Body Flat Surface Electrode - FLS pH 800 Drawing
Part No. Description / Name Applications / Operative Range Cable (sold separately) Connection Installation Weight (gr.)
PH870CDTC Ryton double junction flat surface pH electrode with Pt1000 0 – 14 pH (0 – 12.3 pH without Na⁺ error) Not required 5 mt (16.5 ft) 3/4” NPT 250
PH870CDTCHM Ryton double junction flat surface pH electrode with Pt1000 0 – 14 pH (0 – 12.3 pH without Na⁺ error) / Horizontal mounting Not required 5 mt (16.5 ft) 3/4” NPT 250
PH870CDTCLC Ryton double junction flat surface pH electrode with Pt1000 0 – 14 pH (0 – 12.3 pH without Na⁺ error) / Low conductivity (10 µS/cm < conductivity < 100 µS/cm) Not required 5 mt (16.5 ft) 3/4” NPT 250
PH870CDTCHF Ryton double junction flat surface pH electrode with Pt1000 0 – 14 pH (0 – 12.3 pH without Na⁺ error) / Presence of HF (max 2%) Not required 5 mt (16.5 ft) 3/4” NPT 250

1 – Cable: 5 m (16,5 ft)
2 – Ryton body
3 – Flat pH glass
4 – Porous HDPE junction
5 – Temperature sensor inside pH stem
6 – 3⁄4” NPT threads
7 – Wrench flat

Customization & Processing Options

Customizations Option Available for Ryton Body Flat Surface Electrode – FLS pH 800

At Petron Thermoplast, we offer customized PVDF fittings to meet your specific system requirements.
Customization options include: