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SR20 Electrode for pH/Redox
Brand: Yokogawa Electric CorporationA non-flow type reference electrode can be used for processes that don’t contain components that poison the reference system.
The gel-type electrodes have a large area of porous PTFE junction for optimal resistance against electrode pollution.
The SR20-AP26 electrode is the optimal choice for processes that cannot stand contamination with KCl.
The SR20-AC22 electrode has a flexible PTFE tube.
Therefore this electrode can be applied in processes with frequent temperature- and pressure fluctuations.
Features- Easy maintenance
- No reference liquid wastage
- Maximum process pressure: 1,000 kPa (10 bar)
- High quality Ag/AgCl reference system (pin) which can stand high temperatures
- Liquid flow output preventing diaphragm fouling and poisoning the reference system
- High quality Ag/AgCl reference system (pin) which can stand high temperatures and temperature fluctuations
- Standard 3.3 m. KCl electrolyte, at temperature above 70º C thickened electrolyte is advised
- Automatic compensation for process pressure variations
- Chemical resistant viton bellow material
- Constant flow of reference liquid, independent of the process pressure variations for minimal diffusion potential
- Suitable for pure water applications and for polluting fluids
- Refillable, large KCl reservoir
Specifications
Applications
- Dirty or Pure Liquids
- High Temperatures
- Polluting or Non-Polluting Fluids
BSP Connection
- G 1/4” Male
Diaphragm Material
- Ceramic - SR20(D)-AC22, SR20(D)-AC32
- PTFE - SR20(D)-AP24, SR20(D)-AP26
- Sleeve - SR20(D)-AS52
Environmental Protection
- IP65
- Watertight
Flow Rate
- Maximum
Materials of Construction
- Chemical Resistant Viton - Bellow Material
- Mounting Kit Body: AISI 316 Stainless Steel - SR20-AC32
- Ryton R4 - Electrode Mounting Set
- Silver Chloride - Electrodes
Maximum System Pressure
- psi: 145 (kPa: 1,000, bar: 10)
NACE & NIST
- NIST
O-Ring Material
- Mounting Kit: Silicone
- Mounting Kit: Viton
Pressure Range
- psi: 0 to 150 (kPa: 0 to 1,000, bar: 0 to 10)
Resistance
- < 10 kiloohms at 25° C (77° F) - Diaphragm Resistance for Flow
- < 5 kiloohms at 25° C (77° F) - Diaphragm Resistance for Non-Flow
Ring Material
- Mounting Kit: Rubber
- Mounting Kit: Silicone
Screw Material
- Mounting Kit: AISI 316 Stainless Steel - Screw Piece
Sensor, Probe Material
- Ceramic
- pNa Glass
- PTFE
- Zirconium
Temperature Range
- 0° to 120° C (32° to 248° F)
- Dirty or Pure Liquids
- High Temperatures
- Polluting or Non-Polluting Fluids
