SC25V pH Sensor with External Titanium Liquid Earth Built-in Temperature Sensor and Hazardous Area Certification
Price:
Negotiable
MOQ:
1PCS
Delivery Time:
5-8 work days
Brand:
Yokogawa
Product Description
pH sensor SC25V with external liquid earth and built-in temperature sensor
Having a stable, reliable and accurate measurement is of vital importance for pH measurement and control. The SC25V pH sensor has been developed and designed to ensure it delivers these results in every application.
The built-in temperature sensor is located close to the pH measuring glass, resulting in increased accuracy of temperature compensation and therefore the pH measurement. The integrated large Titanium liquid earth improves measurement stability by countering any stray or ground loop currents that can destroy the reference sensor.
Key Features
- External titanium Liquid Earth
- Pt1000 integration in pH compartment providing highly accurate temperature compensation
- Certified for use in Hazardous area
- Versatile in-line, immersion or off-line installation
- CIP and Steam cleaning possible*
- Useable up to 130°C / 266°F
- Low conductivity applications possible from 10 μS/cm
- SC25V-ALP25 and -BLP25 for chemically harsh applications and high temperatures
- SC25V-AGP25 and -BGP25 for all General Purpose applications
- Available with ID-chip to be compatible with the new SENCOM platform
Measuring Elements
- pH glass electrode
- Silver/silver chloride reference
- Solid platinum electrode
- Pt1000 temperature sensor
Wetted Parts
| Component | Material |
|---|---|
| Sensor body / shaft | AR-Glass, PEEK |
| Earthing ring | Titanium |
| Measuring sensor | Glass (type G or L) |
| O-ring | Viton (EPDM back-up) |
| Reference junction | Porous PTFE |
Functional Specifications (at 25°C)
| Parameter | Specification |
|---|---|
| Isothermal point | pH 7 / 3.3M KCl |
| Reference system | Ag/AgCl with saturated KCl |
| Glass impedance (G-Glass) | 200 MΩ nominal |
| Glass impedance (L-Glass) | 775 MΩ nominal |
| Junction resistance | < 5 kΩ |
| Liquid outlet | Non-flow single junction |
| Temperature element | Pt1000 to IEC 751 |
| Asymmetry potential | 8 ± 15 mV |
| Slope | > 96% (of theoretical value) |
| Sensor length | 120 mm and 225 mm |
The temperature sensor included in the SC25V is designed for process compensation and for indication. It is NOT designed for process temperature control.
Dynamic Specifications
| Parameter | Specification |
|---|---|
| Response time pH | t₉₀ < 15 sec. (for 7 to 4 pH step) |
| Response time temperature | t₉₀ < 90 sec. (for 10°C step) |
| Stabilization time pH | < 2 min. (for 0.02 pH deviation during 10 sec.) |
Operating Range
| Parameter | Range |
|---|---|
| pH | 0 to 14 |
| Temperature (G-Glass) | -10 to +80°C (14 to 176°F) |
| Temperature (L-Glass) | +15 to +130°C (59 to 266°F) |
| Pressure | 0 to 10 barg (0 to 145 psi) |
| Pressure (under pressure) | 0 to 0.985 barg (0 to 14.36 psi) |
| Conductivity | > 10 µS/cm |
Damaging the screw thread might influence the maximum process pressure.
The pH operating range at room temperature is 0-14 pH, but at high temperatures or range outside 2-12 pH the lifetime will be seriously shortened.
The upper process temperature for the intrinsically safe version is limited by the ambient temperature (tₐₘₙ) defined for each temperature class (T3, T4, T5 and T6).
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Company
Xi'an Kacise Optronics Co.,Ltd.
Location
2nd Building, Tianyuan International Mansion, High-tech Zone, Xi'an City, Shaanxi Province, China
Contact Person
Evelyn Wang