اسم العلامة التجارية:
Yokogawa
رقم الموديل:
FU20 و FU24
The FU20 and FU24 all-in-one sensors demonstrate Yokogawa's "Simple is best" philosophy in sensor technology. These rugged sensors combine four measurement elements (pH, reference, temperature, ORP) in a single Ryton or PVDF (FU20) or Ryton (FU24) body, enabling simultaneous pH and ORP measurements.
Featuring number-coded integral or variopin cables and NPT threads for easy installation, these sensors include Quick Release Adapters (FU20) for convenient maintenance.
The FU20 combination sensor embodies Yokogawa's "Simply the best" approach with its 26mm diameter unbreakable PPS40GF (Ryton™) or PVDF body containing four measurement elements. The integrated 3/4" tapered thread simplifies installation, while the large volume gelled electrolyte and double junction system resist depletion and poisoning for extended service life.
The FU24's chemical-resistant PPS 40GF body excels in harsh pH applications with fluctuating pressure/temperature conditions. Its patented bellow design creates immediate pressure equalization, preventing fluid ingress and maintaining positive ion flow for stable measurements despite external pressure variations.
| Measuring Elements | |
|---|---|
| pH glass electrode | Solid platinum electrode |
| Silver/Silver chloride reference | Pt1000 temperature sensor |
| Wetted Parts | Material |
|---|---|
| Sensor body | PPS GF40 (NPT, FSM) or PVDF GF20+TZ4 (FTD) |
| Earthing pin | Solid Platinum |
| Measuring sensor | G-glass |
| LE glass tube | AR-glass |
| O-ring | Viton |
| Reference junction | Porous PTFE |
| Isothermal point | pH 7 / 3.3m KCl |
| Reference system | Ag/AgCl with saturated KCI |
| Glass impedance (Dome shape) | 200 MΩ nominal |
| Glass impedance (Flat Surface) | 750 MΩ nominal |
| Junction resistance | < 10 kΩ |
| Liquid outlet | non-flow double junction |
| Temperature element | Pt1000 to IEC 751 |
| Asymmetry potential | 8 ± 15 mV |
| Slope | ≥ 96% (of theoretical value) |
| Response time pH | t90 < 15 sec. (for 7 to 4 pH step) |
| Response time temperature (Dome shape) | t90 < 1 min. (for 10°C step) |
| Response time temperature (Flat surface) | t90 < 4 min. (for 10°C step) |
| Stabilization time pH | < 2 min. (for 0.02 pH deviation during 10 sec.) |
| pH | 0 to 14 |
| ORP | -1500 to +1500 mV |
| rH | 0 to 100 |
| Temperature (Dome shape) | -10 to +105°C (14 to 221°F) |
| Temperature (Flat Surface) | +15 to +105°C (59 to 221°F) |
| Pressure | Barg See Graph 1 Barng 0 to 0.985 (0 to 14.36 psi) (under pressure) |
| Conductivity | > 50 μS/cm |
| Measuring Elements | |
|---|---|
| pH glass electrode | Solid platinum electrode |
| Silver/Silver chloride reference | Pt1000 temperature sensor |
| Wetted Parts | Material |
|---|---|
| Sensor body | PPS 40GF |
| Earthing pin | Solid Platinum |
| Measuring sensor | G-glass |
| LE glass tube | AR-glass |
| O-ring | Viton |
| Reference junction | Porous PTFE |
| Bellow system | Viton |
| Isothermal point | pH 7 / 3.3M KCl |
| Reference system | Ag/AgCl with saturated KCI |
| Glass impedance (Dome shape) | 200 MΩ nominal |
| Glass impedance (Flat Surface) | 750 MΩ nominal |
| Junction resistance | < 15 kΩ |
| Liquid outlet | non-flow double junction |
| Temperature element | Pt1000 to IEC 751 |
| Asymmetry potential | 8 ± 15 mV |
| Slope | ≥ 96% (of theoretical value) |
| Response time pH | t90 < 15 sec. (for 7 to 4 pH step) |
| Response time temperature (Dome shape) | t90 < 1 min. (for 10°C step) |
| Response time temperature (Flat surface) | t90 < 4 min. (for 10°C step) |
| Stabilization time pH | < 2 min. (for 0.02 pH deviation during 10 sec.) |
| pH | 0 to 14 |
| ORP | -1500 to +1500 mV |
| rH | 0 to 100 |
| Temperature (Dome shape) | -10 to +105°C (14 to 221°F) |
| Temperature (Flat Surface) | +15 to +105°C (59 to 221°F) |
| Pressure | Barg See Graph 1 Barng 0 to 0.990 (0 to 14.36 psi) (underpressure) |
| Conductivity | > 10 μS/cm |
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