1.General Introduction
Yokogawa SC25F is a 12mm combined PH & ORP sensor which communicates through bi-directional digital communication modbus RS485, it's equipped with 12mm PG13.5 connector and can be installed in the process by using Retractable fitting PR10, Flow fitting FF20, Subassembly FS20, Immersion fitting FD20 and etc.
2.General Specifications
Items | Description |
Measuring principle | pH glass electrode, Silver Chloride reference, Solid Platinum electrode, Pt1000 temperature sensor |
Wetted parts | Sensor body: PPS, glass Reference junction: Porous PTFE Earth pin: Solid Platinum O-ring: Viton |
Functional specifications (at 25°C) | Isothermal point: pH 7 Reference system: Double junction, Ag/ AgCl with saturated KCI Glass impedance: G-glass 400 MΩ nominal, L-glass 775 MΩ nominal Liquid outlet: Non-flow junction Junction resistance: 0.2 to 5 kΩ Temperature element: Pt1000 to IEC 751 Asymmetry potential: 8 ± 15 mV Linearity PH (Slope): > 96 % (of theoretical value) |
Dynamic specifications (at 25°C) | Startup time sensor: < 60 sec Response time pH step (7 to 4): < 15 sec for 90% Response time temp step (10°C): < 1.5 min for 90%, Stabilization time (0.02 pH unit/10 s): < 2 minutes |
Operating range | pH: 0 to 14 Temperature: G-glass -10℃ to 80℃ (14℉ to 176℉) , L-glass +15℃ to 130℃ (59℉ to 266℉) Pressure: 0 to 10 bar (0 to 145 PSIG) Conductivity: > 10μS/cm |
3.Model Selection
Main Code | Suffix Code | Description | ||
SC25F | 12mm SENCOM pH sensor | |||
Sensor type | -AGP25 | General purpose | ||
-ALP25 | High temperature chemical resistant. | |||
Sensor length | -120 | 120 mm | ||
-225 | 150mm |
4.External Dimensions
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