Yokogawa SC4A-S-PR-NN-002-05-T1 Conductivity Sensor
A stainless-steel two-electrode retractable conductivity sensor with Pt1000 temperature element and intrinsic-safety execution.
Product Overview
SC4A-S-PR-NN-002-05-T1 is a Yokogawa SC4A two-electrode conductivity sensor configured for use with a PR10 retractable fitting. Its wetted body and electrodes are AISI 316L stainless steel, with PEEK insulation and Viton sealing.
The 002 code identifies the 0.02 cm⁻¹ nominal cell-constant execution; 05 is the fixed-cable option code and T1 specifies the Pt1000 intrinsically safe execution. The full order code must remain intact because material, fitting, cell constant, cable and approval selections are encoded together.
Performance
- Measures process conductivity through a two-electrode cell.
- Uses a Pt1000 element for temperature compensation and indication.
- Supports retractable installation through the specified Yokogawa PR10 fitting.
- Provides stainless-steel wetted construction for compatible process media.
- Carries the documented intrinsic-safety execution for approved installations.
Technical Details
| Manufacturer | Yokogawa |
|---|---|
| Model | SC4A-S-PR-NN-002-05-T1 |
| Product Family | SC4A conductivity sensors |
| Measurement Method | Two electrodes |
| Nominal Cell Constant | 0.02 cm⁻¹ |
| Mounting Execution | PR retractable; use Yokogawa PR10 fitting |
| Wetted Body / Electrodes | AISI 316L stainless steel |
| Insulation | PEEK |
| Seal | Viton |
| Temperature Element | Pt1000 to IEC 751 |
| Functional Conductivity Range | 1 µS × cell constant to 200 mS × cell constant |
| Fixed-Cable Process Temperature | 0 to 100 °C at 100 kPa |
| Short Sterilization Temperature | Maximum 135 °C under documented conditions |
| Pressure Range | 0 to 10 barg for stainless-steel/titanium executions |
| Underpressure Range | 0 to -0.5 barg |
| Cable Code | 05 fixed-cable execution |
| Approval Code | T1 intrinsically safe execution |
System Integration
- Verify process chemistry, cell constant, pressure, temperature and hazardous-area design before installing SC4A-S-PR-NN-002-05-T1.
- Use the Yokogawa PR10 retractable fitting and follow its isolation and withdrawal procedure.
- Keep the sensor electrically isolated from earth as required by the intrinsic-safety installation.
- Route the fixed cable without sharp bends, moisture entry or parallel high-energy interference.
- Calibrate the complete analyzer loop and verify temperature compensation, insertion depth and leak integrity.
Applications
- Low-conductivity liquid measurement within the documented cell-constant range.
- Retractable process installations requiring sensor service without rebuilding the process nozzle.
- Conductivity measurement with Pt1000 temperature compensation.
- Approved intrinsically safe installations using the specified barrier and host arrangement.
FAQ
What must be checked before ordering SC4A-S-PR-NN-002-05-T1?
Confirm the complete code, process chemistry, PR10 fitting, 0.02 cm⁻¹ range, fixed-cable requirement, analyzer and hazardous-area loop design.
Can SC4A-S-PR-NN-002-05-T1 be installed directly in a process nozzle?
Its PR execution is intended for the specified Yokogawa PR10 retractable fitting; nozzle, valve and withdrawal clearances must follow that design.
How should SC4A-S-PR-NN-002-05-T1 be acceptance-tested?
Inspect code and wetted parts, measure insulation and Pt1000 continuity as permitted, then calibrate the assembled analyzer loop with a suitable standard.
What commonly causes a slow SC4A-S-PR-NN-002-05-T1 response?
Check coating, bubbles, inadequate flow, incorrect insertion, temperature compensation and cable condition before replacing the sensor.
Which records support the T1 execution of SC4A-S-PR-NN-002-05-T1?
Retain the barrier or host identity, entity-parameter check, area classification, cable route, earth-isolation evidence and applicable approval revision.
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