Provides contacting conductivity measurement through a two-electrode flow cell.
Product Overview
SC42-SP24 is a Yokogawa SC42 two-electrode conductivity sensor with a stainless-steel plug-in body and plug/socket connection.
Its nominal cell constant is 0.1 cm⁻¹, suited to low-conductivity applications such as boiler feed water and surface water when the measurement range is compatible.
A Pt1000 element supports temperature compensation and indication; Yokogawa states it is not intended for process temperature control.
Performance
Supplies Pt1000 temperature information for analyzer compensation.
Uses the 0.1 cm⁻¹ cell constant to target low-conductivity liquid service.
Interfaces through the SC42 plug/socket arrangement and an approved analyzer cable.
Technical Details
| Manufacturer | Yokogawa |
|---|---|
| Exact model | SC42-SP24 |
| Measurement system | 2 electrode |
| Nominal cell constant | 0.1 cm⁻¹ |
| Temperature element | Pt1000 to IEC 751 |
| Body and electrodes | Stainless steel AISI 316L |
| Insulation | PEEK 450G |
| O-ring | Viton |
| Process temperature at 1 bar | 0 to 150 °C |
| Pressure at 25 °C | 0 to 10 bar |
| Temperature response t90 | Less than 3 min |
| Conductivity range | 1 µS × cell constant to 200 mS × cell constant, analyzer-range dependent |
| Immersion length | 110 mm |
| Connector contacts | Gold plated |
System Integration
- Match the analyzer input, cell constant and cable/connector arrangement.
- Confirm wetted-material compatibility with 316L stainless steel, PEEK and Viton.
- Use the appropriate FF40 or FS40 holder arrangement identified by Yokogawa.
- Stay within the combined process temperature and pressure envelope.
Applications
- Boiler-feed and surface-water conductivity measurement within the sensor range.
- Flow-through low-conductivity monitoring with a compatible holder and analyzer.
- Process water duties where stainless-steel wetted parts are chemically suitable.
About IndustryParts
https://www.industryparts.com/Sensor, holder and analyzer are reviewed together
IndustryParts keeps SC42-SP24 tied to its cell constant, wetted materials, process envelope and analyzer connection.
- 0.1 cm⁻¹ retained
- Wetted materials reviewed
- Holder and analyzer recorded
FAQ
Q01How should an SC42-SP24 enquiry be specified?
Provide the complete model, analyzer, cable, holder, process conductivity, chemistry, temperature, pressure and required certificates.
Q02Can SC42-SP24 replace SC42-SP34 directly?
No automatic substitution should be assumed. Their cell constants differ by a factor of ten, changing the intended range and analyzer configuration.
Q03What should be inspected on a used SC42-SP24?
Inspect the bore, electrodes, PEEK insulation, Viton seals, connector contacts and cell-constant evidence; contamination or deposits can alter measurement.
Q04When should SC42-SP24 be calibrated in the installed arrangement?
Calibrate after cleaning or replacement and whenever holder geometry, cable or analyzer configuration changes. Use the site-approved conductivity standard and procedure.
Q05What proves SC42-SP24 is ready for process use?
Confirm exact model, correct cell constant, stable temperature reading, satisfactory calibration and leak-free operation at controlled process conditions.
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