Yokogawa SC42-SP24 Sensor Module

Product Description

The Yokogawa SC42-SP24, also cataloged as the SC42-SP24 sensor module, operates as a dedicated measurement interface component for electrochemical signal acquisition within Yokogawa analytical liquid monitoring architectures. Configured for pH/ORP electrode signal processing in industrial analyzer loops, the Yokogawa SC42-SP24 (SC42-SP24 sensor module) provides direct conversion of high-impedance electrode signals into conditioned electrical outputs for controller-level interpretation.

Hardware Specifications

4-20 mA Signal Conditioning and Electrode Interface Behavior

The SC42-SP24 performs high impedance signal acquisition from glass electrode-based pH and ORP sensors. The input stage is designed to prevent loading effects on electrochemical cells by maintaining controlled input impedance levels across the sensing interface.

Signal conversion logic stabilizes raw millivolt-level electrode potentials before transfer to downstream analyzer processing units. The interface maintains electrical separation between measurement electrode circuits and control-side electronics to reduce noise injection during signal transmission.

Within Yokogawa analytical systems, the module operates as part of a distributed sensing chain where electrode diagnostics and signal linearization are handled through upstream transmitter logic and controller-level compensation algorithms.

Frequently Asked Questions

Q: Does the SC42-SP24 directly output a 4-20 mA signal?
A: The module primarily conditions electrode signals; final current loop conversion is handled by associated transmitter or analyzer electronics.

Q: Can the SC42-SP24 be used with both pH and ORP electrodes?
A: Yes. The input stage supports standard electrochemical electrode types used in Yokogawa SC-series measurement systems.

Q: Does the module provide electrical isolation between electrode and controller circuits?
A: The design includes separation between high impedance input circuits and downstream processing electronics to reduce signal interference.

Field Installation Guidelines

Install the SC42-SP24 within compatible Yokogawa SC-series sensor assemblies only. Ensure electrode connectors are fully seated to maintain stable high impedance signal paths.

Route electrode cables separately from high-voltage switching lines and VFD output conductors to avoid capacitive coupling and induced noise. Maintain proper shielding continuity and terminate shielding at the designated grounding reference point in the analyzer cabinet.

Avoid mechanical stress on electrode connectors, as microfractures in glass electrode interfaces can introduce measurement drift. Verify connector integrity before system energization and confirm stable baseline readings during commissioning.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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