YOKOGAWA CP450C

Description

Technical Specifications:

• Product Type: Conductivity/Resistivity Converter

• Power Supply: AC 100-240V or DC 12-24V

• Enclosure: Stainless steel housing with IP66 rating

• Output Signal: 4-20 mA DC isolated

• Measurement Range: 0.01 µS/cm to 1000 mS/cm (auto-ranging)

• Accuracy: ±1% standard, ±0.5% optional

• Temperature Compensation: Automatic linear or NTC thermistor

• Communication: HART protocol

• Weight: 1.5 kg

• Dimensions: 160 x 120 x 80 mm

• Mounting Options: Panel, pipe, or wall mount

Functional Features:

• Auto-Ranging Capability: Eliminates the need for manual scale changes during concentration shifts

• HART Communication: Enables technicians to adjust settings remotely using a handheld device

• Input Isolation: Reduces noise issues in electrically noisy environments like pump stations

• Temperature Compensation: Supports two methods—basic linear adjustment or precise NTC thermistor integration

• Modular Design: Components can be swapped out in minutes without special tools

• Stainless Steel Enclosure: IP66 protection against water jets and dust

Performance Parameters:

• Measurement Accuracy: ±1% standard, ±0.5% optional

• Measurement Range: 0.01 µS/cm to 1000 mS/cm with auto-ranging

• Output Signal: 4-20 mA DC isolated for seamless integration with most PLCs and DCS systems

• Temperature Stability: Maintains measurement stability despite ±15°C temperature swings

Material Composition:
Stainless steel housing with IP66 rating provides robust protection against corrosive environments and physical damage. The modular design facilitates component replacement without special tools.

Structural Characteristics:

• Housing: Stainless steel enclosure with IP66 protection

• Mounting Flexibility: Supports panel, pipe, or wall mount configurations

• Modular Construction: Allows quick component swapping

• Compact Dimensions: 160 x 120 x 80 mm

Working Principle:
The CP450C conductivity converter measures the electrical conductivity or resistivity of a liquid by passing a current through the solution between electrodes. The unit processes the measurement signal and converts it to a standardized 4-20 mA DC output signal. Temperature compensation—either automatic linear or via NTC thermistor—corrects readings for temperature variations. Auto-ranging functionality automatically adjusts measurement scales as concentration changes. HART protocol enables bidirectional communication for remote configuration and diagnostics.

Advantages and Strengths:

• Stainless steel IP66-rated housing withstands harsh conditions

• 4-20 mA output works seamlessly with most PLCs and DCS systems

• HART communication for remote configuration and diagnostics

• Input isolation reduces electrical noise interference

• Auto-ranging eliminates manual scale adjustments

• Modular design enables rapid component replacement

Applicable Industries:

• Chemical plants

• Water treatment facilities

• Pharmaceutical clean water systems

• Wastewater treatment plants

• Food processing lines (cleaning solution concentration monitoring)

• Desalination plants

Model Series:
Part of Yokogawa’s conductivity measurement product line. Often paired with Yokogawa’s CENTUM VP controllers in distributed control systems.

Installation Requirements:

• Power Connection: AC 100-240V or DC 12-24V power supply

• Mounting: Choose from panel, pipe, or wall mount options

• Environmental: Suitable for harsh environments with IP66-rated protection

Usage Precautions:

• Environmental Protection: IP66-rated stainless steel housing provides protection against water jets and dust

• Electrical Noise: Input isolation reduces noise in electrically noisy environments like pump stations

• Temperature Compensation: Select appropriate compensation method (linear or NTC thermistor) based on application requirements

• Communication: Utilize HART protocol for remote configuration and diagnostics