CTP-4141
Product Name
Yokogawa CTP-4141 8-Channel Thermocouple Input Module for CENTUM VP DCS(The naming follows Yokogawa’s process control conventions:
- “CTP”: Identifies the “Central Temperature Process” module series, dedicated to high-accuracy temperature signal acquisition.
- “4141”: Specifies the 8-channel thermocouple variant with cold-junction compensation (CJC) and redundant power support.
This module acts as a “temperature signal translator” in industrial processes, converting analog thermocouple signals into digital data that the CENTUM VP DCS can process, ensuring reliable temperature monitoring for critical applications.)
2. Product Description
The CTP-4141 is an industrial-grade thermocouple input module engineered by Yokogawa to address core challenges in process temperature monitoring: signal drift from thermocouples, inaccurate cold-junction compensation, and limited compatibility with diverse thermocouple types. As a key component of Yokogawa’s CENTUM VP DCS ecosystem, it integrates 8 independent thermocouple channels, built-in cold-junction compensation, and industrial-grade signal isolation—making it indispensable for:
- Chemical & Petrochemical: Monitoring reactor temperatures, distillation column trays, and heat exchanger outlets.
- Pharmaceutical: Ensuring precise temperature control in batch reactors and lyophilization (freeze-drying) processes.
- Food & Beverage: Tracking pasteurization temperatures and oven heating zones to meet regulatory compliance.
Key Functional Advantages
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Multi-Type Thermocouple CompatibilitySupports 7 common thermocouple types: J, K, T, E, R, S, and B—eliminating the need for separate modules for different sensors. Users can configure each channel independently via the CENTUM VP engineering tool, adapting to mixed-sensor setups (e.g., K-type for high-temperature reactors, T-type for low-temperature storage).
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High-Accuracy Cold-Junction Compensation (CJC)Features an on-board precision temperature sensor (±0.1°C accuracy) to automatically compensate for cold-junction errors—one of the primary sources of thermocouple measurement inaccuracy. This ensures overall temperature measurement accuracy of ±0.2°C (for K-type thermocouples, -100°C to +1300°C range), critical for processes requiring tight temperature tolerances (e.g., pharmaceutical API synthesis).
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Dual Isolation for Signal IntegrityIncorporates two layers of isolation:
- Channel-to-channel isolation: 250V AC (1 minute) prevents crosstalk between channels, even when measuring temperatures across widely varying ranges (e.g., 20°C and 800°C on adjacent channels).
