Emerson DVP04PT-S 4-Channel PT100 Temperature Module

Emerson DVP04PT-S 4-Channel PT100 Temperature Module - Precision RTD Measurement for Industrial PLC Systems

The Emerson DVP04PT-S 4-Channel Platinum Temperature Sensors Module delivers high-precision temperature measurement for industrial automation and process control applications. This RTD input module interfaces 3-wire PT100 sensors with DVP-series PLCs, providing 14-bit resolution and ±0.5% accuracy across a wide -200°C to 600°C measurement range, making it ideal for chemical processing, pharmaceutical manufacturing, food & beverage production, and HVAC control systems.

Core Technical Specifications

• Model Number: DVP04PT-S
• Input Channels: 4 analog temperature inputs per module
• Sensor Type: 3-wire PT100Ω RTD (3850 PPM/°C per DIN 43760, JIS C1604-1989)
• Temperature Range: -200°C to 600°C (-328°F to 1112°F)
• Resolution: 14-bit (0.1°C / 0.18°F)
• Accuracy: ±0.5% of full scale at 25°C; ±1% during 0-55°C operation
• Excitation Current: 1mA constant current for RTD sensors
• Response Time: 200ms × number of channels
• Power Supply: 24VDC (20.4-26.4VDC, -15% to +10%)
• Communication: RS-485 MODBUS ASCII/RTU

Industrial Temperature Measurement Applications

Chemical Reactor Temperature Profiling: Monitor multiple temperature zones in jacketed reactors, distillation columns, and heat exchangers using PT100 RTDs. The 4-channel configuration enables simultaneous measurement of inlet, outlet, jacket, and process temperatures from a single module, reducing wiring complexity and cabinet space requirements while maintaining ±0.5% accuracy for tight process control.

Pharmaceutical Sterilization Validation: Track autoclave chamber temperatures during sterilization cycles to ensure regulatory compliance with FDA 21 CFR Part 11 and EU GMP requirements. The 14-bit resolution (0.1°C) provides sufficient granularity for validation studies, while the -200°C to 600°C range accommodates both cryogenic storage and high-temperature sterilization applications.

Food Processing Pasteurization Control: Measure product temperatures in pasteurizers, retorts, and continuous cookers to ensure food safety and quality. The module's averaging function (configurable K1 to K4096) filters temperature fluctuations caused by product flow variations, providing stable process variable signals for PID control loops managing heating and cooling sequences.

HVAC Chiller & Boiler Monitoring: Interface with immersion RTDs in chilled water systems, hot water boilers, and glycol loops for building automation and energy management. The RS-485 MODBUS communication enables integration with BMS systems, SCADA platforms, and energy monitoring software for centralized temperature trending and alarm management.

Plastics Extrusion Temperature Control: Monitor barrel zone temperatures in plastic extrusion lines, injection molding machines, and blow molding equipment. The fast 200ms response time per channel enables rapid detection of temperature deviations, preventing material degradation and maintaining consistent product quality during high-speed production runs.

PT100 RTD Sensor Advantages

Superior performance compared to thermocouples and thermistors:

• Excellent Linearity: PT100 RTDs exhibit near-linear resistance vs. temperature characteristics, simplifying calibration and improving measurement accuracy
• Long-Term Stability: Platinum sensing elements maintain calibration for years without drift, reducing maintenance costs and recalibration frequency
• Wide Temperature Range: -200°C to 600°C coverage accommodates cryogenic to high-temperature applications with a single sensor type
• Interchangeability: DIN 43760 standard ensures PT100 sensors from different manufacturers are interchangeable without recalibration
• 3-Wire Configuration: Compensates for lead wire resistance, maintaining accuracy over long cable runs up to 100 meters

Advanced Module Features

Sophisticated signal processing and diagnostics:

Digital Averaging Function: Configurable averaging (CR#2 to CR#5, range K1 to K4096) filters electrical noise and process fluctuations. Higher averaging values provide smoother temperature readings for stable control, while lower values enable faster response to temperature changes during transient conditions like startup or product changeovers.

Self-Diagnostic Capabilities: Continuous monitoring of sensor integrity detects open circuits, short circuits, and out-of-range conditions. Diagnostic status flags alert operators to sensor failures before they impact process quality, enabling predictive maintenance and reducing unplanned downtime.

Flexible Data Format: 2's complement 16-bit digital output (13 significant bits) provides compatibility with standard PLC data types. The digital conversion range (K-2000 to K6000 for Celsius, K-3280 to K11120 for Fahrenheit) maps directly to temperature values, simplifying ladder logic programming and HMI display configuration.

RS-485 MODBUS Communication

Industry-standard protocol for seamless integration:

• Protocol Support: MODBUS ASCII and RTU modes for compatibility with diverse master devices
• Baud Rates: Selectable 4800, 9600, 19200, 38400, 57600, 115200 bps for network optimization
• Data Format: ASCII mode (7E1), RTU mode (8E1) with configurable parity and stop bits
• Multi-Drop Capability: Connect up to 32 modules on a single RS-485 bus for distributed temperature monitoring
• Network Topology: Supports daisy-chain wiring with termination resistors at network endpoints

DVP-PLC System Integration

Seamless expansion of DVP-series PLC I/O capacity:

• Module Addressing: Numbered 0 to 7 (0 = closest to MPU, 7 = farthest from MPU)
• Maximum Modules: Up to 8 analog modules per DVP-PLC main processing unit
• Digital I/O Conservation: DVP04PT-S does not consume digital I/O points, preserving discrete I/O for switches and relays
• Hot-Swap Limitation: Module replacement requires system power-down; not hot-swappable
• Series Connection Note: RS-485 communication disabled when connected in series with DVP04AD-S analog input module

Technical Specifications Summary

Why Choose Industrial Control Hub?

Your specialized source for genuine Emerson automation components:

• ✓ 100% authentic OEM products with full manufacturer traceability and warranty
• ✓ Expert PLC and temperature measurement technical support
• ✓ Extensive inventory of current production and legacy DVP-series modules
• ✓ Expedited global shipping to US, UK, EU, and Asia-Pacific markets
• ✓ Competitive pricing with volume discounts for project quantities
• ✓ Complete documentation, wiring diagrams, and programming examples

Complementary Temperature Measurement Products

Installation & Wiring Guidelines

• Sensor Wiring: Use 3-wire shielded cable for PT100 connections; ground shield at module end only
• Cable Length: Maximum 100 meters between module and RTD sensor with proper cable sizing
• Terminal Connections: Screw terminals accept 14-22 AWG wire; torque to manufacturer specifications
• Power Supply: Dedicated 24VDC supply recommended; avoid sharing with high-current loads
• RS-485 Network: Install 120Ω termination resistors at both ends of RS-485 bus

Ordering Information & System Planning

• DVP04PT-S: 4-Channel Platinum Temperature Sensors Module (this product)
• Compatible PLCs: DVP-series programmable logic controllers (DVP-ES2, DVP-EX2, DVP-SS2, DVP-SX2)
• Sensor Requirements: 3-wire PT100 RTD sensors per DIN 43760 standard
• System Capacity: Up to 8 modules per PLC (32 total temperature inputs)

Technical Documentation & Support

Complete installation manuals, wiring diagrams, MODBUS register maps, and ladder logic programming examples available upon request. Our application engineering team provides sensor selection guidance, loop calibration assistance, and troubleshooting support for complex multi-zone temperature control applications.

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