Westinghouse 5X00119G01 | High-Precision Resistance Temperature Detector (RTD) Input Module

Description

Product Overview

Key Technical Specifications

Parameter​	Specification​
RTD Types Supported​	Pt100 (100Ω at 0°C), Pt1000 (1000Ω at 0°C), Ni120, Cu10 (2-wire/3-wire/4-wire configurable)
Temperature Range​	-200°C to +850°C (depending on RTD type)
Accuracy​	±0.1°C typical (at 25°C ambient); ±0.1% of reading (maximum)
Resolution​	16-bit A/D conversion (0.01°C)
Isolation​	3000V AC channel-to-channel (prevents cross-talk and surge damage)
Power Supply​	24V DC nominal (±10% tolerance, compatible with Ovation system power)
Operating Temperature​	-40°C to +85°C (IEC 60068-2 compliant, suitable for extreme environments)
Storage Temperature​	-40°C to +104°C (withstanding extreme storage conditions)
Humidity Range​	0–95% RH (non-condensing, resistant to moisture)
Update Rate​	Configurable scan rates up to 10 Hz per channel (adapts to slow/fast process dynamics)
Dimensions​	~100 mm × 80 mm × 50 mm (compact for cabinet installation)
Weight​	~0.5 kg (1.1 lbs, lightweight for easy handling)
Certifications​	CE, UL (compliant with international safety standards)

WESTINGHOUSE 1C31234G01

Field Application & Problem Solved

• Process Optimization: Maintaining optimal temperatures for chemical reactions, power generation, or manufacturing processes.
• Fault Detection: Identifying overheating equipment (e.g., motors, transformers) to prevent failures.
• Safety: Ensuring compliance with safety regulations (e.g., boiler temperature limits in power plants).

1. Supporting Multiple RTD Types: It accepts Pt100, Pt1000, Ni120, and Cu10 RTDs, eliminating the need for multiple modules.
2. Providing High Accuracy: The ±0.1°C accuracy ensures reliable temperature data, even in high-noise environments.
3. Integrating with Ovation DCS: Seamless communication with the Ovation controller enables real-time adjustments and fault logging.

• Power Generation: Monitoring boiler feedwater temperature, turbine exhaust temperature, and generator winding temperature.
• Chemical Processing: Tracking reactor temperature, distillation column temperature, and pipeline fluid temperature.
• Manufacturing: Measuring oven temperature, furnace temperature, and conveyor belt heating element temperature.

Installation & Maintenance Pitfalls (Expert Tips)

1. Verify RTD Compatibility:
   • Always confirm the RTD sensor’s type (e.g., Pt100 vs. Pt1000) and configure the 5X00119G01 accordingly. Mismatched configurations can lead to incorrect temperature readings.
   • Example: A client once experienced a 5% error in temperature readings because the module was configured for Pt100 instead of Pt1000.
2. Ensure Proper Wiring:
   • Use shielded twisted-pair cables​ for RTD connections to reduce electromagnetic interference (EMI). Avoid running cables alongside power lines—this is a classic cause of “ghost” temperature fluctuations.
   • Tip: Ground the cable’s shield at one end (preferably the module end) to ensure effective shielding.
3. Check Power Supply Stability:
   • The 5X00119G01 requires a stable 24V DC power supply (±10% tolerance). Use a multimeter to verify the power supply’s output before connecting the module—fluctuations can damage the module’s input circuitry.
4. Calibrate Annually:
   • Even though the 5X00119G01 has high accuracy, calibrate it annually using a precision RTD calibrator. Compare the module’s readings to the calibrator’s output—if the deviation exceeds ±0.1°C, recalibrate using Emerson’s calibration tool.
   • Case Study: A refinery avoided a process upset by detecting a 0.2°C error in the 5X00119G01’s readings, which was corrected through calibration.

     

     WESTINGHOUSE 1C31234G01

Technical Deep Dive & Overview

1. Ovation Controller: Located in the central control room, it processes temperature data from the 5X00119G01 and sends commands to field devices.
2. 5X00119G01 Module: Installed in a remote I/O node or control cabinet, it receives resistance signals from RTD sensors.
3. RTD Sensors: Attached to rotating equipment (e.g., turbine shafts) or process vessels, they generate resistance signals proportional to temperature.

• The RTD sensor’s resistance changes with temperature (e.g., Pt100 has a resistance of 100Ω at 0°C and 138.5Ω at 100°C).
• The 5X00119G01 receives the resistance signal and applies signal conditioning​ (e.g., filtering, amplification) to remove noise.
• The module converts the conditioned resistance signal to a digital value (via a 16-bit ADC) and sends it to the Ovation controller via the Ovation network.
• The Ovation controller uses the temperature data for process control (e.g., adjusting boiler fuel flow) or fault detection (e.g., triggering an alarm if temperature exceeds limits).

• Compatibility: Works with all Ovation DCS controllers and RTD sensors.
• Ruggedness: The conformal coating withstands dust, water, and vibration—ideal for harsh industrial environments.
• Ease of Use: Software-configurable settings (e.g., RTD type, update rate) reduce commissioning time.

Final Notes