GE Electric | 531Ｘ305NTBANG1 | RTD input module
Product Description:
The GE 531X305NTBANG1 is a High-Density RTD (Resistance Temperature Detector) Input Module for the PACSystems™ RX3i PLC platform. It provides isolated, precision temperature monitoring for industrial processes by converting 2/3/4-wire RTD resistance signals into calibrated digital values, enabling real-time process control and safety functions.
Product Parameters / Specifications (531X305NTBANG1):
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Feature
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Specification / Description
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Manufacturer
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GE Intelligent Platforms (Emerson)
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Series
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PACSystems™ RX3i (IC695 Series)
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Part Number
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531X305NTBANG1
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Module Type
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Analog Input (RTD)
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Channels
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16 channels (individually isolated)
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Supported Sensors
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Pt100, Pt200, Pt500, Pt1000, Ni120, Cu10 (2/3/4-wire config)
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Measurement Range
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-200°C to +850°C
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Resolution
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0.01°C
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Accuracy
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±0.1°C (Pt100 @ 0°C), ±0.25°C (full range)
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Excitation Current
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0.5 mA ±0.01% (per channel)
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Lead Resist. Comp.
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Automatic 3/4-wire compensation
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Sampling Rate
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100 ms per channel (all ch. scanned in 1.6s)
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Isolation
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250V AC channel-to-channel & channel-to-backplane
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Open-Circuit Detect.
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Auto-detection with alarm
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Power Consumption
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1.5W @ 5V DC (backplane)
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Operating Temp.
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-40°C to +70°C
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Certifications
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UL/cUL, CE, IEC 61131-2, RoHS, SIL2 (IEC 61508)
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Key Features:
- Wire Config Flexibility – Auto-compensates 2/3/4-wire RTDs without jumpers.
- Ultra-Low Drift | ±10 ppm/°C excitation current stability.
- Noise Immunity | >120dB common-mode rejection at 50/60 Hz.
- Diagnostic Capabilities | Sensor break, short-circuit, and out-of-range alerts.
- Hot-Swap Ready | Supports live insertion/removal in RX3i backplanes.
- Compact Design | 2-slot width (saves control panel space).
Primary Function & Purpose:
Converts RTD resistance values into high-accuracy temperature data for:
- Critical asset protection via over/under-temperature shutdowns.
- Process optimization through closed-loop thermal control.
- Predictive maintenance using temperature trend analytics.
Typical Applications:
- Motor/Bearing Monitoring – Winding temperature in large motors & generators.
- HVAC Systems – Duct, chill water, and coil temperature feedback.
- Industrial Machinery – Extruder barrels, hydraulic oil reservoirs.
- Energy Systems – Transformer windings, stator cooling loops.
- Food Processing – Pasteurization tanks, freeze tunnel control.
Application Fields:
Essential for precision temperature-critical systems in:
- Power Generation: Nuclear/coal plant feedwater heaters, condenser monitoring.
- Oil & Gas: Pipeline temperature tracking, LNG cryogenic storage.
- Chemicals: Reactor jacket temperature control, distillation columns.
- Water Treatment: Thermal disinfection processes.
- Pharma: Sterilization chambers, freeze-dryers.
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