Excellent PLC
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Product Overview
The ABB Bailey NIAI03 is a termination module specifically designed for RTD (Resistance Temperature Detector) signal interfacing within the INFI 90 distributed control system. It works in conjunction with the IMASM03 Analog Slave Module to provide reliable, high-accuracy temperature measurements through 3-wire RTD sensors. The NIAI03 acts as a passive interface, linking field devices to the control system for high-resolution analog signal acquisition.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | RTD Analog Input Termination Module |
| Compatible Slave Module | IMASM03 |
| Supported RTD Types | 100 ohm platinum (IPTS 68, U.S. Lab Std.) |
| Number of Channels | 8 RTD channels |
| Wiring Type | 3-wire RTD |
| Mounting | Panel mounted in INFI 90 termination setup |
| Operating Temperature | 0°C to 70°C |
| Humidity | 0–95% RH (non-condensing up to 55°C) |
| Altitude | Sea level to 3000 m |
| Dimensions (W x H x D) | 120 x 150 x 50 mm |
| Weight | 0.5 kg |
Applications
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Industrial process temperature monitoring
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Power plants and utility monitoring
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Petrochemical refineries
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Pharmaceutical process control
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Food and beverage manufacturing
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General factory automation with INFI 90 DCS systems
Product Advantages
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Dedicated Compatibility: Seamlessly integrates with IMASM03 modules
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Precision Measurement: Supports high-accuracy 100-ohm platinum RTDs
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Reliable Interfacing: Designed for low-noise signal transmission
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Field Proven: Used extensively in critical industrial environments
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Modular Integration: Fits into INFI 90 systems with standardized connectivity
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Ease of Installation: Clearly marked terminals and cable routing
FAQs
Q1: What type of sensors does the NIAI03 support?
A1: It supports 3-wire 100-ohm platinum RTD sensors.
Q2: Which analog slave module is compatible with NIAI03?
A2: The NIAI03 is designed to work with the IMASM03 analog slave module.
Q3: How many RTD channels are supported per module?
A3: Each NIAI03 module supports 8 individual RTD input channels.
Q4: Is this module suitable for high-temperature environments?
A4: It operates reliably in temperatures from 0°C to 70°C.
Q5: Can it be used in redundant system setups?
A5: Yes, it is compatible with redundant configurations using IMAMM03 and IMASM03.
Q6: What wiring standard is required?
A6: The module uses 3-wire RTD configuration to minimize lead resistance error.
Q7: Is there internal cold-junction compensation?
A7: Compensation is managed by the IMASM03 module, not within NIAI03 itself.
Q8: Does NIAI03 require external power?
A8: No, it is a passive termination interface and receives signals from RTDs.
Q9: What diagnostics are available?
A9: Diagnostics are provided through the IMASM03 module’s front panel indicators.
Q10: Can NIAI03 be hot-swapped during operation?
A10: No, the system should be powered down before replacing the module.
Related Models (Same Series)
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| NIAI02 | RTD Analog Input Termination Module | 120 x 150 x 50 | 0.5 kg |
| NIAI04 | RTD Analog Input Termination Module (Alt.) | 120 x 150 x 50 | 0.5 kg |
| NIAM02 | Analog Master Termination Module | 120 x 150 x 50 | 0.5 kg |
| NIAC02 | Analog Calibration Termination Module | 120 x 150 x 50 | 0.5 kg |
| NTTA01 | Thermocouple Termination Unit | 120 x 150 x 50 | 0.5 kg |
| NTAI04 | High-Level Analog Input Termination Unit | 120 x 150 x 50 | 0.5 kg |
Popular ABB Models (Same Brand)
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| IMAMM03 | Analog Master Module | 120 x 150 x 50 | 0.6 kg |
| IMASM03 | RTD Analog Slave Module | 120 x 150 x 50 | 0.5 kg |
| NTAI03 | Analog Input Termination Unit | 120 x 150 x 50 | 0.5 kg |
| INICT13A | Network Interface Module | 120 x 150 x 50 | 0.6 kg |
| INNIS21 | INFI-NET to INFI 90 Interface | 120 x 150 x 50 | 0.6 kg |
| INNPM22 | Network Processing Module | 120 x 150 x 50 | 0.6 kg |
