Overview
It connects RTD sensors directly to analog input modules, therefore ensuring accurate and stable temperature measurements.
Moreover, the NTAI04 protects low-level RTD signals from electrical interference commonly found in industrial environments.
Control engineers depend on this termination unit when precise temperature feedback supports safe and efficient process operation.
Specification
| Parameter | Specification |
|---|---|
| Manufacturer | ABB (Bailey Controls) |
| Product Model | NTAI04 |
| Product Type | RTD Analog Input Termination Unit |
| Compatible Systems | ABB Bailey Infi 90, Net 90 |
| Primary Function | RTD signal termination |
| Supported Sensors | Industrial RTD sensors (Pt100 and compatible types via AI module) |
| Wiring Configuration | 2-wire, 3-wire, or 4-wire RTD support |
| Number of Channels | Supports multiple RTD input channels |
| Connection Method | Screw-type terminal blocks |
| Signal Conditioning | Performed by associated analog input module |
| Electrical Isolation | Designed for low-level analog signal protection |
| Power Requirement | Passive device, no external power required |
| Mounting Location | Control cabinet or termination panel |
| Mounting Style | Standard Bailey termination mounting |
| Operating Temperature Range | 0 °C to +60 °C (32 °F to 140 °F) |
| Storage Temperature Range | −40 °C to +85 °C (−40 °F to 185 °F) |
| Relative Humidity | 5% to 95%, non-condensing |
| Mechanical Design | Industrial-grade construction for continuous service |
| Typical Weight | Approximately 0.9 kg (2.0 lbs) |
FAQ
A1: The NTAI04 provides secure termination for RTD temperature sensor signals in Infi 90 systems.
Q2: Does the NTAI04 convert RTD signals into temperature values?
A2: No, signal conversion occurs within the connected analog input module.
Q3: Which RTD wiring configurations does the NTAI04 support?
A3: It supports 2-wire, 3-wire, and 4-wire RTD configurations.
Q4: Does the NTAI04 require external power?
A4: No, the unit operates passively and requires no power supply.
Q5: Is the NTAI04 suitable for harsh industrial environments?
A5: Yes, ABB designed it for reliable operation in demanding control room conditions.
Q6: How does the NTAI04 help reduce maintenance time?
A6: Organized terminals and clear labeling simplify diagnostics and wiring verification.
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