Description
## Product Overview
The Honeywell MC-PHAI01 51403479-150 is a high-density analog input module for Honeywell’s Experion PKS control systems, designed for precision measurement of process variables in critical industrial applications. This 16-channel module supports multiple signal types (4–20 mA, 0–10 V, thermocouples, RTDs) with ±0.05% accuracy and 24-bit resolution, enabling real-time monitoring of temperature, pressure, and flow in SIL 2-certified (IEC 61508) safety systems. The MC-PHAI01 51403479-150 features triple galvanic isolation (1500 V channel-to-channel/channel-to-ground) and HART 7.2 digital communication for simultaneous analog signal acquisition and device diagnostics. Engineered for harsh environments (-40°C to +70°C), its conformal-coated PCB resists corrosive atmospheres, while predictive diagnostics monitor component health to prevent unplanned downtime in refineries, power plants, and pharmaceutical facilities.
## Technical Specifications
| Parameter | Value |
|---|---|
| Model | MC-PHAI01 51403479-150 |
| Manufacturer | Honeywell |
| Type | Analog Input Module |
| Channels | 16 (individually isolated) |
| Signal Types | 4–20 mA, 0–10 V, TC (J/K/T/E), RTD (Pt100/Ni120) |
| Accuracy | ±0.05% FS @ 25°C |
| Resolution | 24-bit ADC |
| Scan Rate | 50 ms/channel (all channels in 800 ms) |
| HART Support | Yes (multidrop, 4 devices/channel) |
| Isolation | 1500 V AC (channel-to-ground) |
| CMRR | >120 dB @ 50/60 Hz |
| Input Impedance | 250 Ω (current), 1 MΩ (voltage) |
| Power Consumption | 1.2 W @ 5 V DC |
| Operating Temp. | -40°C to +70°C |
| Certifications | SIL 2 (IEC 61508), ATEX II 3G |
| Connections | Removable screw terminals |
| Dimensions | 135 × 110 × 40 mm |
## Key Features & Advantages
Precision Measurement:
24-bit delta-sigma ADCs with auto-calibration and temperature compensation maintain ±0.05% accuracy across -40°C to +70°C. Advanced noise rejection (100 dB @ 50 Hz) ensures stable readings in high-EMI environments like motor control centers.
Integrated Diagnostics:
- HART-enabled channel diagnostics detect sensor drift (e.g., Rosemount 3051S transmitters) without interrupting the 4–20 mA signal.
- Real-time monitoring of lead resistance (RTDs) and thermocouple degradation.
- LED per channel: Green (normal), Amber (warning), Red (fault).
Safety & Reliability:
- SIL 2 hardware architecture with redundant validation circuits for critical applications.
- Open-wire detection for thermocouples/RTDs (<1 ms response).
- Surge protection (4 kV) per IEC 61000-4-5.
Operational Efficiency:
- Hot-swappable design reduces MTTR to <2 minutes.
- Electronic Marshalling allows signal reassignment without rewiring.
- Data logs support FDA 21 CFR Part 11 compliance for pharma.
## Application Areas
Oil & Gas:
Monitoring wellhead pressure/temperature in offshore platforms with HART-enabled Emerson Rosemount sensors. SIL 2 safety loops for flare system control.
Power Generation:
High-accuracy RTD measurements (±0.1°C) for turbine bearing temperature protection in combined-cycle plants.
Pharmaceutical:
Batch reactor temperature control with NIST-traceable calibration records for FDA audits.
Water Treatment:
pH/ORP monitoring in chemical dosing systems using corrosion-resistant Yokogawa ISC202G electrodes.
## Related Products
- MC-PHAO01 – Analog Output Module (8 channels, 4–20 mA)
- MC-PDIX01 – Digital Input Module (32 channels)
- 51403476-175 – C300 Controller (required)
- CC-PDIL01 – PROFIBUS DP Interface
- MC-TAOX01 – Thermocouple Input Module (16 ch)
- HPS-ENET-2 – Industrial Ethernet Switch
- CC-PAIM01 – RTD Input Module (16 ch)
- PS-24VDC-R – Redundant Power Supply
- HART-475 – Handheld Communicator
- Experion HS – High-Server for data historization
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