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Foxboro IGP10-A22E1F-M2T I/A Series Intelligent Gauge Pressure Transmitter

The Foxboro IGP10-A22E1F-M2T, also cataloged as the IGP10 Intelligent Gauge Pressure Transmitter, operates as a dedicated hardware component for direct process pressure measurement within Foxboro I/A Series DCS networks. The transmitter executes local sensing and converts fluid pressure into standard analog loop currents and digital HART protocols.

Hardware Specifications

Parameter Specification
Model IGP10-A22E1F-M2T
Brand Foxboro (Schneider Electric)
Origin USA
Weight 1.8 kg
Dimensions Standard gauge transmitter profile
Operating Temp -40 deg C to +85 deg C
Power Consumption Loop-powered via external supply
Supply Voltage 10.5 VDC to 42 VDC
Output Signal 4-20 mA DC analog with HART protocol
Pressure Span Limits 0.7 MPa to 21 MPa (100 psi to 3000 psi)
Process Connection 1/2 NPT external, 1/4 NPT internal
Measurement Accuracy +/-0.1% of calibrated span
Enclosure Rating NEMA 4X / IP66

4-20 mA HART Loop Protocol Integration

The IGP10-A22E1F-M2T integrates directly into existing two-wire instrument loops utilizing the standard 4-20 mA HART loop protocol. The transmitter superimposes digital frequency-shift keying (FSK) signals onto the analog current loop without altering the 4-20 mA measurement signal. This architecture enables continuous real-time primary variable transmission alongside digital asset management data, allowing remote parameter configuration, diagnostic status polling, and dynamic range calibration over the same physical wiring pair.

Frequently Asked Questions

Q: What power supply range is required across the loop terminals?

A: The transmitter operates on a loop power range from 10.5 VDC to 42 VDC across the terminal block. Operating voltage must maintain sufficient compliance to handle total loop resistance, including field wiring and remote HART modem impedance.

Q: How is local push-button configuration performed on the unit?

A: The unit utilizes an optional local LCD module with integrated push buttons behind the display cover. Field technicians can navigate the internal menu to adjust zero and span points without interrupting current loop continuity or requiring an external handheld communicator.

Q: What process connection size is integrated into the sensor body?

A: The standard process interface features a 316L stainless steel connection block cut with a 1/2 NPT external thread and a 1/4 NPT internal thread for direct mounting to impulse piping or manifold systems.

Field Installation Guidelines

Follow these core field installation procedures to ensure long-term signal accuracy and mechanical integrity:

  1. Mount the transmitter securely using the stainless steel bracket kit (M2 option) attached to a standard 2-inch pipe stand or flat surface.
  2. Thread the process connection into the manifold or tap using proper thread sealant, ensuring a minimum of 5 NPT thread engagements to form a pressure-tight seal.
  3. Route field wiring through the 1/2 NPT conduit entries on either side of the housing, forming a drip loop to prevent moisture accumulation near the terminal block.
  4. Ground the overall cable shield at the control system rack end only to prevent ground loops that could distort the 4-20 mA signal.
  5. Seal all unused conduit entries with certified threaded metal plugs to preserve the IP66 / NEMA 4X ingress protection rating.

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