Foxboro IGP10-A22D1F Pressure Transmitter

The Foxboro IGP10-A22D1F, also cataloged as the IGP10 Pressure Transmitter, operates as a dedicated hardware component for gauge pressure measurement and signal conversion within Foxboro I/A Series system loops. It measures process fluid pressures up to 300 psi and outputs a 2-wire 4-20 mA analog signal proportional to the calibrated span.

Hardware Specifications

4-20 mA Loop Architecture and Channel-to-Channel Isolation

The Foxboro IGP10-A22D1F transmits process variable measurements over a standard 2-wire 4-20 mA current loop to host I/A Series Fieldbus Modules (FBM). Internal piezoresistive sensing circuitry utilizes channel-to-channel isolation and integrated signal conditioning to mitigate common-mode noise across industrial field loops. The transmitter circuitry maintains stable analog signal response under fluctuating supply voltages (12.5 to 42 VDC), ensuring zero-drift voltage regulation across DCS interface channels.

Frequently Asked Questions

Q: What power source voltage range is required to operate the IGP10-A22D1F transmitter?

A: The transmitter operates on a 2-wire loop supply voltage ranging from 12.5 VDC to 42 VDC connected across its terminal block.

Q: How is the 4-20 mA loop protected against electrical ground loops during installation?

A: The transmitter electronics housing maintains internal isolation between signal terminals and the metallic enclosure; cable shields should be grounded at the DCS panel end only.

Q: What is the maximum working pressure rating for the IGP10-A22D1F gauge sensor?

A: The sensor element supports continuous operation across a calibrated range of 0 to 25 psi with a maximum working pressure rating up to 300 psi.

Field Installation Guidelines

• Thread the pressure transmitter directly into the process piping or manifold using standard NPT pipe thread engagement procedures.
• Route the 2-wire signal cable through grounded metal conduit, keeping signal lines isolated from high-voltage AC cabling.
• Verify that external DC loop supply voltage at the transmitter terminals does not drop below 12.5 VDC under a full 20 mA output condition.
• Terminate the cable shield drain wire directly to the instrument earth bar in the control cabinet to prevent EMI interference.