Overview
The Invensys FBM202 P0926EQ, also cataloged as the P0926EQ Input Module, provides isolated thermocouple and millivolt signal acquisition within the Foxboro I/A Series Distributed Control System. The module performs direct field signal conversion through 8 isolated input channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FBM202 P0926EQ |
| Brand | Invensys |
| Origin | USA |
| Product Type | Input Module |
| System Platform | I/A Series Distributed Control System |
| Input Type | Thermocouple / Millivolt Input |
| Number of Channels | 8 Input Channels |
| Channel Configuration | Channel Isolated |
| Weight | 0.35 kg |
| Dimensions | 4.5 cm x 10.5 cm x 11.5 cm |
| Tariff Code | 8537101190 |
Cold Junction Compensation and Channel Isolation
The FBM202 P0926EQ processes thermocouple and millivolt field signals through isolated input channels. Therefore, each channel maintains electrical separation between field devices and the control system interface.
The module supports temperature measurement applications requiring thermocouple signal conditioning and millivolt-level measurement. Additionally, channel isolation reduces interference caused by field wiring differences and external electrical noise.
The I/A Series architecture uses modular fieldbus communication to transfer processed input data to the control processor. The FBM202 operates as a field interface component within this distributed I/O structure.
Frequently Asked Questions
Q: What input signals does the FBM202 P0926EQ accept?
A: The FBM202 P0926EQ accepts thermocouple and millivolt input signals through 8 isolated input channels.
Q: Does the FBM202 P0926EQ provide channel isolation?
A: Yes. The module design includes channel-isolated inputs to maintain electrical separation between individual field signal paths.
Q: Which control system platform supports the FBM202 P0926EQ?
A: The FBM202 P0926EQ is designed for the Invensys Foxboro I/A Series Distributed Control System platform.
Field Installation Guidelines
Install the FBM202 P0926EQ according to the I/A Series hardware installation requirements. Verify that the mounting position provides proper mechanical support and sufficient clearance for module insertion and removal.
Use shielded field wiring for thermocouple and millivolt signal connections where required by the site grounding standard. Connect cable shields according to the approved control system grounding method to minimize electrical noise.
Separate low-level analog signal cables from high-voltage power wiring and switching circuits. Confirm terminal connections before system startup and verify correct channel configuration within the I/O database.
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