The IPC707 Signal Conditioner is the latest generation of signal conditioning equipment developed by Meggitt (now Parker Meggitt) for vibration and dynamic pressure monitoring applications. Designed as the direct successor to the IPC704, the IPC707 introduces enhanced diagnostic capabilities, improved filtering performance, and better immunity to electrical interference while maintaining compatibility with existing sensor installations.
If your machinery protection system currently uses the IPC704, understanding the differences between these two models can help you determine whether an upgrade is worthwhile.
Both the IPC704 and IPC707 are charge signal conditioners designed to interface with Vibro-Meter piezoelectric accelerometers and dynamic pressure sensors. Their primary function is to convert charge signals generated by sensors into standard voltage or current outputs that can be processed by monitoring systems, PLCs, or DCS platforms.
Typical applications include:
Gas turbines
Steam turbines
Compressors
Generators
Pumps
Fans
Industrial rotating machinery
The IPC707 was developed as a fully backward-compatible replacement, allowing users to upgrade without replacing existing CA series accelerometers or CP series pressure sensors.
IPC707 vs IPC704 Comparison:
| Feature | IPC704 | IPC707 |
|---|---|---|
| Product Status | Previous generation | Current replacement model |
| Compatibility | Supports CA & CP sensors | Fully compatible with IPC704 installations |
| Sensor Input | Charge signal | Charge signal |
| Output | Voltage / Current | Voltage / Current |
| Built-in Diagnostics | No | Optional BITE diagnostics |
| Functional Safety | Not available | IEC 61508 SIL 2 capable |
| Filter Design | Standard filtering | Improved filtering compliant with ISO 2954 |
| EMI Immunity | Standard | Enhanced grounding and EMI protection |
| Output Impedance | Higher | Lower output impedance for long cable runs |
| Installation | Screw mounting | Screw or DIN rail mounting |
| Terminal Blocks | Fixed | Removable terminal blocks |
| Maintenance | Standard | Easier installation and servicing |
Should You Upgrade from IPC704?
For existing systems operating normally, the IPC704 continues to provide reliable signal conditioning. However, when equipment modernization, maintenance, or system expansion is planned, upgrading to the IPC707 offers several practical advantages:
Improved reliability
Easier maintenance
Better noise immunity
Integrated diagnostics
Compliance with modern functional safety standards
Continued compatibility with installed sensors
Because no major modifications to existing sensor installations are typically required, upgrading can often be completed with minimal disruption.