dditional Information:
| Features | |
| Number of Inputs | Two, independent, differential inputs |
| Type of Inputs | Inductive, half bridge or full bridge and differential transformers |
| Emerson Sensor Inputs | Part number: PR 9350/xx and K20315/xx |
| Isolation | Galvanically separated from power supply |
| Input Impedance | 200 kΩ |
| Input Voltage Range | 3.6 VDC (protected against over voltage) |
| Measuring Frequency Range | 0 – 100 Hz (-3 dB) |
Description:
The Valve and Case Expansion Monitor is designed for high reliability for the plant’s most critical rotating machinery. This 1-slot monitor is used together with other AMS 6500 monitors to build a complete API 670 machinery protection monitor. Applications include steam, gas, compressors and hydro turbomachinery.
Valve position is a measurement of the main steam inlet valve stem position normally displayed in percent open. The valve position measurement provides the operator with an indication of the current load on the turbine.
Channel 1 can measure static values, such as case expansion, and can also be used for dynamic quantities, such as displacement, angles, forces, torsions or other physical quantities measured by inductive transducers. Channel 2 is left for static measurements and relative displacements (relative to channel 1).
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