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epro PR6425/010-130 — Eddy-Current (Overspeed) Probe
The PR6425 is an eddy-current probe series from epro GmbH (Germany), part of epro’s PR… probe family used with
the MMS machinery protection systems. It is a different series from the PR6423
probes that dominate this list — PR6425 is commonly associated with epro’s overspeed
/ keyphasor / speed-detection applications (measuring pulses or a reference mark
rather than continuous shaft displacement). The string PR6425/010-130 is a
configurable variant, where /010 denotes the probe option and -130
a cable-length / connector option. Manufactured by epro (an Emerson company). Typically used
as a genuine spare for existing epro installations.
- epro PR6425 eddy-current probe series
- Distinct series from PR6423
- Associated with overspeed / speed / reference detection
- Configuration /010-130
- Machinery protection / condition-monitoring spare
Key Features & Functions
Eddy-Current Detection
Non-contact sensing using eddy-current principles, suited to detecting a target, key mark or feature for speed / reference measurement.
Speed / Overspeed Role
The PR6425 series is commonly used in overspeed and speed-reference functions on rotating machinery — distinct from the PR6423 displacement-probe role.
Probe System Integration
Works as part of the epro MMS measurement system, feeding signals to the associated monitor cards.
Configurable Variants
Option codes specify probe length and connector choices, allowing matching to a given installation.
Technical Specifications
| Model Number | PR6425/010-130 |
|---|---|
| Brand | epro GmbH (Germany) |
| Series | PR6425 probe series |
| Item Type | Eddy-current probe (speed / overspeed / reference) |
| System Compatibility | epro MMS machinery protection systems |
| Option Code 010 | Probe option (confirm) |
| Option Code 130 | Cable-length / connector option (confirm) |
Source note: PR6425 is an epro eddy-current probe series distinct from
PR6423, commonly associated with speed / overspeed / reference detection. The exact
electrical characteristics, target, and the meaning of the /010-130 option
codes were not individually confirmed from an official datasheet and must
be verified before ordering or replacing.
Typical Application Scenarios
- Overspeed Protection: speed/reference signal for overspeed trip systems.
- Speed Measurement: shaft speed and reference (keyphasor-type) detection.
- Steam & Gas Turbines: speed monitoring on turbine trains.
- Compressor & Pump Systems: rotational speed detection.
- Spare Part Replacement: replacing probes in existing epro installations.
Frequently Asked Questions
What is the epro PR6425/010-130?
It is an epro PR6425 eddy-current probe — configuration /010-130 — part of the epro probe family used with MMS machinery protection systems.
Is PR6425 the same as PR6423?
No — they are different probe series. PR6423 is used for shaft displacement/vibration; PR6425 is commonly associated with speed / overspeed / reference detection. Confirm the exact role in the epro datasheet.
What does it connect to?
It is part of the epro MMS measurement system and works with the associated monitor cards. Confirm exact probe/card matching in the epro datasheet.
Are the option codes important?
Yes — /010-130 specifies probe and cable/connector options, and correct
matching is essential. Verify before ordering.
Where can I find the official datasheet?
Official technical documentation is available from epro and authorized distributors. Verify all specifications there before purchase.
