Description
Key Technical Specifications
| Parameter | Value |
| Manufacturer | Epro / Emerson Process Management |
| Part Number | CON041 |
| Compatible Sensors | PR6422, PR6423, PR6424, PR6425, PR6426 Eddy Current Probes |
| Frequency Response (-3 dB) | 0 Hz to 20,000 Hz |
| Rise Time | < 15 µs |
| Supply Voltage Range | -23 V DC to -32 V DC (or -21 V DC to -32 V DC depending on output option) |
| Output Signal Range | -4 V DC to -20 V DC (or -2 V DC to -18 V DC proportional to gap distance) |
| Operating Temperature | -30°C to +100°C (-22°F to +212°F) |
| Protection Rating | IP20 |
| Housing Material | Polyamide PA 6.6 |
| Mounting | 35 mm DIN Rail |
| Weight / Wire Size | ~60 grams (2.12 oz) |
Product Introduction & Supply Chain Strategy
The Epro CON041 Eddy Current Signal Converter drives non-contact eddy current proximity sensors (PR6422 through PR6426 series) to measure shaft vibration, radial/axial displacement, position, and speed in critical rotating machinery such as turbines, compressors, pumps, and heavy industrial fans.
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability. Stocking the CON041 as New Surplus is a critical insurance policy for facilities running legacy MMS 6000 protection systems. Buying refurbished or pulled signal converters poses extreme risks, as micro-degradation of internal oscillator circuitry leads to signal drift and false trips. Securing factory-fresh original surplus units preserves original plant calibration, prevents multi-day unplanned trips, and eliminates the high engineering costs associated with full protection system upgrades.

CON041

CON041
Installation & Configuration Guide
- Stage 1: Pre-Installation (Prep & Safety)
- Isolate power to the monitoring rack (-24 V DC loop power).
- Attach a grounded ESD wrist strap before handling the signal converter.
- Record terminal wiring locations and label all field cabling from the PR642X sensor probe and monitoring system receiver.
- Stage 2: Removal
- Disconnect screw terminal blocks from the existing CON041 converter.
- Disengage the DIN rail locking latch using a small flat-head screwdriver.
- Carefully lift the old module off the 35 mm DIN rail without applying torque to adjacent wiring.
- Stage 3: Installation (Clone & Seat)
- Verify the part number variant match (e.g., standard CON041 vs extended range CON041/91x).
- Snap the new securely onto the 35 mm DIN rail.
- Re-terminate signal leads into the screw terminals according to field wiring schematics (Sensor probe, raw signal, and power return).
- Stage 4: Power-On & Testing
- Apply -24 V DC power supply to the module.
- Measure the DC voltage output at the monitoring terminal using a calibrated digital multimeter to verify baseline gap voltage against known mechanical offset.
- Confirm dynamic signal passthrough on the downstream machinery protection monitor (e.g., MMS 6000 rack).
Firmware/Software Versions & Upgrade Notes
- Hardware Hardware-Analog Architecture: The operates primarily as an analog signal-conditioning driver and frequency oscillator. It does not utilize onboard user-upgradable digital firmware.
- Compatibility Notes: Ensure the converter cable length specification matches the installed PR642X probe system (e.g., total system length options like 5 m, 10 m, or custom extended ranges). Combining a standard converter with an uncalibrated probe cable length creates non-linear output errors across the measuring gap.
- Replacement Warning: Avoid altering sensor extension cable lengths when swapping out a unit. Modernizing to newer signal converters requires complete re-calibration of the probe-cable-converter loop curve.
Frequently Asked Questions (FAQ)
Q: Why is this New Surplus unit priced higher than refurbished options on the market?
A: Our pricing reflects the market cost of securing original, unused Epro inventory. Refurbished modules usually feature aged capacitors and worn terminals disguised by clean plastic housings. A 300 savings on a refurbished signal converter vanishes instantly if an erratic signal causes a false trip on a 2,000,000 steam turbine.
Q: Are these units truly brand new?
A: Yes. They are New Surplus units stored in climate-controlled facilities in original OEM anti-static packaging. Packages are opened solely for quality control testing and visual verification prior to dispatch.
Q: Has the Epro been discontinued by the OEM?
A: Yes, many legacy Epro MMS 6000 components have transitioned to EOL (End of Life) status under Emerson. New Surplus stock provides immediate drop-in replacements without requiring costly panel re-engineering or rack migrations.
Q: Can I hot-swap the module while the turbine is running?
A: No. Disconnecting the signal converter breaks the vibration protection loop, which can trigger an emergency shutdown (ESD) or trip downstream machinery monitoring logic. Always bypass the monitoring channel or de-energize loop power before hardware replacement.
Q: What warranty coverage applies to this unit?
A: Every Epro New Surplus module includes a comprehensive 1-year replacement warranty, matching standard OEM terms.

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