Product Details
Configured for direct dynamic vibration measurement in extreme-temperature turbomachinery environments, the Bently Nevada 74712-01-02-02-00 (74712 High-Temperature Two-Wire Transducer) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
| Option Field | Code | Configuration Detail |
|---|---|---|
| Mounting Angle / Min Freq | 01 | 0 +/-2.5 deg mounting orientation, 4.5 Hz (270 cpm) minimum operating frequency |
| Mounting Base | 02 | Standard mounting base threaded stud option |
| Connector | 02 | Top-mount integral 2-pin connector interface |
| Agency Approval | 00 | No hazardous area approvals required |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 74712-01-02-02-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.48 kg |
| Dimensions | 41 mm (1.6 in) diameter x 102 mm (4 in) height |
| Operating Temp | -29 deg C to +204 deg C (-20 deg F to +400 deg F) |
| Power Consumption | Loop-powered via 2-wire dynamic vibration transmitter circuit |
| Frequency Response | Minimum operating frequency down to 4.5 Hz (270 cpm) |
| Orientation | Vertical mounting (0 +/-2.5 deg) |
| Interface Connector | Top-mount 2-pin connector |
Rotor Dynamics Analysis and Cross-Talk Suppression
The 74712 transducer integrates moving-coil velocity sensing architecture tailored for high-temperature machine casings where standard solid-state electronics fail. Internal damping and mechanical tuning ensure linear velocity output down to 4.5 Hz, delivering accurate signal tracking for low-speed shaft unbalance and overall rotor dynamics monitoring. High internal signal-to-noise ratios enable clean differential transmission over long 2-wire field cabling runs, preserving signal integrity and maintaining robust cross-talk suppression between adjacent radial and axial measurement channels.
Frequently Asked Questions
Q: How does the 01 option code restrict physical orientation during mounting?
A: Option 01 configures the internal spring suspension for vertical installation, requiring the transducer axis to remain within 0 +/-2.5 deg of vertical to operate at its 4.5 Hz minimum frequency specification.
Q: What thermal limits must be observed during high-temperature field operation?
A: The transducer housing withstands continuous ambient operating and storage temperatures ranging from -29 deg C to +204 deg C without thermal degradation.
Field Installation Guidelines
- Inspect the mounting surface to ensure a clean, flat face free of metal burrs or paint build-up.
- Torque the transducer mounting stud to standard engineering specifications to prevent mechanical resonance shifts.
- Verify that the transducer vertical axis remains within +/-2.5 deg of true vertical alignment.
- Connect the top-mount 2-pin cable connector, ensuring the locking ring is securely engaged against operational vibration.
- Route high-temperature shielded cable through dedicated protective flexible conduit, grounding the shield at the monitoring panel end only.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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