Product Details
The Bently Nevada 136703-01, also cataloged as the 3500/50 I/O Module with Internal Barriers and Internal Termination, operates as a dedicated hardware component for processing tachometer and shaft speed signals within Bently Nevada 3500 Series Machinery Protection Systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 136703-01 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.46 kg |
| Dimensions | 10.31 cm x 2.44 cm x 24.13 cm |
| Operating Temp | -30 deg C to +65 deg C |
| Power Consumption | Powered via 3500 system rack backplane |
| Module Type | Tachometer I/O Module with Internal Barriers and Internal Termination |
| Signal Bandwidth | 30 kHz |
Eddy-Current Probe Scaling and Gap Voltage Validation
The 136703-01 I/O module conditions transducer signals originating from proximity probe systems across a 30 kHz signal bandwidth. Correct speed pulse acquisition and phase reference timing require precise eddy-current probe scaling and physical transducer gap verification. Verifying target gap voltage validation (-10 VDC targets) during baseline setup prevents pulse distortion, mitigating cross-talk suppression degradation across adjacent channel connections in high-density rack backplanes.
Frequently Asked Questions
Q: Does the 136703-01 module require external zener barrier blocks for hazardous area transducer connections?
A: No, the module integrates internal galvanically isolated barriers directly on the board, allowing direct field wiring termination without external barrier hardware.
Q: Can this rear I/O module be hot-swapped while the 3500 rack remains powered?
A: Yes, rear I/O modules in the 3500 system can be removed or inserted under backplane power, provided the associated main front module is temporarily disengaged or set to maintenance mode.
Field Installation Guidelines
- Power down the channel slot or confirm system maintenance overrides before installing the module into the rear slot of the 3500 rack chassis.
- Align the board edges with the top and bottom card guides of the designated slot and slide the module inward until the backplane connectors seat completely.
- Tighten the top and bottom captive screws by hand to secure the faceplate to the rack frame and ensure solid mechanical chassis grounding.
- Wire field transducer leads directly to the internal termination screw blocks, taking care not to bridge adjacent intrinsically safe terminals.
- Connect cable shields to the dedicated rack ground bus bar to prevent high-frequency electro-magnetic interference from corrupting speed pulse edge detection.
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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