128276-01E Bently Internal Termination I/O Module

Description 128276-01E Bently Internal Termination I/O Module Product Dimensions： Product Description (Detailed Explanation) The 128276-01E is a “Prox/Seismic” I/O module. It is engineered to accept signals from a variety of transducers, primarily Proximitor sensors (for vibration and displacement) and Seismic sensors (such as accelerometers or velocity transducers). Internal Termination: This version features Euro-style terminal blocks mounted directly on the module. This eliminates the need for external terminal blocks and interconnecting cables, simplifying cabinet internal wiring. Four-Channel Support: It is designed to work in conjunction with the 3500/42M main module, providing four independent channels of data acquisition. Hardware Filtering: The I/O module includes onboard circuitry to protect against electromagnetic interference (EMI) and to ensure signal integrity before the data is processed by the main monitor card. Product Parameters (Technical Specifications) Parameter Category Specification Compatibility Bently Nevada 3500/42M Monitor Input Channels 4 Differential or Single-ended Channels Termination Type Internal (Euro-style Screw Terminals) Supported Sensors Proximitor, Accelerometers, Velocity Transducers Signal Range -24 V DC to 24 V DC (typical) Input Impedance 10 kΩ (minimum) Isolation 500 V rms (between field wiring and rack logic) Operating Temp -30 °C to 65 °C (-22 °F to 150 °F) Product Advantages (Key Benefits) Reduced Installation Cost: By utilizing internal terminations, you save on the cost of external hardware, additional DIN-rail space, and the labor required for complex cabling. Compact Footprint: It occupies the standard rear slot behind the 3500/42M module, maintaining the high-density layout of the 3500 rack system. Enhanced Reliability: Fewer connection points (cables and connectors) mean fewer potential points of failure, which is critical for machinery protection systems. High Signal Integrity: Direct termination reduces the risk of noise pickup that often occurs in long cable runs between the rack and external terminal blocks. Precautions (Important Notes) Shielding: Always ensure the sensor cable shields are properly grounded at the I/O module terminals to prevent “ground loops” and signal interference. Wiring Tension: Do not over-tighten the Euro-style terminal screws, as this can damage the internal PCB traces or the terminal block itself. Matching Modules: Ensure the I/O module part number matches the requirements of the front-facing monitor module. Using the wrong I/O module (e.g., an external termination I/O with an internal termination setup) will cause the system to fault. Hot-Swapping: While the 3500 system allows for some hot-swapping, removing an I/O module while the machine is running will result in the loss of all four monitoring channels and potentially trigger a machine trip if interlocks are active. Product Applications (Typical Use Cases) The 128276-01E is used in critical machinery monitoring scenarios including: Radial Vibration: Monitoring the side-to-side movement of shafts in centrifugal compressors and steam turbines. Axial Position: Measuring the thrust position of rotors to prevent catastrophic contact between rotating and stationary parts. Casing Vibration: Connecting to accelerometers on pumps or gearboxes to detect high-frequency mechanical faults. Balance of Plant (BOP): Monitoring auxiliary rotating equipment like cooling fans and lubrication pumps in power plants and refineries. Shipping Port: Xiamen, China Payment: Bank of Chicago, Bank of Singapore Express cooperation: fedex, DHL, UPS and your express account Service: Professional Sales provides 24 hours /7 days online service Please make an inquiry for more models： Bently 125720-01 BENTLY 21000-16-10-00-256-13-02 BENTLY 128229-01 BENTLY 3300/16 BENTLY 172323-01/172362-01 BENTLY 3300/20 BENTLY 19047-01 BENTLY 3300/36 BENTLY 3300/55-04-04-18-18-00-00-05-01 BENTLY 3300/40 BENTLY 330103-00-04-10-02-00 BENTLY 3300/45 Bently 330103-00-06-10-02-00 BENTLY 3300/47 BENTLY 330104-00-05-10-02-CN BENTLY 3300/48 BENTLY 330104-00-06-10-02-00 BENTLY 3300/55 BENTLY 330106-05-30-10-02-00 BENTLY 3300/61 BENTLY 330130-040-00-00 BENTLY 3300/65 BENTLY 330130-045-00-00 BENTLY 330101-00-48-10-02-05 BENTLY 330180-91-00 BENTLY 330103-00-03-05-02-05 BENTLY 330180-X0-05 BENTLY 330103-00-04-05-02-00 BENTLY 330500-02-00 BENTLY 330103-00-04-10-02-00 BENTLY 33A3BEPM-W4 BENTLY 330103-00-05-10-02-00 BENTLY 33A3BEPM-Z2 BENTLY 330103-00-06-10-02-00 BENTLY 3500/22-01-01-01 BENTLY 330103-00-08-10-02-00 BENTLY 3500/22M BENTLY 330103-00-15-10-02-00 BENTLY 3500/22M BENTLY 330104-00-04-10-02-00 Bently 3500/32 BENTLY 330104-00-06-10-02-00 BENTLY 3500/42M BENTLY 330104-00-08-10-02-00 BENTLY 3500/45-01-00 BENTLY 330104-00-15-10-02-05 BENTLY 3500/53-03-00 BENTLY 330104-00-15-10-02-CN BENTLY 3500/53-03-00 BENTLY 330104-05-10-10-02-CN BENTLY 3500/92 BENTLY 330104-08-16-05-02-05 BENTLY 3500/94 BENTLY 330105-02-12-10-02-00 BENTLY 3503E BENTLY 330105-02-12-10-02-05 BENTLY 369-HI-R-0-0-0-0 BENTLY 330106-05-30-05-02-00 BENTLY 125720-01 BENTLY 330106-05-30-10-02-00 BENTLY 125760-01 BENTLY 330130-040-00-00 BENTLY 125768-01 BENTLY 330130-040-00-CN BENTLY 125800-01 BENTLY 330130-040-01-00 BENTLY 125800-01125768-01 BENTLY 330130-040-01-05 BENTLY 125800-013500/25149369-0 BENTLY 330130-040-02-00 BENTLY 125840-01 BENTLY 330130-045-00-00 BENTLY 128229-01 BENTLY 330130-080-00-00 BENTLY 128229-0195 BENTLY 330130-085-00-05 BENTLY 133323-01 BENTLY 330180-50-00 BENTLY 133396-01 BENTLY 330180-51-00 BENTLY 133442-01 BENTLY 330180-51-05 BENTLY 133442-013500/50 BENTLY 330180-90-00 BENTLY 135473-01 BENTLY 330190-040-01-00 BENTLY 135489-04 BENTLY 330194-13-20-10-00 BENTLY 136188-02 BENTLY 330500-01-04 BENTLY 136703-01 BENTLY 330500-02-00 BENTLY 146031-01 BENTLY 330703-000-060-10-02-00 BENTLY 149992-01 BENTLY 330703-00-80-10-02-00 BENTLY 1X35869 BENTLY 330704-000-060-10-02-00 BENTLY 21000-16-10-00-256-03-02 BENTLY 330709-000-060-10-02-00