Description
This case-mounted seismic transducer utilizes internal processing electronics to measure machinery vibration velocity, outputting a proportional differential voltage.
Commercial and Supply Chain Status
- Condition: New Original (Factory Sealed) or Refurbished (Tested and Calibrated)
- Warranty: 12-Month Comprehensive Industrial Warranty
- Availability: In Stock / Global Logistics Support
- Lead Time: Ships within 1 to 3 business days from order confirmation
- Pricing: Price scales with global supply levels and local distributor allocations; contact us for a firm quote.
Part Number Breakdown
The unique configuration code 200151-60-03-10 maps to the following mechanical and hardware variables:
- 200151: Base model designation for the Trendmaster Velocity-to-Velocity Seismic Transducer.
- 60: Mounting Option: Standard 1/4-28 UNF integral mounting stud configuration.
- 03: Cabling Interface Suffix: Equipped with a top-exit, heavy-duty 4-pin or 5-pin industrial connector array.
- 10: Agency Approvals: Multi-region certified hazardous area option package (includes ATEX, IECEx, and CSA intrinsic safety approvals for Class I, Division 1 zones).
Technical Specifications
| Parameter | Value |
| Sensing Principle | Piezoelectric internal core with integrating electronics |
| Nominal Sensitivity | 3.94 mV/(mm/s) [100 mV/in/s] \pm10\% at 80 Hz |
| Frequency Response | 10 Hz to 1,000 Hz (600 to 60,000 cpm) \pm10\% |
| Dynamic Range | \pm508\ mm/s (\pm20\ in/s peak velocity limits) |
| Excitation Voltage | 4.7 V DC to 5.5 V DC (Provided via the Trendmaster bus) |
| Quiescent Current | < 800\ \muA low-power profile |
| Output Bias Voltage | +2.5 V DC nominal baseline |
| Housing Construction | 316L Stainless Steel (Hermetically sealed enclosure) |
| Operating Temperature | −40 to +105 °C (−40 to +221 °F) |
Architecture and Trendmaster System Application
The 200151 transducer is purpose-built to operate within low-power, high-density asset monitoring networks rather than traditional continuous machinery protection racks.
Velocity Integration Processing
- Unlike standard moving-coil velocity pick-ups that rely on physical internal magnets suspended by delicate springs, the 200151 utilizes a solid-state piezoelectric ceramic element.
- The internal micro-circuitry captures raw acceleration forces, passes them through a precise hardware integration stage, and scales the final analog signal to a velocity standard (100 mV/in/s). This solid-state design eliminates mechanical wear components, improving longevity under extreme ambient vibration conditions.
Multi-Drop Bus Topology
- The 200151 maps directly into the Bently Nevada Trendmaster Pro architecture via local Transducer Interface Modules (proTIMs).
- Dozens of these velocity sensors share a single digital field network trunk line that updates System 1 Asset Management software. This makes it an ideal configuration for balance-of-plant (BOP) machinery like industrial fans, general pumps, heat-exchanger blowers, and small electric motors.
Engineering Insights: Installation and Mechanical Calibration
Torque and Mating Specifications
⚠️ CRITICAL MECHANICAL INSTALLATION NOTE: Accurate high-frequency vibration transmission requires rigid mechanical coupling between the transducer face and the machine surface. The installation site must be face-milled flat, clean, and properly tapped. Torque the 200151-60-03-10 sensor using its hex base to a specification of 2.7 to 6.8 N·m (2 to 5 ft·lbf). Under-torquing leads to high-frequency attenuation, while over-torquing deforms the lower mounting boundary, straining the internal crystal and causing bias voltage errors.
Pin Protection and Environmental Sealing
The top-mounted electrical connector is highly sensitive to moisture ingress or chemical contamination from cutting fluids and splash water.
- When executing field installation, apply an anti-seize compound explicitly approved for electronics to the threads of the connector barrel.
- Seal the cable interface using an integrated molded rubber boot or wrap the junction point with industrial self-fusing silicone weatherproofing tape blocks.
Frequently Asked Questions
Q: Can this sensor be connected directly to a standard 3500/42M monitor card? A: No. The 200151 sensor is engineered to operate on a low-voltage, low-current system loop configuration (+5 V DC excitation) intended for Trendmaster monitoring channels. Standard 3500 series vibration inputs typically deliver continuous −24 V DC power profiles designed for Proximitor loops or standard accelerometers, which will damage this sensor’s internal integration circuit if cross-wired.
Q: What is indicated if a channel reports an output bias voltage of 0.0 V DC? A: A zero-volt reading indicates an active short-circuit condition inside the field cabling run or an internal component failure within the sensor’s processing core. Disconnect the sensor from the proTIM node and check the cable continuity across the signal pins to isolate the fault.
Q: Why choose the 200151 velocity sensor over a standard 200150 accelerometer? A: Velocity measurements are preferred for general rotating machinery operating between 10 Hz and 1,000 Hz because velocity aligns directly with destructive mechanical energy levels. Measuring in velocity provides a more balanced tracking perspective across this specific frequency envelope without requiring secondary math conversions in the host HMI platform.
