Product Introduction: 3500/94 145988-01 + 147663-01
The 3500/94 145988-01 and 147663-01 together form an Analog Monitor / tachometer Module and a dedicated Signal Conditioner or Termination Panel for the Bently Nevada 3500 Machinery Protection System. The 3500/94 is a highly versatile monitoring module designed to accept a wide range of analog signals, including speed (from magnetic pickups or accelerometers), process values (4-20 mA), and other dynamic AC or DC signals. The 147663-01 is an ancillary component, typically a signal conditioner or specialized termination panel, that prepares the raw field signal for accurate and reliable interpretation by the module.
This system is used for comprehensive monitoring of various machine parameters beyond core vibration, integrating speed and process data directly into the protection framework.
Technical Parameters
The table below outlines the key parameters for the module and the associated component.
| Parameter Category | Specification |
|---|---|
| Part Number Set | 3500/94 145988-01 (Module) + 147663-01 (Signal Conditioner/Termination) |
| Module Function | Analog Monitor / Tachometer |
| Input Channels | 4 or 6 channels (configurable per channel) |
| Input Signal Types | • Magnetic Pickup (MPU) for speed • 4-20 mA (process signals) • AC Voltage (vibration from accelerometers) • DC Voltage (position, etc.) |
| Auxiliary Unit (147663-01) | Signal Conditioner / Termination Panel for MPU or other sensor interfacing. |
| Frequency Response | Programmable, suitable for both low-frequency speed and higher-frequency vibration signals. |
| Module Dimensions (H x W x D) | Approx. 190 mm x 60 mm x 140 mm (7.5 in x 2.4 in x 5.5 in) [Standard 3500 rack slot] |
| Module Weight | Approx. 0.8 kg (1.8 lbs) |
| Auxiliary Unit Dimensions & Weight | Varies; a termination panel may be similar in size to the module; a signal conditioner could be a smaller standalone unit. |
| Mounting | Module slots into a 3500 series rack. Auxiliary unit mounts on the rack frame or in the cabinet. |
| Operating Temperature (Module) | 0°C to +65°C (+32°F to +149°F) |
| Key Features | • Highly versatile and configurable input types • Provides RPM measurement and overspeed protection • OK, Alert, and Danger alarms per channel • Auxiliary unit ensures signal integrity and proper interfacing. |
*Note: The dimensions and weight for the module are standard. The auxiliary unit's physical specs are design-specific. The 147663-01 is configured to work with the 3500/94 module for specific sensor types.*
Application Scenarios
The 3500/94 Analog Monitor system is used for a broad range of monitoring applications, particularly where speed and auxiliary process values are critical.
Overspeed Protection: Using a magnetic pickup (MPU) to monitor shaft speed and provide a critical shutdown signal to prevent catastrophic overspeed events on turbines and turbo-expanders.
Auxiliary Vibration Monitoring: Accepting signals from accelerometers to monitor casing or structure vibration on pumps, fans, and gearboxes.
Process Integration: Bringing 4-20 mA signals from pressure, temperature, or flow transmitters into the protection system for alarm and shutdown functions.
Multi-Parameter Machinery Monitoring: Serving as a flexible platform to monitor various parameters on a single machine, such as speed, discharge pressure, and bearing temperature, all within one module.
Tachometer and Phase Reference: Providing a speed and Keyphasor® reference for other monitoring modules and external systems.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
