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- Bently Nevada
- TACH100-01 174652-01
- Digital Tachometer
- USA
- 149.1 × 76.2 × 139.7 mm
- 1.13 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Bently Nevada TACH100-01 174652-01 is a digital tachometer used to measure and monitor the rotational speed of rotating machinery. It provides a dedicated speed-measurement function for applications where shaft RPM is required for machine operation, condition monitoring, testing, or maintenance.
The tachometer can be used with rotating equipment such as turbines, compressors, pumps, motors, generators, and other machinery where accurate rotational-speed information is required. Speed measurements can be used to confirm operating conditions, evaluate changes during startup or shutdown, and support diagnostic work.
In a machinery monitoring arrangement, rotational speed is also useful as a reference parameter for interpreting vibration and other dynamic measurements. Comparing vibration behavior against shaft speed can help maintenance personnel distinguish operating-condition changes from mechanical problems.
The TACH100-01 174652-01 therefore fits into the speed-monitoring layer of a rotating machinery system, working with an appropriate speed-sensing source and associated monitoring or control equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | TACH100-01 174652-01 |
| Product Family | TACH100 Series |
| Product Type | Digital Tachometer |
| Primary Function | Rotational speed measurement and monitoring |
| System Role | Machinery speed monitoring instrument |
| Application | Rotating machinery speed measurement and condition monitoring |
| Dimensions | 149.1 × 76.2 × 139.7 mm |
| Weight | 1.13 kg |
Product Features
- Digital measurement of rotating machinery speed.
- Suitable for shaft RPM monitoring applications.
- Provides speed information for rotating equipment operation and maintenance.
- Useful during machinery startup, normal operation, and shutdown.
- Can provide speed reference information for vibration analysis.
- Suitable for turbines, compressors, pumps, motors, generators, and other rotating equipment.
- Can be incorporated into machinery monitoring and diagnostic arrangements.
- Useful for field testing, commissioning, and maintenance activities.
Working Principle
The TACH100-01 receives a rotational-speed signal generated by an appropriate sensing arrangement associated with the monitored shaft. The incoming speed information is processed by the tachometer and converted into a digital representation of shaft rotational speed.
During operation, the measured speed can be used to determine whether the machine is operating within the expected speed range. Changes in rotational speed can also provide an important reference when evaluating vibration or other dynamic machine measurements.
For rotating machinery diagnostics, speed information is often considered together with vibration data. A change in vibration that occurs only at a particular operating speed may indicate a different mechanical behavior from a vibration increase that occurs across the normal operating range.
Rotating Shaft → Speed Sensing Device → TACH100-01 → Digital Speed Information → Monitoring / Control System
The tachometer is therefore part of the measurement chain rather than the mechanical control element itself. Any speed-dependent alarm or protective action is determined by the connected monitoring or control architecture.
Role in a Rotating Machinery Speed Monitoring Architecture
The TACH100-01 174652-01 occupies the speed measurement and indication layer of the machinery monitoring system. It converts information associated with shaft rotation into usable speed data for operators, maintenance personnel, or connected monitoring equipment.
Rotating Machine → Speed Sensor → TACH100-01 → Speed Information → Monitoring / Control → Alarm / Protection
| System Element | Function |
|---|---|
| Rotating Shaft | Provides the mechanical rotation being measured |
| Speed Sensor | Detects shaft rotation or speed-related pulses |
| TACH100-01 | Processes and displays or provides digital speed information |
| Monitoring System | Evaluates speed together with other machine parameters |
| Control System | Uses speed information for configured machine functions |
| Alarm / Protection | Responds to abnormal speed conditions when configured |
Speed information can also be used as a reference for vibration monitoring and other rotating-machine diagnostic measurements.
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Monitoring shaft speed during operation and testing |
| Gas Turbines | Speed reference for machinery monitoring |
| Compressors | Rotational-speed measurement and operating-condition checks |
| Pumps | Verification of shaft operating speed |
| Generators | Monitoring rotor speed during operation |
| Electric Motors | Speed measurement for maintenance and commissioning |
| Rotating Machinery | General RPM measurement and machine diagnostics |
| Machinery Testing | Speed verification during commissioning and troubleshooting |
| Vibration Diagnostics | Speed reference for interpreting vibration behavior |
| Predictive Maintenance | Comparison of speed and condition-monitoring measurements |
Installation and Maintenance
- Verify the TACH100-01 model and installation arrangement before connecting the unit.
- Confirm that the selected speed-sensing source is appropriate for the intended measurement system.
- Inspect the tachometer terminals, connectors, and associated wiring before commissioning.
- Install or position the speed-sensing device according to the machine’s measurement arrangement.
- Check the sensing path for secure mechanical installation and correct alignment where applicable.
- Keep signal wiring away from sources of excessive electrical interference where practical.
- Confirm that the speed signal is being received correctly before starting the machine.
- Compare the indicated speed with the expected machine operating speed during commissioning.
- Check the speed indication during startup and shutdown to identify abnormal or missing speed signals.
- Investigate sudden speed-reading changes by checking the sensor, wiring, signal path, and tachometer input.
- Inspect connections and the sensing arrangement during scheduled machinery maintenance.
- After replacement or maintenance, verify speed measurement across the relevant operating range before returning the equipment to normal service.
Compatible System Components
| Component | Function |
|---|---|
| Bently Nevada Speed Sensors | Detect shaft rotation and generate speed-related signals |
| Magnetic Pickup Sensors | Provide rotational pulse signals where applicable |
| Keyphasor / Speed Sensors | Provide shaft-speed or phase-reference information |
| Signal Cables | Transfer speed signals from the sensing point |
| Vibration Monitoring System | Combines speed information with machinery vibration data |
| Machinery Protection System | Uses speed and other parameters for configured protection |
| Control System | Uses rotational-speed information for machine control |
| Alarm System | Indicates abnormal speed conditions |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Bently Nevada TACH100 Series | Digital Tachometer | Rotational speed measurement |
| Bently Nevada TACH100-01 | Digital Tachometer | Machinery speed monitoring |
| Bently Nevada 3500 Series | Machinery Protection System | Critical machinery monitoring and protection |
| Bently Nevada 3500/25 | Enhanced Keyphasor Module | Speed and phase reference processing |
| Bently Nevada 3500/50 | Tachometer Module | Rotational speed monitoring |
| Bently Nevada 3300 Series | Machinery Monitoring System | Rotating machinery monitoring |
| Bently Nevada 7200 Series | Proximity Monitoring System | Shaft position and vibration monitoring |
Key Advantages
- Dedicated digital tachometer for rotating machinery speed measurement.
- Provides a useful speed reference for machinery diagnostics.
- Suitable for turbines, compressors, pumps, motors, and generators.
- Supports speed verification during commissioning and maintenance.
- Can complement vibration and machinery protection systems.
- Useful for monitoring machine behavior across changing operating speeds.
Technical FAQs
How is the TACH100-01 useful when diagnosing rotating machinery vibration?
Rotational speed provides an important reference for vibration measurements. Comparing vibration behavior at different shaft speeds can help determine whether a vibration change is associated with operating speed or a developing mechanical condition.
What should be checked if the tachometer shows an incorrect or unstable speed?
The speed-sensing device, signal wiring, connections, input signal, and mechanical sensing arrangement should be checked first. The indicated speed should then be compared with an independent or expected machine-speed reference where available.
Why is accurate speed measurement important during machinery startup and shutdown?
Rotating machinery can pass through different operating conditions as speed changes. Monitoring speed during acceleration and deceleration helps establish when the machine reaches defined operating regions and provides useful information when evaluating abnormal behavior.
Can the TACH100-01 be used as the complete machinery protection system?
The tachometer provides speed measurement, but complete machinery protection normally requires additional monitoring and protection functions. Speed information may be supplied to a broader control or protection architecture where alarms or trips are handled according to the system configuration.