Introduction to the TACH100 Digital Tachometer
When you need accurate speed indication at the machine, the TACH100 from Bently Nevada provides a dependable solution. This standalone digital tachometer is designed for use as a remote speed indicator or as a primary display when no permanent monitoring system is installed. Its compact, self-contained design includes an internal power supply that can power a Proximitor sensor, making it a versatile choice for industrial environments.
Because the TACH100 accepts signals from any Bently Nevada Proximitor sensor, it integrates easily with existing setups. It also accepts signal and common wires from an externally-powered Keyphasor probe, allowing parallel connection to a monitor rack or directly to the probe. This flexibility simplifies installation in control rooms or at the machine itself.
Key Features and Technical Specifications
The TACH100 offers several features that enhance its usability and reliability. Its automatic threshold adjustment simplifies setup, while field-adjustable hysteresis (0.2 Vdc to 2.5 Vdc) lets you fine-tune performance. Events per turn can be set from 1 to 99, accommodating various rotor configurations.
- Supply voltage: 110-230 Vac, 50-60 Hz
- Proximitor power: -24 Vdc at 20 mA maximum
- Measurement range: 1 to 999,999 rpm
- Measurement resolution: 1 rpm
- Measurement accuracy: within 0.015% of input speed
- Display: 6-digit LED, 13.2 mm digit height
- Operating temperature: 0°C to +60°C
- Storage temperature: -40°C to +85°C
- Relative humidity: 95% max, noncondensing
- Dimensions: 76.2 mm H x 139.7 mm W x 149.1 mm D
- Weight: 1.13 kg
One distinctive spec is the display hysteresis: the input signal must change by 0.003% minimum to display a new output value. This prevents flickering and ensures stable readings, which is critical for maintenance engineers who rely on consistent speed data.
Installation and Setup
Installing the TACH100 is straightforward. Connect the signal and common wires from your Proximitor sensor or Keyphasor probe to the appropriate terminals. The internal power supply can power the sensor directly, eliminating the need for an external supply in many cases. For externally-powered probes, wire them in parallel with the Keyphasor input on the monitor rack or directly to the probe.
Set the events per turn and hysteresis values according to your machine's requirements. The automatic threshold adjustment simplifies initial calibration, reducing setup time. Always follow the manufacturer's manual for detailed wiring and configuration instructions.
Maintenance and Reliability
From a maintenance engineer's perspective, the TACH100 is built for reliability. Its solid-state design has no moving parts, reducing wear and tear. The unit operates within a wide temperature range and can handle up to 95% relative humidity, making it suitable for harsh industrial environments.
Periodic inspection is recommended to ensure connections remain secure and the display functions correctly. Because the TACH100 has no user-serviceable internal components, routine checks should focus on external wiring and environmental conditions. If issues arise, refer to the official Bently Nevada documentation for troubleshooting guidance.
Compatibility and Integration
The TACH100 works with any Bently Nevada Proximitor sensor, ensuring broad compatibility across your machinery. It can also interface with externally-powered Keyphasor probes, making it a flexible addition to existing monitoring systems. Whether used as a standalone unit or as a remote indicator for a permanent system, the TACH100 provides consistent speed data.
Troubleshooting Common Issues
If the display shows no reading, check the power supply and connections. Verify that the sensor is properly positioned and that the signal wires are intact. If readings are unstable, adjust the hysteresis or events per turn settings. For persistent problems, consult the Bently Nevada manual or contact AutoDCSTech for support.
Support and Availability
The TACH100 is available through AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering. Our team can provide technical support and answer any questions about integration with your existing systems.
Availability & Condition at AutoDCSTech
| Part Number | TACH100 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
