TACH100 Bently Nevada Standalone Digital Tachometer Speed Indicator

Product Overview

• The TACH100 is a standalone digital tachometer for precise speed indication.
• It is a Bently Nevada industrial-grade solution for local or remote monitoring.
• This TACH100 unit features a bright 6-digit LED display for 1 to 999,999 RPM.
• Includes an internal power supply capable of providing -24 Vdc to a Proximitor sensor.
• The TACH100 supports field-adjustable events-per-turn from 1 to 99.

Technical Specifications

• Brand: Bently Nevada / Baker Hughes
• Model: TACH100
• Display Range: 1 to 999,999 RPM (1 RPM resolution)
• Accuracy: 0.015% of speed value displayed
• Inputs: Compatible with Proximitor and Keyphasor Proximity Probes
• Sensor Power Output: -24 Vdc @ 20 mA
• Threshold: Fully automatic adjustment
• Hysteresis: Field-adjustable from 0.2 Vdc to 2.5 Vdc
• Power Requirements: 110-230 Vac, 50-60 Hz
• Environmental Rating: IP-rated for 0°C to +60°C operating temperature
• Weight: 1.13 kg (2.5 lb)
• EMC Standards: Compliant with EN61000-6-4 and EN61000-6-2

Global PLC Spare HUB’s Insight

• The TACH100 provides a high-reliability "second opinion" for critical machinery speed.
• Engineers prefer the TACH100 for its ability to power the probe directly in standalone mode.
• Its digital filtering prevents display jitter, ensuring readability even during high-vibration startups.
• A robust replacement for legacy analog tachometers in aging turbine control systems.

Ideal Equipment & Application Scenarios

• Turbine Monitoring: Real-time RPM tracking for overspeed protection verification.
• Compressor Stations: Local display for remote speed sensing units.
• Industrial Gearboxes: Monitoring shaft speed using high-count gear teeth (up to 99 events).
• Test Stands: Portable or fixed diagnostic tool for sensor calibration and verification.

Diagnostic & Integration Capabilities

• Automatic Signal Adaptation: No manual tuning required for signal threshold levels.
• Stable Readouts: Integrated display hysteresis minimizes digit flickering.
• High Altitude Performance: Certified for use up to 2000m altitude.
• Universal Integration: Parallel connection capability with existing permanent monitoring systems.

Shipping and Purchase Terms

• Express Delivery: Global shipping available via FedEx, UPS, and DHL.
• Processing Speed: Orders for the TACH100 ship within 24-48 hours.
• Warranty: Fully covered by a 12-month professional warranty.
• Packaging: Secure industrial packaging including the TACH100 and terminal connectors.

Frequently Asked Questions (FAQ)

• Can the TACH100 handle dual-pulse inputs for rotation direction? The TACH100 is a single-channel speed indicator; direction detection would require a different multi-channel monitor.
• Is the TACH100 compatible with third-party eddy current probes? While optimized for Bently Nevada sensors, it accepts signals from any probe meeting the millivolt/Vdc pulse requirements.
• How do I change the hysteresis setting? Hysteresis is field-adjustable via internal settings to optimize noise rejection for your specific environment.
• Does the display show decimals for RPM? The TACH100 provides high-accuracy integer readouts (1 RPM resolution), which is standard for high-speed industrial machinery.
• Selection Guide: TACH100 vs. Panel Meter? Choose the TACH100 because it includes the -24V Proximitor power supply and specialized Keyphasor signal processing that standard meters lack.

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