BENTLY 1900/65A-00-00-01-00-00

Description

Detailed parameter table

BENTLY 1900/65A-00-00-01-00-00

Product introduction

The Bently Nevada 1900/65A-00-00-01-00-00 is a compact, single-channel vibration monitor designed for standalone protection of small to medium-sized rotating machinery. As a variant of the 1900/65A series, this model (00-00-01-00-00) features a simplified relay configuration—with 1 Form C relay instead of 2—making it ideal for applications where only a single protective action (e.g., shutdown or warning) is required.

Unlike the 3500/22-01-01-00 138607-01, which focuses on temperature data acquisition in integrated systems, the 1900/65A-00-00-01-00-00 combines vibration sensing and protective action in one unit. It operates independently, requiring no external controller or backplane, making it suitable for retrofitting into older machinery or remote locations with limited infrastructure.

Powered by 115/230V AC mains, the module eliminates the need for specialized 24V DC supplies, simplifying installation. Its front-panel controls allow on-site technicians to set vibration thresholds quickly, while the LCD display provides real-time readings—offering a cost-effective solution for monitoring pumps, fans, and small motors where complex system integration is unnecessary.

Core advantages and technical highlights

Simplified protective logic: With 1 Form C relay, the 1900/65A-00-00-01-00-00 streamlines protection for applications requiring a single action (e.g., immediate shutdown when vibration exceeds a critical threshold). This contrasts with the 3500/22-01-01-00 138607-01, which relies on external modules like the 3500/65 145988-02 to execute actions—adding complexity and cost.

Standalone operation: The module functions independently, with no need for a controller or backplane. This makes it perfect for remote assets like well pumps or offshore platform auxiliary equipment, where connecting to a 3500-series system would be impractical. Its AC power compatibility further enhances its versatility in locations without 24V DC infrastructure.

Cost-effective monitoring: Priced lower than both the 3500/22-01-01-00 138607-01 and multi-relay 1900/65A variants, this model offers essential vibration protection at a budget-friendly price. It avoids the expense of integrating with a larger system, making it suitable for small facilities or auxiliary machinery where the 3500-series’ advanced features would be overkill.

User-friendly interface: Front-panel potentiometers and an LCD display enable quick setup and real-time monitoring without software. Technicians can adjust thresholds (e.g., set a shutdown at 800 μm) in minutes, unlike the 3500/22-01-01-00 138607-01, which requires 170180-01-00 software for configuration.

Comparison with 3500/22-01-01-00 138607-01

BENTLY 1900/65A-00-00-01-00-00

Typical application scenarios

In a rural water supply system, the 1900/65A-00-00-01-00-00 monitors a submersible well pump using a velocity transducer. Technicians set a shutdown threshold of 15 mm/s RMS via the front panel. When the pump’s bearing wears, vibration exceeds this limit, triggering the relay to stop the pump—preventing seizure. Its AC power input connects directly to the utility supply, avoiding the need for a 24V DC converter, while its standalone design eliminates dependency on a central control system.

At a grain silo facility, the module protects a conveyor belt motor with a 3300 proximity probe. It is configured to trigger an alarm horn (via its relay) when shaft vibration exceeds 500 μm. Unlike the 3500/22-01-01-00 138607-01, which would require a controller and relay module to achieve the same result, this setup costs 60% less and is installed in minutes using the front-panel controls.

In a remote mining camp, the 1900/65A-00-00-01-00-00 monitors a diesel generator’s vibration. Its rugged design withstands the camp’s dusty environment, while the 4-20 mA output sends data to a local PLC for trending. When vibration spikes due to a loose pulley, the relay shuts down the generator, preventing further damage—all without needing to integrate with a complex 3500-series system.

Related model recommendations

3300 Proximity Probes: Compatible sensors for measuring shaft vibration, optimized for the module’s input range.

1900/20 Power Supply: Redundant AC supply for critical installations requiring uninterrupted operation.

177232-01 Calibration Tool: Handheld device for verifying vibration measurement accuracy.

1900/65A-00-00-02-00-01: 2-relay variant for applications needing both warning and shutdown actions.

3500/22-01-01-00 138607-01: Temperature module that can complement the 1900/65A-00-00-01-00-00 in hybrid monitoring setups.

3500/60: Digital output module for integrating standalone 1900-series monitors into 3500 systems.

Installation, commissioning and maintenance instructions

Installation preparation: Mount the 1900/65A-00-00-01-00-00 on a control panel using the included brackets, ensuring the LCD is visible to operators. Connect the vibration sensor (proximity probe or velocity transducer) to the terminal block with shielded cable, grounding the shield at the module end. Wire the 115/230V AC power supply, matching the selected voltage (via internal jumper). Connect the relay output to the protective device (e.g., shutdown relay or alarm).

Commissioning steps: Power on the module and confirm the LCD displays “0” with no sensor input. Use the 177232-01 calibration tool to simulate vibration signals, adjusting the threshold potentiometer to the desired level (e.g., 500 μm). Verify the relay activates when the threshold is exceeded and that the 4-20 mA output scales correctly (e.g., 4 mA = 0 μm, 20 mA = 1000 μm). Test the shutdown logic by triggering the relay and ensuring the connected machinery responds as intended.

Maintenance suggestions: Inspect monthly, checking terminal connections for tightness and corrosion—clean with a dry cloth if needed. Calibrate semi-annually using the 177232-01 tool to ensure threshold accuracy, adjusting the potentiometer if drift exceeds ±5%. Replace the LCD backlight annually if dim. Unlike the 3500/22-01-01-00 138607-01, no software updates or surge protection testing are required, minimizing upkeep.

Service and guarantee commitment

The 1900/65A-00-00-01-00-00 is backed by a 12-month warranty covering manufacturing defects, including relay failure, calibration drift beyond specifications, or LCD malfunction. During this period, Bently Nevada provides free repair or replacement, along with technical support for basic setup and troubleshooting.

Our service team offers phone-based assistance during business hours, helping diagnose issues like sensor wiring errors or relay activation problems. Extended warranty options (up to 3 years) include annual calibration checks and priority access to replacement parts. Built on Bently’s legacy of reliable industrial monitoring, this module guarantees cost-effective vibration protection for standalone machinery—delivering essential functionality without the complexity of integrated systems like the 3500/22-01-01-00 138607-01.