Bently Nevada

Bently Nevada 1900/65A-01-01-02-00-00 General Purpose Equipment Monitor

SKU 1900/65A-01-01-02-00-00

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada
  • Product No.: 1900/65A-01-01-02-00-00
  • Origin United States
  • Product Type: Machinery Protection Systems
  • Payment: T/T, Western Union
  • Weight: 0.32 kg
  • Dimensions: 280 x 220 x 180 mm (11.0 x 8.7 x 7.1 inches)
  • Shipping port: Xiamen
  • Warranty: 12 months

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Product Description

Description

Providing dedicated, continuous machinery protection in space-constrained or standalone applications, the Bently Nevada 1900/65A functions as a self-contained, four-channel general-purpose monitor. This system is engineered to track critical dynamic variables such as vibration, velocity, acceleration, or shaft displacement, alongside direct temperature inputs. This specific configuration, model number 1900/65A-01-01-02-00-00, integrates an AC/DC universal power supply, an attached display module, expanded relay/recorder outputs, and Modbus communications. By processing sensor signals directly at the machine face, it delivers instantaneous alarm and trip capabilities to prevent catastrophic mechanical failures.

Features

  • Four configurable transducer channels supporting proximity probes, accelerometers, or velocity sensors.
  • Four dedicated temperature channels compatible with RTDs and Type E, J, K, or T thermocouples.
  • Six programmable SPDT relay outputs for flexible trip-multiply and alarm voting configurations.
  • Four 4 to 20 mA analog outputs for direct PLC/DCS chart recording integration.
  • Integrated display interface providing real-time channel readings, alarm statuses, and system diagnostics.
  • Dual Modbus communications supporting both Modbus RTU (serial) and Modbus TCP/IP (Ethernet) protocols.

Applications

  • Balance-of-plant machinery monitoring including cooling tower fans, industrial blowers, and air handlers.
  • Continuous vibration tracking for centrifugal and positive displacement water pumps.
  • Thermal and dynamic oversight of large-frame electric induction motors.
  • Protection of small reciprocating and screw-type gas compressors.

Ordering Information

Option Code Description Configured Status
01 Power Option: 85 to 264 Vac (50/60 Hz) / 120 to 370 Vdc Included
01 Display Option: Combined Display/Modbus/RTD/TC module (Attached) Included
02 I/O Option: 6 Relays, 4 Recorder Outputs, Modbus RTU & TCP Included
00 Approvals: Non-Hazardous Area (Standard) Included
00 Mounting Option: Standard Panel/Wall Mount bracket Included

Technical Specifications

Manufacturer Bently Nevada
Model Series 1900 Series
Supply Voltage Range 85 to 264 Vac, 47 to 63 Hz, or 120 to 370 Vdc
Dynamic Signal Inputs 4 Channels (Supports Proxmitiy, Acceleration, or Velocity transducers)
Transducer Power Output -24 Vdc, up to 40 mA per channel
Temperature Sensor Support 3-wire platinum RTD (100 ohm), Type J, K, T, or E Thermocouples
Relay Contact Rating SPDT, 5 A at 250 Vac / 5 A at 30 Vdc (resistive load)
Ethernet Port 10/100 Base-T (Modbus TCP/IP, configuration port)
Operating Temperature -20 to +70 degC (-4 to +158 Fahrenheit)
Country of Origin United States
Shipping Weight (Calculated) 2.5 kg (5.5 lbs)
Package Dimensions (Calculated) 280 x 220 x 180 mm (11.0 x 8.7 x 7.1 inches)

Empirical Engineering Insights

Alternative Models & Compatibility

The "A" designation represents the enhanced version of the legacy 1900/65 monitor. While the standard wiring footprints are highly compatible, the 1900/65A introduces upgraded internal processing capabilities and extended Modbus mapping ranges. When substituting older modules with the 1900/65A-01-01-02-00-00, verify that your SCADA/PLC Modbus polling register maps have been updated to reflect the new contiguous parameter locations.

Application Pitfalls & Engineering Notes

Ensure that total transducer excitation current does not exceed the internal rail limits. While the unit provides native -24 Vdc sensor power, drawing maximum current simultaneously on all channels at high ambient temperatures (above 60 degC) can accelerate thermal fatigue of the internal DC/DC converter. If using heavy-current active accelerometers, verify the total load beforehand.

Commissioning & Wiring Tips

To prevent electromagnetic interference from corrupting critical vibration readings, always land the transducer cable shields directly at the monitor's dedicated shield terminals. Never ground the shield at both ends, as this will introduce a ground loop capable of distorting the high-frequency AC components of your dynamic signals.

Installation Guidelines

CRITICAL WARNING

Isolate and lock out all high-voltage power lines feeding the machine and monitor enclosure prior to termination. Dangerous voltages can be present on the relay contacts even when the main unit is powered off. Wait a minimum of 5 minutes for residual capacitive charges to dissipate before removing internal terminal assemblies.

1

Mount the monitor securely in a NEMA-rated or IP-rated enclosure suited to the industrial environment to protect against dust and liquid ingress.

2

Terminate AC power to terminals L, N, and PE using a minimum of 1.5 mm2 (16 AWG) wire with an inline overcurrent protection device.

3

Wire the vibration transducers and temperature sensors to their respective terminal blocks, observing polarities and ensuring proper shield single-point grounding.

4

Connect the network configuration cable to the Ethernet port and use the Bently Nevada software to define alarm setpoints and channel scale factors.

Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What is the difference between a 1900/65 and 1900/65A?
The 1900/65A revision offers a more powerful processor, improved noise rejection on transducer inputs, and updated Modbus mapping registers over the legacy 1900/65.
Can I connect both proximity probes and accelerometers to the dynamic channels?
Yes, each of the four dynamic input channels can be individually configured via software to interface with proximity probes, accelerometers, or velocity sensors.
How is the 1900/65A-01-01-02-00-00 configured?
Configuration is handled via the front RJ-45 Ethernet port using Bently Nevada configuration software, allowing you to set filter corners, alarm limits, and relay logic.
Does this model support Modbus TCP/IP communication directly?
Yes, this configuration includes the -02 option, which provides dual communication capability over Modbus RTU (serial) and Modbus TCP/IP (Ethernet).
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1900/65A-01-01-02-00-00

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Bently Nevada 1900/65A-01-01-02-00-00 General Purpose Equipment Monitor

Only 3 item(s) left in stock
  • Manufacturer: Bently Nevada

  • Product No.: 1900/65A-01-01-02-00-00

  • Country of origin:United States

  • Product Type: Machinery Protection Systems

  • Payment: T/T, Western Union

  • Weight: 320g

  • Dimensions: 280 x 220 x 180 mm (11.0 x 8.7 x 7.1 inches)

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Description

Providing dedicated, continuous machinery protection in space-constrained or standalone applications, the Bently Nevada 1900/65A functions as a self-contained, four-channel general-purpose monitor. This system is engineered to track critical dynamic variables such as vibration, velocity, acceleration, or shaft displacement, alongside direct temperature inputs. This specific configuration, model number 1900/65A-01-01-02-00-00, integrates an AC/DC universal power supply, an attached display module, expanded relay/recorder outputs, and Modbus communications. By processing sensor signals directly at the machine face, it delivers instantaneous alarm and trip capabilities to prevent catastrophic mechanical failures.

Features

  • Four configurable transducer channels supporting proximity probes, accelerometers, or velocity sensors.
  • Four dedicated temperature channels compatible with RTDs and Type E, J, K, or T thermocouples.
  • Six programmable SPDT relay outputs for flexible trip-multiply and alarm voting configurations.
  • Four 4 to 20 mA analog outputs for direct PLC/DCS chart recording integration.
  • Integrated display interface providing real-time channel readings, alarm statuses, and system diagnostics.
  • Dual Modbus communications supporting both Modbus RTU (serial) and Modbus TCP/IP (Ethernet) protocols.

Applications

  • Balance-of-plant machinery monitoring including cooling tower fans, industrial blowers, and air handlers.
  • Continuous vibration tracking for centrifugal and positive displacement water pumps.
  • Thermal and dynamic oversight of large-frame electric induction motors.
  • Protection of small reciprocating and screw-type gas compressors.

Ordering Information

Option Code Description Configured Status
01 Power Option: 85 to 264 Vac (50/60 Hz) / 120 to 370 Vdc Included
01 Display Option: Combined Display/Modbus/RTD/TC module (Attached) Included
02 I/O Option: 6 Relays, 4 Recorder Outputs, Modbus RTU & TCP Included
00 Approvals: Non-Hazardous Area (Standard) Included
00 Mounting Option: Standard Panel/Wall Mount bracket Included

Technical Specifications

Manufacturer Bently Nevada
Model Series 1900 Series
Supply Voltage Range 85 to 264 Vac, 47 to 63 Hz, or 120 to 370 Vdc
Dynamic Signal Inputs 4 Channels (Supports Proxmitiy, Acceleration, or Velocity transducers)
Transducer Power Output -24 Vdc, up to 40 mA per channel
Temperature Sensor Support 3-wire platinum RTD (100 ohm), Type J, K, T, or E Thermocouples
Relay Contact Rating SPDT, 5 A at 250 Vac / 5 A at 30 Vdc (resistive load)
Ethernet Port 10/100 Base-T (Modbus TCP/IP, configuration port)
Operating Temperature -20 to +70 degC (-4 to +158 Fahrenheit)
Country of Origin United States
Shipping Weight (Calculated) 2.5 kg (5.5 lbs)
Package Dimensions (Calculated) 280 x 220 x 180 mm (11.0 x 8.7 x 7.1 inches)

Empirical Engineering Insights

Alternative Models & Compatibility

The "A" designation represents the enhanced version of the legacy 1900/65 monitor. While the standard wiring footprints are highly compatible, the 1900/65A introduces upgraded internal processing capabilities and extended Modbus mapping ranges. When substituting older modules with the 1900/65A-01-01-02-00-00, verify that your SCADA/PLC Modbus polling register maps have been updated to reflect the new contiguous parameter locations.

Application Pitfalls & Engineering Notes

Ensure that total transducer excitation current does not exceed the internal rail limits. While the unit provides native -24 Vdc sensor power, drawing maximum current simultaneously on all channels at high ambient temperatures (above 60 degC) can accelerate thermal fatigue of the internal DC/DC converter. If using heavy-current active accelerometers, verify the total load beforehand.

Commissioning & Wiring Tips

To prevent electromagnetic interference from corrupting critical vibration readings, always land the transducer cable shields directly at the monitor's dedicated shield terminals. Never ground the shield at both ends, as this will introduce a ground loop capable of distorting the high-frequency AC components of your dynamic signals.

Installation Guidelines

CRITICAL WARNING

Isolate and lock out all high-voltage power lines feeding the machine and monitor enclosure prior to termination. Dangerous voltages can be present on the relay contacts even when the main unit is powered off. Wait a minimum of 5 minutes for residual capacitive charges to dissipate before removing internal terminal assemblies.

1

Mount the monitor securely in a NEMA-rated or IP-rated enclosure suited to the industrial environment to protect against dust and liquid ingress.

2

Terminate AC power to terminals L, N, and PE using a minimum of 1.5 mm2 (16 AWG) wire with an inline overcurrent protection device.

3

Wire the vibration transducers and temperature sensors to their respective terminal blocks, observing polarities and ensuring proper shield single-point grounding.

4

Connect the network configuration cable to the Ethernet port and use the Bently Nevada software to define alarm setpoints and channel scale factors.

What is the difference between a 1900/65 and 1900/65A?

The 1900/65A revision offers a more powerful processor, improved noise rejection on transducer inputs, and updated Modbus mapping registers over the legacy 1900/65.

Can I connect both proximity probes and accelerometers to the dynamic channels?

Yes, each of the four dynamic input channels can be individually configured via software to interface with proximity probes, accelerometers, or velocity sensors.

How is the 1900/65A-01-01-02-00-00 configured?

Configuration is handled via the front RJ-45 Ethernet port using Bently Nevada configuration software, allowing you to set filter corners, alarm limits, and relay logic.

Does this model support Modbus TCP/IP communication directly?

Yes, this configuration includes the -02 option, which provides dual communication capability over Modbus RTU (serial) and Modbus TCP/IP (Ethernet).

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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