Overview

The Bently Nevada 200150-04-05 is a general purpose accelerometer. This unit belongs to the Trendmaster 2000 and Trendmaster Pro families. It provides reliable vibration measurement for machinery monitoring. The 200150-04-05 features a 3/8-24 to 1/4 NPT hex plate stud. Industrial users trust this accelerometer for general application vibration monitoring.

This accelerometer is made in the U.S.A. The housing is 316L stainless steel for corrosion resistance. The sensor uses ceramic shear sensing element technology. The unit carries multiple approvals including CSA, ATEX, and IECEx for hazardous area installation.

Ordering Information Breakdown

The 200150-04-05 part number defines the complete accelerometer configuration.

Configuration Details

• Product Type: General Purpose Trendmaster 2000 or Trendmaster Pro Accelerometer

• Mounting Stud Option (04): 3/8-24 to 1/4 NPT 1-3/8 inch hex plate stud

• Approvals (05): Multiple Approvals (CSA, ATEX, and IECEx)

• Used with ProTIM Option: Standard Acceleration-to-Velocity channel type (-01)

• Type of Application: General application

Electrical Specifications

The Bently Nevada 200150-04-05 provides consistent electrical performance at +25°C (+77°F).

Sensitivity and Range

• Sensitivity @ 80 Hz (±12%): 10.2 mV/(m/s²) (100 mV/g)

• Measurement Range: ±245 m/s² (±25 g)

• Measurement Range (Low Level): 14.7 mm/s² (1.5 mg)

Frequency Response

• Frequency Range Referenced to 80 Hz (±10%): 10 to 1000 Hz (600 to 60,000 cpm)

• Mounted Resonant Frequency: >20 kHz (>1200 kcpm)

Linearity and Accuracy

• Amplitude Linearity (1 to 10g pk): ±2%

• Transverse Sensitivity: ≤7%

• Settling Time (Within 5% of Bias): ≤300 ms

Power and Output

• Excitation Voltage: 4.7 to 5.5 Vdc

• Quiescent Current: <800 µA

• Output Bias Voltage: +2.5 ± 0.23 Vdc

• Polarity (Acceleration from Base to Connector): SIG+ positive with respect to SIG-

Environmental Specifications

The 200150-04-05 withstands demanding environmental conditions.

Shock and Temperature

• Axial Shock Limit: 49,050 m/s² pk (5,000 g pk)

• Temperature Range: -40°C to +105°C (-40°F to +221°F)

Sealing and Humidity

• Sealing (Hermetic): 5×10⁻⁸ atm•cc/s (3.1×10⁻⁹ atm•in³/s) maximum

• Relative Humidity: 100% relative, condensing, non-submerged

Physical Specifications

The Bently Nevada 200150-04-05 has a compact, rugged design.

Dimensions and Weight

• Size (Hex x Height): 17.5 mm x 45.7 mm (11/16 in x 1.8 in)

• Weight: 58 g (2.0 oz) typical

Mounting

• Mounting Thread (Accelerometer): 3/8-24 female

• Mounting Stud Option (04): 3/8-24 to 1/4 NPT 1-3/8 inch hex plate stud

• Mounting Torque: 2.7 to 6.8 N•m (2 to 5 ft•lbf)

Construction

• Sensing Element: Ceramic

• Sensing Geometry: Shear

• Housing and Connector Material: 316L stainless steel

Hex Plate Stud Details

The 200150-04-05 includes a special hex plate stud for mounting flexibility.

Stud Specifications

• Type: 3/8-24 to 1/4 NPT adapter

• Hex Plate Size: 1-3/8 inch

• Function: Adapts accelerometer to 1/4 NPT mounting ports

• Material: Compatible with 316L stainless steel housing

Agency Approvals

The 200150-04-05 carries multiple hazardous area certifications.

Included Approvals

• CSA: Canadian Standards Association approval

• ATEX: European Union hazardous area certification

• IECEx: International Electrotechnical Commission certification

Key Features

The 200150-04-05 provides reliable vibration measurement for general applications. The 100 mV/g sensitivity delivers strong signal output. The ±245 m/s² measurement range captures most machinery vibrations. The 10 to 1000 Hz frequency range covers common machine fault frequencies.

The ceramic shear sensing element offers excellent stability. The shear geometry rejects base strain and thermal transients. The 316L stainless steel housing resists corrosion in harsh environments. The hermetic sealing prevents moisture ingress.

The accelerometer operates from -40°C to +105°C. The unit withstands 100% condensing humidity without damage. The 5,000 g axial shock limit provides survivability. The settling time under 300 ms allows rapid deployment.

The multiple agency approvals allow installation in explosive atmospheres. The special hex plate stud adapts 3/8-24 to 1/4 NPT mounting. This allows installation in standard 1/4 NPT ports without additional adapters.

Installation Guidelines

Install the 200150-04-05 using the included hex plate stud. Thread the 1/4 NPT end into the mounting port first. Tighten to standard NPT fitting torque. Then thread the accelerometer onto the 3/8-24 end of the stud.

Tighten the accelerometer to 2.7 to 6.8 N·m torque. Do not overtighten beyond the specified range. Use the 1-3/8 inch hex plate for wrench access. Connect the accelerometer to the Trendmaster monitoring system.

Verify excitation voltage is between 4.7 and 5.5 Vdc. Ensure the cable does not strain the connector. Protect the accelerometer from direct impact. Verify the mounting surface is clean before installation.

Package Contents

• Bently Nevada 200150-04-05 Accelerometer (1 unit)

• 3/8-24 to 1/4 NPT 1-3/8 inch hex plate stud (factory installed)

• Installation instruction sheet

• ATEX/IECEx/CSA certification documentation

Frequently Asked Questions (FAQ)

1. What is the mounting stud included with the Bently Nevada 200150-04-05?
The 200150-04-05 includes a 3/8-24 to 1/4 NPT hex plate stud. The hex plate measures 1-3/8 inches. This stud adapts the accelerometer to 1/4 NPT mounting ports.

2. What is the sensitivity of this Trendmaster accelerometer?
The 200150-04-05 has a sensitivity of 10.2 mV/(m/s²) or 100 mV/g at 80 Hz. The tolerance is ±12%. This sensitivity suits general purpose vibration monitoring.

3. What hazardous area approvals does the 200150-04-05 carry?
The 200150-04-05 carries CSA, ATEX, and IECEx approvals (option 05). These certifications allow installation in explosive atmospheres worldwide.

4. What is the temperature range for this Bently Nevada accelerometer?
The 200150-04-05 operates from -40°C to +105°C (-40°F to +221°F). The housing is 316L stainless steel. Sealing is hermetic at 5×10⁻⁸ atm•cc/s maximum.

5. What is the frequency range of the 200150-04-05?
The frequency range is 10 to 1000 Hz (600 to 60,000 cpm) referenced to 80 Hz. The mounted resonant frequency exceeds 20 kHz. This range covers common machine vibration frequencies.