Bently Nevada 200150-08-05 General Purpose Accelerometer

Product Overview

The Bently Nevada 200150-08-05 is a general purpose accelerometer. It works with Trendmaster 2000 or Trendmaster Pro systems. This unit is made in the U.S.A. The 200150-08-05 suits standard acceleration-to-velocity channel types. You can use it for general vibration monitoring applications.

This model includes specific ordering options. The -08 option provides a 3/8-24 to 1/2 NPT mounting stud. The stud has a 1 inch hex shape. The -05 option gives multiple approvals. These include CSA, ATEX, and IECEx certifications. The Bently Nevada 200150-08-05 meets global safety standards.

Electrical Specifications

The 200150-08-05 delivers stable electrical performance. All specifications are at +25°C (+77°F). Below are the complete electrical parameters.

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

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

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

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

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

• Transverse Sensitivity: ≤7%

• Settling Time (within 5% of bias): ≤300 ms

• Excitation Voltage: 4.7 to 5.5 Vdc

• Quiescent Current: <800 µA

• Output Bias Voltage: +2.5 ± 0.23 Vdc

• Polarity: SIG+ positive with respect to SIG- (acceleration from base to connector)

Environmental Specifications

The Bently Nevada 200150-08-05 handles harsh conditions. It operates in a wide temperature range. Below are the environmental parameters.

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

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

• Sealing (Hermetic): 5x10⁻⁸ atm•cc/s (3.1x10⁻⁹ atm•in³/s) maximum

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

Physical Specifications

The 200150-08-05 has a compact and rugged design. It uses high-quality materials for durability. Below are the physical parameters.

• 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 Thread: 3/8-24 female

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

• Sensing Element: Ceramic

• Sensing Geometry: Shear

• Housing and Connector Material: 316L stainless steel

Mounting Stud Option (-08)

The -08 option adds a specific mounting stud. This stud converts 3/8-24 female thread to 1/2 NPT. The stud has a 1 inch hex shape for easy tool access. You can install the Bently Nevada 200150-08-05 securely using this stud. Proper mounting torque is 2.7 to 6.8 N•m. Do not exceed the maximum torque value.

Approvals Option (-05)

The -05 option provides multiple approvals for the 200150-08-05. These include CSA, ATEX, and IECEx certifications. This allows global installation in hazardous areas. Always check local regulations before installation. The Bently Nevada 200150-08-05 meets strict safety standards. These approvals cover explosive atmosphere protection.

Frequency Response Characteristics

The 200150-08-05 has a wide frequency range. It operates from 10 Hz to 1000 Hz within ±10% reference. The mounted resonant frequency exceeds 20 kHz. This high resonance avoids measurement errors near machine running speeds. Amplitude linearity stays within ±2% for most applications. Transverse sensitivity is only 7% maximum.

Sensing Element and Geometry

This accelerometer uses a ceramic sensing element. Ceramic provides stable and repeatable measurements. The sensing geometry is shear type. Shear design reduces base strain sensitivity. It also minimizes thermal transient errors. The Bently Nevada 200150-08-05 delivers accurate data in variable conditions.

Installation Guidance

Follow these steps to install the 200150-08-05 correctly.

1. Prepare Mounting Surface: Clean and flatten the mounting area.

2. Apply Thread Lubricant: Use a light oil on the stud threads.

3. Install Mounting Stud: Screw the -08 stud into the accelerometer.

4. Mount to Machine: Torque the 200150-08-05 to 2.7-6.8 N•m.

5. Connect Cable: Attach a compatible Bently Nevada cable.

6. Apply Excitation: Power the unit with 4.7 to 5.5 Vdc.

7. Verify Bias Voltage: Check output is +2.5 ± 0.23 Vdc.

Do not use impact tools on the Bently Nevada 200150-08-05. Keep the connector clean before cable attachment. Allow 300 ms settling time before taking measurements.

Package Contents

• One Bently Nevada 200150-08-05 accelerometer unit

• One 3/8-24 to 1/2 NPT mounting stud (1 inch hex, -08 option)

• One product identification label

• One hermetically sealed sensor assembly

• One anti-static protective bag

Frequently Asked Questions (FAQ)

Q1: Can the 200150-08-05 be used in explosive atmospheres?
A1: Yes, the Bently Nevada 200150-08-05 has -05 multiple approvals. This includes CSA, ATEX, and IECEx for hazardous areas. Check your specific zone requirements before installation.

Q2: What is the difference between 200150 and 200151 cables?
A2: The 200150-08-05 is the accelerometer sensor itself. The 200151 is a separate interface cable. You need both for a complete measurement path.

Q3: How do I verify if my -05 approval is still valid?
A3: Check the label on the Bently Nevada 200150-08-05 housing. Valid approvals are printed directly on the unit. Contact Bently Nevada for certificate copies.

Q4: Can I use this accelerometer underwater?
A4: No, the 200150-08-05 is rated for condensing humidity only. It is not submersible. The IP rating does not support continuous underwater use.

Q5: What happens if I exceed the 245g measurement range?
A5: Exceeding ±245g may saturate the Bently Nevada 200150-08-05 output. Short overloads usually do not damage the sensor. Repeated high-g shocks may degrade ceramic element performance.