NPT Mount Enveloping Accelerometer for Precision Monitoring

Discover the Bently Nevada 200157-04-05 enveloping accelerometer. This 200157-04-05 features 1/4 NPT pipe thread mounting. Perfect for detecting roller bearing faults and cavitation. Triple international certifications ensure global compliance. American-made reliability for critical applications.

Product Configuration Details

• Brand: Bently Nevada
• Full Model: 200157-04-05
• Series: Trendmaster Pro Enveloping
• Mounting Code -04: 1/4 NPT pipe thread
• Approval Code -05: CSA, ATEX, IECEx
• Hex Size: 1-3/8 inch
• Origin: USA Manufactured

Technical Performance Data

• Sensitivity: 10.2 mV/(m/s²) at 80 Hz
• Acceleration Range: ±245 m/s² (±25 g)
• Frequency Response: 10 Hz to 10,000 Hz
• Velocity Range: 14.7 mm/s RMS
• Linearity: ±2% maximum deviation
• Transverse Sensitivity: ≤7% cross-axis
• Settling Time: ≤300 milliseconds
• Resonant Frequency: >20 kHz

Electrical Specifications

• Operating Voltage: 4.7-5.5 VDC
• Current Consumption: <800 μA
• Output Bias: +2.5 VDC ±0.23 V
• Signal Type: Analog voltage output
• Polarity: Positive acceleration

Mechanical Design Features

• Housing Material: 316L stainless steel
• Dimensions: 17.5mm × 45.7mm
• Weight: 58 grams typical
• Base Thread: 3/8-24 female
• Mounting Torque: 2.7-6.8 N•m
• Sensing Technology: Ceramic shear
• Adapter Type: 1/4 NPT pipe thread

Environmental Specifications

• Operating Temperature: -40°C to +105°C
• Storage Temperature: -55°C to +121°C
• Shock Resistance: 49,050 m/s² peak
• Sealing Performance: Hermetic 5×10⁻⁸ atm•cc/s
• Humidity Rating: 100% condensing

Shipping & Delivery Options

• FedEx Express service available
• UPS Worldwide delivery
• DHL International shipping
• Real-time tracking provided
• Secure packaging guaranteed

Warranty Information

• 12-month comprehensive warranty
• Full defect protection coverage
• Effective from purchase date
• Quality commitment included

Package Contents

• 200157-04-05 Accelerometer unit
• 1/4 NPT mounting stud adapter
• Technical documentation
• Optional Certificate of Origin

Technical Questions & Answers

What are NPT threads used for in industrial applications?

Pipe thread connections in industrial systems. Common in North American equipment and piping.

How does enveloping technology help detect cavitation?

Amplifies high-frequency cavitation signatures. Makes early detection possible before damage occurs.

What is the advantage of faster 300ms response time?

Quicker system stabilization. Enables rapid monitoring of dynamic machinery conditions.

Can this sensor handle wet environments?

Yes, hermetic sealing and 316L stainless steel provide excellent corrosion resistance.

What makes this model ideal for bearing monitoring?

Enhanced high-frequency response captures bearing defect frequencies effectively.

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