Bently Nevada Certified Enveloping Trendmaster Pro Accelerometer

Global certified vibration monitoring for critical applications. The 200157-21-05 combines advanced enveloping technology with international approvals. Features metric and imperial mounting flexibility. Perfect for hazardous area bearing monitoring. Delivers reliable performance with triple certification compliance.

Certification & Safety Features

• Triple global certifications CSA, ATEX, and IECEx approved
• Dual thread mounting 3/8-24 OD to M6x1 ID adapter stud
• Hazardous area rated for explosive environments
• Hermetic sealing ensures long-term reliability
• Enveloping technology for early fault detection

Model Configuration Details

• Product Series: 200157 Enveloping Trendmaster Pro
• Mounting System: 21 - 3/8-24 to M6x1 Adapter Stud
• Certification Level: 05 - CSA, ATEX, IECEx Approved
• Stud Design: 1-3/8 Inch Hex Plate Configuration
• Application Focus: Bearing & Cavitation Monitoring

Technical Performance Data

• Full Product Code: 200157-21-05
• Voltage Sensitivity: 10.2 mV/(m/s²) ±12% at 80Hz
• Acceleration Range: ±245 m/s² (±25g peak)
• Broadband Response: 10Hz to 10,000Hz range
• Resonant Frequency: >20kHz mounted
• Measurement Accuracy: ±2% amplitude linearity
• Cross-Axis Sensitivity: ≤7% maximum
• Power-Up Time: ≤300ms settling time
• Operating Voltage: 4.7 to 5.5 VDC required
• Signal Output: +2.5 ± 0.23 VDC bias
• Power Consumption: <800 μA quiescent current
• Shock Survival: 49,050 m/s² (5,000g peak)
• Operating Temp: -40°C to +105°C range
• Housing Material: 316L Stainless Steel

Mounting & Physical Specs

• Adapter Stud: 3/8-24 outer to M6x1 inner thread
• Base Thread: 3/8-24 female mounting
• Hex Size: 1-3/8 inch plate dimension
• Overall Dimensions: 17.5mm x 45.7mm
• Unit Weight: 58 grams typical
• Installation Torque: 2.7 to 6.8 N•m

Environmental Ratings

• Sealing Integrity: 5X10⁻⁸ atm•cc/s hermetic
• Humidity Tolerance: 100% condensing non-submerged
• Storage Temperature: -55°C to +121°C range
• Material Compatibility: 316L stainless steel housing
• Sensing Technology: Ceramic shear element

Industry Applications

• Roller bearing condition monitoring in hazardous areas
• Cavitation detection in certified equipment
• Predictive maintenance in explosive atmospheres
• International projects requiring multiple certifications
• Critical machinery protection systems

Global Logistics

• FedEx International Express shipping
• UPS Worldwide Saver options
• DHL Global Mail service available
• Expedited processing for urgent requirements
• Certified documentation included

Warranty Protection

• 12-month comprehensive coverage period
• Performance specification guarantee
• Material and workmanship protection
• Technical application support
• Quality commitment assurance

Expert Technical Support

What certifications does this model include?

Carries CSA, ATEX, and IECEx approvals for global hazardous area use.

What is the advantage of the dual-thread stud?

Allows mounting on both imperial 3/8-24 and metric M6x1 threaded surfaces.

How does enveloping help bearing monitoring?

Processes vibration signals to detect early stage bearing degradation.

What environments require these certifications?

Hazardous areas with explosive atmospheres where safety certification is mandatory.

What power supply is needed for operation?

Requires 4.7 to 5.5 VDC excitation voltage with less than 800μA current draw.

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