Hermetically Sealed Variable Reluctance Speed Sensors

Premium Series

• Principles of Operation
• Standard Features and Specifications
• Standard Models
• Custom Models
• ATEX certified Models

Explore other types of variable reluctance speed sensors

Premium series VR speed sensors are hermetically sealed for resistance to moisture and other atmospheric contamination and can withstand repeated thermocycling in temperatures ranging from -450F to +450F, making them ideal for use in aerospace and other applications with broad temperature ranges. They are also excellent for use in cyrogenics for their ability to operate dependably at extremely low temperatures for long periods of time.

Standard Features and Specifications

• Variable Reluctance (VR) or inductive type (no internal magnet)
• Hermetically sealed, heli-arc welded construction
• Two (2) pin gold plated glass sealed connector (mates with: MS3106-10SL-4S)
• 300 series stainless steel housing (lock-nut included)
• Magnet that resists demagnetization
• Unique potting that compensates for temperature extremes
• Focusing tip (pole piece) which allows greater air gap with no signal loss
• High signal output
• Temperature range: -450°F to +450°F (-270°C to +232°C)
• IR leakage: 100 Mohms @ 100 VDC minimum
• High Shock and Vibration resistance
• Intrinsically Safe certified versions available (ATEX and CSA)
• Unconditional one (1) year warranty if used within specifications

Standard Models

1. Dimensions in inches
2. Specifications +/- 10%
3. Mounting threads UNF-2A

Custom VR Sensors

In addition to the standard models shown above, premium series VR sensors are available in custom lengths, diameters, configurations, and mounting threads. Custom operating specifications (resistance, inductance, etc). are available, as well as options such as pigtail leads or NPT threading. Additional sensor customization options

We provide custom sensors on a regular basis and are happy to help develop a solution for your application, or a replacement sensor for an existing application. Please contact our engineering department at eng@motionsensors.com or 252-331-2080 to discuss your application requirements.