CAMLogic Digital Revolution Monitor SMD20 Series

Introduction – CAMLogic Digital Revolution Monitor SMD20 Series

The CAMLogic Digital Revolution Monitor SMD20 Series is a robust and precise device engineered to monitor the rotational speed of shafts, drives, and conveyors in demanding industrial environments. Designed and manufactured in Italy, it ensures continuous supervision of motion and provides an automatic relay signal if the speed falls below a pre-set threshold. This makes it an essential safety and control component for mechanical systems where speed consistency is critical.

The monitor supports a wide measuring range from 1 to 999 rpm, allowing versatile use across machinery types. Configuration is simple—three internal selectors let users set the desired rpm quickly and accurately, while an LED indicator displays real-time relay status. Compact and maintenance-free, the SMD20 combines technical reliability with easy installation.

Built from powder-coated die-cast aluminium and rated IP65, the SMD20 provides solid protection against dust and water jets. The ATEX-certified design (Ex II 2D Ex tD A21 IP65 T87°C) ensures safe use in areas with explosive dust atmospheres (Zone 21). Dubai Sensor proudly offers the SMD20 Series to industries across the UAE and MENA, supporting safe and efficient process automation.

Available in multiple configurations—SMD20 (standard shaft version), SMD20P (bracket-mounted, up to 2000 rpm), and SMD20VN (for conveyor belt monitoring)—the series covers a broad range of industrial speed supervision needs.

Key Features & Benefits

• Monitoring range from 1 to 999 rpm (SMD20), 10 to 2000 rpm (SMD20P), or 0.5–900 mm/s (SMD20VN).
  
  
• SPDT relay output (5 A @ 250 VAC) for clear status signaling.
  
  
• ATEX-certified for use in dust explosion-risk zones (Zone 21).
  
  
• IP65-rated aluminium housing ensures durability and environmental protection.
  
  
• Simple configuration using three internal rpm selectors.
  
  
• LED indicator for relay and operating status.
  
  
• No maintenance required – shaft mounted on permanently lubricated bearings.
  
  
• Flexible installation via direct coupling, flange, or bracket mount.
  
  
• Compact and lightweight design (approx. 1.5–1.6 kg).
  
  
• Optional customization with display and process connection variants.
  
  
• High-temperature version available (up to +120 °C).
  
  

Technical Specifications – CAMLogic Digital Revolution Monitor SMD20 Series

Standards & Certifications

• ATEX Certification: Ex II 2D Ex tD A21 IP65 T87°C (Zone 21 – Dust atmospheres)
  
  
• European Directives Compliance:
  
  
• 2011/65/EU – RoHS
  
  
• 2014/30/EU – EMC
  
  
• 2014/34/EU – ATEX
  
  
• 2014/35/EU – Low Voltage Directive (LVD)
  
  
• Installation Compliance: IEC 60079-14 for explosive environments
  
  
• Markings: CE, ATEX
  
  

Applications & Industries

Typical Applications:

• Speed supervision of conveyor belts, shafts, and rotating machinery
  
  
• Monitoring speed drop or failure in motors, mixers, crushers, or fans
  
  
• Detecting belt slippage and speed deviations
  
  
• Process automation and mechanical drive safety systems
  
  

Industries Served:

• Bulk material handling and conveying systems
  
  
• Cement, mining, and aggregates
  
  
• Food and grain processing
  
  
• Power generation
  
  
• Chemical and pharmaceutical production
  
  
• General industrial automation and mechanical engineering
  
  

(Available in the UAE and MENA regions through Dubai Sensor.)

Installation, Commissioning & Maintenance

Installation is straightforward and requires no specialized tools. The SMD20 can be mounted directly via four Ø6 holes on a Ø90 mm pitch circle, with optional flange or bracket kits for flexible setup. Proper alignment between the shaft and coupling ensures accurate operation.

The device should be grounded using both internal and external terminals. Wiring must be performed with the power off, using conductors up to 2.5 mm². No lubrication is required, as the unit’s shaft runs on permanently lubricated ball bearings, ensuring long-term reliability without maintenance.

For ATEX installations, seal all cable entries with certified glands (minimum IP65) and comply with IEC 60079-14 standards.

Why Choose CAMLogic Digital Revolution Monitor SMD20 Series

The CAMLogic SMD20 Series delivers precision, reliability, and industrial-grade safety for rotational speed monitoring applications. Designed for harsh conditions, it provides accurate performance and minimal downtime thanks to its rugged aluminium construction and high IP65 ingress protection.

With its simple configuration, ATEX certification, and maintenance-free design, the SMD20 ensures dependable monitoring for process and safety control systems. It represents a proven choice for industries that demand both performance and compliance.

Ordering Guide

1. Select model type:
   
   
• SMD20 – Standard version (shaft applications)
  
  
• SMD20P – Bracket-mounted version (higher rpm range)
  
  
• SMD20VN – Conveyor version (linear speed)
  
  
2. Choose power supply: 115/230 VAC, 24/48 VAC, or 24 VDC.
   
   
3. Confirm installation type: direct, flange, or bracket.
   
   
4. Specify options: high-temperature version or external display (where available).
   
   
5. Contact Dubai Sensor, the authorized distributor for CAMLogic in the UAE and MENA region, for product configuration and purchase.