The SICK CLV420-0010 barcode scanner has quietly become one of those devices you still see bolted onto conveyors, packaging lines, and sorting systems years after installation—and still doing its job reliably. Even though this particular model has been officially discontinued by SICK, thousands of systems continue to depend on the SICK CLV420-0010 barcode scanner for fast, accurate reading of 1D codes in demanding industrial environments. If you’re maintaining an existing line, retrofitting older equipment, or researching a like-for-like replacement, understanding what makes the SICK CLV420-0010 barcode scanner so effective will help you make smarter decisions about integration, migration, and long-term support.
In this technical-yet-practical overview, we’ll explore how the SICK CLV420-0010 barcode scanner works, its key specifications, best practices for installation, and what to consider when selecting alternative or next-generation models.
What Is the SICK CLV420-0010 Barcode Scanner?
At its core, the SICK CLV420-0010 barcode scanner is a compact, fixed-mount laser scanner from SICK’s CLV42x family, purpose-built for reading 1D barcodes in mid-range applications. It uses a visible red Class 2 laser in a line-scanner configuration to sweep across a barcode as it passes through the reading field.
The SICK CLV420-0010 barcode scanner supports essentially all mainstream 1D symbologies, including Code 39, Code 128, EAN/UPC, ITF, Code 93, Pharmacode, and more. That makes it suitable for everything from product identification on consumer goods packaging to tracking parts, totes, and cartons in logistics and manufacturing.
To put that into broader context, organisations that standardise on 1D barcodes like UPC, EAN, Code 39, Code 128 and ITF often follow the global guidelines maintained by GS1. You can learn more about these code types and how they’re structured on the GS1 barcoding overview: 1D barcodes like UPC, EAN, Code 39, Code 128 and ITF.
Key characteristics of the SICK CLV420-0010 barcode scanner include:
- Mid-range optical design optimised for reading distances of roughly 60 mm to 365 mm.
- Fixed-focus optics tuned for standard barcode densities.
- Adjustable scan frequency between 400 and 1,200 scans per second to match conveyor or object speeds.
- Compact die-cast zinc housing with a robust environmental rating, allowing the SICK CLV420-0010 barcode scanner to withstand dust and water spray.
Practically speaking, this means the SICK CLV420-0010 barcode scanner is ideal when barcodes are consistently positioned within a known distance window—such as on the side of boxes traveling along a conveyor or on fixed jigs within a machine.
Core Technical Specifications of the SICK CLV420-0010 Barcode Scanner
To understand where the SICK CLV420-0010 barcode scanner fits in your application, it helps to look at its technical specifications in more detail.
Optical performance
The optical system of the SICK CLV420-0010 barcode scanner is designed for a balance of speed, robustness, and ease of use:
- Scanning frequency: 400–1,200 Hz (scans per second), adjustable via configuration.
- Code resolution: 0.2 mm to 1.0 mm (approx. 7.9–39 mils).
- Reading distance: approx. 60 mm to 365 mm, depending on barcode size and quality.
- Aperture angle: ≤ 50°, defining the spread of the scan line across the target area.
- Light source: Visible red Class 2 laser per IEC/EN 60825-1.
These values mean the SICK CLV420-0010 barcode scanner can comfortably read most packaging barcodes and industrial labels, even on fairly fast conveyors. Smaller barcodes with finer modules require mounting closer to the scanner, while larger barcodes can be positioned toward the upper end of the reading range.
Electrical and power characteristics
From a power and wiring perspective, the SICK CLV420-0010 barcode scanner is straightforward to integrate:
- Supply voltage: 10–30 V DC (Protection Class III, SELV).
- Power consumption: ~3.5 W max.
- Typical interface: 15-pin high-density D-Sub male connector with an attached 0.9 m cable.
The low power draw and simple DC supply make it easy to integrate the SICK CLV420-0010 barcode scanner into existing control cabinets and field wiring, even in retrofit scenarios.
Physical robustness and environmental ratings
Built for industrial environments, the SICK CLV420-0010 barcode scanner features:
- Housing material: Die-cast zinc alloy in SICK’s signature light blue.
- Compact dimensions: Approx. 59 × 62.7 × 35.2 mm (L × W × H).
- Weight: Roughly 250 g including cable.
- Environmental protection: The SICK CLV420-0010 barcode scanner carries an IP65 rating, meaning it is dust-tight and protected against low-pressure water jets from any direction.
- Operating temperature: 0 °C to +40 °C (with storage temperature typically wider).
- Humidity: Up to 90% non-condensing.
- Vibration & shock: Tested to industrial EMC and mechanical standards.
In practical terms, an IP65-rated SICK CLV420-0010 barcode scanner can live close to the action—on conveyors, within machine frames, or near heavy equipment—without sacrificing reliability or long service life.
Why the SICK CLV420-0010 Barcode Scanner Still Delivers in Modern Lines
One of the main reasons the SICK CLV420-0010 barcode scanner has had such a long life in the field is its impressive optical performance for a mid-range device.
Because the SICK CLV420-0010 barcode scanner can operate at up to 1,200 scans per second, it captures multiple scans of the same barcode as it moves through the beam, even at relatively high transport speeds. This dramatically increases the probability of a successful read, especially in applications where barcodes may be slightly skewed, partially damaged, or printed on challenging surfaces.
Other optical advantages of the SICK CLV420-0010 barcode scanner include:
- Robust decoding of multiple symbologies: It can autodiscriminate between several 1D barcode types.
- Multi-code reading capability: The scanner can read multiple barcodes in a single interval—depending on configuration.
- Print contrast tolerance: It typically requires a minimum print contrast of around 60% PCS, which covers the majority of standard label and packaging barcodes.
In practice, this means that when properly mounted and configured, the SICK CLV420-0010 barcode scanner can maintain high read rates in real production environments, not just in ideal lab conditions. This is why many operators still trust the SICK CLV420-0010 barcode scanner for 24/7 operations.
Connectivity and Integration Options for the SICK CLV420-0010 Barcode Scanner
From a controls and automation perspective, the SICK CLV420-0010 barcode scanner offers flexible connectivity to fit into different architectures, whether you’re working with serial communications or fieldbus networks.
Standard interfaces
Out of the box, the SICK CLV420-0010 barcode scanner typically supports:
- Serial communication: RS-232, RS-422, or RS-485 host interfaces for point-to-point or multi-drop connections.
- SICK CAN Sensor Network: CAN-based networking for multi-scanner setups or integration with PLCs that support CAN.
- Digital I/O: 2 digital inputs (e.g. for triggers or selection signals) and 2 digital outputs (e.g. for “good read,” “no read,” or system status).
These built-in options allow the SICK CLV420-0010 barcode scanner to be used in simple configurations—like a single scanner connected directly to a PLC serial port—or in more complex networks where multiple scanners share data.
Fieldbus gateways and higher-level integration
To integrate with modern industrial networks, the SICK CLV420-0010 barcode scanner can be paired with SICK fieldbus gateways such as the CMF400 series. These external modules convert the scanner’s serial output into fieldbus protocols like:
- Profibus DP
- DeviceNet
- Ethernet/IP
- PROFINET
This modular approach means you can keep using the SICK CLV420-0010 barcode scanner even as you upgrade your control system backbone. You can, for example, move from a simple serial-based system to an Ethernet/IP architecture without discarding the scanner—just by adding the appropriate gateway.
Configuration tools and cloning
Configuration of the SICK CLV420-0010 barcode scanner is handled via SICK’s PC-based tools such as CLV Setup or SOPAS. Parameters like symbology selection, baud rate, trigger modes, and filtering are all set in software.
A standout feature is the cloning or parameter memory option: configuration data can be stored in an external plug or memory module. If a SICK CLV420-0010 barcode scanner fails, a replacement unit can automatically load the same settings from the memory device. This dramatically reduces downtime and keeps your line running with minimal disruption.
Compliance, Safety, and Reliability of the SICK CLV420-0010 Barcode Scanner
In regulated industrial environments, certifications and safety ratings matter. The SICK CLV420-0010 barcode scanner is designed with these requirements in mind.
Laser and electrical safety
- Laser class: The SICK CLV420-0010 barcode scanner uses a Class 2 laser under IEC/EN 60825-1 (Class II under FDA/CDRH in the U.S.). This means it employs a low-power visible laser, and brief accidental exposure is safeguarded by the natural blink reflex—though direct staring into the beam should always be avoided.
- Protection Class III / SELV: The scanner is powered by Safety Extra Low Voltage (10–30 V DC), with no direct mains connection, improving operator safety.
EMC and global approvals
The SICK CLV420-0010 barcode scanner is typically CE-marked for compliance with European EMC and safety directives, and may carry UL/cUL listing for North American markets when used with an appropriate Class 2 power source. This allows deployment of the SICK CLV420-0010 barcode scanner in industrial plants around the world while meeting key safety and EMC requirements.
Industrial durability
With an IP65 housing, robust zinc construction, and tested vibration/shock tolerance, the SICK CLV420-0010 barcode scanner is designed to survive the realities of production environments—dust, occasional water spray, mechanical vibration, and incidental knocks.
An MTBF (Mean Time Between Failures) of around 20,000 hours underscores the long service life you can expect from a properly installed SICK CLV420-0010 barcode scanner, especially when combined with basic preventive maintenance.
Alternative Models and Successors to the SICK CLV420-0010 Barcode Scanner
Although the SICK CLV420-0010 barcode scanner is discontinued, it sits within a broader family of devices with overlapping features and capabilities. Understanding these alternatives is essential when planning upgrades or replacements.
Other members of the CLV42x family
- CLV421 (Long Range) – This sibling of the SICK CLV420-0010 barcode scanner was designed for longer reading distances, making it suitable for applications where scanners must be mounted further from the product flow.
- CLV422 (High Density) – Optimised for very small, dense barcodes (e.g. electronics or pharmaceutical labels), trading maximum reading distance for higher optical resolution.
These variants share many mechanical and electrical similarities with the SICK CLV420-0010 barcode scanner, making them natural alternatives in certain use cases.
Next-generation replacements
When SICK phased out the SICK CLV420-0010 barcode scanner, newer series like the CLV62x and CLV63x were introduced. These offer:
- Higher scan rates (often up to ~2,000 Hz).
- Improved decoding algorithms.
- Native Ethernet and modern fieldbus interfaces.
- More powerful configuration and diagnostics.
For new system designs, SICK typically recommends selecting one of these current models that best matches the range and resolution of the SICK CLV420-0010 barcode scanner. However, for installed bases where a direct swap is needed, many users still look for the original SICK CLV420-0010 barcode scanner or refurbished units to maintain continuity without re-engineering the entire system.
Mounting and Installation Best Practices for the SICK CLV420-0010 Barcode Scanner
Even the best hardware can underperform if it’s not installed correctly. To get the most out of a SICK CLV420-0010 barcode scanner, careful attention to mounting, orientation, and distance is crucial.
Mechanical mounting considerations
The SICK CLV420-0010 barcode scanner includes threaded mounting points for M4 screws. SICK’s dedicated mounting brackets (such as part number 2020077, depending on region) are designed to secure the scanner while allowing fine adjustment. Using these brackets, you can:
- Fix the SICK CLV420-0010 barcode scanner solidly to a conveyor frame or machine structure.
- Adjust tilt by roughly ±15°, which helps refine the scan line position and angle.
Using appropriate screw length, a rigid mounting surface, and correct torque ensures that vibration doesn’t cause misalignment over time.
Orientation and angle
It may be tempting to point the SICK CLV420-0010 barcode scanner straight at the barcode surface, but a slight angle is usually better. Tilting the scanner or barcode by about 10–15° (skew or pitch) helps prevent specular reflections, where the laser beam bounces straight back into the optics, potentially causing glare and poor reads.
By angling the SICK CLV420-0010 barcode scanner and lining up the scan line so it fully crosses the barcode at the target distance, you significantly improve reliability—especially on glossy packaging films or coated labels.
Reading distance and focus
Since it has fixed-focus optics, you should mount the SICK CLV420-0010 barcode scanner at a distance where your barcodes fall comfortably within the specified reading range of 60–365 mm:
- For small barcodes (around 0.2 mm module width), keep the SICK CLV420-0010 barcode scanner toward the lower end of the range.
- For larger label barcodes (~1.0 mm modules), you can position the scanner closer to the maximum range.
If distance varies a lot, consider whether a different CLV variant or more advanced scanner might be more forgiving—but for many conveyor and machine setups, the SICK CLV420-0010 barcode scanner is spot-on.
Triggering and reflector polling
You can trigger the SICK CLV420-0010 barcode scanner in several ways:
- Via an external photoelectric sensor feeding a digital input.
- Using SICK’s reflector polling mode, where a retro-reflector is placed opposite the scanner.
In reflector polling, the SICK CLV420-0010 barcode scanner continuously monitors the reflector. When a product passes through and blocks the beam, the scanner automatically starts reading. This can simplify installation by eliminating a separate trigger sensor.
Commissioning and maintenance
During start-up, power up the SICK CLV420-0010 barcode scanner, connect it to your PC or control system, and use SICK’s configuration software to:
- Run Auto Setup with sample barcodes.
- Set symbologies, communication settings, and timing.
- Verify status via LEDs (Device Ready, Laser On, Result, Data) and optional beeper feedback.
Maintenance is straightforward: periodically clean the front window of the SICK CLV420-0010 barcode scanner with a soft, lint-free cloth and ensure the mount remains tight. In harsher environments, checking cable strain relief and connector integrity helps preserve its IP65 performance.
Real-World Applications of the SICK CLV420-0010 Barcode Scanner
The best way to understand the value of the SICK CLV420-0010 barcode scanner is to see how it’s used in real industries.
Material handling and logistics
On conveyor systems in warehouses and distribution centres, the SICK CLV420-0010 barcode scanner is often installed at key checkpoints:
- Scanning cartons as they enter sorting lanes.
- Reading shipping labels for automated routing.
- Capturing tote IDs at merge or divert points.
Because the SICK CLV420-0010 barcode scanner can scan at up to 1,200 Hz, it can comfortably handle high-speed lines, ensuring packages are identified accurately even when moving quickly.
Manufacturing and production lines
In manufacturing plants, the SICK CLV420-0010 barcode scanner supports:
- Work-in-progress tracking by scanning barcodes on subassemblies or pallets.
- Verification of product IDs before critical process steps.
- Reading date or lot codes on packaging for traceability and quality assurance.
The rugged housing, environmental protection, and vibration tolerance mean the SICK CLV420-0010 barcode scanner can be mounted close to machinery—such as near stamping presses, filling lines, or packaging stations—without compromising reliability.
Inventory management and automated storage
For inventory control, the SICK CLV420-0010 barcode scanner can be placed at infeed/outfeed points of storage areas, carousels, or automated warehouses:
- As boxes pass under the SICK CLV420-0010 barcode scanner, their IDs are captured and sent to the WMS or ERP system.
- Accurately tracking stock movements reduces shrinkage and misplacements and supports real-time inventory views.
Continuous, 24/7 operation is exactly the type of duty cycle the SICK CLV420-0010 barcode scanner was built to handle.
Quality control and traceability
In regulated industries such as pharmaceuticals and food, traceability is critical. Here, the SICK CLV420-0010 barcode scanner (or a high-density sibling) may be used to:
- Verify the presence and correctness of Pharmacode or EAN codes on packaging.
- Confirm that printed or labelled barcodes are readable before products leave the line.
By integrating the SICK CLV420-0010 barcode scanner with PLCs or databases, manufacturers can build an audit trail of every product, from production through to shipping.
Transportation hubs and multi-scanner tunnels
In postal sorting centres or courier hubs, multiple scanners are often arranged in a tunnel configuration to read packages from several sides. The SICK CLV420-0010 barcode scanner, thanks to its networking capability, can participate in such multi-scanner systems, sharing data and synchronising reads.
In these environments, the SICK CLV420-0010 barcode scanner contributes to high throughput and fewer manual interventions by ensuring that barcodes are captured from at least one side of each parcel.
Conclusion: Keeping Your Lines Running with the SICK CLV420-0010 Barcode Scanner
Whether the SICK CLV420-0010 barcode scanner is the right fit for you depends on your specific goals and constraints:
- If you are maintaining or expanding an existing line built around CLV42x devices, sticking with the SICK CLV420-0010 barcode scanner (or compatible variants) can minimise re-engineering, as mounting, wiring, and PLC logic may already be tailored to this model.
- If you need a compact, rugged 1D scanner for mid-range distances, and you value proven reliability over the latest features, the SICK CLV420-0010 barcode scanner remains a compelling option—especially when sourced from a trusted industrial supplier.
- If you’re designing a new system from scratch, you may want to evaluate SICK’s modern successors (such as the CLV62x/63x series) which build on the strengths of the SICK CLV420-0010 barcode scanner while adding native Ethernet and more advanced capabilities.
For teams supporting installed bases, it’s reassuring to know that the SICK CLV420-0010 barcode scanner still has strong documentation, compatible accessories, and a long track record in thousands of industrial environments.
If you’re evaluating options or planning a maintenance replacement, you can learn more and review practical usage information on the dedicated Industrial Electrical Warehouse product page: SICK CLV420-0010 barcode scanner →. Exploring this page is a low-friction way to confirm technical details, compatibility, and availability before making a decision for your line.
Related Product Collections for the SICK CLV420-0010 Barcode Scanner
If you’re working with the SICK CLV420-0010 barcode scanner, chances are you also need associated sensors and control hardware to complete your setup. These related collections from Industrial Electrical Warehouse can help you build a cohesive, reliable system:
-
SICK Sensors Collection ➜
Explore a wide range of SICK devices, including barcode scanners, photoelectric sensors, proximity sensors, and more. Ideal if you’re standardising on SICK for sensing and want compatible components alongside your SICK CLV420-0010 barcode scanner. -
Contrast Scanner Collection ➜
Discover SICK and other-brand contrast scanners for detecting registration marks, labels, and print contrasts on fast-moving packaging. A natural companion to the SICK CLV420-0010 barcode scanner in print-and-apply or packaging lines where both barcodes and contrast marks must be controlled. -
Automation & PLC’s Collection ➜
Browse PLCs, I/O modules, communication adapters, and other automation hardware that barcode scanners commonly integrate with. This collection helps you design or upgrade the control backbone that the SICK CLV420-0010 barcode scanner feeds data into.
By pairing the SICK CLV420-0010 barcode scanner with compatible sensors and robust automation hardware, you can unlock more reliable identification, smoother control, and better long-term maintainability across your entire production or logistics line.
