Industrial Tachometer Classic Instruments SN20

Description

Product Overview

The Classic Instruments SN20 is a handheld industrial tachometer designed for fast, accurate rotational speed measurement. Housed in a rugged ABS plastic shell, the device weighs just 0.48 ounces and measures 6 × 6 × 6 inches, making it easy to carry in a tool belt or pocket. It features a high‑contrast LCD that displays RPM values instantly, a built‑in laser pointer for precise targeting, and a rechargeable lithium‑ion battery that provides up to 20 hours of continuous use. The SN20 supports a measurement range of 0–30,000 RPM, suitable for a wide variety of motors, fans, and rotating equipment commonly found in industrial settings.

Usage

The SN20 excels in environments where quick, non‑contact speed verification is essential. Maintenance technicians can use it to check conveyor belt motors, HVAC fans, and pump shafts without disassembly. Production engineers benefit from real‑time monitoring during equipment start‑up and troubleshooting, ensuring machines operate within specified tolerances. Its compact size and laser aiming aid make it ideal for confined spaces such as electrical panels, machine enclosures, and field installations.

Why Choose Us

Classic Instruments has a reputation for precision engineering and durable tools. The SN20 is manufactured to ISO 9001 standards, guaranteeing consistent quality and performance. Each unit undergoes a calibrated test before shipping, and the device includes a two‑year warranty covering manufacturing defects. Unlike generic tachometers, the SN20 offers a laser guide for pinpoint targeting, a backlit display for low‑light conditions, and a battery life that outlasts most competitors, reducing the need for frequent recharging during long maintenance shifts.

Key Features

• Compact 6‑inch cubic design for easy portability and storage.
• Laser pointer for accurate, non‑contact measurement of rotating parts.
• Wide measurement range up to 30,000 RPM covering most industrial applications.
• High‑contrast LCD with backlight for clear reading in bright or dim environments.
• Rechargeable battery delivering up to 20 hours of continuous operation.

FAQ

What types of equipment can the SN20 measure?

The SN20 is suitable for any rotating equipment that can be accessed optically, including electric motors, fans, pumps, compressors, and conveyor rollers. Its 0–30,000 RPM range covers most industrial machinery.

How accurate is the SN20?

Factory‑calibrated to ±0.5% of reading, the SN20 provides reliable measurements for routine maintenance and troubleshooting. For critical applications, users can verify accuracy with a reference standard.

Can the device be used in harsh environments?

Yes. The ABS housing meets IP54 standards for dust resistance and splash protection, making it safe for use in workshops, factories, and outdoor field sites.

How long does the battery last and how is it charged?

The built‑in lithium‑ion battery supports up to 20 hours of continuous use. It charges via a standard micro‑USB cable; a full charge takes approximately 3 hours.

Is the SN20 compatible with data logging systems?

While the SN20 does not have built‑in data export, it can be paired with Classic Instruments’ optional Bluetooth adapter to transmit readings to a mobile app for logging and analysis.