Hioki 3129-10 PHASE DETECTOR Phase Rotation Meter

Description

Product Overview

The Hioki 3129-10 Phase Detector is engineered for professionals who require precise phase‑rotation verification on medium‑voltage circuits. Housed in a rugged ABS enclosure, the instrument is lightweight at just 0.8 pounds, making it easy to carry in a tool bag or pocket. Its battery‑powered design runs on two AAA cells, delivering reliable operation without the need for external power sources. The device measures voltage ranges from 70 V up to 1000 V, complying with IEC 61010‑1:2000‑1 and IEC 61326 safety standards.

One of the standout features is the green LED arrow that instantly indicates the direction of phase rotation, eliminating guesswork during troubleshooting. The arrow is illuminated by a foldable UV/white beam, allowing clear visibility even in dimly lit environments. The detector also includes non‑metallic, insulated clamps that safely attach to conductors with diameters between 10 mm and 40 mm, preventing accidental short circuits or damage to the wire insulation.

Additional specifications include a compact form factor of 1.18 × 2.76 × 2.95 inches, an LED display for easy reading, and a durable ABS clip system with a green arrow indicator for quick visual confirmation. The instrument meets professional-grade requirements and is suitable for a wide range of applications, from industrial power monitoring to routine field inspections.

Usage

The Hioki 3129-10 is designed for use in diverse electrical environments. Whether you are working in a manufacturing plant, a data center, or on a construction site, the detector provides rapid phase‑rotation assessment for three‑phase systems. Its compact size allows it to be easily clipped onto conduit or cable trays, and the battery operation ensures uninterrupted testing even in remote locations without access to mains power.

Typical use cases include verifying correct phase sequence before energizing equipment, troubleshooting motor failures caused by incorrect rotation, and confirming proper wiring during installation of new machinery. The device’s clear LED arrow simplifies documentation for compliance reports, and the UV/white beam assists in low‑light conditions such as basements or outdoor night work.

Because the clamps are non‑metallic, the detector can be safely applied to live conductors without risking accidental grounding. This makes it an essential tool for electricians, maintenance engineers, and safety inspectors who must adhere to strict industry standards while minimizing downtime.

Why Choose Us

Choosing the Hioki 3129-10 means selecting a product backed by a legacy of precision measurement and reliability. Hioki USA Corporation has a reputation for delivering high‑quality test equipment that meets international safety certifications. The Phase Detector’s design incorporates user‑centric features such as an intuitive LED display, ergonomic foldable beam, and robust ABS housing that resists drops and impacts common on job sites.

Our commitment to quality extends beyond the hardware. Each unit undergoes rigorous calibration and testing before shipment, ensuring that the phase‑rotation readings are accurate to industry tolerances. In addition, we provide comprehensive technical support, including online resources, downloadable manuals, and a responsive customer service team ready to assist with any operational questions.</n

We also offer a warranty that covers manufacturing defects, giving you confidence that your investment is protected. The combination of durable construction, precise measurement, and dedicated after‑sales service makes the Hioki 3129-10 a cost‑effective solution for long‑term field applications.

Key Features

• Green LED arrow provides instant visual confirmation of phase direction, reducing diagnostic time.
• Foldable UV/white beam ensures readability in dark or confined spaces, enhancing safety.
• Non‑metallic clamps grip 10‑40 mm insulated conductors without damaging the wire or causing shorts.
• Compact ABS housing is lightweight yet rugged, ideal for on‑site portability and drop resistance.
• Comes with dedicated technical support and warranty, guaranteeing reliable performance and peace of mind.

FAQ

What voltage range can the Hioki 3129-10 measure?

The detector operates safely on line voltages from 70 V up to 1000 V, making it suitable for most low‑ to medium‑voltage three‑phase systems encountered in industrial and commercial settings.

Do I need to purchase batteries separately?

The unit requires two AAA batteries for operation, but they are not included in the package. Standard alkaline or rechargeable AAA cells are compatible, and the low power consumption ensures long runtime between replacements.

Can the clamps be used on live conductors?

Yes. The clamps are made from non‑metallic, insulated material, allowing safe attachment to live wires without the risk of short‑circuiting or damaging the insulation. This feature is especially valuable for quick, on‑the‑fly measurements.

Is the device calibrated for international standards?

Absolutely. The Hioki 3129-10 complies with IEC 61010‑1:2000‑1 and IEC 61326 safety standards, ensuring that its measurements meet globally recognized accuracy and safety requirements.

What kind of support is available after purchase?

Hioki provides comprehensive after‑sales support, including a detailed user manual, online troubleshooting guides, and direct access to technical specialists via phone or email. A standard warranty covers manufacturing defects for added assurance.