Description

UNI-T UT205B 1000A AC Clamp Meter

The UNI-T UT205B is a high-performance, versatile clamp meter designed to meet the demanding needs of electricians, technicians, and power system professionals. With capability to handle up to 1000A AC current, this meter blends robustness, accuracy, and useful features — making it a reliable tool for maintenance, diagnostics, troubleshooting, and industrial applications.

Robust Measurement Capabilities

• 1000A AC Current Measurement with accuracy of ±(1.5% + 5)

• AC Voltage / DC Voltage up to 1000V, with accuracy ±(1.0% + 2) for AC and ±(0.8% + 2) for DC

• Resistance up to 40 MΩ, capacitance up to 40 mF, and frequency from 10 Hz to 10 MHz

• Duty cycle, continuity, diode test, max/min capture, and relative mode are also supported

These multiple measurement modes make the UT205B suitable not only for current and voltage testing but also for diagnosing circuit components, measuring signal frequencies, and checking capacitors and resistors.

Design & Physical Features

• The clamp jaw opens to 60 mm, enabling measurement on larger conductors and bundles. The clamp itself is ~55 mm in size.

• It uses an air-core coil in the clamp head, which helps keep weight down and improves portability.

• The meter offers a backlit LCD display (approx. 42 × 30 mm) for readings in low light, plus a built-in flashlight for working in dark environments.

• Auto power-off (after ~15 minutes) helps conserve battery life.

• Low battery indication, data hold, and max/min memory are included to enhance usability.

• Safety ratings: CAT II 1000V / CAT III 600V, which makes it suitable for many types of electrical work.

Applications & Use Scenarios

The UT205B is ideal where reliable current and voltage measurements are needed under varying conditions:

• Industrial maintenance and fault diagnostics

• Electrical panels, wiring installation checks

• HVAC systems and motor diagnostics

• Power distribution, control systems, and panel testing

• Repair shops and field service work

Its combination of compact form, broad measurement range, and handy features like flashlight/backlit display make it especially useful in live systems, tight enclosures, or poorly lit locations.

Pros & Potential Limitations

Pros

• Wide range (up to 1000A) covers heavy-duty applications

• Multiple measurement modes beyond just current and voltage

• Good user features (hold, max/min, auto-off, backlit + flashlight)

• Relatively lightweight thanks to air-core design

• Decent safety category for many professional tasks

Things to Consider

• It is an AC clamp meter; DC current measurement beyond AC may not be supported (verify model version)

• While very capable, accuracy at full scale might degrade (per ± tolerances)

• As always with clamp meters, external electromagnetic interference, conductor geometry, and nearby conductors may affect reading accuracy

• For extremely high-precision laboratory work, more specialized equipment may be needed

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Technical Spec Summary / Table