🔧 UT281E+ 10000A Flex Clamp (True RMS)

UT281E+ is a high‑precision True RMS flexible (Rogowski) clamp meter designed for measuring very large currents in tight or hard‑to‑reach locations where rigid clamp jaws cannot fit. With a 6000‑count display and a flexible coil, it enables safe and convenient measurements up to 10,000 A AC.

✅ Typical applications: power & electrical engineering, manufacturing, petroleum, communications, smelting, and photovoltaic (PV) stations.

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✨ Key features

• 📟 6000‑count display, True RMS
• 🔁 AC current up to 10,000 A (auto‑ranging by level)
• ⚡ Inrush current (INRUSH) measurement up to 6000 A
• 🌀 1100 mm (43") flexible coil – wraps around large busbars/cable bundles
• 🎛️ Dual LCD display: AC V & Hz, AC A & Hz
• 🧪 Measures: AC/DC voltage, resistance, continuity, frequency, AC current, inrush
• 🛡️ Safety: CAT III 1000 V / CAT IV 600 V, compliant with IEC 61010‑1
• 🔔 Alarm prompts (over‑range, high‑voltage OL, low battery, etc.)
• 💡 Backlight, auto power‑off, data hold

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📊 Technical specifications (manufacturer data)

Note: Accuracy is shown in the manufacturer format ±(% + digits).

DC Voltage (DCV)

Range	Resolution	Accuracy
6.000 V	0.001 V	±(0.8% + 2)
60.00 V	0.01 V	±(0.8% + 2)
600.0 V	0.1 V	±(0.8% + 2)
1000 V	1 V	±(1.0% + 2)

AC Voltage (ACV)

Range	Resolution	Accuracy
6.000 V	0.001 V	±(1.0% + 3)
60.00 V	0.01 V	±(1.0% + 3)
600.0 V	0.1 V	±(1.0% + 3)
1000 V	1 V	±(1.2% + 3)

ACV frequency response: 45 Hz – 500 Hz

AC Current (ACA, via flexible coil)

Range	Resolution	Typical accuracy
9.99 A	0.01 A	±(2.0% + 5)
99.9 A	0.1 A	±(2.0% + 5)
999 A	1 A	±(2.5% + 5)
9.99 kA	0.01 kA	±(3.0% + 5)

ACA frequency response: 45 Hz – 500 Hz

Frequency

• Frequency (ACA): 10.0 Hz – 1000 Hz, 0.1 Hz, accuracy ±(0.5% + 3)
• Frequency (ACV): 10.0 Hz – 30.0 kHz, 0.1 Hz, accuracy ±(0.5% + 3)

Inrush current (INRUSH)

Range	Resolution	Accuracy
100.0 A	0.1 A	±10.0%
6000 A	1 A	±10.0%

Resistance / Continuity

Range	Resolution	Accuracy
600.0 Ω	0.1 Ω	±(1.0% + 5)
6.000 kΩ	0.001 kΩ	±(1.0% + 5)
60.00 kΩ	0.01 kΩ	±(1.0% + 5)
600.0 kΩ	0.1 kΩ	±(1.0% + 5)
6.000 MΩ	0.001 MΩ	±(2.0% + 5)
60.00 MΩ	0.01 MΩ	±(2.5% + 5)

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🧩 Functions & usability

• 🧠 Data storage: up to 999 sets
• 📌 Data hold, data review & delete
• 🌙 Backlight
• ⏻ Auto power‑off
• 📉 Low‑voltage/battery indication
• 🚨 Over‑range and high‑voltage OL alarms

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🛡️ Safety & compliance

• Safety rating: CAT III 1000 V / CAT IV 600 V
• Standard: IEC 61010‑1
• Certifications: CE, cETLus, RoHS
• Energy impact withstand: up to 1000 V (30 kVA)

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🌡️ Operating conditions & power

• Operating temperature: 0 °C – 40 °C
• Storage temperature: -10 °C – 50 °C
• Humidity: < 75% RH
• Power supply: 3 × AAA 1.5 V batteries

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🌀 Flexible sensor

• Coil length: 1100 mm (43")

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