Field Instruments

The Hioki 3288-20 Clamp On Meter is a compact and high-performance True RMS AC/DC clamp multimeter, designed for accurate measurement of electrical parameters in industrial, commercial, and maintenance applications. Built with Hioki’s advanced sensing technology, it allows safe, non-contact current measurement even in tight wiring environments.

Unlike the standard 3288 model, the 3288-20 features True RMS measurement, ensuring precise readings even for distorted waveforms commonly found in modern electrical systems such as inverters, UPS systems, and variable-speed drives.

With its slim jaw design, multi-function capability, and rugged construction, the 3288-20 is ideal for electricians and technicians who require reliability and accuracy in the field.

Key Features

• True RMS measurement for accurate readings on non-linear loads
• Measures AC/DC current up to 1000 A
• Multi-function: Current, voltage, resistance, and continuity
• Slim and compact design for use in confined spaces
• Double lever clamp for improved accessibility
• Data hold and auto power-saving function
• Safe and reliable measurement without direct conductor contact
• Suitable for UPS systems, motors, and industrial applications

Technical Specifications

General Information

• Manufacturer: Hioki
• Model: 3288-20
• Type: AC/DC Clamp Meter (True RMS)

Current Measurement

• DC Current: 100 A / 1000 A
• AC Current: 100 A / 1000 A (10 Hz to 500 Hz, True RMS)
• Accuracy: ±1.5% rdg ±5 dgt

Voltage Measurement

• DC Voltage: 419.9 mV to 600 V
• AC Voltage: 4.199 V to 600 V (True RMS)
• Accuracy: ±1.3% (DC), ±2.3% (AC)

Resistance & Continuity

• Resistance Range: 419.9 Ω to 41.99 MΩ
• Continuity: Buzzer indication (≤50 Ω)

General Specifications

• Display: LCD, 4199 counts
• Jaw Diameter: 35 mm
• Dimensions: 57 × 180 × 16 mm
• Weight: Approx. 150 g
• Power Supply: CR2032 battery
• Battery Life: Approx. 35–60 hours
• Safety Rating: CAT III 600 V (Current), CAT III 300 V (Voltage)

Included Accessories

• Test leads (L9208)
• Carrying case (9398)
• Battery (CR2032)
• Instruction manual

Applications

• Electrical maintenance and troubleshooting
• Industrial equipment inspection
• UPS and battery system monitoring
• Motor and power distribution systems
• HVAC system diagnostics
• Field service and electrical installations

How It Works

1. Clamp – Place the jaw around the conductor
2. Select – Choose measurement mode (AC/DC current, voltage, etc.)
3. Measure – Read real-time values on the display
4. Analyze – Use accurate True RMS readings for diagnostics

Why Buy from FieldInstruments.lk?

• Genuine Hioki test and measurement instruments
• Competitive pricing with fast delivery across Sri Lanka
• Trusted supplier for industrial and electrical tools
• Professional technical support and after-sales service

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk