Extech 470 True RMS Multimeter plus IR Thermometer User's Guide

About this manual

The Extech 470 is a True RMS Autoranging Multimeter plus IR Thermometer designed to measure AC/DC Voltage, Current, Resistance, Capacitance, Frequency, Duty Cycle, Diode Test, Continuity, and Temperature. It features a 4000 count LCD display, selectable input jacks for different current ranges (uA, mA, A), and a non-contact IR thermometer with a laser pointer.

What's inside

• Introduction
• Safety Instructions
• Controls and Jacks
• DC Voltage Measurements
• AC Voltage Measurements
• DC Current Measurements
• AC Current Measurements
• Resistance Measurements

Frequently asked questions

What is the maximum input voltage for DC or AC?

The maximum input protection limit is 1000VDC/750VAC.

How long can I measure current on the 20A scale?

Do not make current measurements on the 20A scale for longer than 30 seconds.

What does 'OL' indicate in the display?

'OL' appears when the measured value exceeds the selected range.