Extech Instruments EX810 User Manual

EX800 Series Version 3.1 6/05 10
8”
3”
1”
4”
24”
0.5”
(10cm)
(1.25cm)
(20cm)
(2.5cm)
(60cm)
(7.5cm)
Distance to object
Diameter of spot
Non-Contact InfraRed Temperature Measurements
1. Set the function switch to the IR Temp
position.
2. Aim the infrared sensor (rear of the meter) at
the surface to be measured.
3. Press the button in the center of the rotary
function switch to turn on the laser pointer and
identify the surface spot to be measured.
4. The area of the surface to be measured must
be larger than the spot size as determined by
the distance to spot size specification.
5. Read the temperature in the display.
Note: See the “Temperature Units” paragraph to select
o
F or
o
C
WARNING: Do not directly view or direct the laser pointer at
an eye. Low power visible lasers do not normally present a
hazard, but may present some potential for hazard if viewed
directly for extended periods of time.
IR Spot to Distance Diagram
The 8:1 spot to distance ratio determines the size of the measured surface area with
respect to the distance the meter is held away from the surface.
IR Measurement Notes
1. The object under test should be larger than the spot (target) size calculated by the
field of view diagram.
2. If the surface of the object under test is covered with frost, oil, grime, etc., clean
before taking measurements.
3. If an object's surface is highly reflective, apply masking tape or flat black paint to the
surface before measuring.
4. The meter may not make accurate measurements through transparent surfaces such
as glass.
5. Steam, dust, smoke, etc. can obscure measurements.
6. To find a hot spot, aim the meter outside the area of interest then scan across (in an
up and down motion) until the hot spot is located.

Extech Instruments EX810 Specifications

General

Max Voltage (AC/DC)	1000V
Diode Test	Yes
Data Hold	Yes
Auto Power Off	Yes
Continuity	Yes
Auto Ranging	Yes
Power Supply	9V battery
Type	Digital
Display	LCD
Capacitance Measurement	Yes
Frequency Measurement	Yes
Frequency Range	10MHz
Weight	350g

Summary

Introduction

EX800 Series Models

Lists EX810, EX820, EX830 clamp meters and their basic functions.

Common Measurement Capabilities

Details the standard measurement functions available on all EX800 series clamp meters.

Key EX800 Series Features

Highlights the main operational features of the EX800 series clamp meters.

Safety Information

International Safety Symbols

Explains the meaning of standard safety symbols used with the meter.

Safety Notes and Warnings

Provides crucial safety instructions and warnings for correct meter operation.

Important Cautions

Lists precautions to prevent damage to the meter or personal injury.

Product Description

Meter Component Overview

Identifies and describes the physical parts of the EX830 clamp meter.

LCD Display Icons

Explains the meaning of various symbols displayed on the meter's LCD.

Specifications

Accuracy Specifications

Details the accuracy ratings for different functions and models.

General Specifications

Covers clamp jaw size, display type, measurement rate, and operating environment.

Operation and Measurement

AC/DC Current Measurement

Step-by-step guide for measuring AC and DC current with the clamp.

DCA Zero Function

How to use the DC Zero feature for accurate DC current readings.

AC/DC Voltage Measurement

Instructions for performing AC and DC voltage measurements.

Resistance Measurement

Procedure for measuring resistance values using the meter.

Capacitance Measurement

How to measure capacitance, including capacitor discharge warning.

Frequency Measurement

Steps for measuring signal frequency with the clamp meter.

Type K Temperature Measurement

Guide for taking temperature readings using a Type K thermocouple.

Continuity Test

Instructions for checking electrical continuity in circuits.

Diode Test

How to test diodes and semiconductor junctions.

InfraRed Temperature Measurement

Procedure for using the non-contact IR temperature function.

Data Hold, Peak Hold, MAX/MIN

Explains how to use data hold, peak capture, and max/min recording features.

Display Backlight & Auto Power OFF

How to activate the LCD backlight and manage the auto power off feature.

Maintenance

Cleaning and Storage

Guidelines for properly cleaning and storing the clamp meter.

Battery Replacement

Step-by-step instructions for replacing the meter's battery.

Temperature Probe Replacement

Information on replacing the Type K thermocouple probe.

Warranty & Services

Product Warranty Information

Details Extech's warranty terms and conditions for the instrument.

Calibration and Repair Services

Information on obtaining calibration and repair services for the meter.