Extech EX410, EX411 Operating Manual

User's Guide

Manual Ranging Multimeter

Extech 410

Introduction

Congratulations on your purchase of the Extech 410 (part number EX410) Multimeter. This meter measures AC/DC Voltage, AC/DC Current, Resistance, Diode Test, and Continuity plus Thermocouple Temperature. Proper use and care of this meter will provide many years of reliable service.

Safety

This symbol adjacent to another symbol, terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to the meter.

WARNING

CAUTION

MAX 1000V

This WARNING symbol indicates a potentially hazardous situation, which if not avoided, could result in death or serious injury.

This CAUTION symbol indicates a potentially hazardous situation, which if not avoided, may result damage to the product.

This symbol advises the user that the terminal(s) so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds (in this case) 1000 VAC or VDC.

This symbol adjacent to one or more terminals identifies them as being associated with ranges that may, in normal use, be subjected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be handled when these terminals are energized.

This symbol indicates that a device is protected throughout by double insulation or reinforced insulation.

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OVERVOLTAGE CATEGORY III

This meter meets the IEC 610-1-95 standard for OVERVOLTAGE CATEGORY III. Cat III meters are protected against overvoltage transients in fixed installation at the distribution level. Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation.

SAFETY INSTRUCTIONS

This meter has been designed for safe use, but must be operated with caution. The rules listed below must be carefully followed for safe operation.

1. NEVER apply voltage or current to the meter that exceeds the

specified maximum:

Function Maximum Input VAC 750V DC/AC V DC or V AC 1000V DC/AC, 200Vrms on 200mV range mA DC 200mA 250V fast acting fuse A DC 20A 250V fast acting fuse(30 seconds max

Ohms, Continuity 250Vrms for 15sec max

2. USE EXTREME CAUTION when working with high voltages.

3. DO NOT measure voltage if the voltage on the "COM" input

jack exceeds 600V above earth ground.

4. NEVER connect the meter leads across a voltage source

while the function switch is in the current, resistance, or diode mode. Doing so can damage the meter.

5. ALWAYS discharge filter capacitors in power supplies and

disconnect the power when making resistance or diode tests.

6. ALWAYS turn off the power and disconnect the test leads

before opening the covers to replace the fuse or battery.

7. NEVER operate the meter unless the back cover and the

battery and fuse covers are in place and fastened securely.

Input Protection Limits

every 15 minutes)

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Controls and Jacks

1. Rubber holster

2. 2000 count LCD display

3. Degrees F button

4. Degrees C button

5. Function switch

6. mA, uA and A input jacks

7. COM input jack

8. Positive input jack

9. Battery check button

10. Hold button

11. Backlight button

Note: Tilt stand and battery compartment are on rear of unit.

Symbols and Annunciators

•))) Continuity Diode test

Battery status

Test lead connection error

µ micro (10 m milli (10 k kilo (10 M mega (10 A Amps V Volts AC Alternating current AUTO Autoranging DC Direct current HOLD Display hold ºF Degrees Fahrenheit ºC Degrees Centigrade

-6

) (amps)

-3

) (volts, amps)

) (ohms)

) (ohms) Ω Ohms

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Specifications

Function Range DC Voltage (V DC)

200mV 0.1mV 2V 0.001V 200V 0.1V 1000V 1V

AC Voltage (V AC)

50 to 400Hz 400Hz to 1kHz 2V 0.001V

Resolution

±(0.3% reading + 2 digits)

±(0.5% reading + 2 digits)

±(0.8% reading + 2 digits)

±(1.0% reading

DC Current (A DC)

AC Current (A AC)

200V 0.1V

750V 1V

200µA 0.1µA 200mA 0.1mA 20A 0.01A 50 to 400Hz 400Hz to 1kHz 200mA 0.1mA

±(1.5% reading

±(2.0% reading

±(1.5% reading + 3 digits)

±(2.5% reading + 3 digits)

±(1.8% reading

Resistance

20A 0.01A

200Ω 0.1Ω ±(0.8% reading +4 digits)

±(3.0% reading

2000Ω 1Ω ±(0.8% reading +2 digits) 20kΩ 0.01kΩ 200kΩ 0.1kΩ

±(1.0% reading +2 digits)

20MΩ 0.01MΩ ±(2.0% reading +5 digits)

-4 to

1382ºF

-20 to

750ºC

1ºF Temperature

1ºC

±(3.0% reading +3 digits) (meter only, probe accuracy not included)

NOTE: Accuracy specifications consist of two elements:

• (% reading) – This is the accuracy of the measurement circuit.

• (+ digits) – This is the accuracy of the analog to digital converter.

NOTE: Accuracy is stated at 65

F to 83oF (18oC to 28oC) and less

than 75% RH.

+6 digits

+8 digits

+8 digits)

Accuracy

±(2.0% reading

+ 8 digits

±(2.5% reading

+8 digits

±(3.0% reading

+8 digits

±(2.5% reading

+10 digits)

±(3.5% reading

+10 digits)

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Specifications

Diode Test Test current of 1mA maximum, open

circuit voltage 2.8V DC typical

Continuity Check Audible signal will sound if the

resistance is less than approximately 150Ω

Input Impedance 10MΩ AC Response Average responding ACV Bandwidth 50Hz to 1kHz DCA voltage drop 200mV Display 3 ½ digit, 2000 count LCD, 0.9”

digits

Auto-Power Off 15 minutes (approximately) Overrange indication “1” is displayed Polarity Automatic (no indication for positive

polarity); Minus (-) sign for negative polarity.

Measurement Rate 2 times per second, nominal Low Battery Indication “ ” is displayed if battery voltage

drops below operating voltage

Battery One 9 volt (NEDA 1604) battery Fuses mA, µA ranges; 0.2A/250V fast blow

A range; 20A/250V ceramic fast blow

Operating Temperature 41ºF to 104ºF (5ºC to 40ºC) Storage Temperature -4

F to 140oF (-20oC to 60oC)

Operating Humidity Max 80% up to 87ºF (31ºC)

decreasing linearly to 50% at 104ºF (40ºC)

Storage Humidity <80% Operating Altitude 7000ft. (2000meters) maximum.

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