Extech Instruments EX411A Manuale utente

®



INSTRUMENTS





   

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

TestEquipmentDepot.com

Introduction

 

  

  

Safet

International Safety Symbols



WARNING 

CAUTION 

rMAX

_soov

  



 





WARNING 

    

CAUTION 

  

  





  

EX411A-en-GB_v5.0 6/16

CAUTIONS

Improper use of this meter can cause damage, shock, injury or death. Read and understand

this user manual before operating the meter.

Always remove the test leads before replacing the battery or fuses.

Inspect the condition of the test leads and the meter itself for any damage before operating the

meter. Repair or replace any damage before use.

Use great care when making measurements if the voltages are greater than 25VAC rms or

35VDC. These voltages are considered a shock hazard.

Warning! This is a class A equipment. This equipment can cause interference to devices in the

home; in this case the operator can be required to carry out adequate measures to prevent

interference.

Always discharge capacitors and remove power from the device under test before performing

Diode, Resistance or Continuity tests.

Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty

of connection to the recessed electrical contacts. Other means should be used to ensure that

the terminals are not "live".

If the equipment is used in a manner not specified by the manufacturer, the protection provided

by the equipment may be impaired.

This device is not a toy and must not reach children’s hands. It contains hazardous objects as

well as small parts that children could swallow. In case a child swallows any of the parts,

please contact a physician immediately.

Do not leave batteries and packing material unattended; they can be dangerous for children.

In case the device is going to be unused for an extended period of time, remove the batteries

to prevent them from draining.

Expired or damaged batteries can cause cauterization on contact with skin. Always use

suitable hand protection.

See that the batteries are not short-circuited. Do not throw batteries into fire.

EX411A-en-GB_v5.0 6/16

OVERVOLTAGE CATEGORY III

This meter meets the IEC 61010-1 (EN61010-1) 3rd edition (2010) 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:

Input Protection Limits

Function Maximum Input

V DC or V AC 600V DC/AC, 200Vrms on 200mV range

mA DC 200mA 600V fast acting fuse

A DC 10A 600V fast acting fuse (30 seconds max every 15 minutes)

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 cover is in place and fastened

securely.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

TestEquipmentDepot.com







 

  



 

 







 



 

 

 



 









 

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

TestEquipmentDepot.com

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