EXTECH MA3110 [3/15] Safety information

MA3110-en-GB_V1.0 12/16

Safety Information

To ensure the safe operation and service of the meter, follow these instructions closely. Failure to

observe warnings can result in severe injury.

Precautions and Preparations for Measurements

 Ensure that the batteries are connected in the correct polarity and placed in the battery

compartment (rear) correctly.

 Place the red and black test leads into the proper input terminals before making

measurements.

 Remove the test leads from the circuit under test when changing the measurement ranges.

 Do not exceed the maximum rated voltage and current on the meter input terminals.

 Remove the battery if the meter is to be stored for long periods

 Replace the test leads only with ones rated for CAT III 1000V or better.

 The meter has an automatic power OFF (APO) utility that switches the meter OFF after 15

minutes of inactivity. Press any key to wake the meter. To disable this feature, press and

hold the M (mode) button while switching the meter ON.

Warnings

Warnings identify hazardous conditions and actions that could cause BODILY HARM or DEATH.

 Individual protective equipment should be used if HAZARDOUS LIVE parts in the installation

where measurements are to be carried out could be accessible.

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

provided by the equipment may be impaired.

 To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.

 Verify the meter operation by measuring a known current. If in doubt, have the meter

serviced.

 Do not apply more than the rated voltage/current as marked on the meter.

 To avoid false readings that can lead to electric shock and injury, replace battery as soon as

the low battery indicator appears.

 Do not use the meter in or around explosive gas or vapor.

 Do not use a flexible current sensor if the inner copper wire of the flexible cord is visible.

 De-energize the installation under test or wear suitable protective clothing when placing or

removing the flexible current probe from a test setup.

 Do not apply/remove the flexible current probe to/from UNINSULATED HAZARDOUS LIVE

conductors that may cause electric shock, electric burn, or arc flash.