Extech Instruments EX310 Betriebsanweisung PDF herunterladen (Seite 3)

Model EX310-EU-ENG – V7.2– 05/2008

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 AC and DC

mA AC/DC 200mA DC/AC

A AC/DC 10A DC/AC (for 30 seconds max. every 15

mins.)

Resistance, Diode Test,

Continuity

250V DC/AC

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 power and disconnect 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.

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

provided by the equipment may be impaired.

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Extech Instruments EX310 Betriebsanweisung Seite 3