FLIR Commercial Systems Inc. MG300 Manuale Utente

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3                                                   MG300-EN V2.0   4/11 
 
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 
1000VDC/AC rms 
mA AC/DC 
500mA 1000V fast acting fuse 
A AC/DC 
10A 1000V fast acting fuse (20A for 30 seconds max 
every 15 minutes) 
Frequency, Resistance, Capacitance, 
Duty Cycle, Diode Test, Continuity 
1000VDC/AC rms 
Temperature 1000VDC/AC 
rms 
Surge Protection: 8kV peak per IEC 61010 
2. 
USE EXTREME CAUTION when working with high voltages. 
3. 
DO NOT measure voltage if the voltage on the "COM" input jack exceeds 1000V 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 batteries. 
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.