Metrel MD 9040 Digital-Multimeter, DMM, 20991440 Fiche De Données

Codes de produits
20991440
Page de 46
MD 9040 & MD 9050 Digital multimeter 
Safety/Cenelec directives 
 
5 
WARNING  
To reduce the risk of fire or electric shock, do not expose this product to rain or 
moisture. To avoid electrical shock hazard, observe the proper safety precautions when 
working with voltages above 60 VDC or 30 VAC rms. These voltage levels pose a 
potential shock hazard to the user. Do not touch test lead tips or the circuit being tested 
while power is applied to the circuit being measured. Keep your fingers behind the 
finger guards of the test leads during measurement. Inspect test leads, connectors, and 
probes for damaged insulation or exposed metal before using the instrument. If any 
defects are found, replace them immediately. Do not measure any current that exceeds 
the current rating of the protection fuse. Do not attempt a current measurement to any 
circuit where the open circuit voltage is above the protection fuse voltage rating. 
Suspected open circuit voltage should be checked with voltage functions. Never attempt 
a voltage measurement with the test lead inserted into the 
A/mA or A input jack. Only 
replace the blown fuse with the proper rating as specified in this manual. 
 
CAUTION 
Disconnect the test leads from the test points before changing functions. Always set the 
instrument to the highest range and work downward for an unknown value when using 
manual ranging mode. 
 
INTERNATIONAL ELECTRICAL SYMBOLS 
 
!
 
Caution !  Refer to the explanation in this Manual 
 
 
Caution !  Risk of electric shock 
 
 Earth 
(Ground) 
 
 
Double Insulation or Reinforced insulation 
 
 Fuse 
 
 AC--Alternating 
Current 
 
 DC--Direct 
Current 
 
 
2 Cenelec directives 
The instruments conform to CENELEC Low-voltage directive 2006/95/EC and 
Electromagnetic compatibility directive 2004/108/EC