FLIR Commercial Systems Inc. EX540 Manuale Utente

2                                             EX540  V1.0   2/09 

 

This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency 

(electrical & electronic), Duty Cycle, Diode Test, and Continuity plus Thermocouple 

Temperature. It can store and recall data. It features a waterproof, rugged design for heavy 

duty use. This meter can transmit data wirelessly when linked to a PC. Proper use and care 

of this meter will provide many years of reliable service. 

This symbol adjacent to another symbol, terminal or operating device 

indicates that the operator must refer to an explanation in the Operating 

Instructions to avoid personal injury or damage to the meter. 

This WARNING symbol indicates a potentially hazardous situation, which 

if not avoided, could result in death or serious injury. 

This CAUTION symbol indicates a potentially hazardous situation, which 

if not avoided, may result damage to the product. 

This symbol advises the user that the terminal(s) so marked must not be 

connected to a circuit point at which the voltage with respect to earth 

ground exceeds (in this case) 1000 VAC or VDC. 

This symbol adjacent to one or more terminals identifies them as being 

associated with ranges that may, in normal use, be subjected to 

particularly hazardous voltages. For maximum safety, the meter and its 

test leads should not be handled when these terminals are energized. 

This symbol indicates that a device is protected throughout by double 

insulation or reinforced insulation. 

Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in 
which measures are taken to limit the transient overvoltages to an appropriate low level. 

Note – Examples include protected electronic circuits. 

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be 
supplied from the fixed installation. 

Note – Examples include household, office, and laboratory appliances. 

Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations. 

Note – Examples include switches in the fixed installation and some equipment for industrial 

use with permanent connection to the fixed installation. 

Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation. 

Note – Examples include electricity meters and primary over-current protection equipment 

MAX 
1000V