Fluke 725Ex - Safety Information

Standard Equipment
3
Standard Equipment
The items listed below and shown in Figure 1 are included
with the Calibrator. If the Calibrator is damaged or
something is missing, contact the place of purchase
immediately. To order replacement parts, see
Replacement Parts in Table 9.
• TL75 test leads (one set)
• AC72 alligator clips (one set)
• Stackable alligator clip test leads (one set)
• Fluke 725Ex CD-ROM (contains Fluke 725Ex Users
Manual)
• Fluke
725Ex CCD
• Fluke 725Ex Safety Information
• 4 AA Batteries (installed)
• Hex Key, 5/64 in., short arm
Safety Information
A Warning statement identifies conditions and actions that
pose a hazard(s) to the user. A Caution statement
identifies conditions and actions that may damage the
Calibrator or the equipment under test.
Symbols used on the Calibrator and in this manual are
explained in Table 2.
Ex Hazardous Areas
An Ex-hazardous area as used in this manual refers to an
area made hazardous by the potential presence of
flammable or explosive vapors. These areas are also
referred to as hazardous locations, see NFPA 70 Article
500 or CSA C22.1 Section 18.
The Model 725Ex Calibrator has been designed for use in
Ex Hazardous Areas. These are areas where potentially
flammable or explosive vapors may occur. These areas
are referred to as hazardous (classified) locations in the
United States, as Hazardous Locations in Canada, as
Potentially Explosive Atmospheres in Europe and as
Explosive Gas Atmospheres by most of the rest of the
world. The Model 725 Ex calibrator is designed as
intrinsically safe. This means that connecting the 725Ex
calibrator to equipment that is used within intrinsically safe
circuits will not cause an ignition capable arc as long as
the entity parameters are suitably matched.
The Calibrator has two sets of parameters. The Vmax and
Imax parameters show the maximum voltage and
maximum current that may be connected to the Model
725Ex terminals without compromising the intrinsic safety.
The voltage and current will generally come from intrinsic
safety barriers that provide power to the field equipment