Fluke 7 Series Service Manual page 9

The Fluke 7-300, 7-600, 12B, and 18 Meters have been designed and tested according to IEC
Publication 1010, Safety Requirements for Electronic Measuring Apparatus. This manual contains
information and warnings that must be followed to ensure safe operation and keep the meter in
safe condition. Use of this equipment in a manner not specified herein may impair the protection
provided by the equipment.
These multimeters comply with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) these meters may not cause harmful interference, and (2) these meters must
accept any interference received, including interference that may cause undesired operation.
Some common international electrical symbols are shown below:
AC: ALTERNATING CURRENT
DC: DIRECT CURRENT
EITHER AC OR DC CURRENT
X
FUSE
Before using the meter, read the following safety information carefully. In this manual, "Warning" is
reserved for conditions and actions that pose hazard(s) to the user; "Caution" is reserved for
conditions and actions that may damage your meter.
•
Avoid working alone.
•
Follow all safety procedures for equipment being tested.
•
Inspect the test leads for damaged insulation or exposed metal. Check test lead continuity.
Damaged leads should be replaced.
•
Be sure the meter is in good operating condition.
•
Select the proper function for your measurement.
•
To avoid electrical shock, use caution when working above 60V dc or 30V ac rms.
•
Disconnect the live test lead before disconnecting the common test lead.
•
Disconnect the power and discharge high-voltage capacitors before testing in resistance and
diodes or continuity.
•
When making a current measurement, turn the circuit power off before connecting the meter
in the circuit.
•
Check meter fuses before measuring transformer secondary or motor winding current. An
open fuse may allow high voltage build-up, which is potentially hazardous.
•
Use clamp-on probes when measuring circuits exceeding 10 amps.
•
When servicing the meter, use only the replacement parts specified.
•
Do not allow the meter to be used if it is damaged or if its safety features are impaired.
MULTIMETER SAFETY
DANGEROUS VOLTAGE
EARTH GROUND
SEE EXPLANATION IN MANUAL
DOUBLE INSULATION FOR
PROTECTION AGAINST ELECTRIC
SHOCK