A.W. Sperry Instruments DSA-500 Operating Instructions

3/01
OPERATING INSTRUCTIONS
MODEL DSA-500
DIGISNAP
SNAP-AROUND
Trigger
COM Terminal
A.W. SPERRY INSTRUMENTS INC.
The Professional's Choice
FORM #310
Transformer Jaws
Data Hold
Switch
Function
Selector
Switch
Display
V/Ω Terminal
®
1. Features
• Safety design conforming to the following
provisions of IEC61010.
• Overvoltage category III 300V, pollution degree 2,
• Overvoltage category II 600V, pollution degree 2,
• Data hold switch for easy reading in dimly light or
hard-to-read locations.
• "Sleep" .feature to extend battery life.
• Beeper permits easy continuity check.
• Provides a dynamic range of 4,000 counts
full scale.
• Uses shrouded transformer jaws to further
improve safety.
2. Safety Warnings
• This instrument has been designed and tested
according to IEC Publication 61010: Safety
Requirements for Electronic Measuring
Apparatus. This instruction manual contains
warnings and safety rules which must be
observed by the user to ensure safe operation
of the instrument and retain it in safe condition.
Therefore, read through these operating
instructions before using the instrument.
WARNING
!
• Read through and understand instructions contained in this
manual before using the instrument.
• Save and keep the manual handy to enable quick reference
whenever necessary.
• Be sure to use the instrument only in its intended applications
and to follow measurement procedures described in the manu-
al.
• Be sure to understand and follow all safety instructions con-
tained in the manual.
• Failure to follow the above instructions may cause injury,
instrument damage and/or damage to equipment under test.
The symbol indicated on the instrument means
!
that the user must refer to related parts in the man-
ual for safe operation of the instrument. Be sure to
carefully read the instructions following each symbol
in this manual.
!
DANGER is reserved for conditions and actions that are likely
to cause serious or fatal injury.
!
WARNING is reserved for conditions and actions that can
cause serious or fatal injury.
!
CAUTION is reserved for conditions and actions that can
cause minor injury or instrument damage.
! DANGER
• Never make measurement on a circuit with a voltage higher
than 600 VAC/DC.
• Do not attempt to make measurement in the presence of
flammable gasses, fumes, vapor or dust. Otherwise, the use
of the instrument may cause sparking, which can lead to
an explosion.
• Transformer jaws are made of metal and their tips are not