WARNING
4
DESIGN and FUNCTION
The
VDA0450
is a direct contact, linear/ logarithmic
scale (linear to 14), capacitive type voltage detectors for use
on system voltages up to 500kV/765kV (Phase-to- Phase). Direct
contact with line conductors and equipment indicates
approximate nominal
Line-to-Ground
voltage or induced voltage.
Completely shielded, the tester reads only contacted test points.
Five Position Selector Switch Positions
OFF
-
Meter OFF
OFF
-
Meter OFF
OFF
-
Meter OFF
ON
T
-
Meter ON
-
Meter Test
Always test lines and equipment with the selector switch in the
“ON”
position.
Meter should deflect full scale with a new battery
in “T” position.
Deflection below 140 indicates low battery. Replaceable 9V battery is
located behind the live line tool attachment threaded into the meter
housing. Two flat surfaces are furnished for use with a wrench to
remove the attachment.
Always test voltage detector before and after each use
As with all voltage detectors, readings can be affected by a
variety of field conditions. For example, if the live line tool fitting
is close to opposite phases or grounded surfaces, the readings could
be higher than nominal. If the live line tool fitting is close to same
phases, the reading could be lower than nominal.
It is recommended that the meter housing and probe be cleaned
with a silicone cloth prior to each use.