Safety Precautions
3-1
3. Safety Precautions
The Electrical Safety Analyzer can provide an output voltage as high as 6000VDC (5000VAC)
to the external device under test (DUT). Although the unit is designed with full attention to
operator safety, serious hazards could occur if the instrument is used improperly and these
safety instructions are not followed.
Never touch the metal of the High Voltage probe directly. Touch only the insulated parts of the
lead(s).
Never touch the test leads, test fixture, or DUT in any manner (this includes insulation on all
wires and clips) when high voltage is applied and the red DANGER light is ON.
Before turning the unit ON, make sure there is no device (DUT) or fixture connected to the
test leads.
After each test, press the [STOP] (red) button for safety. This terminates the high voltage
being applied to the output terminals.
When the red DANGER LED is illuminated or flashing, NEVER touch the device under test,
the lead wires or the output terminals.
Before touching the test lead wires or output terminals make sure:
a) The red [STOP] button has been pressed
b) The red DANGER LED is OFF.
In the case of an emergency, turn OFF the POWER switch using a “hot stick” and disconnect
the AC power cord from the wall. DO NOT TOUCH THE INSTRUMENT OR THE DUT.
If the DANGER LED does not go off when the [STOP] button is pressed, immediately stop
using the analyzer. It is possible that the output voltage is still being delivered regardless of
the TEST ON/OFF control signal.
When the analyzer is used in remote control mode, be extremely careful. The High Voltage
Output is being turned On/Off with an external signal.
1. Electric Shock Hazard
To prevent electric shock, all operators should put on insulated rubber gloves before
using the instrument.
2. Grounding
Operate the unit with its chassis connected to earth ground. The instrument is shipped
with a three-prong power cord to provide this connection to ground. This power cord
should only be plugged in to a receptacle that provides earth ground. Serious injury can
result if the unit is not connected to earth ground. There is a ground terminal on the rear
panel cover of the analyzer. Use the appropriate connector to connect the ground terminal
to an actual earth ground. If the instrument is not connected to ground, there may be high
voltage on the cover of the analyzer, causing a shock hazard. Make sure to connect the
ground terminal to earth, as shown in Figure 3-1.
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