6
Important Safety Information
Electric shock hazard:
• Do not disassemble or attempt to repair this unit. It contains no user-
serviceable parts.
• Do not expose the unit to extremes in temperature or high humidity.
Refer to “Specifications.”
Failure to observe these precautions may result in injury and can damage
the unit.
The voltage indicating LEDs are all powered by the internal batteries, not
by the system under test. The input impedance on voltage testing
function is as high as 460 k
Ω
; therefore, the influence of the measuring
current on the components of the installation under test is negligible.
The peak occurring current Is at the highest rated voltage 1000 VAC is:
Is = 1000 V x 1.414 / 460000
Ω
= 2.5 mA
Electric shock hazard:
The voltages marked on these testers are nominal voltages or nominal
voltage ranges. These testers shall only be used on installations with the
specified nominal voltages or nominal voltage ranges.
Failure to observe this precaution may result in injury and can damage
the unit.
