General Safety Overview - Tenma 72-2650 Operating Manual

General Safety Overview

The instrument is designed and manufactured under
the safety requirement for GB4793 electric measuring
instrument and IEC61010-1 safety standards. It conforms
to insulation overvoltage standards CATII and safety
standards of pollution level II. The following safety
measures are set out to help avoid any personal injury or
product damage, or damage to any products that connect
with the instrument. In order to avoid any potential
hazards, please be sure to use the product as stipulated.
Ensure personnel receive training before using
the product.
Use correct power line: Only the dedicated power
lines for the product recognized by host country can be
adopted.
Correct plugging and unplugging: Do not plug in
or unplug the unit while probes or testing leads are
connected to a voltage source.
Product grounding: The ground lead of power supply.
72-2650/72-10510/72-8225A /72-8705A/72-8710A user manual
In order to avoid electric shock, the ground connection
must not be circumvented. Prior to connecting the
input or output terminal of the product, ensure the
product is grounded correctly.
Correctly connect the oscilloscope probe: The probe
ground lead and the ground are of the same potential.
Do not connect the ground lead with high voltage.
Check the rated values of all terminals: Check all
rated values and marking on the product match local
supply to avoid fire damage or electrical shock; check
the product manual before connecting the product to
view information on the rated values.
Do not open the cover plate of the case during operation:
Do not turn on or operate the product when the external
cover or panel is opened.
Use a proper fuse: Only fuse types and rated indexes
designated for the product.
Avoid circuit exposure: Do not contact exposed contact
or elements after powering on.