Chapter 1. Safety Precautions
5
EN61326:1997+A1+A2+A3, but do not meet Class B standards.
Measurement Category
The TO1000 series oscilloscope is intended to be used for measurements in Measurement Category I.
Measurement Category Definition
Measurement category I is for measurements performed on circuits not directly connected to the MAINS. Examples
are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits. In
the latter case, transient stresses are variable; for that reason, the user must understand the transient withstand capability
of the equipment.
Warning:
IEC Measurement Category. Under IEC Category I mounting conditions, the input terminal can be connected to
the circuit terminal with a maximum line voltage of 300Vrms. To avoid the risk of electric shock, the input
terminal should not be connected to the circuit with a line voltage greater than 300Vrms. Instantaneous
overvoltage is present in circuits that are isolated from the mains supply. The TO1000 series digital oscilloscope
is designed to safely withstand sporadic transient overvoltage up to 1000Vpk. Do not use this equipment for any
measurements in circuits where the instantaneous overvoltage exceeds this value.
1.2 Safety Terms and Symbols
Terms in the manual
These terms may appear in this manual:
Warning. Warning statements indicate conditions or practices that could result in injury or loss of life.
Caution. Caution statements indicate conditions or practices that could result in damage to this product
or other property.
Terms on the product
These terms may appear on the product:
Danger indicates an injury hazard immediately accessible as you read the marking.
Warning indicates an injury hazard not immediately accessible as you read the marking.
Caution indicates a hazard to this product or other properties.
Symbols on the product
The following symbols may appear on the product:
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