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©2019 Guangzhou ZHIYUAN Electronics
Date: 2019/01/17
User Manual
V1.00
C
Guangzhou ZHIYUAN Electronics Co., Ltd.
ZDS2000B Series Oscilloscope User Manual
Measurement
category
Measurement
category
display
Description
Note
I/O
CAT I
It is applicable to measure
for the circuit not directly
connected with main power
supply
Measured for the circuit which is
not supplied by main power
supply or by main supply
especially with internal protection.
II
CAT II
It is applicable to measure
for circuits directly
connected to the
low-voltage device
Measured for household
appliances, portable tools and
other similar devices.
III
CAT III
It is applicable to measure
for building facilities
Measured for the output socket,
industrial device and other
devices of the distribution board,
circuit breaker and wirings include
cable, busbar wire, junction box,
switch and fixed facilities, such as
those stationary motors
permanently attached to fixed
facilities.
IV
CAT IV
It is applicable to measure
for the terminal of the
low-voltage facilities
Measured for primary over current
protection devices and ripple
control units.
Notes:
Note: The CAT I result is measured for the circuit not directly connected with main power
supply. For example, a circuit is not supplied by main power supply or by main supply especially
with internal protection. In the latter case, the transient stress is variable. Therefore, users should
know the tolerant transient stress of device.
WARNING
WARNING
symbol indicates serious danger. Improper handling or execution in a
specified process, operation and so on can lead to serious or fatal injury to the users.
Please completely read and fully understand the related notes before continuing
operation.
1.3 Measurement Category
ZDS2000B series oscilloscopes can be measured in CAT I, and the maximum input
voltage must be kept in the range of CAT I 300Vrms.
WARNING
