YOKOGAWA VZ20X, User Manual

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All Rights Reserved Copyright © 2021, Yokogawa Electric Corporation
IM 77V01B01-01EN 5th Edition: 2023.03.07-00
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Safety Precautions
The following symbol is used on the product. It indicates the possibility of injury to the
user or damage to the product, and signifies that the user must refer to the user’s
manual for special instructions. The same symbol appears in the corresponding place in
the user’s manual to identify those instructions. In the manual, the symbol is used in
conjunction with the word “WARNING” or “CAUTION.”
WARNING
Calls attention to actions or conditions that could cause serious or fatal injury to the user,
and indicates precautions that should be taken to prevent such occurrences.
CAUTION
Calls attention to actions or conditions that could cause injury to the user or damage to
the product or property and indicates precautions that should be taken to prevent such
occurrences.
Note
Identifies important information required to operate the instrument.
This indicates "DC."
This indicates "DC/AC."
The equipment wholly protected by double insulation or reinforced insulation.
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Precautions Related to the Protection, Safety, and Alteration of the Product
・
This instrument conforms to IEC safety standards IEC61010-1 and IEC61010-2-
030, Overvoltage Category I *
1
, Measurement Category II (CAT II) *
2
.
* 1 This product is connected to a circuit in which measures for limiting transient
overvoltage to an appropriate low level have been adopted. When power is
supplied from fixed equipment such as electric switchboards, connect a
transformer between the product and the fixed equipment.
* 2 Measurement category II (CAT II) applies to test circuits and measuring circuits
that are directly connected to locations (e.g. outlets) where low-voltage main
power supply equipment is used.
This instrument complies with EMC standard EN61326-1 Class A Table 2 (For use
industrial locations)
(*)
.
The influence rate (performance criterion A) in the immunity test environment is
within ± 5 % of the
voltage or resistance range.
*: Support for VZ20X style 2.01 and later.
For the protection and safe use of the product and the system in which this product
is incorporated, be sure to follow the instructions and precautions on safety that are
stated in this manual whenever you handle the product. Take special note that if
you handle the product in a manner that violates these instructions, the protection