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Preface
Thank you for choosing the products of Dandong Top Electronics Instrument (Group) Co., Ltd.
This operation manual provides you with important information about installation, connection and
commissioning as well as maintenance, troubleshooting and storage. Please read it carefully before
installation and commissioning and save it as an integral part of the product near the instrument for
reading at any time.
This manual can be downloaded from www.ddtop.com.
If you do not follow this manual, the protection provided by this instrument may be damaged.
Trademarks, Copyrights and Restrictions Instructions
Dandong Top Electronics Instrument (Group) Co., Ltd.®, Dandong Top Pump Co., Ltd.®, DDTOP®
are registered trademarks of the company.
The performance specifications of this instrument are effective from the date of release, and are
subject to change without notice. Dandong Top Electronics Instrument (Group) Co., Ltd reserves the
right to modify the products described in this manual at any time without prior notice.
Quality Assurance
Dandong Top Electronics Instrument (Group) Co., Ltd guarantees that all products will be free from
defects in materials and manufacturing processes within one year from the date of leaving the
factory.
During the warranty period, if the product is returned due to quality problems, and the claim is
determined to fall within the scope of the warranty after inspection by the manufacturer, Dandong
Top Electronics Instrument (Group) Co., Ltd is responsible for repairing or replacing it for the buyer
(or owner) free of charge.
Dandong Top Electronics Instrument (Group) Co., Ltd is not responsible for the costs caused by
improper use of equipment, labor claims, direct or subsequent damage, and installation and use of
equipment. Except for the special written warranty certificate for certain products, Dandong Top
Electronics Instrument (Group) Co., Ltd does not provide any express or implied quality guarantee.
Quality
Dandong Top Electronics Instrument (Group) Co., Ltd has passed the ISO9001 quality system
certification. The entire production process is strictly implemented in accordance with the scope of
the quality system, providing the strongest guarantee for the quality of products and services.
