2 / 18
WWW.DDTOP.COM
Preface
Thank you for choosing the products of Dandong Top Electronics Instrument (Group) Co.,
Ltd.
This product instructions 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.