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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 on installation, connection and
commissioning as well as on maintenance, troubleshooting and storage. Please read it carefully
before installation and commissioning and keep it as part of the product near the meter for easy
reading.
This manual can be downloaded by entering the version number at
If the instructions are not followed, the protection provided by the meter may be destroyed.
Trademark, Copyright and Restriction Instructions
Dandong Top Electronics Instrument (Group) Co.,Ltd.®, Dandong Top Pump Co., Ltd.®, DDTOP®
are registered trademarks of the company.
The performance specifications of the meter are effective as of the date of publication 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 glass plate level gauge
have no defects in materials and manufacturing processes within one year from the date of delivery.
During the warranty period, if the product returns with quality problems and the claim is
determined by the manufacturer to be within the scope of warranty, Dandong Top Electronics
Instrument (Group) Co.,Ltd. is responsible for repair or replacement of 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. In addition to the special written warranty certificate for certain products of Dandong
Top Electronics Instrument (Group) Co.,Ltd., Dandong Top Electronics Instrument (Group) Co.,Ltd.
does not provide any express or implied warranty.
Quality
Dandong Top Electronics Instrument (Group) Co.,Ltd. has passed the ISO9001 quality system
certification. The whole process of product production is strictly in accordance with the scope of the
quality system, providing the strongest guarantee for product and service quality.
