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1. Preface
In order to ensure the normal use of the instrument, please read this manual carefully and
fully understand how to use the instrument before operation.
About this user manual
● The instructions must be provided to the end user.
● Please read this manual carefully before use.
● The contents of this manual can be changed without prior notice.
● All rights reserved. Without the written consent of 2 flow AB, no part of the manual can
be copied in any form.
● 2Flow AB makes no guarantee in any form for this manual, including but not limited to
the sale of this manual and its use for other special purposes.
● The company makes every effort to ensure the correctness of the contents of the
instructions. If there are any errors or omissions, please inform 2Flow AB.
● Besides the contents mentioned in the statement, 2Flow AB will not bear any other
responsibilities for this product.
● If the change of product specification, structure or operating parts does not affect the
operation and performance, the user manual will not be revised accordingly.
1.1 Safety tips
●The installation and wiring of flow sensor and temperature sensor must be completed by
professional technicians;
● all wiring terminals and connecting wires of the instrument must be plugged in and out
after power failure;
● when measuring high-temperature fluid, the sensor housing will become very hot to
prevent personnel from scalding.
The provisions of this manual must be observed at all stages of product operation and
maintenance, especially the contents with the following marks.
A warning indicates a danger that may result in injury or death.
Attention indicates that there is a danger, which may cause partial or overall
damage to the instrument.
It is forbidden to indicate that the instrument will not work normally or be damaged.
It is important to draw the attention of operators to avoid instrument damage.
Notes indicate information that must be known about the operation and
characteristics of the instrument.