Operation Manual

1-1

IM 1F5B2-01E

1. INTRODUCTION

The UYF200 series of ultrasonic vortex flowmeters, one in the family of YEWFLO

flowmeters, has been fine-tuned to your order specifications prior to shipment. Before

use, read this manual thoroughly and familiarize yourself fully with the features,

operations and handling of ULTRA YEWFLO to have the instrument deliver its full

capabilities and to ensure its efficient and correct use.

■ Notices Regarding This Manual

•This manual should be passed on to the end user.

• The contents of this manual are subject to change without prior notice.

any form or by any means without the written permission of Yokogawa Electric

Corporation (hereinafter simply referred to as Yokogawa).

• This manual does not warrant the marketability of this instrument nor does it warrant

that the instrument will suit a particular purpose of the user.

• Every effort has been made to ensure accuracy in the contents of this manual.

However, should any questions arise or errors come to your attention, please contact

your nearest Yokogawa sales office that appears on the back of this manual or the

sales representative from which you purchased the product.

•This manual is not intended for models with custom specifications.

• Revisions may not always be made in this manual in conjunction with changes in

specifications, constructions and/or components if such changes are not deemed to

interfere with the instrument’s functionality or performance.

■ Notices Regarding Safety and Modification

• For the protection and safety of personnel, the instrument and the system comprising

the instrument, be sure to follow the instructions on safety described in this manual

when handling the product. If you handle the instrument in a manner contrary to

these instructions, Yokogawa does not guarantee safety.

• As for explosion-proof model, if you yourself repair or modify the instrument and

then fail to return it to its original form, the explosion-protected construction of the

instrument will be impaired, creating a hazardous condition. Be sure to consult

Yokogawa for repairs and modifications.

• The following safety symbols and cautionary notes are used on the product and in this

manual: