O3000 Series ORIFLOMETER®

TG-F1169-E00

TOKYO KEISO CO., LTD.

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■ CAUTIONS FOR INSTALLATION

1. Upstream/downstream straight pipe length

Upstream/downstream straight pipe length are required to obtain stable and accurate measurement results.

The required pipe length varies depending on the diameter ratio and piping layout. Refer to JIS Z 8762-2 : 2007 for details.

The following table shows the approximate length required for each pipe.

Elbow/Tees

Gate valve (full-open)

Upstream

straight pipe length

10D

12D

Downstream straight pipe length

4D

4D

• D: Inside diameter of the pipe.

• The straight pipe length is measured from the upstream surface of the main orifice plate.

2. Flow direction this product covers all directions including bottom-to-top, top-to-bottom, left-to-right, and right-to-left by changing the direction

of the indicator part. The direction can be changed with ease on the site.

3. This product uses magnetic couplings for displacement transmission and therefore can be affected by magnetic fields. Avoid using it on or

near magnetic fields and keep it away from magnetic materials.

4. When using this product next to one another, keep a distance of at least 10cm between the center of the pipes where the indicator is

installed, to avoid interference between them. Also keep a distance of at least 20cm from the side of the indicator for operation and

maintenance reasons.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558

Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922

e-mail : overseas.sales@tokyokeiso.co.jp ; URL : https://www.tokyokeiso.co.jp

* Specification is subject to change without notice.