Omega Products FTB-900 Installation Manual

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FTB-9OO/FTB-9500

SERIES

Precision Turbine Flowmeters

,

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apply. OMEGA is constantly pursuing certification of its products to the European New Approach
Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING These products are not designed for use in, and should not be used for, patient connected applications.

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regulations that

TABLE OF CONTENTS

PAGE

f

2

3
4

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6
7
8
9

DESCRIPTION

Forward

Pre-Installation Inspection,

Installation (continued)

Typical Meter Runs

Typical Flowstraightener Section

5/8”

Assembly Procedure

-

l/4”

&

UP Assembly Procedure

3/4

Assembly Procedure

Assembly Procedure

Installation

A. PRINCIPLE OF OPERATION

1.

The Precision Turbine Flowmeter

-’

2.

The flowing fluid engages the

i’

proportional to the Flow

4

3.

The

angular

velocity of the rotor results

(AC sine wave type).

Rate.

Summa tion of the pulsing electrical signal relates directly to

the Flow Rate.

FORWARD

is a volu me tric flo w measuring device.

vaned

rotor causing it to rotate at an angular velocity

in the generation of an electrical signal

4.

The differential pressures developed

accross

the Turbine Flow m eter balances out
nor m al do wnstrea m thrust loads, thus eli m inating the need for thrust bearings over
the rated range of the m eter.

i

5.

The

vaned

rotor is the only m oving part of the Flo wm eter.

B. PHYSICAL DESCRIPITION

Refer to Asse mb ly procedures in this m anual for hte identification of m ajor parts of a typical

PRECISION

TURBINE FLOW-METER.
C.

ELECTRICAL

The

pickup coil furnished with each PRECISION TURBINE FLO WM ETER is a sensing device that

converts the change of m agnetic flux fro m a per m anent m agnet produced by

DESCRIPTION

the

revolving rotor into an

AC

sine wave.

1. Pickup Coil

Types-
Two Types of Pickup Coils are available:
Standard: Variable Reluctance-Generating Pickups contain a per m anent m agnet
and associated w ire- wound coil.

The movement of the m agnetic m aterial of the

rotor blade across the coil tip procedures an AC signal w ithin the coil w inding.

Op tional: Inductance- Generating pickups contain a wire-wound coil suitably

futed
w ithin a her m etically sealed housing. The m ove m ent of a per m anent m agnet
em bedded in a rotor produces an AC signal within the coil winding.

2.

Pickup Coil Output

-

The generated AC

sinewave

is trans m itted via 2 w ire

shielded cable that m ini m izes external interference.

3. Your Pickup Coil
reluctance coil provides the highest

The inductance coil has a higher signal/noise ratio and a lo wer

-

Has been selected to best suit your particular application. The

full

scale frequency and a lesser signal/noise ratio.

full

scale frequency.