IFM Electronic Efector300 SBU3 Manuel utilisateur

Operating instructions

Mechatronic flow sensor

SBU3

706020/00 03/2011

1 Safety instructions

• Please read the product description prior to set-up of the unit. Ensure that the

product is suitable for your application without any restrictions.

• Improper or non-intended use may lead to malfunctions of the unit or to unwan-

ted effects in your application. That is why installation, electrical connection,

set-up, operation and maintenance of the unit must be carried out by qualified

personnel authorised by the plant operator.

• Check the compatibility of the product materials (see technical data) with the

media to be monitored in all applications.

• The device shall be supplied from an isolating transformer having a secondary

Listed fuse rated either

a) max 5 amps for voltages 0~20 V (0~28.3 Vpeak), or

b) 100/Vp for voltages of 20~30 V (28.3~42.4 Vpeak).

• Flow Operated Switches shall be connected only by using any R/C (CYJV2)

cord, having suitable ratings.

Contents

1 Safety instructions ...............................................................................................2

2 Functions and features ........................................................................................3

3 Installation............................................................................................................3

4 Electrical connection............................................................................................4

5 Switch point setting..............................................................................................4

5.1 Definition of requested value .........................................................................5

5.2 Adjustment to existing flow ............................................................................5

6 Operation.............................................................................................................6

7 Maintenance, repair and disposal........................................................................6

8 Scale drawing ......................................................................................................7

9 Technical data .....................................................................................................8

2 Functions and features

The unit monitors liquid media.

It detects the volumetric flow quantity to the principle of differential pressure and

switches the output:

• Outputclosed(LED=ON),ifvolumetricflowquantity≥switchpoint.

• Output open (LED = OFF), if volumetric flow quantity < switch point.

The switch point is adjustable.

3 Installation

►Ensure that the system is free of pressure during installation.

►Ensure that no media can leak at the mounting location during installa-

tion.

The unit provides 5 connections for pipe thread G½.

• 1: Connection for additional sensor

• IN = inlet

• OUT1 to OUT3: 3 x outlet for 3 different connection types

IN OUT1

OUT2

OUT3

The cover plugs are only loosely screwed to the connections.

►Firmly tighten the cover plugs for unused connections. Tightening

torque: 70 Nm.

4 Electrical connection

The unit must be connected by a qualified electrician.

The national and international regulations for the installation of electrical

equipment must be adhered to.

Voltage supply to EN 50178, SELV, PELV.

►Disconnect power.

►Connect the unit as follows:

L+

L-

For information about available sockets/connectors see:

www.ifm.com →Products→Accessories

5 Switch point setting

There are 2 possibilities:

• Definition of requested value →5.1.

• Adjustmenttoexistingflow→5.2.

L/min

1 2

A: LED; B: setting scale; C: lock nut; D: knurl

Do not turn the setting screw beyond the maximum value of the setting

range(→Technicaldata)toavoidfaultyswitching.

5.1 Definition of requested value

►Loosen the lock nut.

►Turn the knurl until the requested value just becomes visible on the setting

scale.→Exampleinfigure2:requestedvalue=10l/min.

►Tighten the lock nut.

5.2 Adjustment to existing flow

►Let the normal flow circulate in the installation.

►Loosen the lock nut.

►Set the switch point with the knurl.

- If the LED lights before setting: turn the knurl in the direction [+] until the LED

goes out. Then turn in the opposite direction [-] until the LED lights.

- If the LED does not light before setting: turn the knurl in the direction [-] until

the LED lights.

►Tighten the lock nut.

Correlation between number of the turns of the knurl (SET) and switch point in l/

min (typical course of the measurement curves):

SET

SBU325

SBU324

SBU323

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Q [l/min]

100

The diagram shows the typical course of the measurement curves for coolants at 20 °C.

6 Operation

After power on the unit is ready for operation. It detects the volumetric flow quanti-

ty and switches the output according to the setting.

Function diagram

A = requested flow; B = switch point; C = switching output

7 Maintenance, repair and disposal

In case of correct use no maintenance and repair measures are necessary.

In case of strongly polluted media: mount a filter in front of the inlet (IN). Recom-

mendation: use a 50-micron filter.

Only the manufacturer is allowed to repair the unit.

After use dispose of the unit in an environmentally friendly way in accordance with

the applicable national regulations.

8 Scale drawing

150...167

6,3

9 Technical data

Setting range

- SBU323 [l/min] ....................................................................................................... 0.3...25

- SBU324 [l/min] ....................................................................................................... 0.3...50

- SBU325 [l/min] ....................................................................................................... 0.3...75

Operating voltage [V]....................................................................... 24 DC (-15 % / +10 %)

Current rating [mA] ......................................................................................................... 100

Protected against short circuits, reverse polarity and overload

Voltage drop [V].............................................................................................................< 2.5

Current consumption [mA]..............................................................................................< 15

Hysteresis

- SBU323 [l/min] ...................................................................................................... 0.1...1.0

- SBU324 [l/min] ...................................................................................................... 0.1...1.5

- SBU325 [l/min] ...................................................................................................... 0.2...2.0

Repeatability [% of value of measuring range]....................................................................1

Accuracy [% of value of measuring range].......................................................................± 5

Response time [s]........................................................................................................< 0.01

Materials (wetted parts).......................... stainless steel 316 / 1.4401; aluminium anodised;

PEEK; O-ring: FPM (Viton)

Housing materials....................................................................... aluminium anodised; steel

Protection ............................................................................................................... IP 67 III

Switching cycles min. ........................................................................................... 10 million

Medium temperature [°C] ........................................................................................... 0...60

Operating temperature [°C] ........................................................................................ 0...60

Pressure resistance [bar]................................................................................................ 200

Temperature changes affect the specified standard settings for coolants.

For oils, the settings are influenced by temperature and viscosity.

More information at www.ifm.com

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