IFM Electronic SBY357 Operating Instructions Manual

Operating instructions

Mechatronic flow sensor

SBY357

704561 / 04 09 / 2010

UK

2

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
unwanted 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

3

UK

2  Functions and features

The unit monitors liquid media (water, glycol solutions, oils).
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.

► Install the unit according to the marked flow direction into a pipe RP 1½ and

tighten firmly.

Rp 1

2

1

Rp 1

2

1

IN

OUT

IN = inlet
OUT = outlet