IFM SB0503 User manual

Operating instructions
Mechatronic flow sensor
SB0503
SB0506
SB0523
SB0528
80273229 / 00 04 / 2018
UK

2
1 Preliminary note
►Instructions
> Reaction, result
→Cross-reference
Important note
Non-compliance can result in malfunction or interference.
Information
Supplementary note.
Contents
1 Preliminary note...................................................................................................2
2 Safety instructions ...............................................................................................3
3 Functions and features ........................................................................................3
4 Installation............................................................................................................4
4.1 Installation SB0528........................................................................................4
5 Electrical connection............................................................................................5
6 Settings................................................................................................................6
6.1 Switch point setting (optional)........................................................................6
7 Operation.............................................................................................................7
8 Technical data and scale drawing........................................................................7
9 Maintenance, repair, disposal..............................................................................7

3
UK
2 Safety instructions
• Read this document before setting up the product and keep it during the entire
service life.
• The product must be suitable for the corresponding applications and environ-
mental conditions without any restrictions.
• Only use the product for its intended purpose (→ 3 Functions and features).
• Only use the product for permissible media (→ Technical data).
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property may occur.
• The manufacturer assumes no liability or warranty for any consequences
caused by tampering with the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the unit
must be carried out by qualified personnel authorised by the machine operator.
• Protect units and cables against damage.
• During installation or in case of a fault (housing damage) media under high
pressure or hot media can leak from the system.
►Install the unit according to the applicable rules and regulations.
►Ensure that the system is free of pressure during installation.
►Ensure that no media can leak at the mounting location during installation.
►Equip the unit with suitable protection (e.g. cover) to avoid hazard to person-
nel from leaking media.
3 Functions and features
The unit monitors liquids (water).
It detects the volumetric flow quantity to the principle of differential pressure and
switches the output.

4
4 Installation
OUT
IN
G½
G½
The unit provides 2 connections
for pipe thread G ½.
• IN = inlet
• OUT = outlet
Baffled pipes at the input and output side are not necessary.
4.1 Installation SB0528
OUT
IN
►Install the unit in a horizontal
position.
Inlet from below.

5
UK
5 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 according to EN 50178, SELV, PELV.
►Disconnect power.
►Connect the unit as follows:
43
2 1
BK: black
BN: brown
BU: blue
L+
L
BN1
4 BK
3 BU
Colours to DIN EN 60947-5-2
Information about available sockets/plugs at www.ifm.com.

6
6 Settings
The set point is preset at the factory and sealed.
Order no. Preset switch point [l/min]
SB0503 3.25
SB0506 2.5
SB0523 4.8
SB0528 4.3
6.1 Switch point setting (optional)
The preset switch point can be changed by turning the sensor head.
It is possible to set the switch point to the existing flow, if necessary:
►Let the normal flow circulate in the installation.
►Loosen the lock nut.
►Set the switch point by slowly turning the sensor head: The switch point has
been reached as soon as the LED is lit.
►Tighten the lock nut.
2
3
1
1: Sensor head
2: LED
3: Lock nut

7
UK
7 Operation
After power on, the unit is ready for operation.
The unit detects the volumetric flow quantity and switches the output according to
the setting.
• Output closed (LED = ON), if volumetric flow quantity ≥ switch point.
• Output open (LED = OFF), if volumetric flow quantity < switch point.
8 Technical data and scale drawing
Technical data and scale drawing at www.ifm.com.
9 Maintenance, repair, disposal
If used correctly, no maintenance and repair measures are necessary.
In case of strongly polluted media: mount a filter before the inlet (IN). Recommen-
dation: Use a 200-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.
More information at www.ifm.com