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UK

7.2  High flow adjustment (optional)

The unit determines the existing flow as normal flow and adapts the display repre-

sentation (all LEDs except the switch point LED light green)�

 

► Let the normal flow circulate in the installation�

 

► Press the pushbutton   and keep it pressed�

 

> LED 9 lights, after approx� 5 s it flashes�

 

► Release the pushbutton�
The unit is now adapted to your flow conditions� It passes into the operating mode, 

the display should now show example 1�
Note: The adjustment affects the switch point: It is increased proportionally (maxi-

mum up to LED 7)�
Remote adjustment → 8.5.

8  Additional settings (optional)

8.1  Low flow adjustment

If the unit is used in media other than water, you should additionally adapt the unit 

to the minimum flow� 

Note: The following adjustment must only be carried out after the high flow adjust-

ment�

 

► Let the minimum flow circulate in the installation or ensure flow standstill�

 

► Press the pushbutton 

 and keep it pressed�

 

> LED 0 lights, after approx� 5 s it flashes�

 

► Release the pushbutton� The unit adopts the new value and passes into the 

operating mode�

Remote adjustment → 8.5.

8.2  Configure the switching output

The unit is delivered as normally open� In case of need you can change the output 

to normally closed:

 

► Press the pushbutton 

 for at least 15 s�

 

> LED 0 lights, after approx� 5 s it flashes�

 

> After 10 s the current setting is displayed: LEDs 5���9 light orange (= output 

normally open)�

 

> After approx� 15 s LEDs 0���4 flash orange� 

 

► Release the pushbutton� The output is changed to normally closed operation�
For a new changeover repeat the operation�

Summary of Contents for SI0550

Page 1: ...Operating instructions Flow monitors SI0550 11458776 00 08 2010 UK...

Page 2: ...4 3 Mounting operation 6 5 Electrical connection 7 6 Operating and display elements 7 7 Set up and settings for water 8 7 1 Change the switch point optional 8 7 2 High flow adjustment optional 9 8 Add...

Page 3: ...nd EC directives 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 maint...

Page 4: ...s flowing output open if no medium is flowing This applies to the unit on delivery output normally open In case of need you can change the output to normally closed 8 2 It then applies output open if...

Page 5: ...lation location General The sensor tip is to be completely surrounded by the medium Insertion depth of the sensor minimum 12 mm Recommended For horizontal pipes mounting from the side For vertical pip...

Page 6: ...ed emptied are to be avoided due to the high measuring sensitivity of the units 4 3 Mounting operation Ensure that the system is free of pressure during installation Ensure that no media can leak at t...

Page 7: ...8 5 1 BN brown 2 WH white 3 BU blue 4 BK black Use 4 wire connection cables without a link between pins 2 and 4 With 3 wire sockets with a link between pin 2 and pin 4 switching of the output stage t...

Page 8: ...2 3 Your normal flow exceeds the representation range of the display LED 9 flashes Carry out high flow adjustment 7 2 You can restore the factory setting any time 8 3 7 1 Change the switch point optio...

Page 9: ...you should additionally adapt the unit to the minimum flow Note The following adjustment must only be carried out after the high flow adjust ment Let the minimum flow circulate in the installation or...

Page 10: ...adapt the unit to new flow conditions any time Apply the operating voltage for 5 10 s to Pin 2 high flow adjustment Apply the operating voltage for 10 15 s to Pin 2 low flow adjustment This adjustment...

Page 11: ...the representation range LED 0 flashes current flow far below the represen tation range Interference indicator Short circuit at the switching output The operating indicator and red LEDs light alterna...

Page 12: ...12 12 Scale drawing 22 1 2 113 60 65 14 8 2 45 50 27 63 M12 x1 3 1 LED bar display 2 set button 3 tightening torque 25 Nm...

Page 13: ...esponse time s 1 Pressure resistance bar 300 Operating temperature C 25 80 Protection rating IP 67 Protection class III Shock resistance g 50 DIN IEC 68 2 27 11 ms Vibration resistance g 20 DIN IEC 68...

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