SI0102 - Flow controller IFM - Free user manual and instructions

Product type	Flow controller for liquids and gases
Supply voltage	20 ... 36 V DC
Output current	2 x 250 mA, short-circuit and overload protected
Threshold adjustment range (liquids)	3 ... 300 cm/s
Threshold adjustment range (gases)	200 ... 3000 cm/s
Fluid temperature	-25 ... +80 °C
Ambient temperature	-25 ... +80 °C
Pressure rating	30 bar
Protection rating	IP67 (IEC 60529)
Process connection	Thread M18 x 1.5; adapters M12, G1/4, G1/2 available
Minimum upstream/downstream distance	5 × pipe diameter (upstream) / 3 × diameter (downstream)
Probe installation depth	Min. 12 mm in the tube
Max. tightening torque	50 Nm
Main functions	Flow detection, output switching (N.O./N.C.), LED display, HI-Teach/LO-Teach programming, adjustable switching thresholds, overcurrent monitoring
Maintenance and cleaning	Periodically check for deposits at the probe tip; clean with a soft cloth or acetic acid cleaner
Safety	PELV/SELV power supply according to EN50178; reverse polarity protection; programming lock via buttons
General information	Free user manual and operating instructions in PDF format; user questions possible

Frequently Asked Questions - SI0102 IFM

How to set the SI0102 IFM flow controller for the first time?

For simple adjustment, perform HI-Teach: power on the device, set the flow to the desired maximum value, then press the Learn/Set button for 5 to 10 seconds until the LED bar lights up from left to right. Release the button, the device stores this flow as maximum. This setting is sufficient for most water-based applications.

What is LO-Teach and when to use it?

LO-Teach allows you to define a minimum (or zero) flow as the lower limit of the display range. It is optional and must always be performed after HI-Teach. To do so, set the flow to the desired minimum value, then press Learn/Set for 10 to 15 seconds until the LED bar lights up from right to left. Release, the device stores this flow as minimum.

How to set the switching thresholds SP1 and SP2?

Press Mode/Enter once to set SP1, twice for SP2. The current threshold is displayed (LED on = coarse adjustment, LED flashing = fine adjustment). Press Learn/Set for more than 5 seconds to increase the threshold (or press several times step by step). Confirm by briefly pressing Mode/Enter. The threshold becomes effective and the device returns to RUN mode.

How to monitor excessive flow (overcurrent monitoring)?

Press Mode/Enter three times to access this function. The current setting is displayed (green LED). Press Learn/Set for 5 seconds until an LED flashes, then press Learn/Set several times to move the flashing LED to the desired position (LED 8, 7, 6, or 5) defining the display window. Confirm with Mode/Enter. In case of excessive flow, the LEDs above this scale light up.

How to reset to factory settings?

Ensure you are in RUN mode. Press the Learn/Set button for 15 to 20 seconds. Observe the sequence: after 5 s, the LED bar lights up from left to right; after 10 s, from right to left; after 15 s, the orange LED bar lights up from left to right. Release as soon as the first orange LEDs light up. The display briefly turns off and factory settings are restored.

How to electrically connect the flow controller?

The device must be installed by an electrician. Observe national and international regulations. Power supply according to EN50178 (PELV/SELV). For UL 508, use a galvanically isolated power supply with overload protection. Disconnect the installation before connection. The wiring diagram is in the manual (connector on sensor side). Wire colors are indicated for ifm female connectors.

How to maintain the flow controller?

Periodically check for deposits at the probe tip. Clean with a soft cloth. For adherent deposits (lime), use a common acetic acid cleaner. No grease should be applied to the probe tip.

What do the different LED indications mean?

In RUN mode: the green LED bar indicates the relative flow (LED 0 = minimum, LED 9 = maximum). LED 9 flashes if excessive flow; LED 0 flashes if flow below minimum or zero. The orange/red LEDs indicate switching status: orange if flow ≥ threshold, red if flow < threshold. In case of short circuit: the left 5 LEDs flash for S1, the right 5 for S2.

How does hysteresis work?

Hysteresis prevents unintentional switching. When the flow increases and reaches threshold SPx, the output switches. When the flow decreases, the output switches back only after falling below SPx - hysteresis. Hysteresis depends on the operating range: for water between 0 and 60 cm/s, it is 2 to 4 cm/s; above 100 cm/s, it increases with flow.

What to do if red LEDs flash during adjustment?

If red LEDs flash, it means the adjustment is not possible. The device becomes operational again without any value changes. Check that you are following the procedure correctly (e.g., do not exceed press times, respect the order HI-Teach then LO-Teach, etc.). If no button is pressed for 15 s, the device exits adjustment mode without changes.

USER MANUAL SI0102 IFM

Operating instructions

Notice utilisateurs

LED = grün L = orange LED rot

Inhalt

1 = BN(braun), 2 = WH(weiβ), 3 = BU(blau), 4 = BK(schwarz)

Brief adjustment instructions

Installation

Mounting page 22, electrical connection page 24.

HI-Teach

Apply the operating voltage.

After approx. 15s the unit is ready.

Allow the medium to flow through the system at the required maximum flow rate (HI).

Press the Learn/Set button and keep it pressed.

The green LEDs on the right and on the left flash, after 5s the LED bar (green) fills from left to right (release the button as soon as the first LEDs light).

The indication goes off briefly. The unit stores the current flow as maximum flow.

• The unit is ready for normal operation.

Further setting options ( page 25)

• The HI-Teach is sufficient for the majority of waterbased applications. Optional: adjustment to minimum flow (LO-Teach).
• Setting of the switch points.
• Setting for monitoring and optical indication of excess flow.
• Reset to factory settings.

Controls and visual indication

Function display (Run mode)

current flow within the display range (LED bar green)

excess flow (LED 9 flashes)

underflow (LED 0 flashes)

Indication of the switch points (SPx):

LED orange: flow ≥ SPx; LED red: flow < SPx

Setting buttons

Mode / Enter:

• selection of the menu items and acknowledgement

Learn/Set:
- adjustment to maximum / minimum flow;
- reset to factory settings
- setting of values (scrolling by holding pressed;incremental by pressing briefly)

Menu structure

LED = green LED = orange LED red

Contents

Function and features . page 21
Installation page 22
Electrical connection page 24
Programming page 25
Installation and set-up / Operation / Maintenance 26
Technical data page 27
Programming diagrams / Technical information 28

Function and features

The flow monitor

• detects the flow velocity in liquid and gaseous media
• switches the outputs according to the programming (N.O./or-N.C./, programmable by wiring; →page 24)

• and indicates the relative flow value within the adjustable detection range by means of LEDs:

• LED 0 = lower limit of the detection range (maximum value / LO)

• LED 9 = upper limit of the detection range (minimum value / HI)

It is also possible to indicate:

• Switching status (LED red: flow below the switch point, LED orange: flow has reached the switch point).
• Excess flow: LED 9 flashes if the flow is considerably higher (2 LEDs) than the display range.
• Underflow / flow standstill: LED 0 flashes if the flow is lower than the display range.

Installation

The unit is adaptable for various process fittings (adapters to be ordered separately as accessories).

• In the case of horizontal pipes mount the unit from the side, if possible (fig. 1).
  When the unit is to be mounted at the bottom of the pipe, it should be free from deposits.
  When the unit is to be mounted at the top of the pipe, it should be completely filled with the medium to be monitored.
• In the case of vertical pipes mount the unit in a place where the medium flows upwards (fig. 2).

To avoid malfunction a minimum distance between the flow monitor and bends, valves, changes in cross-section or such like must be observed:

• Min. 5 x pipe diameter upstream (A),
• min. 3 × pipe diameter downstream (B).

thread M18 x 1.5

1. Lubricate the nut (3) and all threads with grease to ensure the nut can be loosened and tightened several times.

Note: No grease must be applied to the sensor tip (A).

1. Screw the suitable adapter (2) onto the process fitting (1).
2. Insert the flow monitor into the adapter. While keeping the unit aligned tighten the nut (3); (max. tightening torque 50Nm).

Insertion depth of the sensor: min. 12mm in the pipe. When the adapters are used which are available as accessories, the correct depth is ensured.

Note: The sensor tip must not touch the pipe wall.

mounting dimension with M12 adapter	mounting dimension with G¼ adapter	mounting dimension with G½ adapter
13.5 27	13.5 27	13.5 27

ENGLISH

Electrical connection

The unit must only be connected by an electrician.

The national and international regulations for the installation of electrical equipment must be observed.

Voltage supply to EN50178, SELV, PELV.

The device shall be supplied from an isolating source and protected by an overcurrent device such that the limited voltage circuit requirements in accordance with UL 508 are met.

Disconnect power before connecting the unit as follows

$$ (\text {一} = \quad N. O t: \quad / \quad = \quad N. C.) $$

connector view (sensor)

Core colours of ifm sockets:

1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)

When the supply voltage is applied, all LEDs light and go off one after the other.* The unit is then ready for operation.

*During this time both outputs are switched according to the programming: ON with the NO function and OFF with the NC function.

Failure indication: 5 left LED's flashing in case of short-circuit at the switching output S1; 5 right LED's flashing in case of short-circuit at the switching output S2.

Programming

Setting of the detection range HI-Teach

• Allow the medium to flow through the system at the required maximum flow rate.
• Press the Learn/Set button for >5 < 10s (= adjustment to maximum flow / upper limit of the detection range).

Optional: LO-Teach

The HI-Teach is sufficient for the majority of waterbased applications. Optional: adjustment to minimum flow.

• Allow the medium to flow through the system at the required minimum flow rate or bring flow to a standstill.
• Press the Learn/Set button for >10 < 15s (= adjustment to minimum flow or flow standstill / lower limit of the detection range).

Setting of the switch points (SP1 / SP2)

• Press the Mode/Enter button briefly (to set SP1), or press the Mode/Enter button twice (to set SP2).
• Press the Learn/Set button for 5s,
• keep the Learn/Set button pressed or press the button several times until the requested switch point is set.
• Press the Mode/Enter button briefly.

Monitoring excess flow

• Press the Mode/Enter button three times.
• Press the Learn/Set button for 5s, release the button when LED flashes.
• Press the Learn/Set button several times to shift the LED for the maximum display value.
• Press the Mode/Enter button briefly.

Reset to factory settings

• Press the Learn/Set button for >15 < 20s

The following applies to all setting procedures:

• If no button is pressed for 15s during the setting procedure, the unit returns to the operating mode with the parameter values unchanged.
• If adjustment has not been possible, all the red LEDs flash. The unit returns to the operating mode with the parameter values unchanged.

Locking / Unlocking

The unit can be electronically locked to prevent unwanted adjustment of the set parameters: Press both setting buttons for 10s (the unit must be in Run mode). Indication goes out briefly (acknowledgement of locking / unlocking).

Units are delivered from the factory in the unlocked state.

If the unit is locked, it is possible to indicate

• the current switch point 1 (press the Mode/Enter button once),
• the current switch point 2 (press the Mode/Enter button two times),
• the setting of the function "monitoring excess flow" (press the Mode/Enter button three times).

Installation and set-up / Operation / Maintenance

After mounting, wiring and setting check whether the unit operates correctly.

When the supply voltage is applied, all LEDs light and go off one after the other. * The unit is then ready for operation.

*During this time both outputs are switched according to the programming: ON with the NO function and OFF with the NC function.

Failure indication:

5 left LED's flashing in case of short-circuit at the output S1; 5 right LED's flashing in case of short-circuit at the output S2.

Recommended maintenance

Check the sensor tip for build-up from time to time. Clean it with a soft cloth. If necessary, build-up which adheres firmly (e.g. lime) can be removed with a common vinegar cleansing agent.

Technical data

Operating voltage [V]	20 ... 36 DC
Current rating [mA]	2 x 250; short-circuit protection; reverse polarity protection / overload protection
Voltage drop [V]	< 2.5
Current consumption [mA]	< 90
Liquids
Medium temperature [°C]	-25 ... +80
Setting range [cm/s]	3 ... 300
Greatest sensitivity [cm/s]	3 ... 60
Max. temperature gradient of medium [K/min]	300
Gases
Medium temperature [°C]	-25 ... +80
Setting range [cm/s]	200 ... 3000
Greatest sensitivity [cm/s]	200 ... 800
Response time [s]	1 ... 10
Power-on delay time [s]	15, optically indicated
Pressure rating [bar]	30
Operating temperature [°C]	-25 ... +80
Protection	IP 67 (IEC60529) / (UL50)
Shock resistance [g]	50 (DIN / IEC 68-2-27, 11 ms)
Vibration resistance [g]	20 (DIN / IEC 68-2-6, 55-2000 Hz)
Housing material	PBT-GF 20
Sensor material	stainless steel (316S12); O-ring: FPM 8x1.5 gr 80° Shore A

^1) to EN50178, SELV, PELV; referring to UL: see page 24 (Electrical connection).

Programming diagrams / Technical information

Setting of the detection range

The detection range (window) is determined by:

• Adjustment to the required maximum flow (HI-Teach) = upper limit of the window. This setting is sufficient for the majority of waterbased applications.
• Adjustment to the required minimum flow / flow standstill (LO-Teach) = lower limit of the window.

- Adjustment to maximum flow (HI-Teach)

The unit detects the current flow and sets this value as the maximum value for the LED display (LED 9).

1	Apply the operating voltage. After approx. 15s the unit is ready. Allow the medium to flow through the system at the required maximum flow rate.
2	M S >5...<10s	LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI → LO HI →
		Press the Learn/Set button and keep it pressed. The green LEDs on the right and on the left flash, after 5s the LED bar (green) fills from left to right (release the button as soon as the first LEDs light). The indication goes off briefly. The unit stores the current flow as maximum flow and passes into the operating mode.

- Adjustment to minimum flow / flow standstill (LO-Teach), optional

The unit detects the current flow and sets this value as the minimum display value for the LED display. In normal operation the first green LED (LED 0) flashes when the flow falls below this value (or when it comes to a standstill).

NOTE: The LO-Teach operation may only be carried out after the HI-Teach operation.

1	Allow the medium to flow through the system at the required minimum flow rate or bring to a standstill.
2	M S >10...<15s	Press the Learn/Set button and keep it pressed. The green LEDs on the right and on the left flash, after 5s the LED bar (green) fills from left to right
	M S	after a further 5s the LED bar (gren) fills from right to left (release the button as soon as the first LEDs on the right light). The indication goes off briefly. The unit stores the current flow as minimum flow and passes into the operating mode.

Setting of the switch points

Switch point 1 (SP1) = lower value, setting range: LED 0 ... SP2

Switch point 2 (SP2) = upper value, setting range: SP1 ... LED 9

1	1 time (= setting of SP1) 2 times (= setting of SP2)	Press the Mode/Enter button. The current switch point is indicated: LED lit: coarse setting, LED flashes: fine setting.
2	>5s	Press the Learn/Set button and keep it pressed After 5s the switch point is increased* (incremental by pressing briefly or scrolling by holding pressed). Indication: The flashing LED moves from left to right. After LED 9 has been reached the cycle starts again at LED 0. The LED which is constantly lit moves on by one position.**
3	M S LO HI	Press the Mode/Enter button briefly (acknowledgement). The set switch point becomes effective; the unit passes into the operating mode.

Decrease the switch point: Let the flashing and lit LEDs move to the maximum setting value. Then the cycle starts again at the minimum setting value.
- SP1: min. setting value = LED 0; max. setting value = LED "SP2".
- SP2: min. setting value = LED "SP1"; max. setting value = LED 9.
*Overflow: If the flashing LED and the lit LED exceed the maximum setting value, the cycle starts again at the minimum setting value.

Monitoring excess flow

With this function the position of the display window within the detection range can be defined: Shift the LED for the maximum display value to position 8, 7, 6 or 5. In the case of maximum flow all LEDs from 0 up to this LED are lit. The LEDs above the range signal excess flow. If the switch point is above this range, the unit switches in the case of excess flow.

1	3 x	LO HL 3 x	Press the Mode/Enter button three times. The current setting is indicated (green LED).
2	5 s	LO HL 5 s	Press the Learn/Set button for 5s (until LED flashes).
3	M S	LOHL M S	Press the Learn/Set button several times until the requested LED flashes (LED 8, 7, 6 or 5). Each time the button is pressed the LED moves back by one position. When it is lower than LED 5 the cycle starts again at LED 9.
4	M S	LO HL M S	Press the Mode/Enter button briefly (acknowledgement). The indication goes off briefly. The unit stores the new setting and passes into the run mode.

Please note:
The display value is reset (to LED 9) after each maximum flow rate adjustment (HI-Teach.

■ Return to factory setting

Press the Learn/Set button and keep it pressed. The green LEDs on the right and on the left flash,

after 5s the LED bar (green) fills from left to right,

after a further 5s the LED bar (green) fills from right to left,

after a further 5s the LED bar (orange) fills from left to right (release the button as soon as the first orange LEDs light).

The indication goes off briefly. All settings are returned to factory setting and the unit passes into the run mode flow.

Hysteresis function

When the flow rises, the outputs switch when the corresponding switch point (SPx) has been reached.

When the flow falls again, the output switches back when the value "SPx minus hysteresis" has been reached..

The hysteresis is considerably influenced by the choice of the operating range on the sensitivity curve of the sensor:

• In the case of adjustment to HI-Flow values in the range 0 ... 60cm/s the hysteresis is 2 - 4cm/s (values apply to water).
• In the case of adjustment to HI-Flow values above 100cm/s the hysteresis increases as the flow rises.

The typical response time of the unit is 3 ... 8s. It can be influenced by setting the LO-Teach and the switch point:

• The lower the LO-Teach or the switch point is set, the faster the unit switches on.
• The higher the LO-Teach or switch point is set, the faster the unit switches off.

LED = verte LED = orange LED rouge

Contenu

1 = BN (brun), 2 = WH (blanc), 3 = BU (bleu), 4 = BK (noir).

Consommation [mA] < 90

Milieu liquide

Tenue aux chocs [g] 50 (DIN / VEI 68-2-27, 11 ms)

Tenue aux vibrations [g] 20 (DIN / CEI 68-2-6, 55-2000 Hz)

Boitier . PBT-GF 20

Matière de la sonde . . . INOX 316L; joint torque: FPM 8x1,5 gr 80^ Shore A

1	Mettre l'appareil sous tension. L'appareil est opérationnel après env. 15s. Le débit du fluide doit être à la valeur maximale souhaité et constant.
2	M S >5...<10s	LO HI → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO HL → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LOH → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO H → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO L → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO I → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l → LO l