SI0106 - Detector IFM - Free user manual and instructions
Find the device manual for free SI0106 IFM in PDF.
User questions about SI0106 IFM
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
Download the instructions for your Detector in PDF format for free! Find your manual SI0106 - IFM and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. SI0106 by IFM.
USER MANUAL SI0106 IFM
natural_image
Technical line drawing of a mechanical component with a shaft and threaded end (no text or symbols)Kurzanleitung
- Installieren
m = 311
natural_image
Pure architectural or structural diagram with vertical columns and horizontal beams, no text or symbols presentLED = grün LED = orange LED = rot
Inhalt
natural_image
Technical line drawing of a mechanical component with a circular head and threaded shaft (no text or symbols)
text_image
2Brief adjustment instructions
- Installation
Mounting → page 24, electrical connection → page 26.
• 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.

flowchart
graph TD
A["Start: M S"] --> B["Step 1: >5...<10"]
B --> C["Step 2: LO HI"]
C --> D["Step 3: LO HI"]
D --> E["Step 4: LO HI"]
E --> F["End"]
- The unit is ready for normal operation.
Further setting options ( page 27)
- The HI-Teach is sufficient for the majority of waterbased applications. Optional: adjustment to minimum flow (LO-Teach).
- Setting of the switch point (for changing the reaction time and excess gain).
- Setting for monitoring and optical indication of excess flow.
- Changing of the function of the output relay.
- Reset to factory settings.
Controls and visual indication

text_image
MODE / ENTER FLOW RATE LEARN / SET setting buttons LO HI 103 279 4 6 8 function displayFunction display (Run mode)

text_image
2 4 6 8current flow within the display range _10 (LED bar green)

text_image
2 4 6 8 10excess flow (LED 9 flashes)

natural_image
Pure architectural or structural diagram with vertical columns and horizontal beams, no text or symbols presentunderflow (LED 0 flashes)
Indication of the switch point (SP): LED orange: flow ≥SP; LED red: flow < SP
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

flowchart
graph TD
A["Run mode"] --> B["Unit functions (ENTER button)"]
B --> C["Setting the switch point"]
C --> D["1x >5s 1x"]
C --> E["Monitoring excess flow"]
E --> F["2x 5s ... 1x"]
A --> G["Adjustment / factory setting (SET button)"]
G --> H["Adjustment to maximum flow >5...<10s"]
G --> I["Adjustment to minimum flow >10...<15s"]
A --> J["Factory reset >15...<20s"]
J --> K["Change output function: (normally open / normally closed)"]
K --> L["3x >5s 1x"]
LED = green LED = orange LED = red
Contents
| Function and features | page 23 |
| Installation | page 24 |
| Electrical connection | page 26 |
| Programming | page 27 |
| Installation and set-up / Operation / Maintenance | page 29 |
| Technical data | page 29 |
| Programming diagrams / Technical information | page 30 |
Function and features
The flow monitor
• detects the flow velocity in liquid and gaseous media
- switches the output relay according to the programming,
| normally open | relay energised when the switch point has been reached |
| normally closed | relay de-energised when the switch point has been reached |
(for programming →page 28)
- 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).

natural_image
Technical line drawing of a mechanical component with a circular head and threaded shaft (no text or symbols)
text_image
2To 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 x pipe diameter downstream (B).

text_image
3 B min. 3 x D min. 5 x D D A
text_image
①2 3 Athread M18 x 1.5
- 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).
- Screw the suitable adapter (2) onto the process fitting (1).
- 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 G1⁄4 adapter | mounting dimension with G1⁄2 adapter |
![]() | ![]() | ![]() |
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.
Caution: For the output circuit the same protective measures as for the supply circuit must be taken. Insert a miniature fuse according to IEC60127-2 Sheet 1 ( ≤ 5 A fast acting).
The permissible potential difference between supply and output circuit is max. 300V.
Disconnect power before connecting the unit.
Wiring:

text_image
1 L1 2 N A 3 n.c. VDD 4 B 5A: supply circuit
B: output circuit
— · — · — : safe separation

connector view (sensor)
ifm-sockets are available as accessories:
Order no. E11248, E11249, E11250, E11251.
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 the output is switched according to the programming: relay energised with the NO function and de-energised with the NC function.
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 point
- Press the Mode/Enter button briefly.
- 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 twice.
- 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.
■Change output function: (normally open / normally closed)
- Press the Mode/Enter button three times.
- Press the Learn/Set button for 5s,
- keep the Learn/Set button pressed or press the button several times until the requested function is set (OUT = normally open when 3 LEDs on the right and 3 LEDs left are lit green. OUT = normally closed, when the 4 LEDs in the middle are lit in red).
- 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 (press the Mode/Enter button once),
- the setting of the function “monitoring excess flow” (press the Mode/Enter button two times),
- the programming of the output relay (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 the output is switched according to the programming: relay energised with the NO function and de-energised with the NC function.
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
| Nominal voltage [V] | 90 ... 240 AC (45...65 Hz) |
| Voltage tolerance [%] | -5 / +10 |
| Operating voltage [V] | 85 ... 265 AC |
| Power consumption [VA] | 3.5 |
| Switching power of relay | 3A (250V AC / 30V DC) |
| Number of switching cycles: | 20 million mechanically |
| Switching cycles with 3 A load: | 100.000 electrically |
| Relay type: | contact closed at work |
| 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 / II |
| 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 | |
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.
- Additionally: adjustment to the required minimum flow / flow standstill (LO-Teach) = lower limit of the window (optional).

line
| sensor signal | flow velocity | | ------------- | ------------- | | 0 | 0 | | 1 | ~0.5 | | 2 | ~1.0 | | 3 | ~1.5 | | 4 | ~2.0 | | 5 | ~2.5 | | 6 | ~3.0 | | 7 | ~3.5 | | 8 | ~4.0 | | 9 | ~4.5 |- 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 | ![]() | ![]() | 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. |
| >5...<10s | ![]() | ||
![]() | ![]() | ||
- 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 | ![]() | 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 rightafter 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 point
The switch point is preset at the factory (LED 7). The setting influences the reaction time of the unit.
- High switch point = fast reaction in the case of flow decrease.
- Low switch point = fast reaction in the case of flow increase.
| 1 | 1 x | Press the Mode/Enter button briefly. 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 | ![]() | Press the Mode/Enter button briefly (acknowledgement).The indication goes off briefly.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.
**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 | ![]() | Press the Mode/Enter button twice. The current setting is indicated (green LED). |
| 2 | ![]() | Press the Learn/Set button for 5s (until LED flashes). |
| 3 | ![]() | 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 | ![]() | 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.
■Change output function: (normally open / normally closed)
The set function is displayed as below:
| Normally open | ![]() | The 3 LEDs on the right and left are lit in green. |
| Normally closed | ![]() | The 4 LEDs in the middle are lit in red. |
| 1 | ![]() | Press the Mode/Enter button three times.The current setting is indicated (here normally open). |
| 2 | ![]() | Press the Learn/Set button and keep it pressed,after 5s the function changes (here: normally closed)Each time the Learn/Set button is pressed the function changes again. |
| 3 | ![]() | Press the Mode/Enter button briefly (= acknowledgement).The unit then passes into the operating mode. |
Unit supplied: normally open.
■Return to factory setting

flowchart
graph TD
A[">15...<20s"] --> B["LO HI"]
B --> C["LO HI"]
C --> D["LO HI"]
D --> E["LO HI"]
E --> F["LO HI"]
F --> G["LO HI"]
G --> H[">15...<20s"]
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

line
| Flow Level | Time (t) | | ---------------- | -------- | | Minimum flow | 0 | | Maximum flow | t | | hysteresis | 0 |When the flow rises, the output switches when the switch point (SP) has been reached.
When the flow falls again, the output switches back when the value "SP 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.
natural_image
Pure architectural or structural diagram with vertical columns and horizontal beams, no text or symbols present☐ LED = verte LED = orange LED ☒ rouge
Contenu
natural_image
Technical line drawing of a mechanical connector or fitting (no text or symbols)2










1 x
>5s









