SA3001 - Flow sensor IFM - Free user manual and instructions

Product Type	Flow controller (flow sensor)
Brand	IFM
Model	SA3001
Nominal pipe diameter	DN40 to DN100
Number of switching outputs	2
Display	LED bar: green (current flow), yellow (output switched), red (output not switched)
Power supply	SELV/PELV according to EN50178, overload protection required
Electrical connection	3 wires: BN (brown, L+), WH (white, output), BU (blue, L-)
Fluid temperature	0 to 80 °C
Upstream mounting distance	Min. 5 × pipe diameter
Downstream mounting distance	Min. 3 × pipe diameter
Mounting angle on horizontal pipe	45°
Installation depth	According to pipe wall thickness (flush-mounted)
Threshold setting	S1 and S2 adjustable in steps of 10% (display) or 2% (fine tuning)
Fault indication	5 LEDs on left flash: short circuit S1; 5 LEDs on right: short circuit S2
Settings lock	Press both buttons for 10 s to lock/unlock
Maintenance	Clean the probe with a soft cloth; use an acetic acid product for limescale deposits
Installation	Reserved for an electrician; disconnect power before connection
Fluid conditions	Laminar flow
Probe material	Not specified (likely stainless steel)

Frequently Asked Questions - SA3001 IFM

How to set switching threshold S1?

Press and hold the corresponding button. The LEDs display the current value in steps of 10% (LED on) and 2% (LED flashing). Release the button to automatically increment or press briefly to confirm the value.

What to do in case of a short circuit on an output?

In case of a short circuit on S1, the 5 left LEDs flash; for S2, the 5 right LEDs flash. Correct the wiring fault and check the electrical installation.

How to lock the device to prevent accidental operation?

Press both buttons simultaneously for 10 seconds. The display turns off briefly to confirm locking. Repeat the procedure to unlock.

What minimum distance should be maintained upstream and downstream of the sensor?

Upstream, leave at least 5 times the pipe diameter; downstream, at least 3 times the diameter. These distances prevent flow disturbances.

How to clean the flow sensor probe?

Use a soft cloth to remove deposits. For limescale, apply a common acetic acid cleaning product, then rinse.

Can the device be mounted on a horizontal pipe?

Yes, but the weld-on adapter must be positioned at a 45° angle to the pipe axis.

What is the measurement accuracy of the SA3001?

The manual mentions a typical measurement error for water at different temperatures: for example, at 25 °C the error is 25 units (not specified in %). For precise values, consult the full manual.

How to interpret the colors of the LED bar?

Green LEDs indicate the current fluid velocity. A yellow LED means the corresponding output is switched (threshold reached). A red LED means the output is not switched.

Can I use this sensor with fluids other than water?

The sensor is calibrated for water. For other fluids, performance may vary. Consult the manual for usage conditions.

What to do if the device does not power on after connection?

Check the power supply (SELV/PELV) and wire connections (BN, WH, BU). Ensure the installation complies with EN50178.

USER MANUAL SA3001 IFM

Technical line drawing of a mechanical component with threaded fastener and bolted joint (no text or symbols)

Inhalt1. Bestimmungsgemäße Verwendung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. Bedien- und Anzeigeelemente . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Montage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elektrischer Anschluß . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Einstellen der Schaltpunkte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inbetriebnahme / Betrieb / Wartung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DEUTSCH

Contents1. Function and features . . . . . . . . . . . . . . . . . page 102. Controls and visual indication . . . . . . . . . . . . . . . page 103. Installation . . . . . . . . . . . . . . . . . . . . . . page 114. Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . page 135. Setting the switch points . . . . . . . . . . . . . . . . . . . . . . . . . . page 146. Installation and set-up / operation / maintenance . page 15

ENGLISH

Technical diagram of a mechanical assembly with rotating components (no text or symbols)

Schritt 3

Three technical line drawings of mechanical components with directional arrows indicating movement (no text or symbols)

Technical line drawing of a mechanical component with a wrench and nut, no text or symbols present

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

Abstract graphic with a black upward arrow and gray vertical bars (no text or symbols)

Abstract graphic with a black upward arrow and vertical bars, no text or symbols present.

1. Functions and features

The flow monitor detects the flow velocity of water.

Two switching outputs provide a signal if the respectively set flow velocity has been reached.

In addition a row of LED's indicates the current flow velocity.

- For pipes with nominal widths between DN 40 ... DN 100.

Typical measurement errors for water and different temperatures of the medium.

2. Controls and visual indication

3. Mounting

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 x pipe diameter downstream (B).

(This information refers to laminar flow.)

min. 3 x D min. 5 x D D A B

Step 1

Weld the adapter into the pipe. The installation depth depends on the pipe wall thickness. The bush should be inserted so that the figure corresponding to the wall thickness is flush with the outside pipe wall and can be seen from all sides.

In the case of horizontal pipes the bush should be welded at an angle of 45^ .

10 8 6 4 4

45° 45°

Step 2

Insert the flow monitor with lock nut, O-ring seal and compression washer into the bush and screw it in completely using the full thread.

O-ring seal compr. washer lock nut

Technical line drawing of a mechanical assembly with no visible text or symbols

Step 3

Position the flow monitor (in the longitudinal pipe axis or transverse to it) and fasten the lock nut.

Three schematic diagrams of mechanical or electrical components with upward arrows indicating flow or movement (no text or symbols)

Technical line drawing of a mechanical component with a wrench and nut (no text or symbols)

4. Electrical connection

The unit must only be mounted 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.

Wiring:

graph TD
    A["pnp units npn units"] --> B["1 BN"]
    A --> C["4 BK"]
    A --> D["2 WH"]
    A --> E["3 BU"]
    B --> F["L+"]
    C --> G["S2 S1"]
    D --> H["L-"]
    E --> I["L-"]

graph TD
    A["Component"] --> B["1 BN"]
    A --> C["4 BK"]
    A --> D["2 WH"]
    A --> E["3 BU"]
    B --> F["L+"]
    C --> G["S1"]
    C --> H["S2"]
    D --> I["Ground"]
    E --> J["L-"]

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 (= ON).

5. Setting the switch points

Display:

	[22HA]	lit LED = 10% value of the switching point	yellow (YE) = output switched; red (RD) = output not switched
	[T2KY]	flashing LED = 2% value of the switching point
[22SY]	LED green = last flow value indicated

Abstract graphic with a black upward arrow and gray vertical bars (no text or symbols)

Press the button and keep it pressed (here setting of S1).

The current switch point is indicated in steps of 2% (here: 30 + 6 = 36 cm/s ),

after 5s the value is increased* (incremental by pressing briefly or scrolling by holding pressed).

Here: 36 - 39 - 42 cm/s

1

Abstract graphic with a black upward arrow and gray vertical bars (no text or symbols)

Press for a short time (= acknowledgement for S1).

The set value becomes effective; the unit is reset to 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.

Locking/unlocking

The unit can be electronically locked to prevent unwanted adjustment of the set parameters: Press both setting buttons for 10s. Indication goes out briefly (acknowledgement of locking / unlocking). Units are delivered from the factory in the unlocked state.

6. 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 (= ON).

Indication in the operating mode

	LED's green = current flow rate (here: 90 - 105 cm/s).
	1st LED flashes = no flow
	yellow LED = switch point / output switched here: output 1 switched
	red LED = switch point / output not switched here: output 2 not switched

Faults displayed during operation:

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.

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 line drawing of a mechanical assembly with no visible text or symbols

Pas 3

Three technical line drawings of mechanical components with upward arrows indicating motion (no text or symbols)

Technical line drawing of a mechanical component with a wrench and nut (no text or symbols)

Abstract graphic with a black upward arrow and gray circular elements above white vertical bars (no text or symbols)

Abstract graphic with a black upward arrow and vertical bars, no text or symbols present.