SI0104 - Flow sensor IFM - Free user manual and instructions

USER MANUAL SI0104 IFM

• The HI-Teach is sufficient for the majority of waterbased applicati- ons. Optional: adjustment to minimum flow (LO-Teach).

• Setting for monitoring and optical indication of excess flow.

• Reset to factory settings.

• 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 maximmum flow rate (HI).

• The unit is ready for normal operation. 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. LO HI LO HI HILO >5...<10

• 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) Setting buttons20 701891/00

>5...<10s>10...<15s>15...<20s Adjustment to minimum flow Adjustment to maximum flow Unit functions (ENTER button) Adjustment / factory setting (SET button) Monitoring excess flow Run mode LED = green LED = orange LED = red Menu structure Factory resetThe flow sensor

• detects the flow velocity in liquid media,

• converts it into an analog output signal (4 ... 20mA),

• 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: - Excess flow: LED 9 flashes if the flow is considerably higher (2 LEDs) than the display range; output current > 20mA. - Underflow / flow standstill: LED 0 flashes if the flow is lower than the display range. The output signal corresponds to the characteristic curve of the sensor. Like the row of LEDs it indicates the relative flow veloci- ty within the detection range set. Internally the signal change between LO and HI is divided into 10 parts and displayed by the row of 10 LEDs and the cur- rent output.

LO HI sensor signal output signal in mA characteristic curve flow velocity LED Function and featuresThe unit is adaptable for various process fittings (adapters to be orde- red separately as accessories).

• In the case of horizontal pipes mount the unit from the side, if pos- sible (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 mon- itor 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 down- stream (B).

Installation1. 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).

2. Screw the suitable adapter (2) onto the process fitting (1).

3. 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 adapterThe 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. Wiring: 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 signal is 20mA. If the operating voltage is too low, the output signal passes to 0mA.

Core colours of ifm sockets: 1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black) n.c. = not connected

connector view (sensor) Electrical connection■■ Setting of the detection range HI-Teach

• Allow the medium to flow through the system at the required maxi- mum flow rate.

• Press the Learn/Set button for >5...<10s (= adjustment to maxi- mum flow / upper limit of the detection range). Optional: LO-Teach The HI-Teach is sufficient for the majority of waterbased applica- tions. Optional: adjustment to minimum flow.

• Allow the medium to flow through the system at the required mini- mum flow rate or bring flow to a standstill.

• Press the Learn/Set button for >10...<15s (= adjustment to mini- mum flow or flow standstill / lower limit of the detection range).

Monitoring excess flow

• Press the Mode/Enter button once.

• 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.

ENGLISH Programming■■ 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. With the unit in the locked state indication goes out briefl when you press the Mode/Enter button. 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 signal is 20mA. 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.

Installation and set-up / Operation / MaintenanceTechnical data

to EN50178, SELV, PELV; referring to UL: see page 24 (Electrical connection).■■ 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 appli- cations.

• 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).

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. LO HI LO HI HILO >5...<10s

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. 2468103579LO HI 2468103579LO HI2468103579LO HI flow velocity sensor signal Programming diagrams / Technical information

S• 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.

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 (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. LO HI LO HI HILO LO HI >10...<15s

Allow the medium to flow through the system at the required minimum flow rate or bring to a standstill.

S■■ 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 dis- play 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. The output signal indicates the maximum flow and excess flow. The output current for maximum flow/excess flow depends on the position to which the LED for the maximum display value has been shifted.

LO HI 4mA 20mA LED for maximum value output signal for maximum flow [mA] output signal for excess flow [mA]

LED 5 LED 6 LED 7 LED 8 18.4 ... 20 flow velocity sensor signal excess flow maximum flowSetting: Please note: The display value is reset (to LED 9) after each maximum flow rate adjustment (HI-Teach).

Press the Mode/Enter button once. The current setting is indicat- ed (green LED). Press the Learn/Set button for 5s (until LED flashes). LO HI LO HI 1 x

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. LO HI

Press the Mode/Enter button briefly (acknowledgement). The indication goes off briefly. The unit stores the new setting and passes into the run mode. HILO

5s■■ 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, The indication goes off briefly. All settings are returned to factory setting and the unit passes into the run mode flow. LO HI LO HI HILO LO HI after a further 5s the LED bar (orange) fills from left to right (release the button as soon as the first orange LEDs light). LO HI >15...<20s