Festo SFAW User manual
SFAW
Flow sensor
Operating instruc-
tion
8167776
2022-09c
[8167778]
Translation of the original instructions
IO-Link® is a registered trademark of its respective trademark holder in certain countries.
Festo — SFAW — 2022-09c
3
Table of contents
1 Applicable Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Training of qualified personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 UL/CSA certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1.1 Product design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1.2 Display components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2.1 Operating statuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2.2 Switching outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2.3 Analogue output OutD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2.4 Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.5 Functional principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.6 Security code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.7 Minimum value and maximum value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Inlet situation and outlet situation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1.1 Mounting position/inflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.1 Installing sensor without mounting accessories. . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.2 Mounting sensor with wall mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Tubing sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 Changing fluid connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1 Installation, electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1 Switching on the sensor in RUN mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2 Displaying parameters in SHOW mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2.1 Starting SHOW mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.2.2 Show and reset minimum value/maximum value. . . . . . . . . . . . . . . . . . . . . . . 21
7.2.3 Display mean value and reverse related filter time constants. . . . . . . . . . . . . 21
7.3 Configuring the sensor in EDIT mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.3.1 Entering the security code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.2 Setting the switching characteristics of the switching outputs. . . . . . . . . . . . 24
7.3.3 Setting display units and analogue output. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.4 Changing sensor settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.3.5 Replicating parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4 Teach-in switching points in TEACH mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.5 Measure volume manually in RECORDER mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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Festo — SFAW — 2022-09c
8 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1 Reset parameters to factory setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Fault clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.1 Technical data of UL/CSA certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
12.2 Hole patterns and dimensional drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
12.2.1 Hole pattern for direct mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
12.2.2 Hole pattern for wall mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
12.2.3 Dimensional drawing of customer-specific fluid connections . . . . . . . . . . . . . . 36
Festo — SFAW — 2022-09c
Safety
5
1 Applicable Documents
All available documents for the product è www.festo.com/sp.
2Safety
2.1 Safety instructions
–Only use the product in its original condition without unauthorised modifications.
–Only use the product if it is in perfect technical condition.
–Do not use the product in combination with flammable, caustic, vapour-emitting or other media
hazardous to health.
–Take into account the ambient conditions at the location of use.
–Only use media in accordance with the specifications è Technical data.
–Foreign matter and other contaminants in the operating medium may damage the product and
cause incorrect measurements and malfunctions.
–Check the operating medium to determine the media compatibility with the materials it contacts.
–Observe the identifications on the product.
–Remove all transport packaging.
2.2 Intended use
The flow sensor monitors the flow rate, volume and temperature of liquid media in piping systems or
terminal devices in industry.
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can evaluate the work and
detect dangers.
The technicians have knowledge and experience in handling fluidic systems in the intended area of
application.
2.4 UL/CSA certification
In combination with the UL inspection mark on the product, the information in this section must also
be observed in order to comply with the certification conditions of Underwriters Laboratories Inc. (UL)
for USA and Canada.
UL/CSA approval information
Product category code QUYX, QUYX7
File number E322346
Considered standards UL 610101, CAN/CSA-22.2 No. 61010-1
UL mark
Tab. 1: UL/CSA certification information
Only for connection to a NEC/CEC Class 2 supply.
6
Festo — SFAW — 2022-09c
Product overview
WARNING
The unit shall be supplied by a power source which fulfils the requirements on a limited-energy
circuit in accordance to IEC/EN/UL/CSA 61010-1 or on a Limited Power Source (LPS) in accordance to
IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA 62368-1 or a Class 2 circuit in accordance to NEC or CEC.
3Additional information
–Contact the regional Festo contact if you have technical problems è www.festo.com.
–Accessories and spare parts è www.festo.com/catalogue.
4 Product overview
4.1 Structure
4.1.1 Product design
1
3
4
5
678
2
Fig. 1: Control elements and connection elements
1
Fluid port 1, input, rotatable
2
Locking plate
3
Fluid port 2, output, rotatable
4
Display, rotatable
5
Pushbutton [B]
6
[Edit] key
7
Pushbutton [A]
8
Electrical connection
Festo — SFAW — 2022-09c
Product overview
7
4.1.2 Display components
1
2 2
3
4
56
Fig. 2: LCD display
1
Bar graph for input signal InA
2
Output display
3
Main display, e. g. measured value
4
Bar graph for input signal InC or InD
5
Lower display, e.g. unit
6
Status information/input display
Symbols on the display
Example for
LCD display
Meaning
Output display
‘OutA’ Switching output OutA selected, flashes with active IO-Link
‘OutA’ Switching output OutA set
‘OutC’ Switching output OutC selected
‘OutC’ Switching output OutC set
‘OutB’ Switching output OutB selected
‘OutB’ Switching output OutB set
‘OutD’ Analogue output OutD selected
‘OutD’ Switching output OutD set
Information/input display
Input signal InA: graphic display of the current measured value related to the
maximum measured value of the measuring range
Input signal InC: graphic display of the volume measurement
‘InA’ Input signal InA selected
‘InC’ Input signal InC selected
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Festo — SFAW — 2022-09c
Product overview
Example for
LCD display
Meaning
‘InB’ Input signal InB selected
‘Lock’ Security code activated
‘Spec’ Special menu activated
Tab. 2: Symbols on the display
Example for LCD display Meaning
Main display Lower display
Measured value indicator and unit in the RUN mode
‘17.3’ ‘l/min’ Measured value indicator and unit
Menu for the switching outputs
‘Edit’ ‘Flow’ Edit menu for the switching outputs
_I¯ ‘Fctn’ Setting the switching function: threshold value comparator
_I¯I_ ‘Fctn’ Setting the switching function: window comparator
‘18.0’ ‘SP’ Value of switching point, only for threshold value compa-
rator
‘8.0’ ‘SP.Lo’ Value of lower switching point, only for window comparator
‘12.2’ ‘SP.Hi’ Value of upper switching point, only for window comparator
‘2.8’ ‘HY’ Hysteresis value
‘N/O’ ‘logic’ Switching characteristics of the switching outputs:
‘NO’ = N/O contact, ‘NC’ = N/C contact
‘bLUE’ ‘COLR’ Display colour:
‘bLUE’ = blue, colour change function deactivated
‘R.ON’ = red when switching output set
‘R.OFF’ = red when the switching output not set
‘200’ ‘PULS’/‘MSEC’ Width of the volume pulse
Menu for the analogue output
‘l/min’ ‘Flow’/‘Unit’ Display unit for the flow measurement
‘1_5V’ ‘Out’ Analogue output, switchable between ‘0_10V’, ‘1_5V’,
‘4_20MA’
‘93.0’ ‘In.Hi’/‘%’ Scaling of the analogue output: set end value of the flow
rate characteristic or temperature characteristic, specified in
% FS
‘3.1’ ‘In.Lo’/‘%’ Scaling of the analogue output: set start value of the flow
rate characteristic or temperature characteristic, specified in
% FS
Festo — SFAW — 2022-09c
Product overview
9
Example for LCD display Meaning
Main display Lower display
‘Ltr’ ‘VOL’/‘Unit’ Display unit for volume measurement
‘°C’ ‘tEMP’/‘Unit’ Display unit for temperature measurement
Menu for extreme values and mean values
‘5.1’ ‘MIN’/‘l/Min’ Minimum measured flow rate since switch-on or the last
reset
‘30.8’ ‘MAX’/‘l/Min’ Maximum measured flow rate since switch-on or the last
reset
‘20.2’ ‘MIN’/‘°C’ Minimum measured temperature since switch-on or the last
reset
‘50.5’ ‘MAX’/‘°C’ Maximum measured temperature since switch-on or the last
reset
‘20.8’ ‘AVER’/‘l/Min’ Average of the flow measurement, filter time constant
switchable between 650 ms, 1200 ms, 2500 ms
Menu for the device settings in the special menu
‘1200’ ‘Filt’ Value of the filter time constant for the flow rate measure-
ment signal
‘10’ ‘Eco’ Economy mode: time after which the display background
lighting is switched off
‘PNP’ ‘bin’/‘Out’ Switchover of the switching outputs between PNP and NPN
‘FLOW’ ‘bin’/‘Pin4’ Switchover of the switching signal at pin 4 between flow
monitoring and volume pulse
‘FLOW’ ‘bin’/‘Pin2’ Switchover of the switching signal or the analogue output
signal at pin 2 between flow rate and temperature moni-
toring
‘FLOW’ ‘ANLG’/‘Pin5’ Switchover of the analogue output signal at pin 5 between
flow measurement and temperature measurement
‘OFF’ ‘Lock’/‘Code’ Activation and specification of the security code
‘OFF’ ‘MASt’ Activation of the IO-Link master function for replication of
parameters
Tab. 3: Example for LCD display
10
Festo — SFAW — 2022-09c
Product overview
4.2 Function
4.2.1 Operating statuses
Operating status Function
RUN mode –Basic state after the operating voltage has been applied.
–Display of the current measured value.
–Display of the selected inputs and outputs.
–Switchover between the measured variables of flow rate, volume and
temperature.
SHOW mode –Display of current settings of the switching outputs and analogue
output.
–Display and reset of the minimum and maximum values.
EDIT mode –Setting or modification of parameters.
TEACH mode –Acceptance of the current measured value to specify switching points.
RECORDER mode –Manual measurement of the accumulated volume.
Tab. 4: SFAW operating statuses
4.2.2 Switching outputs
4.2.2.1 Switching functions
Threshold value comparator in the flow measurement for OutA or OutD and in the temperature
measurement for OutB
Function Normally open contact (N/O) Normally closed (N/C contact)
Switching function:
–1 switching point (SP)
TEACH mode1):
–2 teach points (TP1, TP2)
–SP = ½ (TP1 + TP2)
1) Only with flow measurement
Tab. 5: Threshold value comparator: setting of switching point SP and hysteresis HY
Table of contents
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