Festo SFAB - User Manual

Translation of the original instructions
1 About this document
1.1 Applicable documents
All available documents for the product èwww.festo.com/pk.
2 Safety
2.1 General safety instructions
– Only use the product in original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– Observe labelling on the product.
– Condensation, oil mist, foreign matter and other impurities in the compressed
air can damage the product. Only use media in accordance with the specifica
tions èTechnical data.
– Comply with specified critical limits.
– Take into consideration the ambient conditions at the location of use.
– The product is suitable for industrial purposes only. Measures for radio inter
ference suppression may be necessary in residential areas.
Return to Festo
Hazardous substances can endanger the health and safety of personnel and
cause damage to the environment. To prevent hazards, the product should only
be returned upon explicit request by Festo.
– Consult your regional Festo contact.
– Complete the declaration of contamination and attach it to the outside of the
packaging.
– Comply with all legal requirements for the handling of hazardous substances
and the transport of dangerous goods.
2.2 Intended use
The SFAB is designed to monitor changes in the flow rate and air consumption of
gaseous media in piping systems or terminals in industry.
2.3 Training of qualified personnel
– Installation, commissioning, maintenance and disassembly should only be
conducted by qualified personnel.
3 Further information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions
èwww.festo.com.
5 Product description
5.1 Product design
1
Supply port 1
2
Display
3
B pushbutton
4
Edit button
5
A pushbutton
6
Plug for the electrical connection
(M12)
7
Hole for plate mounting
8
Supply port 2
9
Mounting slide for Hrail and wall
mounting (rear)
Fig. 1 SFAB
6 Function and application
6.1 Functional principle
The SFAB uses a thermal measurement method. Here, the amount of heat drawn
from a heated surface of the sensor by the medium flowing past it is calculated.
Through the amount of heat removed, the flow rate or accumulated air consump
tion is determined and shown on the display. The connection to higherlevel sys
tems is implemented through 2 binary outputs (OutA/OutB) and one analogue
output. Switching points can be defined for both binary outputs. Switching points
for both binary outputs are possible for flow rate measurement, a consumption
switching pulse for output A (OutA) is possible for cumulative air consumption
measurement. The combination of cumulative air consumption measurement
(OutA) and flow rate measurement (OutB) is possible. The flow value is output via
the analogue output.
7 Assembly
7.1 H-rail (manifold assembly)
Fig. 2 Mounting on Hrail
1. Maintain lateral distance x = 10mm to earthed surfaces.
2. Hang SFAB in Hrail.
3. Press SFAB in the direction of the arrow.
Ä
SFAB snaps into place.
8110112
SFAB
Flow sensor
8110112
201904c
[8110114]
Instructions| Operating
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 3470
www.festo.com

Summary

Product Description

Product Design

Details the physical components and their layout.

Functional Principle and Assembly

Functional Principle

Explains the thermal measurement method and how flow is calculated.

H-rail Mounting

Steps for mounting the SFAB on a H-rail.

Assembly and Installation Methods

Wall and Plate Mounting

Instructions for mounting the SFAB on a wall or using a plate.

Pneumatic and Electrical Installation

Guidelines for pneumatic connections and electrical safety.

Commissioning Binary Outputs

Configure Switching Functions and Pulses

Steps to set switching points, hysteresis, and consumption pulses for binary outputs.

Display Symbols and Operation Modes

Display Symbols and Preparation

Explains display symbols and steps before commissioning.

RUN and SHOW Mode Operations

Standard operating mode and reviewing settings in SHOW mode.

EDIT Mode Configuration

Entering EDIT Mode

Steps to activate the EDIT mode for configuration.

Setting Flow Rate Measurement

Detailed steps to set up flow rate measurement for outputs.

Advanced Configuration Settings

Air Consumption & Colour Change Settings

Configure air consumption measurement and OutB display colour.

Special Menu: Conditions, Units, Filters

Adjust standard conditions, units, and filter settings in the special menu.

Special Menu: Output & Security

Set PNP/NPN outputs and establish a security code in the special menu.

Teaching and Special Modes

Teaching Switching Variables

Process for teaching switching points for outputs using threshold or window comparators.

RECORDER Mode and Factory Reset

Performing air consumption measurement and resetting to factory settings.

Technical Data and Specifications

General and Measured Variable Data

General specifications, approvals, and measured variables for the SFAB series.

Operational and Output Parameters

Parameters related to pressure, temperature, media, and output signals.

Error Analysis and Certifications

Explains error calculation, display errors, and lists certifications.

Festo SFAB Specifications

General

Operating pressure	0 bar to 10 bar
Ambient temperature	-10°C to +60°C
Type	SFAB
Color	Black
Weight	20 g