Festo SFAB Manual De Instrucciones página 2

Flow sensor
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This product is recognized by UL. Representative samples
of this component have been evaluated by UL and meet
applicable UL requirements.
UL approval information
Product category code QUYX2 (USA),
QUYX8 (Canada)
File number E322346
Considered standards UL 61010-1, 2nd Edition,
CAN/CSA-C22.2 No. 61010-1,
2nd Edition
UL mark
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Fitting and commissioning to be carried out by qualified
personnel only in accordance with the operating in-
structions.
Such qualified personnel must have several years of
training and experience in installing and commissioning
electrical and pneumatic industrial control systems.
• Please observe the applicable safety requirements
and standards.
Only for connection to a NEC Class 2 supply
Raccorder Uniquement a un circuit de Classe 2
This device is intended to be used with a Class 2 power
source or Class 2 transformer in accordance with UL1310
or UL1585.
As an alternative a LV/C (Limited Voltage/Current) power
source with one of the following properties can be used:
– This device shall be used with a suitable isolating
source such that the maximum open circuit voltage
potential available to the product is not more than
30 V DC and the current is limited to a value not excee-
ding 8 amperes measured after 1 minute of operation.
– This device shall be used with a suitable isolating
source in conjunction with a fuse in accordance with
UL248. The fuse shall be rated max. 3.3 A and be instal-
led in the 30 V DC power supply to the device in order to
limit the available current.
Note that, when more than one power supply or isolating
device is used, connection in parallel is not permitted.
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Extracts )* from the UL report:
Conditions of acceptability:
For use only in or with complete equipment where the
acceptability of the combination is determined by Under-
writers Laboratories Inc.
When installed in an end-product, consideration must be
given to the following:
– This component has been judged on the basis of the
creepage and clearances required in the indicated Stan-
dards, which would cover the component itself if sub-
mitted for Listing: CAN/CSA 22.2 No. 61010-1 2nd Ed.,
UL 61010-1 2nd Ed.
– The end-product shall consider that: Only the front por-
tion of the panel-mounted device has been investigated
Note
as the ultimate enclosure, Markings and documentation
do not comply with Clause 5, CAN/CSA 22.2 No.
61010-1 2nd Ed., UL 61010-1 2nd Ed.
– The need for the following shall be considered in the
end-product: Markings and documentation that comply
with Clause 5, CAN/CSA 22.2 No. 61010-1 2nd Ed., UL
61010-1 2nd Ed.
– The output connectors are not investigated for field
wiring.
– The following test shall be performed in the end-pro-
duct evaluation: Temperature (If ambient higher than
50 °C/122 °F or fluid temperature higher then
50 °C/122 °F)
– The unit is considered acceptable for use in a max. am-
bient of: 50 °C/122 °F
– IP65 in accordance to IEC 60529 was not evaluated and
shall be considered in the end-product.
– The unit shall be supplied by SELV (Safety Extra Low
Voltage Circuits) and limited energy in accordance to
UL 61010-1 or LPS (Limited Power Source) in accor-
dance to UL 60950-1.
– The unit was tested for three times overpressure of the
rated pressure, the indicatd overpressure form the stuf-
fer sheet was not taken into account and shall be consi-
dered in the final application.
)* taken over essentially without important changes
en