CKD FP Series Manual page 10

Pneumatic components (flow rate sensor)
Safety Precautions
Be sure to read this section before use. pneumatic components Refer to "Pneumatic, Vacuum
and Auxiliary Components (No. CB-024SA)" for general precautions. Although the above gen-
eral catalog states that products are not applicable for equipment or applications with direct
contact with beverages/foodstuffs, the FP2 Series products can be used in such applications
as long as they are within the range of the product specifications.
Product-specific cautions: Flow rate sensor
Working fluids
DANGER
Do not use this product with flammable fluids.
WARNING
This product cannot be used as a billing meter.
D o n o t u s e t h i s p r o d u c t f o r c o m m e r c i a l
transactions as it is not compliant with the
Measurement Act. Intended applications include
industrial sensors.
Do not use fluids which are not applicable.
Use dry gas which does not contain corrosive
elements such as chlorine, sulfur or acids, and
which is clean and does not contain dust or oil mist.
D e p en di ng on t h e f l ui d, re ta i ni n g th e fl ui d
for long periods could adversely affect the
performance. Do not seal the fluid in the pipe for
long periods of time.
Working pressure/flow rate range
A p p l i c a t i o n s e x c e e d i n g t h e m a x . w o r k i n g
pressure and specified flow rate range may
result in faults.
When using a valve on the primary side of this
product, use only an oil-prohibited specification
valve. This sensor could malfunction or fail if
exposed to splattering grease, oil, etc. As friction
powder may be generated depending on the
valve, mount a filter to prevent the powder from
entering the sensor.
NS-QFS Series
Design/selection
Working environment
DANGER
Explosion-proof environments: Never use this product
in an explosive gas atmosphere. The structure is not
explosion-proof, and explosions or fires could occur.
WARNING
Corrosive environment: Do not use this product in an
atmosphere containing corrosive gases such as sulfur dioxide.
A m b i e n t / f l u i d t e m p e r a t u r e s : U s e a t a m b i e n t / f l u i d
temperatures within the specified range of 5 to 50°C. Even
if the temperature is within the specified range, do not use
this product if the ambient temperature and fluid temperature
could suddenly change and cause dew to condense.
Drip-proof environment: The degree of protection of this product is
equivalent to IP40. Do not install this product where water, salt, dust,
or swarf is present or in a pressurized or depressurized environment.
The product cannot be used with large temperature variations or high
temperature/humidity since condensation may occur inside the body.
Flow rate unit
CAUTION
This product's flow rate is measured at a mass flow rate unaffected by
temperature or pressure. The unit is L/min, but this is the display when the
mass flow rate is converted to volumetric flow rate at 20°C, 1 atmosphere
(101 kPa) relative humidity 65%RH.
Overflow
CAUTION
The sensor can handle an overflow double the measured range. If
dynamic pressure is applied near the maximum working pressure
(when a pressure difference exceeding the max. working pressure
is applied between primary and secondary sides), the sensor may
operate abnormally. If dynamic pressure is applied, such as when a
workpiece is filled for leakage inspection, provide a bypass circuit
or restrictor so that dynamic pressure is not applied to the sensor.
Other
CAUTION
T h e f l o w p a t h i s n o t c o m p l e t e l y f r e e o f d u s t
generation. A final clean filter should be used in
circuits where dust generation could be a problem.
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