SFAM
10
Festo – SFAM – 2017-09c English
Consumption switching impulse [CI] with air consumption measurement
Setting NO (normally open)
Setting NC (normally closed)
CI
CI
t
t
0
Out A
1
0
CI
100 ms
[l],
[m³]
CI
CI
t
t
0
Out A
1
0
CI
100 ms
[l],
[m³]
Tab. 4
Consumption switching impulse
A threshold value for air consumption can be set with the consumption switching impulse [CI]. If the set
threshold value is reached, a switching impulse is emitted at the output Out A for 100 ms. With each
switching impulse, measurement of the air consumption is started again.
2.2.2
Change in colour
A red colour change can be set for Out B, dependent on the switching status. This allows the system
status to be seen across large distances.
The following settings can be chosen:
r.On =
Display is red when the switching output is High (1).
Display is blue if the switching output is Low (0).
r.OFF =
Display is red when the switching output is Low (0).
Display is blue if the switching output is High (1).
bLUE =
Display is always blue; the colour change function is switched off.
2.2.3
Standard conditions
The air mass flow measured and output by the SFAM refers to standard conditions. The SFAM is
calibrated at the factory to the physical standard conditions in accordance with DIN 1343 and the unit
l/min.
Note
If standard conditions and/or other units that deviate from the calibrated measurement
range with the unit l/min are used, there are corresponding characteristiclimits for the
analogue output
è
Tab. 16 in Chapter 11 Technical data.
