KROHNE OPTISONIC 6400 Handbook page 47

Portable ultrasonic clamp-on flowmeter
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OPTISONIC 6400
• If the following maximum load resistance R
reduced accordingly by parallel connection of R:
f ≤ 100 Hz: R
f ≤ 1 kHz: R
f ≤ 10 kHz: R
• The minimum load resistance R
R
L, min
Figure 4-8: Pulse frequency output active P
INFORMATION!
Any connection polarity.
Galvanically isolated.
Status output
≤ 32 VDC
• U
ext
• I ≤ 100 mA
• R
L, max
R
L, min
• open:
I ≤ 0.05 mA at U
closed:
U
0, max
U
0, max
• The output is open when the device is de-energized.
Figure 4-9: Status output / limit switch passive S
08/2011 - 4000972602 - MA OPTISONIC 6400 R02 en
= 47 kΩ
L, max
= 10 kΩ
L, max
= 1 kΩ
L, max
= (U
- U
) / I
ext
0
max
C+
C-
D
D-
= 47 kΩ
= (U
- U
) / I
ext
0
max
= 32 VDC
ext
= 0.2 V at I ≤ 10 mA
= 2 V at I ≤ 100 mA
ELECTRICAL CONNECTIONS
is exceeded, the load resistance R
L, max
is calculated as follows:
L, min
a
p
www.krohne.com
4
must be
L
47

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