6.3.3.
electrical characteristics
12-36 VDC
Supply voltage (V+)
Current consumption
•
Own consumption: < 4 mA
•
Consumption with load: < 1A
Protection against:
reversed polarity
yes
voltage peaks
yes
short-circuits
yes, for the pulse output
Pulse output
(transistor)
•
version without
•
NPN as default setting; (PNP on
current output
request), open collector, 5 mA min.,
700 mA max., NPN output: 0,2-36 VDC
•
version with cur-
•
PNP as default setting; (on request:
rent output
NPN for the pulse output and sink-
ing mode for the current output), open
collector, 5 mA min., 700 mA max.,
PNP output: supply voltage (V+)
If QN=1.5: 1 pulse corresponds to
a volume V = 0.002 l (K factor =
500 pulse/litre)
If QN=2.5 or 3.5: 1 pulse corresponds
to a volume V = 0.005 l (K factor =
200 pulse/litre)
14
english
Type 8081
TechnicalDATA
Current output
4-20 mA (sourcing mode as default set-
ting; on request: sinking mode for the cur-
rent output and NPN for the pulse output)
corresponding to the flow rate range of
the selected model (default setting) or to a
temperature range (on request)
max. loop resistance :
1100 W at 36 V DC
610 W at 24 V DC
100 W at 12 V DC
Recommended cable
type
max. cross section of 1.5 mm
6.3.4.
electrical connections
Flow rate meter
type of cable plug
version
Any version
female 5-pin M12 cable plug (available as an
accessory; Order code 438680)
2