Arad Octave User Manual

Octave Configuration Guide 22
4-20 mA & Pulse
In the 4-20 mA & Pulse output type, in addition to using output flow-rate data
indicated by electric current as a measuring element in a feedback cycle (for
example as input for a pump controller), there is also an option of measuring the
volume of water passing through per the set direction of the pulse.
4-20 mA
Select to output flow rate data as indicated by electric current. Set the minimum
and maximum flow rate limits that correspond to the standard range
4 mA minimum to 20 mA maximum respectively.
Minimum – set the minimal flow rate for the 4 mA set point.
Maximum – set the maximal flow rate for the 20 mA set point.
Pulse
IMPORTANT: Only in this output type (4-20 mA & Pulse), the pulse is a
‘spread pulse’, i.e., the number of pulses are spread evenly throughout the
entire set width. See following illustrations.
Units – set the measuring units for the meter’s pulses:
• m
3
– cubic meters
• GAL – gallons
• Ft
3
– cubic feet
• A.F. – acre feet
• IGAL – imperial gallon
• A.I. – acre inch

Arad Octave Specifications

General

Protection Class	IP68
Type	Ultrasonic flow meter
Communication	M-Bus
Pressure Rating	16 bar
Power Source	Internal battery