NUS-4
Seite 20
NUS-4 K05/0216
P04
Maximum Distance to be Measured (H)
The maximum distance to be measured is the greatest distance between the surface of the
transducer and the level to be measured.
This is the only parameter that has to be programmed for each application other than
distance (however to avoid disturbing effect of possible multiple echos it is suggested
to do this in distance measurement applications too).
Values of the maximum measuring distance will be displayed as below.
Engineering Unit
Display Format
m
x,xxx or xx,xx
cm xxx,x
ft
xx,xx or xxx,x
inch xxx,x
The factory programmed, greatest distances (DEFAULT values) which
can be measured
by
the units are listed in the table below. For the actual application the maximum distance
to be
measured
i.e. the distance between the sensor and the bottom of the tank should be entered
in P04.
To obtain the best accuracy, measure this distance in the empty tank with the NUS-4 by using
the “GET LEVEL” function (by double key pressing of UP + DOWN ) provided the bottom
is flat. Enter the actual measured value displayed as P04.
Model
Factory default of maximum measuring distance (m/ft)
NUS-4x04 4/13
NUS-4x06 6/20
NUS-4x08 8/26
NUS-4x10 10/33
NUS-4x15 15/49
NUS-4x25 25/82
FACTORY DEFAULT: acc. to the table
P05:
Minimum measuring distance (Dead zone- Close-end blocking)
The NUS-4 will not accept any echo within the blocking distance set here.
Automatic Close-end-blocking (Automatic Dead Band control)
By using the factory default value, the unit will automatically set the smallest possible close-
end-blocking distance i.e. the dead band.
Manual close-end-blocking
Manual close-end-blocking should be used for example to block out the echo originating from
the bottom rim of a stand-off pipe or from any object protruding into the ultrasonic cone near to
the transmitter.
By entering a value, higher than the factory default, the minimum measuring range will be
extended and fixed to the specified value.
To return to the factory programmed (DEFAULT value) of the minimum measuring distance press
NEXT + DOWN .
Model
Factory default of minimum measuring distance X
m
(m/ft)
NUS-4x04
0,2 / 0,65
NUS-4x06
0,25 / 0,82
NUS-4x08
0,35 / 1,2
NUS-4x10
0,35 / 1,2
NUS-4x15
0,45 / 1,5
NUS-4x25 0,60/2,02
FACTORY DEFAULT: automatic dead band control
