L ST4 0 0 |
U LT R A S O N I C L E V EL T R A N SM I T T ER
| O I/L S T4 0 0 - EN R E V. E
14
Totaliser reset
Reset the totaliser counter when in Flow mode.
DEFAULT No
Flow curve
The flow element can be selected. Select from the list below:
V-notch (5/2)
Venturi (3/2)
Parshall flume 1-96 inch
Rectangular weir (3/2)
Own curve (21 point lineariser)
DEFAULT V-Notch
Setup relays
This prompt will allow a user to enter the menu to set up the
relay parameters.
DEFAULT No
Relay1
The relays can be used either for a high alarm, a low alarm or
counter in flow mode. The difference is that a high alarm has its
reset below the set point, and a low alarm has its reset above
the set point. The counter will output a pulse every time a
certain value is reached from the totalizer, which increments by
more than a user defined value when in flow mode. The relays
can also be set up to have pump cycling enabled.
DEFAULT Off
Channel
The channel to which the relay corresponds.
DEFAULT On
Set point
This is the distance value whereby the relay will set.
DEFAULT 1.65 ft
Reset point
This is the distance value whereby the relay will reset.
DEFAULT 1.65 ft
Pump cycle
Select the type of pump control that is required. The LST400
has two pump cycling routines which can be used to efficiently
distribute the run cycles between various pumps that serve a
common purpose. The ROTATE pump routine will use the relay
set points configured for the pumps that require cycling, and
rotate these set points among the pumps with the
COMPLETION of each cycle.
NOTE:
The COMPLETION of a cycle
is reached once all pumps have switched OFF. The FIFO (First In
First Out) routine will use the relay set points configured for the
pumps that require cycling, and rotate these set points among
the pumps for subsequent cycles.
NOTE:
The FIFO routine
ensures that the lead pump will always switch off first.
HINT:
It
is advisable to configure the reset points for the pumps that
require cycling to the same level.
DEFAULT No
Count value
Choose a value where the relay will pulse between 1-1000000
when in Flow mode.
DEFAULT 1000
Clear relays
Clears the number of cycles as well as the run hours recorded
for the particular relay specified.
DEFAULT No
Relay2
As above.
DEFAULT Off
Relay3
As above.
DEFAULT Off
Relay4
As Above.
DEFAULT Off
Relays
As Above.
DEFAULT Off
Setup lineariser
This prompt will allow you to input a curve to linearize the
flume. The span is divided by 21 and you can input the new
height for each point as well as the corresponding percentage
fill at that point. LST400 prompts you at each point.
DEFAULT No
Activate
This function activates the lineariser.
DEFAULT Yes
Setpoint
This is the number at which point the user is inputting a
linearized point.
Height/percentage
Height is the distance of the flume from the bottom to a point
where a suitable percentage volume can be determined.
DEFAULT 0.00 ft
Enter the percentage volume of flume at a corresponding
distance away from the bottom of the vessel or flume.
DEFAULT 0.00 %
