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
13
Flow mode
Security code
Security code to advance to programming.
DEFAULT 5159
Mode
Choose Flow.
DEFAULT Distance
Units
Choose between Feet and Meters.
DEFAULT Feet
Empty distance
This is the distance from the face of the transducer to the
bottom of the flume.
DEFAULT 6 ft
Span
This figure is measuring the range of the instrument i.e.
distance from the bottom of the flume to the highest point
being measured. Remember, the material must not approach
within 1.65 feet of the transducer face or within the blanking
distance of the transducer.
DEFAULT 4.92 ft
Blanking
This is the area where an echo cannot be processed because
the return echo would be received while the transducer is still
firing.
DEFAULT 1.65 ft
Rate of change
This is used to set up the rate of change of the level output. The
rate of change governs the rate at which the instrument output
change. By increasing the rate of change (13 ft/min) it will allow
the LST400 to monitor rapid changes in flow. If the level moves
faster than 1.65 ft/min then increase the rate of change. If a
more stable output is required decrease the rate of change (1.0
ft/min).
DEFAULT 1.65 ft/min
Application
This selection can be used to select either liquid or solid
applications. The solid application will provide more power to
locate the correct echo.
DEFAULT Liquids
Factory reset
This prompt will reset all values entered back to factory setting
except the password. Please write down all settings before
using this function.
DEFAULT No
Temperature compensation
Set temperature compensation on or off.
DEFAULT Off
Simulate
Simulates the head, Relay output and mA output at the rate of
change selected.
DEFAULT No
Set password
This prompt will allow you to change the default factory code.
Should the factory code be forgotten please contact a local ABB
agent for an override password.
DEFAULT No
Backlight
Choose between switching on the backlight for 1 - 60 minutes,
switch off the backlight or to switch the backlight permanently
on.
DEFAULT 2 Min
Losstime
This is the time, in seconds, between last receiving a correct
echo and going into the Fail-safe condition. Minimum 30
seconds.
DEFAULT 300 Sec
Failsafe
If the loss of echo condition is reached then the 4-20mA output
will follow the configured settings 3.6mA, 4mA, 20mA, 21mA or
Hold the reading at the last recognized echo. This is usually due
to a cable being cut.
DEFAULT Hold
Flow units
Units can be set via the alphanumeric display to the desired
value.
DEFAULT LT/SEC
Maximum value
This is the maximum flow rate of the flume.
DEFAULT 1000
Zero offset
Choose between -0.16 ft to 0.16 ft for small errors on the
instrument.
DEFAULT 0
Totalizer count
Choose a value where the counter will increment for a certain
unit of flow between 1-1000000 when in Flow mode.
DEFAULT 1
Totaliser units
Indication of units the totaliser is set up for.
DEFAULT Lt
