Function Description - Toshiba L5232 Instruction Manual

10. Function Description

The LF232 flowmeter converter is equipped with 4 digital outputs and 2 digital inputs (1 digital output
as standard), enabling you to use these as various functions such as pulse output and alarm outputs.
Digital I/O functions are described below.
Functions
Flow totalization
Multiple ranges
Forward and reverse ranges
Flow rate High/Low limit
(High-high limit/Low-low limit)
alarms
Fluid empty alarm
Preset counter
Remote still water zero adjustment
Fixed value output (loop output)
Converter error alarm
Totalizes flow volume in volumetric unit.
For totalized flow, a pulse output per each unit of flow volume can be
sent out.
The operation to start, stop and reset the totalizer and pulse output can
be controlled with Digital Input.
Measuring ranges can be switched in accordance with flow rate.
Measuring ranges can be switched automatically or by control using
Digital Inputs.
Forward and reverse direction flows can be measured.
Forward and reverse ranges can be combined with multiple ranges.
If the flow rate exceeds or lowers below the preset value, an alarm will
be output.
2 high limit alarm outputs and 2 low limit alarm outputs, 4 alarm
outputs in total, can be sent out.
If the fluid to be measured flows out from the measuring pipe of the
detector, an alarm is output.
(In the case of LF232*F, fluid empty alarm function is not usable.)
If the count of the totalizer exceeds the preset value, a signal is output.
Still water zero adjustment can be controlled using Digital Inputs.
Fixed value for current output and pulse output can be sent out to
perform a loop check for output lines.
The fixed value output mode can also be switched by control using
Digital Inputs.
If an error is detected such as memory error or excitation circuit error,
an alarm is output.
- 127 -
Description
6F8A0917