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L-770HP--E
8.2 Outline of Various Functions and Settings
HART communication or Modbus communication allows measurement value monitoring or parameter
setting change. Below are explanations on various functions and parameter setting items when
connected with the separately sold Smart communication unit "EL0".
14
5.2
Outline of various functions and settings
Monitoring of measurement value and change of parameter setting are enabled through HART communication.
Here explains various functions and items when the separately available smart communication unit “EL2310” is
connected.
For details, refer to the instruction manual No.E-023.
[List of various functions and settings]
Item
Description
Monitoring of measurement value, display of error
status
Instantaneous flow rate, totalized flow rate, and various
measurement values are monitored.
Setting of
measurement
parameter
Flow rate parameter
Setting parameters related to flow measurement.
Density parameter
Setting parameters related to temperature.
Temperature parameter
Setting parameters related to temperature.
Self-diagnosis
function
(
Self-Diag
)
Sensor check
Diagnosis of sensor.
Transmitter check
Diagnosis of transmitter.
Check of stability of flow rate
measurement (zero flow rate) Check stability while flow rate is stopped.
Check of stability of flow rate
measurement (usual status) Check stability of flow measurement.
Simulated I/O
function
(
Loop Test
)
Analog output
Simulated output of analog output.
Pulse output
Simulated output of pulse output.
Status output
Simulated output of status output.
Status input
Check input status condition.
Zeroing function (Auto Zero)
Perform zeroing.
Analog adjustment function
Adjust analog output.
Reset function
Reset internal totalized counter.
Pulse output
function
Allocation setting
Allocation setting of pulse output.
(mass flow rate / volumetric flow rate)
Pulse rate setting
Set pulse rate.
Output setting for generated
error
Set pulse output status for generated error.
(selected from 0Hz, Hold, 11kHz)
Analog output
function
Status I/O operation selection
Allocation setting
Allocation setting of analog output.
(mass flow rate / volumetric flow rate / density / temperature )
Scale setting
Scale setting of analog output.
Output setting for generated
error
Set analog output status for generated error.
Operation selection of Status I/O terminal.
(Status output or Status input)
(3.2mA, 4mA, Hold, 21.6mA)
Status output
function
Allocation setting
Allocation setting of status output.
(Error status*, bidirectional flow output, upper / lower limit alarm,
drive output alarm)
* Multiple options can be selected from [sensor failure, transmitter
warning, adjustment failure, output failure, parameter warning,
gas multiphase flow warning, under adjustment, under simulated
output]
Status input
function
Allocation setting
The allocation setting of status input is implemented.
(pulse / analog output fixed to 0%, zeroing, counter reset)
Upper / lower limit alarm function
Set range of generated alarm when HL alarm is allocated to status
output
Gas multiphase flow alarm function
Set threshold value of operation when gas multiphase flow alarm is
allocated to status output is set.