L-770HP--E
Parameter
Descriptions
Setting range
Standard value
Sensor failure
Sensor failure
ON / OFF
OFF
Transmitter failure
Transmitter failure
ON / OFF
OFF
Calibration failure
Calibration failure
ON / OFF
OFF
Saturated alarm
Output saturation alarm
ON / OFF
OFF
Slug flow alarm
Gas multi-phase flow alarm
ON / OFF
ON
Calibration in progress Calibration in progress
ON / OFF
OFF
Fixed output
Simulated output in progress
ON / OFF
OFF
Output Logic setting values
Negative (OFF Active)
Positive (ON Active)
Status, alarm status
OFF
ON
OFF
ON
Status of STATUS I/O terminal
Close (ON)
Open
Open
Close (ON)
When using Analog status output
0mA
mA
mA
0mA
(
)
Set Output logic.
Setting example
(
)
Set the details of selected assigning.
●
When Error Status is selected:
In case an error selected by [Status output error select] has occurred, Status is switched ON.
Multiple items can be set.
[Items to be selected by Status output error select]
●
When Bi Direction is selected:
Forward / Reverse flow direction is output. Refer to
“
. Forward / Reverse flowrate output function
”
.
●
When H/L Alarm is selected:
Higher / Lower limit alarm of flowrate, temperature, density or pulse counter is output. Refer to
“
.
Higher / Lower limit alarm function
”
.
●
When Drive Out Alarm is selected:
In case the drive output reaches the threshold value set by the Drive out point or above, alarm will be
output (for maintenance purpose).
8.9 Higher / Lower Limit Alarm Function
This equipment can set the higher / lower limit alarm to monitor flowrate, temperature, density and
counter. In case alarm is switched ON according to the setting, output will be as status output signal.
Setting method and functional behavior of the Higher / Lower limit alarm function are described below.