Diagnosing Flow Noise (Only Available For Axg, Not For Axw) - YOKOGAWA Admag TI Series User Manual

IMPORTANT
• Before using the electrode insulation deterioration diagnosis function, be sure to disconnect
this product from the control loop.
• While the electrode insulation deterioration diagnosis function is used, the pulse output is not
output correctly.
NOTE
Before using the electrode insulation deterioration diagnosis function, always make sure that
the sensor is in the full pipe state. If the sensor is in the empty pipe state, the function to detect
adhesion may not run normally.
5.9.8 Diagnosing Flow Noise (only available for AXG, not for
AXW)
The flow noise diagnostic function measures a generated flow noise with the sensor, and
displays a warning if the flow noise exceeds the specified value.
The flow noise diagnosis is shown on the display in four levels: level 1 to level 4. A value to
judge each level can be specified individually. If an output exceeds the level 3 or level 4 value, a
warning message is displayed.
For details about the alarm and warning, refer to Subsection 5.6.1. Also, for the flow noise value,
refer to Subsection 5.1.3.
For details about the flow noise span and damping time constant, refer to Subsections 5.1.5 and
5.1.6.
Level 1 Level 2
The setting can be configured with the following parameters.
Menu path
Display
F
OUNDATION
Fieldbus
Block Relative
Name Index
DTB 31
DTB 32
DTB 33
DTB 34
DTB 35
DTB 36
*1: From the table below, select the use of the flow noise function.
Warning
Warning
Level 3 Level 4
F0436.ai
Device setup ► Diag/Service ► Diagnosis ► Flow noise ► (see below)
Diagnostic ► DTB ► Device Diagnostics ► Diagnostics/Alerts ► Diagnostics ► Flow
Noise ► (see below)
Parameter
Display
Function Flow Noise Check
Threshold level 1 Flow Noise Level1
Threshold level 2 Flow Noise Level2
Threshold level 3 Flow Noise Level3
Threshold level 4 Flow Noise Level4
Result ► Status Flow Noise Status
<5. Functions>
F Fieldbus
OUNDATION
137
Description
Specifies the use of the flow
*1
noise diagnosis function.
Specifies the value to judge
level 1.
Specifies the value to judge
level 2.
Specifies the value to judge
level 3.
Specifies the value to judge
level 4.
Displays the flow noise level.
IM 01E21A02-03EN