Electrode Adhesion Detection - YOKOGAWA Admag TI Series User Manual

Flow rate[m
High-High 300
285
Limit
High Limit 250
235
65
Low Limit 50
40
Low-Low
25
Limit
Status Output
(High/Low limit)
Status Output
(High-High/
Low-Low limit)
NOTE
When the physical quantity to be output is changed, set the high/low limits to judge an alarm
again.
5.9.3

Electrode Adhesion Detection

The electrode adhesion detecting function diagnoses an electrode adhesion with the resistance
value of the electrode, and displays a warning or alarm if an adhesion is detected.
The electrode adhesion detection is displayed on the display in four levels: level 1 to level 4.
A value to judge each level can be specified individually. Display a warning when adhesion
exceeds level 3, and an alarm when adhesion exceeds level 4.
For details about the alarm and warning, refer to Subsection 5.6.1. Also, for the resistance value
of the electrode, refer to Subsection 5.1.3.
Level 1 Level 2
The setting can be configured with the following parameters.
Menu path
Display
F
OUNDATION
Fieldbus
Block Relative
Name Index
DTB 24
DTB 25
DTB 26
DTB 27
/h]
3
Alarm
Warning
Level 3 Level 4
F0434.ai
Device setup ► Diag/Service ► Diagnosis ► Adhesion ► (see below)
Diagnostic ► DTB ► Device Diagnostics ► Diagnostics/Alerts ► Diagnostics ► Adhesion
► (see below)
Display
Function
Threshold level 1
Threshold level 2
Threshold level 3
Hysteresis
Time
F0433.ai
Parameter
F Fieldbus
OUNDATION
Adhesion Check
Adhesion Level1
Adhesion Level2
Adhesion Level3
<5. Functions>
Description
Specifies the use of the
electrode adhesion detecting
function.*1
Specifies the value to judge
level 1.
Specifies the value to judge
level 2.
Specifies the value to judge
level 3.
IM 01E21A02-03EN
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