Yokogawa ADMAG AXR - Manual (Page 84)

<6. PARAMETER DESCRIPTION>
6-36
IM 01E30D01-01EN
IMPORTANT
• Parameters cannot be set during execution
(approximately 5 minutes).
• Adhesion diagnosis should only be carried
out when the fluid velocity is completely zero
by closing the valve.
• Flow measurement is not performed during
execution. While adhesion diagnosis is being
carried out, normally a current of 4 mA is
output. When adhesion diagnosis is carried
out, change the control loop to the manual
mode first.
• Adhesion diagnosis cannot be carried out
while an alarm is occurring.
F0614.ai
Alarm
Level: 4
Warning
Level: 3 Level: 2 Level: 1
[K11:Adhesion Status] Display of the adhesion
diagnosis level
This parameter is used to display the level of
adhesion diagnosis.
[K12: Adh Measure Value] Displays the resistance
value for adhesion diagnose
This parameter displays the value measured using
the adhesion diagnostic function (in M ohm).
[K13: Adhesion Level1] Setting the resistance
value for adhesion diagnostic level1
This parameter sets the resistance value (in M
ohm) for judgment of Level 1.
[K14: Adhesion Level2] Setting the resistance
value for adhesion diagnostic level2
This parameter sets the resistance value (in M
ohm) for judgment of Level 2.
[K15: Adhesion Level3] Setting the resistance
value for adhesion diagnostic level3
This parameter sets the resistance value (in M
ohm) for judgment of Level 3.
*: The warning 80: Adhesion Wng is displayed when the
adhension level reaches Level 3.
*: If “Warning Output” has been selected for F10: DO Function
status output will be performed when the adhesion level
reaches Level 3.
[K16: Adhesion Level4] Setting the resistance
value for adhesion diagnosis level4
This parameter sets the resistance value (in M
ohm) for judgment of Level 4.
*: The process alarm as 33:Adhesion Alm is displayed if “Yes” is
selected at G29:Alm-Adhesion, and the value is beyond the
judgment at Level:4.
*: Alarm output will be performed if “Alarm Output” has been
selected for F10: DO Function, and “Yes” for G29:Alm-
Adhesion.
*: The warning as 80:Adhesion Wng is displayed if “No” is
selected at G29:Alm-Adhesion, and the value is beyond the
judgment at Level:4.
[K17: Adhesion Check Cycle] Setting of execution
time for adhesion diagnosis
This parameter is used to set the execution time for
adhesion diagnosis.
The parameter would be selected as “5 min”
(default) without change for typical adhesion
diagnosis purpose use.
Setting Function
0.5 min The resistance value of adhesion diagnosis is
measured over a period of 30 seconds
1 min The resistance value of adhesion diagnosis is
measured over a period of 1 minute
5 min The resistance value of adhesion diagnosis is
measured over a period of 5 minutes
10 min The resistance value of adhesion diagnosis is
measured over a period of 10 minutes
[K19: Empty Check] Setting of empty check
diagnosis
This parameter is used to set whether or not to
perform diagnosis of empty check and the setting.
Setting Function
No Empty check: OFF
Empty check is not carried out.
Low Level of empty check diagnosis: Low
An alarm is difficult to occur in the empty status, and
the output may fluctuate.
The return from the empty status is carried out in
a short time. (The return time is approximately 3
seconds in our test data when using water having a
conductivity of 10 μS/cm *1 .)
Middle Level of empty check diagnosis: Middle
High Level of empty check diagnosis: High
An alarm occurs easily in the empty status, but the
return time from the empty status is carried out after
a long time. (The return time is approximately 20
seconds in our test data when using water having a
conductivity of 10 μS/cm *1 .)
*1: The data is based on our test method, which is not
guaranteed.