YOKOGAWA EJX Series User Manual page 41

Differential pressure and pressure transmitters
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Integral
indicator
AL. 79
Displayed value exceeds limit.
OV. DISP
AL.87
Flange temperature exceeds a preset
FLG. HI
upper limit.
AL.87
Flange temperature is below a preset
FLG. LO
lower limit.
AL.88
Differential pressure/pressure
INVR.DP
fluctuation does not reach the reference
level required to blockage detection so
that no blockage detection is carried
out.
AL.88
Low-pressure-side fluctuation does not
INVR.SL
reach the reference fluctuation level
required to blockage detection.
AL.88
High-pressure-side fluctuation does not
INVR.SH
reach the reference fluctuation level
required to blockage detection.
AL.88
BlkF can not be used for blockage
INVR.F
detection for some reasons.
AL.89
Appointed the diagnosis range outside.
ILBD.OV
AL.89
B Blocking (both-side blockage) is
B BLK
detected.
AL.89
High-pressure-side blockage is
H BLK
detected.
AL.89
Low-pressure-side blockage is
L BLK
detected.
AL.89
Pressure fluctuation amplitude of high-
H LRG
pressure side is large.
AL.89
Pressure fluctuation amplitude of low-
L LRG
pressure side is large.
AL.89
A Blocking (single-side blockage) is
A BLK
detected.
AL. 90 SIM
Under Simulation Mode for flow.
AL. 91 F. SIM
Under Simulation Mode for device
variables.
AL. 91 P. SIM
AL.91 SP. SIM
AL. 91
ET. SIM
AL. 91
TF. SIM
AL. 91
PCT. SIM
AL. 91
AO. SIM
Cause
operation during error
Continues to operate and output.
It depends on the Diag Out Option
setting.
Off: Continue to operate and output.
Burnout:Outputs AO upper limit or AO
lower limit.
Fall back:Outputs Diag Out Fixed Val.
Continue to operate and output.
It depends on the Diag Out Option
setting.
Off: Continue to operate and output.
Burnout: Outputs AO upper limit or AO
lower limit.
Fall back: Outputs Diag Out Fixed Val.
Simulate input output.
Output the setting value of Simulate-
Value
<7. Errors and Countermeasures>
4-20mA Output
Check settings and change them as
needed.
Check the heater failure.
Check the capsule temp. and
Amplifier temp.
Adjust Flg Temp Coef.
Check process condition.
Check process condition.
Check Simulation Mode.
Check Simulation Mode
39
Countermeasure
IM 01C25A01-01E
7

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