Yokogawa EJX438B User Manual
Page 70
<8. Maintenance>
8-9
IM 01C27H01-01EN
Connect the device configuration tool and check self-diagnostics.
Contact Yokogawa service personnel.
F0808.ai
Refer to Alarm Message Summary
in Subsection 8.5.3
Bind capillaries together as far as
possible or provide lagging.
Provide lagging and/or heat insulation,
or allow adequate ventilation.
Refer to 8.2 “Calibration Instruments
Selection”.
Adjust the output.
Does
the ambient
temperature significantly
differ between the high and low
pressure side
capillaries?
Is output adjusted correctly?
Large output error.
Does the self-
diagnostic indicate the problem
location?
Is transmitter
installed where there is
marked variation in
temperature?
Are excess
capillaries secured?
YES
NO
YES
NO
NO
YES
NO
YES
NO
YES
Secure them so that they are not
moved by wind or vibration.
Were appropriate
instruments used for
calibration?
YES
NO