42
48-640 E3 Modulevel
®
Displacer Level Transmitter - FOUNDATION fieldbus
™
The next set of conditions is the device warnings. The con-
dition will not jeopardize the level measurement. However,
knowledge of the condition may be useful in troubleshooting
the device.
The following table describes the conditions that can be
seen in Device Status:
O
K
N
one
N
ormal operating mode.
User Access Password at the local display. Parameter values are being changed through the local interface.
Make sure
Transducer Block is taken out of serv
ice.
Factory Access Password at the local display. Parameter values are being changed through the local interface.
Make sure
Transducer Block is taken out of serv
ice.
Default Params Internal non-volatile parameters have
been defaulted.
Consult factory.
Primary Fault LVDT Primary circuit open condition. Check LVDT winding resistance. Replace LVDT if values
are out of range.
Core Drop • Core too far out.
• Bad LVDT wiring connection.
• Check for lost or damaged LVDT core.
• Check LVDT winding resistance.
Sec Fault Hi • A/D readings from LVDT secondary
windings are above expected range.
• Bad LVDT wiring connection.
• Check for missing displacer.
• Check LVDT winding resistance.
Sec Fault Lo* • A/D readings from LVDT secondary
windings are below expected range.
• Bad LVDT wiring connection.
• Check for broken spring or leaking displacer. This fault disabled
when measurement type is interface or density.
• Check LVDT winding resistance.
Default Cal Factory set default calibration
parameters are in use. Level
reading may be inaccurate.
Consult factory.
Hi Temperature
Present temperature in electronics com-
partment is above 80 C.
1) Transmitter may need to be moved to ensure ambient
temperature is within specification.
2) Change to remote mount transmitter.
Lo Temperature
Present temperature in electronics
compartment is below - 40 C.
1) Transmitter may need to be moved to ensure ambient
temperature is within specification.
2) Change to remote transmitter.
Cal Span Span between Sensor Calibration
Hi and Lo values is less than
minimum span.
Recalibrate or reconfigure unit with longer span
Initializing None Program is initializing. This is a transient condition.
* Can occur when unit is designed for interface and no liquid is on the displacer.
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