31
48-635 E3 Modulevel
®
Displacer Level Transmitter
3.3.4 Status Message Descriptions
Display
Message
Type
Description
Solution
OK
Information
Absence of any warning or fault
No action required.
System
Warning
Information
Unexpected system events
No action required unless warning
persists
Surge
Information
A/D readings from the LVDT secondary windings
are changing more rapidly than expected.
Rate of level change is greater than
expected. Check for possible process
surge or bent stem.
Initial
Warning
Initializing, PV held at 4 mA set point while unit
powers up. Should be transient.
No action required.
Cal Span
Warning
Span between Sensor Calibration Hi and Lo val-
ues is less than minimum span.
Recalibrate or reconfigure unit with
longer span
Lo Temp
Warning
Present temperature measured 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 mount transmitter
3. Controlled external heat may be
required to ensure that temperature
inside housing is within specification
Hi Temp
Warning
Present temperature measured in
electronics compartment is above +80° C.
1. Transmitter may need to be moved
to ensure ambient temperature is
within specification
2. Change to remote mount transmitter
3. Controlled external cooling may be
required to ensure that temperature
inside housing is within specification
TrimReqd
Warning
Loop trim values are defaults; loop output may
be inaccurate.
Perform Loop Trim operation.
Cal Reqd
Warning
Default calibration parameters in use,
level reading inaccurate.
Consult factory.
SecFltHi
Fault
• A/D readings from LVDT secondary windings
are above expected range.
• Bad LVDT wiring connection.
• Check for missing displacer.
• Check LVDT winding resistance.
SecFltLo*
Fault
• A/D readings from LVDT secondary windings
are below expected range.
• Bad LVDT wiring connection.
• Check for broken spring or leaking
displacer.
• Check LVDT winding resistance.
CoreDrop
Fault
• Core too far out.
• Bad LVDT wiring connection.
• Check for lost or damaged LVDT core.
• Check LVDT winding resistance.
PriFault
Fault
LVDT Primary circuit open condition.
Check LVDT winding resistance.
Replace LVDT if values are out of range
LoopFail
Fault
Loop current differs from commanded value by
more than 1.00 mA.
Insufficient power. Supply must be
11–36 VDC.
DfltParm
Fault
Non-volatile parameters have been defaulted.
Consult factory.
*
Can occur when unit is designed for interface and no liquid is on the displacer.
PACTware PC program
E3 Modulevel
®
offers the ability to monitor output and LVDT position using the PACTware DTM.
Refer to bulletins 59-101 and 59-601 for more information.
