Baker Hughes Masoneilan 12400 Series, Инструкция по эксплуатации и руководство по безопасности

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Message on LCD /
ValVue (English)
Description
Device Action
(Warning message only or
Failsafe position)
Probable Cause Recommended Action
MCU (Microprosessor
Unit) Self-Check error A fatal event (watchdog, illegal interrupt,
stack overflow, data checksum) occurred Failsafe position A valid hidden record (in RAM)
existing upon reset indicating
that a fatal event (watchdog,
illegal interrupt, stack overflow,
data checksum) occurred twice
in a 20-second period.
S OFT W ARE ERR OR Software error. The operating system
failed in conducting a task. Warning message A valid hidden record (in RAM)
existing upon reset indicating
that a CPU exception (such as
invalid instruction ) occurred OR
invalid target mode of the
device was found Clear the condition using
ValVue software or HART
host.
If the failure persists, replace
the device.
CALIB RATION ERR OR Calibration of Analog Outputs (AOs) failed Warning message Calibration of AOs was outside
the acceptable range when
attempting to calibrate.
Tank empty or wrong left/right
mounting position. Using precision measuring
equipment, perform
calibration according to
boundary limits of AOs
AUTO TUNE ERR OR The Autotune procedure has been
cancelled. Then the procedure failed to
complete Warning message N/A If required start again the
Autotune procedure
DISPLACER HEIGHT Error of displacer height information Warning message The span (in engineering units)
exceeded the displacer height
plus 8.2 mm, entered into the
instrument data base Check the engineering unit
settings and the true
displacer height
MOUNTING Mounting error Warning message Mounting configuration
(left/right) conflicted zero and
span transmitter calibration Check and do coupling if
necessary.
Recalibrate the device.
TIME W O RK ING Working time exceeded the configurable
threshold Warning message N/A Perform maintenance of
device
CURRENT SIG NAL
SENS O R
Error of 4-20 mA sensor Failsafe position:
- Fail Low or High, user adjustable
- Fail Low only for a SIL device
Readback sensor reading was
outside the -1 to 30 mA range
for five reads in a row Clear the condition using
ValVue software or HART
host.
If the failure persists, replace
the device.
LOOP OUTP UT
WARN ING
Small mismatch between commanded and
read 4-20 mA loop output (lower than 0.32
mA) Warning message Resistance change of external
loop may have changed Clear the condition using
ValVue software or HART
host.
If the failure persists, replace
the device.
4-20 LOOP OUTP UT
ERROR
Mismatch between commanded and read
4-20 mA loop output (lower than 0.64mA) Warning message Resistance change of external
loop may have changed Clear the condition using
ValVue software or HART
host.
If the failure persists, replace
the device.
LOCAL U SER
I NTERFACE OFF
User Interface (UI) was turned off Warning message When ambient temperature is
lower than -15 °C (+5 °F), LCD
display is frozen. Then UI are
turned off to prevent from any
error of setting N/A
V OLTAGE LOOP L OW Loop voltage below threshold Warning message Loop voltage or power supply
voltage may have changed Check the loop voltage and
ensure it is above 10 VDC
V OLTAGE LOOP H IGH Loop voltage above threshold Warning message Loop voltage or power supply
voltage may have changed Check the loop voltage and
ensure it is below 40 VDC (or
30 VDC in intrinsically safe
area)
V OLTAGE S HUNT
DIAG NOSTIC L OW
Diagnostic (shunt) voltage below threshold Warning message Internal voltage may have
changed Clear the condition using
ValVue software or HART
host.
If the failure persists, replace
the device.
V OLTAGE S HUNT
DIAG NOSTIC H IGH
Diagnostic (shunt) voltage above threshold Warning message Internal voltage may have
changed Clear the condition using
ValVue software or HART
host.
If the failure persists, replace
the device.