СБОЙ FRAM - loss of previously entered information - cluster
number, well number, survey type and system
parameters. When the MODE button is pressed
(when this fault is indicated), the system
parameter area is filled with initial values.
СБОЙFRAM14 - loss of user-defined tables of sound speed vs.
pressure.
СБОЙFRAM16 (СБОЙFLES16) - partial loss of character reports.
СБОЙFLES17 (СБОЙFLES18) - partial loss of acoustic signal
plots.
Malfunctions such as СБОЙFRAM14, СБОЙFRAM16,
СБОЙFLES16, СБОЙFLES17, СБОЙFLES18 can occur because of faulty
handling of the level gauge, e.g. - connection of the AC adapter or
computer while the level gauge is powered up. These faults will be
indicated each time the gauge is switched on until the memory is
initialized, however, in order to preserve the information in the instrument
memory, the data must be imported into the computer before initialization
is carried out. If the above faults cannot be eliminated by initializing the
gauge, the device must be sent for repair.
During the self-test, other faults may be detected that need to be
repaired:
НЕИСПРFRAM - the ferromagnetic memory malfunction;
НЕИСПРFLES - flash storage malfunction;
НЕИСПР FL4 - the inability to write the character report to the non-
volatile memory
НЕИСПР FL5 - inability to record the echogram in non-volatile
memory.
While the echograms are being recorded, the level gauge checks the
correctness of the recording by reading the recorded echogram from the
memory and checking its checksum. If the checksum does not match, four
more attempts are made to write the echogram to the next readout-
controlled memory area. If the echogram cannot be correctly written to the
non-volatile memory even after four attempts, НЕИСПР FL4, НЕИСПР
FL5 are displayed. НЕИСПР FL4 is displayed when the transmitter cannot
record a symbol report. НЕИСПР FL5 is displayed when the transmitter
cannot record an echogram. FL4 and FL5 can be exited by pressing the
MODE button. In AUTO mode KVU, KPU, KVD the check for НЕИСПР
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