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Code Message Explanation
803 OP CODE ERR The processor has attempted to execute an
illegal instruction.
804 STACK ERR The processor stack has overflowed.
901 TX SPEC Illegal transducer specification number received
from PC.
902 TX TYPE Illegal transducer type received from PC.
904 TX UNITS Illegal transducer units data received from PC.
905 SERIAL Illegal serial transducer data received from PC.
906 UNITS Illegal units of measure data received from PC.
907 DIRECT Illegal direction data received from PC.
908 NAME Name sent from PC is too long.
909 RANGE Numeric Parameter sent from PC is out of range.
920 RS232 Error receiving RS232 data from PC.
921 TIMEOUT Timed out receiving message from PC.
922 CRC Message received from PC has incorrect CRC
value.
923 ILL MSG Illegal message received from PC.
NOTE: If ETA can be switched on, but fails to respond to the keyboard, the electronic
circuitry may be reset by linking pins 5 and 6 in the PC connector, with a length of wire. This
will turn the unit off. Turn the unit on again by pressing ‘ON’. If after this reset ETA still fails
to operate correctly, use ‘6’ for Miscellaneous and ‘6’ Software Reset to clear memory.
Having carried out a hardware reset as described above the message ‘800 MEMORY’
may be displayed on the next power up, and a software reset should be carried out.
7529_eng.fm Page 60 Wednesday, November 12, 2003 8:57 AM