Gill Instruments Ltd
Intrinsically Safe WindObserver Anemometer
Page 39
Issue 10
Doc. No. 1360-PS-0001
May 2015
8.3
Status Codes
A two character ‘Status code’ will be transmitted in the serial string. This value will
denote the system and measurement status. The codes are:
Code 00 - O.K.
This indicates that the system is operating correctly. The transducers signals are within
the required limits and no memory faults have occurred.
Code 01 - Transducer Pair 1 Failed.
This error occurs when there is a blockage in the path of transducer pair one, or when a
transducer has failed. Software judges that the data is invalid.
Code 02 - Transducer Pair 2 Failed.
This error occurs when there is a blockage in the path of transducer pair two, or when a
transducer has failed. Software judges that the data is invalid.
Code 04 - Transducer Pairs 1 and 2 Failed.
This error occurs when there is a blockage in the path of transducer pairs one and two, or
when transducers have failed. Software judges that the data is invalid.
Code 08 - Non-Volatile Memory Checksum Error.
The non-volatile memory (EEPROM) holds the user set up, internal system parameters
and calibration data. If the internal checksum programmed in production does not match
the one calculated by the system during operation, then this status code will be flagged.
An EEPROM error could be caused by a faulty read/write cycle or a complete chip
failure.
Code 09 - Volatile Memory Checksum Error.
The volatile memory (SRAM) holds the data, which is used during the vector calibration
codes. If the internal checksum programmed in production does not match the one
calculated during system operation then this status code is flagged. The unit is operating
in uncalibrated mode.
Code 10 - System Gain at Maximum.
This indicates that an ultrasonic signal has been received but the receive gain had to be
set to maximum to recover the pulse. This is normally due to partially blocked transducer
paths. The wind velocity reported could be in error.
Code 51 - Measurement Average Building.
This code is output until the average period determined in Modes 14 and 15 has been
reached. The reported velocities during this period are only the average calculated for the
length of time that the unit has been operational. This code only occurs after a power on
or exit from configuration mode.
