54
•
0x04
: out of calibration range
•
0x08
: the meter is in autoend mode
• Reading status: R ‑ in range, O ‑ over range, U ‑ under range
•
The following status flags are sent for all modes except mode 25
•
DO reading range flag
•
temperature reading range flag
•
pressure reading range flag
•
OUR/SOUR reading range flag (sent only if in OUR/SOUR measure mode)
•
The following status flag is sent only for mode 25
•
BOD reading range flag
• Readings
•
The following values are sent for all modes except mode 25
•
DO reading, including sign and decimal point (8 chars)
•
temperature, including sign and decimal point (8 chars)
•
pressure value, including sign and decimal point, always in mmHg (11 chars)
•
OUR/SOUR reading, including sign and decimal point (sent only if in OUR/SOUR
measure mode) (8 chars)
•
OUR/SOUR counter (sent only if in OUR/SOUR measure mode) (4 chars)
•
The following values are sent only for mode 25
•
BOD reading, including sign and decimal point (8 chars)
•
initial DO value, including sign and decimal point [mg/L] (6 chars)
•
final DO value, including sign and decimal point [mg/L] (6 chars)
MDR
Requests the instrument model name and firmware code (16 ASCII chars).
GLP
Requests the calibration data record.
The answer string contains:
•
the number of calibrated buffers (1 char)
•
calibrated buffer unit (0 = %, 1 = mg/L) (1 char)
•
buffer value including sign and decimal point (6 chars)
•
calibrated buffer unit (0 = %, 1 = mg/L) (this value is sent only if there is a two point
calibration) (1 char)
•
buffer value including sign and decimal point (this value is sent only if there is a two point
calibration) (6 chars)
•
salinity value (3 chars)
•
pressure value in mmHg, including sign and decimal point (11 chars)
•
temperature value including sign and decimal point (8 chars)
•
calibration time: yymmddhhmmss (12 chars).
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