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• Meter status (2 chars of status byte): represents a 8 bit hexadecimal encoding.
• 0x10 ‑ temperature probe is connected
• 0x20 ‑ autolog in progress
• 0x01 ‑ new GLP data available
• 0x02 ‑ new SETUP parameter
• 0x04 ‑ out of calibration range
• 0x08 ‑ the meter is in autoend point mode
• 0x30 ‑ the instrument is in fixed range
• Reading status (2 chars): R ‑ in range, O ‑ over range, U ‑ under range. First
character corresponds to the primary reading. Second character corresponds
secondary reading.
• Primary reading (corresponding to the selected range) ‑ 10 ASCII chars, including
sign, decimal point and unit.
• Secondary reading (only when primary reading is not EC) ‑ 10 ASCII chars, including
sign, decimal point and unit (if primary reading is not conductivity).
• Temperature reading ‑ 8 ASCII chars, with sign, decimal point, always in °C.
MDR Requests the instrument model name and firmware code (16 ASCII chars).
GLPxx Requests the calibration data record for “xx” profile number.
The answer string contains:
• GLP status (1 char): represents a 4 bit hexadecimal encoding.
• 0x01 ‑ EC calibration available
• 0x02 ‑ NaCl calibration available
• EC calibration data (if available), which contains:
• calibration time (12 chars)
• the number of calibration point (1 char)
For each calibration point:
• the standard value (10 chars)
• offset factor or cell constant (with sign and decimal point)
• time when was calibrated (12 chars)
• salinity calibration
• calibration time (12 chars)
• salinity coefficient (10 chars)
• xx=15 Salinity, Seawater range
• xx=16 Salinity, PSU range
PC INTERFACE
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