Instruction Manual

58
• 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 ºC.
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 char)
• 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 charrs)
• salinity coefficient (10 chars)
PRFxx Request profile “xx” information
The answer string contains: