Instruction Manual

• Reading status (1 char): R - in range, O - over

range, U - under range.

• The reading (corresponding to the selected range) -

7 ASCII chars, including sign and decimal point.

• Temperature reading - 8 ASCII chars, with sign and

two decimal points, always in ºC.

MDR Requests the instrument model name and firmware code

(16 ASCII chars).

GLP Requests the calibration data record.

The answer string contains:

• GLP status (1 char): represents a 4 bit hexadecimal

encoding.

• 0x04 - EC calibration available

• 0x08 - NaCl calibration available

• EC calibration data (if available), which contains:

• the number of calibrated satandard (1 char)

• the offset factor, with sign and decimal point

(7 chars)

• the cell constant, with sign and decimal point

(7 chars)

• the calibration time, yymmddhhmmss (12 chars)

• standards information

• standard value, with sign and decimal point

(7 chars).

• standard unit (2 chars; 00-µS; 01-mS)

• Reference Temperature with and decimal point

(5 chars)

• Temperature Compensation mode (2 chars)

• 00 - no temperature compensation

• 01 - automatic temperature compensation

• 02 - manual temperature compensation

• TC coeficient with sign and decimal point (5 chars)

• Na Cl Calibration data

• the number of calibrated standards (1 char)

• salinity coeficient, with sign and decimal point

(7 chars)

• Cell constant, with sign and decimal point

(7 chars)