3 4
• 0x10 - temperature probe is connected
• 0x01 - new GLP data available
• 0x02 - new SETUP parameter
• Reading status (2 chars): R - in range, O - over range, U -
under range. First character corresponds to the appropriate
range reading. Second character corresponds to mV reading.
• Primary reading (corresponding to the selected range) -
7 ASCII chars, including sign and decimal point.
• Secondary reading (only when primary reading is not
mV) - 7 ASCII chars, including sign and decimal point.
• Temperature reading - 7 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.
• 0x01 - pH calibration available
• 0x02 - Rel mV calibration available
• 0x04 - ISE calibration available
• pH calibration data (if available), which contains:
• the number of calibrated buffers (1 char)
• the ion charge, with sign (2 chars)
• the offset, with sign and decimal point (7 chars)
• the average of slopes, with sign and decimal point (7 chars)
• the calibration time,
yymmddhhmmss
(12 chars)
• buffers information (for each buffer)
• type (1 char): 0 - standard, 1 - custom
• status (1 char): N (new) - calibrated in last calibration;
O (old) - from an old calibration.
• warnings during calibration (2 chars): 00 - no
warning, 04 - Clean Electrode warning.
• buffer value, with sign and decimal point (7 chars).
• calibration time,
yymmddhhmmss
(12 chars).
• electrode condition, with sign (3 chars). The “-01”
code means not calculated.
• Rel mV calibration data (if available), which contains:
• the calibration offset, with sign (7 chars)
