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• 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.
• 0x01 - pH calibration available
• pH calibration data (if available), which contains:
• the number of calibrated buffers (1 char)
• 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 (always 0)
• status (1 char): N (new) - calibrated in last
calibration; O (old) - from an old calibration.
• warnings during calibration (2 chars):
• 00 - no warnings
• 01 - clean electrode
• 04 - clean electrode and check buffer
• 05 - contaminated buffer.
• 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.
• electrode response with sign (3 chars). The “-01”
code means not calculated.
PAR Requests the setup parameters setting.
The answer string contains:
• Instrument ID (4 chars)
• Calibration alarm time out (2 chars)
• SETUP information (2 chars): 8 bit hexadecimal
encoding.
• 0x01 - beep ON (else OFF)
• 0x04 - degrees Celsius (else degrees Fahrenheit)
• 0x08 - Offset calibration (else Point calibration)
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