Hanna-instruments HI 98180 Manual do Utilizador descarregar pdf (Página 54)

• 05 - ISE range

• Meter status (2 chars of status byte): represents a 8 bit

hexadecimal encoding.

• 0x10 - temperature probe is connected

• 0x01 - new GLP data available

• 0x02 - new SETUP parameter

• 0x04 - out of calibration range

• 0x08 - the meter is in autoend point mode

• Reading status (2 chars): R - in range, O - over range, U -

under range. First character corresponds to the primary

reading. Second character corresponds to mV reading.

• Primary reading (corresponding to the selected range) -

11 ASCII chars, including sign and decimal point and

exponent.

• 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.

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Hanna-instruments HI 98180 Manual do Utilizador Página 54