Hanna-instruments HI 3220 Instrukcja Użytkownika Pobierz pdf (Strona 51)

• 13 mV range on channel 1

• 14 Relative mV range on channel 1

• 15 ISE range on channel 1 (HI 3221)

• 20 ISE range on channel 2 (HI 3222)

• 21 mV range on channel 2 (HI 3222)

• 22 Relative mV range on channel 2 (HI 3222)

• 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 - 8 ASCII chars, with sign and two

decimal points, always in ºC.

MDR Requests the instrument model name and firmware code (16 ASCII

chars).

GLPx Requests the calibration data record.

• x=1 calibration data from channel 1

• x=2 calibration data from channel 2 (HI 3222)

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 x=1 (if available), which contains:

• the number of calibrated buffers (1 char)

• the ion charge, with sign (2 chars) (HI 3221)

• the offset, with sign and decimal point (7 chars)

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 67 68

Brak uwag

Hanna-instruments HI 3220 Instrukcja Użytkownika Strona 51