User Manual

• Resistivity, EC and temperature reading on the

Resistivity range

• TDS, EC and temperature reading on the Resistivity

range

• Salinity, EC and temperature reading on the

Resistivity range

The answer string contains:

• Meter mode (2 chars):

• 10 pH range/0.001 resolution on channel 1

• 11 pH range/0.01 resolution on channel 1

• 12 pH range/0.1 resolution on channel 1

• 13 mV range on channel 1

• 14 Relative mV range on channel 1

• 15 ISE range on channel 1

• 20 EC range on channel 2

• 21 Resistivity range on channel 2

• 22 TDS range on channel 2

• 23 Salinity range on channel 2

• 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 the second reading (if second reading exists).

• The unit of the reading (2 chars) (for ISE, EC, Resis-

tivity, TDS, Salinity ranges only)

• for ISE range it represent the index of the unit

selected from setup (0-ppt, 11-User)

• for EC range: 0 - microsiemens, 1 - milisiemens

• for TDS range: 0 - ppm, 1 - g/L

• for Salinity range the unit represents always %

• Primary reading (corresponding to the selected range)

- 12 ASCII chars, including sign and decimal point

and exponent.