triOS TpH - Page 34

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D01-068en201913 Manual TpH
Annex // TpH
pH Calibration
Register
5000 FSM Control
5001 FSM Parameter 1 = pH
High Byte Low Byte
5002 FSM on = 1 always FSM Status
Requirements and notes Functionality Function
code
Register Value Length FSM
Status
Type Result
Step 1 pH Calibration
Requirements: Activate Calibration mode pH
Temperature is calibrat-
ed (see p. 28)
Activate Calibration mode 0x06 5000 0x0100
Sensor in normal func-
tion (LED green)
Activate pH calibration 0x06 5001 0x0001
Start calibration 0x06 5000 0x0101
Wait until Sensor LED gets blue
and FSM status gets 2
0x03 5002 1 2 Integer LED gets
blue
Step 2
Requirements: Calibrate pH 7
FSM Status 2 Start calibrate pH 7 0x06 5000 0x0103
Insert buer pH7
Stable readings (poll
until stable)
Check read FSM Status register
until FSM Status gets 7 (takes a
little while)
0x03 5002 1 7 Integer
Write specied value of stand-
ard solution
0x10 1000 IEEE 754
Float
2 IEEE
754
Float
Notes:
Use 40E0 40E0 (pH7) if
you can't write oats
Check read FSM Status register
until FSM Status gets 2
0x03 5002 1 2 Integer
Step 3
Requirements: Calibrate pH 10 or 4
FSM Status 2 Start calibrate pH 10 or 4 0x06 5000 0x0104
Insert buer pH10 or 4
Stable readings (poll
until stable)
Check read FSM Status register
until FSM Status gets 7
0x03 5002 1 7 Integer
Write specied value of stand-
ard solution
0x10 1000 IEEE 754
Float
2 IEEE
754
Float