Calibration Procedure - Lovibond TB 300 IR Mode D'emploi

for frequent calibration is minimised. Perform calibration with T-CAL every 3 months or if
required, more often.

2.3.5.2 Calibration procedure

Note: Calibration may be canceled at any time by pressing the [ESC] key (not during a current
countdowns). The latest calibration persist.
Cal
<NTU adjustment>
standard:
< 0,1 NTU
Read
Avg
Count-Down
1:00
<NTU adjustment>
standard:
20 NTU
Read
Avg
Count-Down
1:00
<NTU adjustment>
standard:
200 NTU
Read
Avg
Count-Down
1:00
<NTU adjustment>
standard:
800 NTU
Read
Avg
Count-Down
1:00
TB300 IR 6 03/2022
Press the [Cal] key to start the calibration.
Place the < 0.1 NTU standard in the sample chamber
making sure that the marks aligned. Place the cover on
the instrument.
Press [Read / Avg] key.
The countdown starts.
After the countdown is finished the reading starts auto-
matically.
Invert the 20 NTU standard and place in the sample chamber,
making sure that the marks aligned.
Place the cover on the instrument.
Press [Read / Avg] key.
The countdown starts.
After the countdown is finished the reading starts auto-
matically.
Invert the 200 NTU standard and place in the sample cham-
ber, making sure that the marks aligned.
Place the cover on the instrument.
Press [Read / Avg] key.
The countdown starts.
After the countdown is finished the reading starts auto-
matically.
Invert the 800 NTU standard and place in the sample cham-
ber, making sure that the marks aligned.
Place the cover on the instrument.
Press [Read / Avg] key.
The countdown starts.
After the countdown is finished the reading starts auto-
matically.
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