Metrohm 870 KF Titrino plus Manual - Manual (Page 81)

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10 Appendix
870 KF Titrino plus
￭￭￭￭￭￭￭￭ 71
10.2 Stirring rate
The stirring rate can be adjusted in steps of –15 to +15.
The approximate rotational speed can be calculated with the following
formula:
Rotational speed/min (r/min) = 125 · stirring rate
Example:
Stirring rate set: 8
Rotational speed in rpm = 125 · 8 = 1000
2000
1500
1000
500
-15 -10 -5 0 5 10 15
r/min
Figure 15 Rotational speed depending on stirring rate
10.3 Balance
The sample size and the associated unit can be sent from a connected bal-
ance. The sample size is transmitted as a number with up to ten charac-
ters (including algebraic sign and decimal point).
Sample size and unit are sent as a single character string. They are separa-
ted by a space character. The string is terminated with the ASCII charac-
ters CR and LF.
If the balance sends a negative sample size (e.g. when you are reweighing
a sample), then the algebraic sign is adopted. The algebraic sign is, how-
ever, ignored for the calculations.
NOTE
With some balances, the sample identification and the method can be
sent in addition to the sample size.
Make sure that the balance does not send the sample size until the end.