Metrohm 765 Dosimat - Manual (Page 12)

2.2. Modes
765 Dosimat
8
Calculation values
b = 0. ml Blank value
Input range: 0...±999.999 mL
f = 1.
Factor
Input range: 0... ±1E33
s = 1. Sample size
Input range: 0... ±1E33
Input manually or on-line with balance, see page 56
unit Unit
Input range: ppm, %, g, mg, g/L, mg/L, mol, mol/L, mL, L,
/pc, none
Result calculation
If one of the calculation values (blank, factor, smpl) is not set to its standard value, a
result is calculated on filling of the Dosimat according to formula:
(dosed volume–blank)*factor
Result = ————————————————
smpl
The result is recalculated on each entry of a calculation value (blank, factor, smpl).
Pressing display shows the dosed volume in mL. To start a new dosing, press
twice, pressing once resets the volume in display to 0.000 mL.
Printing the result on a printer
If Dosimat is set to
send RS 232 on
(special settings see page 18), filling the Dosimat or
re-calculation triggers a print command. A continuous number (#), the dosed volume and
the calculated result are printed.
Do set new calculation parameters for the next dosing only after having pressed
once, i.e. if display shows
DOS 0.000 ml
.
The continuous number is set to zero on switching on the Dosimat and incremented by 1
on every filling command.
Example of print-out
7
BLANK
SMPL
8
FACTOR
UNIT
9
4
#01 V = 0.352 ml R = 7.04 ppm
#02 V = 0.440 ml R = 8.8 ppm
#03 V = 0.000 ml
#04 V = 0.364 ml R = 7.28 ppm
#05 V = 0.438 ml R = 8.76 ppm
#06 V = 0.382 ml R = 7.64 ppm
#07 V = 0.370 ml R = 19.61 %
#08 V = 0.372 ml R = 19.72 %