Metrohm 746 VA Trace Analyzer - Manual (Page 462)

5.7.3 Alphabetical instruction list
746 VA Trace Analyzer / 747 VA Stand
5-311
VWASH Page: O, S Stand: A Abbreviation: VW
Instructions t/s Main parameters Auxiliary parameters
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## .. VWASH ..... V.add ........mL
Function Additional wash volume for subsequent dispensing or transfer instruction
on the 695 Autosampler.
Parameter Range; Default value / Meaning
V.add 0.010...10.000 mL; 1.000 mL
Addition volume
Additional solution volume that is delivered following the dispensing or
transfer instruction.
Description The VWASH instruction delivers an additional wash volume V.add of
hydraulic solution following a dispensing or transfer instruction on the
695 Autosampler. This ensures that the preceding solution transfer was
actually complete.
Comment • The VWASH instruction refers only to the immediately following
dispensing or transfer instruction.
• The VWASH instruction can be used with the following dispensing or
transfer instructions for the 695 Autosampler:
SMPL>M
DOS>M, DOS>A, DOS>F, SDOS>M, SDOS>A, SDOS>F, PDOS>M
ADD>M, PADD>M, CSOLN>M, RADD>M, RADD>F
A>M, F>A, F>M
• For solution transfers on the 695 Autosampler, the following generally
holds:
Transfer volume VWASH Siphoning off Delivery
< 200 µ L V.add = 0 100% 100%
V.add > 0 100% 100% + V.add
≥ 200 µ L V.add = 0 105% 100% (+ 5% in waste)
V.add > 0 100% 100% + V.add
see also DOS>A, DOS/M, DOS>M, DOS>F, PDOS>M, SDOS>M, SDOS>A,
SDOS>F, ADD/M, ADD>M, PADD>M, RADD>F, RADD>M