Metrohm 746 VA Trace Analyzer User Manual
Page 353
5.7 Program instructions
746 VA Trace Analyzer / 747 VA Stand
5-202
•
The
EXIT
instruction for premature exit from the CAL loop can be
included in this loop.
•
For the recording of a calibration curve, the program run mode
Run
mode = calibration
must be set on the "MONITORING" page. The
calibration solutions are then measured in turn and the coefficients of
the calibration curve determined. To store these permanently, the
method must then be copied from the working storage to the method
memory (this occurs automatically with
Auto.batch = on
).
Examples
Determinations using a calibration curve are normally programmed on
the "OP.SEQUENCE" page with the following basic structure:
:
C (CAL
Loop start for calibration
C CSOLN>M or CSOLN/M
Addition of calibration solution to
:
measuring vessel
C (REP
Loop start for replication
C SEGMENT Seg1
Call-up of the segment
:
(measurement of the calibration solution)
C REP)n
Loop end, n = number of replications
C ØMEAS
Switch off voltage (solution change)
C RINSE
Reset volume bookkeeping
C CAL)n
Loop end, n = number of calibration solutions – 1
:
D SMPL>M or SMPL/M
Sample addition to measuring vessel
D (REP
Loop start for replication
D SEGMENT Seg1
Call-up of the segment
:
(measurement of the sample)
D REP)n
Loop end, n = number of replications
:
In this example, the instructions for the calibration (
C
) and determination
(
D
) have been clearly separated from each other. If the calibration and
determination use the same number of replications, a shorter version of
the same program can be entered as follows:
:
D SMPL>M or SMPL/M
Sample addition to measuring vessel
C (CAL
Loop start for calibration
C CSOLN>M or CSOLN/M
Addition of calibration solution to
:
measuring vessel
(REP
Loop start for replication
SEGMENT Seg1
Call-up of the segment (measurement of
:
the calibration solution or sample)
REP)n
Loop end, n = number of replications
C ØMEAS
Switch off voltage (solution change)
C RINSE
Reset volume bookkeeping
C CAL)n
Loop end, n = number of calibration solutions – 1
: