Metrohm 746 VA Trace Analyzer - Manual (Page 399)

5.7 Program instructions
746 VA Trace Analyzer / 747 VA Stand
5-248
ØMEAS Page: O, S Stand: M, A Abbreviation: Ø
Instructions t/s Main parameters Auxiliary parameters
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## .. ØMEAS ..... U.standby ........mV
Function Switch off voltage, current and DME.
Parameter Range; Default value / Meaning
U.standby -3000...3000 mV; -
Standby voltage after measurement
The voltage entered here is applied to the electrodes. This voltage
remains in force even after the end of the main program on the
"OP.SEQUENCE" page. It is switched off only by a new
ØMEAS instruc-
tion with U.standby = empty, by a MEAS instruction or by the new start
of a method.
The standby voltage U.standby is displayed on the "STAND" page.
If the voltage applied to the electrodes should be switched off,
U.standby must be empty (press to empty the contents of
the field).
Description The ØMEAS instruction is used to switch off the current measurement and
to apply the standby voltage U.standby to the electrodes. The dropping
mercury electrode DME is also switched off, i.e. the mercury flow is
stopped.
Comment If the solution in the measuring vessel is changed during the program
run (e.g. in the recording of calibration curves), the
ØMEAS instruction with
no standby voltage set ( U.standby = empty) must be inserted before the
solution change so that no voltage flows through the electrodes.
Examples
see (CAL
see also MEAS