Metrohm 746 VA Trace Analyzer User Manual

Page 392

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5.7.3 Alphabetical instruction list

746 VA Trace Analyzer / 747 VA Stand

5-241

Description

The

FSWEEP

instruction (Fast Sweep) starts the voltage sweep defined in

the parameters. During the sweep, the potentiostat always operates in
the operating mode "fast".

U

t

U.start

U.end

U.step

t.step

Comments

•

The electrode type must be defined before the

FSWEEP

instruction.

Admissible are

DME

,

SMDE

,

HMDE

or

RDE

.

•

The measurement mode must be defined before the

FSWEEP

instruction. Admissible are

DCTMODE

,

DPMODE

,

AC1MODE

,

AC2MODE

or

SQWMODE

, but not

PSAMODE

or

CYCMODE

.

•

The use of the

FSWEEP

instruction is practical only with the measure-

ment modes

DPMODE

and

SQWMODE

. With the other allowable meas-

urement modes,

FSWEEP

is identical to

SWEEP

.

•

The

FSWEEP

instruction should always be used instead of the

SWEEP

instruction with adsorptive stripping techniques (e.g. Ni and Co with
DMG).

•

With the

FSWEEP

instruction maximum 1000 measured values can be

recorded.

•

Apart from the

FSWEEP

instruction, no other SWEEP instruction is

allowed in the same segment.

•

If the final voltage

U.end

should not be switched off at the end of the

program, enter a suitable standby voltage

U.standby

in a

ØMEAS

instruction.

see also

SWEEP, DSWEEP, SSWEEP, DME, SMDE, HMDE, RDE, DPMODE,

SQWMODE

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