O, s, M, a – Metrohm 746 VA Trace Analyzer User Manual

Page 422

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5.7.3 Alphabetical instruction list

746 VA Trace Analyzer / 747 VA Stand

5-271

RDE

Page:

O, S

Stand:

M, A

Abbreviation:

RD

Instructions t/s Main parameters Auxiliary parameters

––––––––––––– ––––– ––––––––––––––––––––––––– –––––––––––––––––––––––––

## .. RDE ..... Rot.speed ......../min

Function

Switch on Rotating Disk Electrode (RDE).

Application

The RDE is used for direct and stripping determinations with solid
electrodes. Cyclic voltammetry and PSA are also possible with the RDE.

Parameter

Range; Default value / Meaning

Rot.speed

0, 200, 400, ..., 3000 /min; 2000 /min

Rotational speed

Setting of the number of revolutions of the rotating electrode per min.

The set drop time

t.drop

important for certain parameter settings is

0 ms for the RDE by definition.

Description

The

RDE

instruction is used to switch on the rotating disk electrode,

which comprises the 6.1246.000 Drive shaft and the 6.1204.XXX
Electrode tip. A voltage sweep can be carried out at the rotating
electrode.

t

F

Comments

Within a program, the RDE is not switched off until the

ØSTIR

instruc-

tion or the selection of a different electrode type (

DME

,

SMDE

or

HMDE

).

The RDE is also switched off by

END

in the main program on the

"OP.SEQUENCE" page, but not by

END

in the segment.

The RDE can be used for all measurement modes and sweeps.

see also

DME, SMDE, HMDE

Area

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