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

Page 363

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5.7 Program instructions

746 VA Trace Analyzer / 747 VA Stand

5-212

CONDC

Page:

O, S

Stand:

M, A

Abbreviation:

CO

Instructions t/s Main parameters Auxiliary parameters

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

## .. CONDC U.start ........mV Rate 1 ........mV/s

U.end ........mV Rate 2 ........mV/s

Cycles ........

Function

Electrochemical regeneration of carbon electrodes.

Parameter

Range; Default value / Meaning

U.start

-3000...3000 mV; -1200 mV

Initial voltage of conditioning cycles

Initial voltage for every conditioning cycle.

U.end

-3000...3000 mV; -100 mV

Final voltage of conditioning cycles

Final voltage for every conditioning cycle.

Cycles

1...60000; 10

Number of conditioning cycles

This parameter defines the frequency of conditioning of the electrode.

Rate 1

1...10000 mV/s; 1000 mV/s

Rate from U.start to U.end

Sweep rate for the conditioning cycles form

U.start

to

U.end

.

Rate 2

5...50000 mV/s; 10000 mV/s

Rate from U.end to U.start

Sweep rate for the conditioning cycles form

U.end

to

U.start

.

Description

The

CONDC

instruction starts a freely selectable number of conditioning

cycles for the electrochemical regeneration of carbon electrodes (e.g.
glassy carbon).

Comments

Before the call-up of

CONDC

, the

RDE

electrode must be selected. While

is possible to run

CONDC

with other electrode types, this is not realistic.

see also

RDE