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Metrohm 726 Titroprocessor User Manual

Page 191

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8. Command reference

8. Command reference

726 Titroprocessor, Instructions for use

185

185

On beaker error

Behavior with missing sample beaker

MOVE_S | display

If a beaker sensor finds that a sample beaker is missing

then this instruction can be used to carry out two sub-

sequent actions automatically:

display

An error message is displayed and

the operator must take action. The

instrument moves to the 'hold' condit-

ion and the changer can be operated

manually.

MOVE_S

The previous MOVE command is

carried out again; the changer "looks

for" the next sample beaker. A pre-

vious SAMPLE command will be

taken into account, i.e. with

'SAMPLE +2' the next but one sample

beaker will be moved to.

SAMPLE

Alteration of the run variable SAMPLE

The run variable SAMPLE is used as a sample counter during the process-

ing of a series of samples. It always refers to the current sample position in

the sample rack. It can be set manually with the 'Sample pos.' entry on the

Titroprocessor main page. However, a SAMPLE command will overwrite

this entry. When a sample has been processed the run variable will be

automatically increased by 1 so that in a method the next sample beaker

can always be brought into position with the command MOVE_S.

This run variable, and therefore the particular valid sample position, can be

specifically altered with this SAMPLE command. If the SAMPLE command

is used in a method then the automatic SAMPLE variable increase is

switched off.

Command Parameters Parameters

ДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД

SAMPLE

Function + Value 1

Function

Type of SAMPLE variable alteration

+ | – | =

The SAMPLE variable can be increased ('

+

') or de-

creased ('–'). Allocation of a specific value ('=') (setting

a particular sample position) only makes sense in an

(OMOVE) start sequence.