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7 safety, errors, troubleshooting, diagnosis, glp – Metrohm 746 VA Trace Analyzer User Manual

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7 Safety, Errors, Troubleshooting, Diagnosis, GLP

746 VA Trace Analyzer / 747 VA Stand

7-14

Error message

Meaning/Causes

Rectification

Exit

DIALOGUE - ERROR 6:
Abort resets VA
Trace Analyzer

Warning that pressing the

(abort) key initiates an auto-

matic reset at the 746 VA Trace

Analyzer

press to initiate the automatic

reset

press to prevent the automatic

reset

r/a

DOSIMAT - ERROR 1:
Cylinder empty

Dosimat/Dosino cylinder is

empty, no dispensing is

possible in manual operation

Fill Dosimat/Dosino cylinder by pressing

the softkey

E/S

DOSIMAT - ERROR 2:
Illegal Dosimat number

Wrong Dosimat number

Set Dosimat number to 1...4

E/S

DOSIMAT - ERROR 3:
V.meas max too low for
dosing

Dispensing is not possible as

the inputted maximum meas-

uring vessel volume

V.meas

max

would be exceeded

Check dispensing instructions on the

”OP.SEQUENCE” and ”SEGMENTS”

pages or, if possible, increase

V.meas

max

E/S

DOSIMAT - ERROR 4:
Dosimat overload

Dosimat/Dosino can not

dispense (drive jammed)

Press

key on

the ”DOSIMATS” page

E/C

DOSIMAT - ERROR 5:
Unlawful stopcock
position

Wrong stopcock position of

Dosimat/Dosino

Press

key on

the ”DOSIMATS” page

E/S

DOSIMAT - ERROR 6:
Dispensing volume too
large

Volume to be dispensed too

large for mounted Exchange or

Dosing Unit

Use larger Exchange or Dosing Unit or

reduce volume to be dispensed

E/S

DOSIMAT - ERROR 7:
Safety volume reached

Dispensing not possible as

safety volume of Dosimat/

Dosino would be exceeded

Increase safety volume or use larger

Exchange or Dosing Unit

E/S

DOSIMAT - ERROR 8:
Missing device

Dosimat/Dosino not attached

or connecting cable faulty

Attach Dosimat/Dosino, check con-

necting cable

E/S

DOSIMAT - ERROR 9:
No Exchange Unit

No exchange Unit mounted on

the Dosimat

Mount Exchange Unit

E/S

DOSIMAT - ERROR 10:
Illegal dosing units

Inadmissible dispensing units

are mounted on the Dosinos

Mount different Dispensing Units

E/S

DOSIMAT - ERROR 11:
Illegal Dilution
settings

Inadmissible dilution settings

on the "DOSIMATS" page (e.g.

V.tube out

too low for

pipetting volume, cylinder

volume too low, pipetting

volume < 10

µ

L)

Change parameters for

Dil.settings

on the "DOSIMATS" page

E/S

EVAL - ERROR 1:
Evaluation occupied

The evaluation routine can not

be used at present

Wait and retry

E/C

EVAL - ERROR 2:
Evaluation not possible

No evaluation is possible with

the selected measurement

mode ”CYCMODE”

Change measurement mode

E/C

EVAL - ERROR 3:
Double peak: missing
rear peak

No peak at rear in the double

peak evaluation

The peak at the rear has not

been evaluated

If there is no 2

nd

peak at rear, set

Scope

to

whole

,

f.half

or

r.half

Check peak recognition for peak at

rear

E/C

EVAL - ERROR 4:
Double peak: wrong
baseline type

In the double peak evaluation,

both peaks must be evaluated

with the same baseline type

Set baseline type

Type

the same for

both peaks

E/C

EVAL - ERROR 5:
Double peak: missing
front peak

No peak at front in the

double peak evaluation

The peak at the front has not

been evaluated

If there is no 2

nd

peak at front, set

Scope

to

whole

,

f.half

or

r.half

Check peak recognition for peak at

front

E/C

EVAL - ERROR 6:
Half peak: illegal
baseline scope

With selected baseline type,

selection of

f.half

or

r.half

is not admissible

If half-peak evaluation desired, set

baseline type to

linear

, otherwise set

Scope

to

whole

or

f.double

or

r.double

E/C