Mettler Toledo GA42 Operations Instructions download pdf (Page 28)

26 METTLER TOLEDO DL36

Error messages and malfunctions

10. Error messages and malfunctions

10.1 Error messages of the DL36

Error message

A.Capacity Over!

C.Capacity Over!

Current error!

Elect open!

Elect short!

Meas. Over!

Over Titr.!

Para set miss!

Pre Amp Err-XX

Cause

The summed electrolytic current

(converted to mg H

2

O) of the anolyte

is greater than its capacity

The summed electrolytic current

(converted to mg H

2

O) of the catholyte

is greater than its capacity

There is no current flowing between

anode and cathode

The detection electrode is not working

properly (break)

The detection electrode is not working

properly (short circuit)

Measurement range exceeded. The

amount of moisture in this sample is

greater than 100 mg H

2

O

Overtitrated: the anolyte contains an

excess of iodine

Neither of the two abort parameters

t(max) and drift stop is defined

Error in the preamplifier

10.2 Other malfunctions

Fault

Instrument can not

be switched on

Malfunctions of

the stirrer

Possible causes

No line voltage

Power cable not connected

Fuses faulty

Stirrer speed set to 0

Measures

Check power cable, on/off switch, voltage

selector and fuses

Check stirring speed (stirrer key and size

of the magnetic stirrer (35 mm)

Measures

• Change anolyte

• Set capacity of the anolyte to 0 (see

Section 8.1)

• Change catholyte

• Set capacity of the catholyte to 0 (see

Section 8.1)

• Check anolyte and catholyte

• Check supply leads of cathode and

anode

Plug in electrode correctly

Rectify short circuit (align platinum pins

correctly)

Change catholyte, inject smaller amount

of sample

• Clean anode

• Protect instrument against direct

sunlight

Define either t(max), the drift stop or

both parameters

Contact METTLER TOLEDO Service

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