Xylem MULTI 3400i pH/Oxi MULTI-PARAMETER METERS Manual de usuario descargar pdf (Pagina 66)

What to do if... pH/ 3400i

Measured value too low

Measured value too

high

6.3 General errors

Display LoBat

Instrument does not

react

to keystroke

Display to

toto

Probe symbol flashes

Message StoFull

StoFullStoFull

StoFull

Cause Remedy

– Insufficient flow – Provide flow to the probe

Cause Remedy

– High amount of dissolved

substances

– Correct solubility function

using the salinity equivalent

– Air bubbles bump on the

membrane with high velocity

– Avoid direct flow to the

membrane

– The carbon dioxide pressure is

too high (> 1 bar)

– Measuring not possible

Cause Remedy

– Batteries almost empty – Exchange the batteries (see

section 5.1 M

AINTENANCE)

Cause Remedy

– Operating condition undefined

or EMC load unallowed

– Processor reset:

Switch the instrument on

while pressing the <CAL> key

Cause Remedy

– Time-out of the interface – Check the instrument that is

connected

Cause Remedy

– Calibration interval expired – Recalibrate the measuring

system

Cause Remedy

– All memory locations are full – Output data storage and clear

data storage

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Xylem MULTI 3400i pH/Oxi MULTI-PARAMETER METERS Manual de usuario Pagina 66

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