General Errors - wtw pH/Oxi 340i Operating Manual

What to do if...
Measured value too low
Measured value too
Display LoBat
Instrument does not
to keystroke
Display
Probe symbol flashes
Message StoFull StoFull StoFull StoFull
66
Cause
– Insufficient flow
Cause
high
– High amount of dissolved
substances
– Air bubbles bump on the
membrane with high velocity
– The carbon dioxide pressure is
too high (> 1 bar)
6.3

General errors

Cause
– Batteries almost empty
Cause
react
– Operating condition undefined
or EMC load unallowed
to to
to to
Cause
– Time-out of the interface
Cause
– Calibration interval expired
Cause
– All memory locations are full
Remedy
– Provide flow to the probe
Remedy
– Correct solubility function
using the salinity equivalent
– Avoid direct flow to the
membrane
– Measuring not possible
Remedy
– Exchange the batteries (see
section 5.1 M
AINTENANCE
Remedy
– Processor reset:
Switch the instrument on
while pressing the <CAL> key
Remedy
– Check the instrument that is
connected
Remedy
– Recalibrate the measuring
system
Remedy
– Output data storage and clear
data storage
pH/Oxi 340i
)