Hanna Instruments HI 9828 Instruction Manual page 55

• "Probe critical error": a probe generic error
occurred. Turn the meter off, disconnect the
probe and connect it again. If the problem per-
sists, contact the HANNA service center.
• "None of the enabled measurements is avail-
able": this message appears in measurement
mode if no one of the selected parameters is
available because the corresponding sensors
are not mounted on the probe. Turn the meter
off, install the required sensor and proceed with
measurements.
• "Please disconnect probe from meter before in-
stalling or removing any sensor!": this message
appears if the operator removes or mounts a
sensor with the meter on and the probe con-
nected. To avoid sensor or probe damages,
please turn the meter off before performing any
operation on the probe.
• "Error - Valid sensors config. is Temp, pH, ORP ,
Cond., DO, Pressure" or similar messages: the
user is trying to record new samples with differ-
ent sensor configuration in an existing lot. All
logged samples in the same lot must have the
same sensor configuration. Press <OK> and
change lot.
• "Error - Current date and time precede the last
logged sample!": the user is trying to record
new data in an existing lot, but the current time
and date of the meter precede the time and
date of last logged data for the selected lot.
Press <OK>, set a correct value for time and
date or log in a different lot.
• "I2C bus error!": the internal transmission is
not recognized or a certain number of trans-
mission attempts have been unsuccessful. Turn
the meter off and on again. If the problem per-
sists, contact the HANNA service center.
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