Measurement Error Indications - Sartorius PT-15 Bedienungshandbuch

Measurement Error Indications

Indications
In pH measurement,
the meter displays "----"
In mV measurement,
the meter displays "----"
In Temperature measurement,
the meter displays "----"
Reasons
§ Buffer temperature is out of the 0 to
60°C range;
§ The pH sensor slope is off by more
than ±30% of the ideal slope; the buffer
is incorrect.
Solutions:
§ Check expiration of buffers.
§ Refill fillable sensor
(see sensor instruction).
§ Clean sensor (see sensor instructions).
§ Make sure correct buffer set is selected
in the meter.
The pH value is out of the
–2.00 pH to 16.00 pH range
The mV value is out of the
–1999 mV to 1999 mV range
The temperature is out of the
–10.0°C to 120.0°C range
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