Hach LANGE sensION + Manual Del Usuario página 14

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Error/Warning
Description
Measurement out
of range.
Battery is low.
E1
Unstable reading
during a stability
measurement or
during calibration.
E2
Probe current:
exceeded upper
limit during
measurement ≥
250 nA.
E2
pH probes
sensitivity out of
range (accepted
values 70–105%).
14 English
Solution
• Insert the probe into the appropriate
standard and read again.
• Clean the probe and the membrane.
• Make sure that there are no air
bubbles in the membrane.
• Disconnect the probe and then
connect the probe again.
• Connect a different probe to verify if
problem is with probe or meter.
Insert new batteries.
Make sure that the probe is properly
immersed in the sample.
• Clean the probe and the membrane.
• Make sure that there are no air
bubbles in the membrane.
• Disconnect the probe and then
connect the probe again.
• Connect a different probe to verify if
problem is with probe or meter.
• Make sure that the correct probe is
connected to the meter.
• Connect a new probe.
Error/Warning
Description
E2
During calibration,
the difference
between the
constants gets >
30%.
E3
During calibration,
the cell constant
-1
gets < 0.05 cm
.
E3
Slope out of range
(accepted values ±
58 mV).
E4
Buffer solution not
recognized.
Solution
• Insert the probe into the appropriate
standard and read again.
• Clean the probe and the membrane.
• Make sure that there are no air
bubbles in the membrane.
• Disconnect the probe and then
connect the probe again.
• Connect a different probe to verify if
problem is with probe or meter.
• Connect a new probe.
• Insert the probe into the appropriate
standard and read again.
• Clean the probe and the membrane.
• Make sure that there are no air
bubbles in the membrane.
• Disconnect the probe and then
connect the probe again.
• Connect a different probe to verify if
problem is with probe or meter.
Connect a new probe.
• Clean the probe and the membrane.
• Make sure that there are no air
bubbles in the membrane.
• Disconnect the probe and then
connect the probe again.
• Connect a different probe to verify if
problem is with probe or meter.
• Make sure that the buffer used
matches the buffer specified in
configuration.
• Replace the buffer solution.
• Make sure of the temperature
specification in configuration.

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