Hach sensION+ User Manual page 13

Error/ Description
Warning
E2 Probe current:
exceeded upper
limit during
measurement ≥
250 nA.
pH probes
sensitivity out of
range (accepted
values 70–105%).
During calibration,
the difference
between the
constants gets >
30%.
Solution
Examine the 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 correct probe is connected
to the meter.
Connect a new probe.
Insert the probe into the appropriate standard
and read again.
Examine the 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.
Connect a new probe.
Error/ Description
Warning
E3 During calibration,
the cell constant
-1
gets < 0.05 cm .
Slope out of range
(accepted values ±
58 mV).
E4 Buffer solution not
recognized.
Salinity cannot be
calculated TC=0
Solution
Insert the probe into the appropriate standard
and read again.
Examine the 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.
Connect a new probe.
Examine the 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.
Examine the buffer solution:
• Make sure that the buffer used matches
the buffer specified in configuration.
• Replace the buffer solution.
• Make sure of the temperature
specification in configuration.
Modify TC
English 13