Hach sensION+ EC5 DL, User Manual

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For battery replacement, refer to Figure 12 . Make sure that the cover is
tightly closed to maintain the IP67 enclosure rating.
Figure 12 Battery replacement
Troubleshooting
Refer to the following table for common problem messages or
symptoms, possible causes and corrective actions.
Error/Warning Description Solution
Measurement out
of range.
• 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.
Battery is low. Insert new batteries.
E1 Unstable reading
during a stability
measurement or
during calibration. Make sure that the probe is properly
immersed in the sample.
E2 Probe current:
exceeded upper
limit during
measurement ≥
250 nA.
• 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.
E2 pH probes
sensitivity out of
range (accepted
values 70–105%).
• Make sure that the correct probe is
connected to the meter.
• Connect a new probe.
16 English