Hach-Lange HQ411D Basic User Manual - Manual (Page 14)

Replace the batteries
W A R N I N G
Explosion hazard. Incorrect battery installation can cause the release of explosive
gases. Be sure that the batteries are of the same approved chemical type and
are inserted in the correct orientation. Do not mix new and used batteries.
For battery replacement, refer to Figure 10 .
1. Loosen the three battery cover screws and remove the battery cover
( Figure 10 ).
Note: Do not remove the screws from the battery cover.
2. Remove the batteries.
3. Install 4 AA alkaline or 4 AA nickel metal hydride (NiMH) batteries.
Make sure that the batteries are installed in the correct polarity.
4. Replace the battery cover.
Note: Do not over-tighten the screws.
Figure 10 Battery replacement
Troubleshooting
Refer to the following table for common problem messages or
symptoms, possible causes and corrective actions.
Error/Warning Description Solution
Connect a Probe Probe disconnected
or connected
improperly Tighten the locking nut on the
probe connector.
Disconnect the probe and then
connect the probe again
Software not
updated to most
current version To download the most current
version of the software, refer to
the applicable product page on
the manufacturer's website.
Problem with probe Connect a different IntelliCAL
probe to verify if problem is with
probe or meter
Probe Not Supported Probe disconnected
or connected
improperly
Tighten the locking nut on the
probe connector.
Disconnect the probe and then
connect the probe again.
Software not
updated to most
current version To download the most current
version of the software, refer to
the applicable product page on
the manufacturer's website.
Problem with probe Connect a different IntelliCAL
probe to the meter to verify if
problem is with the meter or the
probe.
HQd meter does not
support IntelliCAL
probe Contact Technical Support.
Bootloader
X.X.XX.XX error Software not
updated to most
current version. To download the most current
version of the software, refer to
the applicable product page on
the manufacturer's website.
14 English