AquaLab TDL 12 TROUBLESHOOTING
back of the instrument and it is plugged into the power outlet.
2. A power surge may have caused a fuse to blow. To change the
fuses, follow instructions a through d.
(a) Unplug the power cord.
(b) Locate the panel where the power cord plugs in. The fuse
box is on the right side of that panel. Press in on the
release tab and pull the fuse-holder out. Pull the broken
fuse(s) out and replace with a 1.25-A 250-V fuse.
Caution: Do not use any other kind of fuse or you
risk damage to your instrument as well as void
your warranty.
(c) Replace the fuse-holder and push it into the fuse-well until
the release tab snaps in place.
(d) Connect the power cord and turn your instrument on. If
the fuse blows again, a failed component may be causing
the problem. Contact METER to make arrangements for
repairs. (See Section 13)
2. PROBLEM:
Readings are slow or inconsistent.
SOLUTIONS:
1. The sample chamber may be dirty. Refer to Section 6 for di-
rections on cleaning the sample chamber.
2. The temperature difference between the sample and the block
chamber may be too great. The sample must equilibrate to
instrument temperature before a making a fast and accurate
reading. (Refer to Section 8)
3. Some products absorb or desorb moisture very slowly, causing
measurements to take longer than usual, and nothing can be
done to speed up the process. Refer to Section 8 for further
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