Specifications

CO
2
Analyzer 2810/2815/2820
Instruction 19-9222
6
2.12 Powering Analyzer from Charger
The analyzer can be continuously powered by its charger by connecting
the charger as follows:
1. Switch ON the analyzer without the charger attached.
Note: Connecting a charger to an analyzer that is switched
OFF causes the analyzer to enter its charging mode, which in
turn prevents the analyzer from being switched ON.
2. Plug the charger into the appropriate AC wall socket (or 12 VDC when
using the optional cigarette lighter adapter). Then plug the charger’s
output connector into the analyzer’s charging socket (Figure 1,
Item G).
The analyzer will now continuously run until it is switched OFF.
2.13 Troubleshooting for Slow or
Low Readings (2820)
It normally takes between 1 and 2 minutes to obtain a peak reading
when testing an incubator. A slow or low reading can be caused by either
a clogged desiccant lter or a contaminated CO
2
sensor. Do the following
to test for slow or low readings:
1. Remove both lters and sample again.
2. If this cures the problem, rst replace the desiccant lter
(P/N 07-1645) and sample again. Note that the particulate lter rarely
becomes clogged, but if the problem returns with both ters installed,
replace the particulate lter (P/N 54-0548).
3. If the problem persists with the lters removed, reset the instrument
to the factory settings per Section 3.5. If the reset is OK, then calibrate
the instrument per Section 3.7.2.
4. If the factory reset fails, the CO
2
sensor is contaminated and the in-
strument needs to be returned to Bacharach for repair and calibration.