Lighthouse RLPC 0.1mm, Operating Manual

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248083296-1 Rev 3 A-1
A
Maintenance
Flow Cell
Cleaning
The Flow Cell is an integral part of the RLPC sensor and must be
cleaned periodically to maintain the counting accuracy of the sensor.
The RLPC sensor will detect when its flow cell needs cleaning and
indicate this by turning on the service LED. Refer to “Understanding
the LEDs” on page 2,
Chapter 3, ‘Get Started”, for LED details.
WARNING:
Please
follow all standard
precautions for working
with liquids around
electronic devices. Use
Personal Protection
Equipment, such as face
shields and gloves, when
working with hazardous
liquids.
Cleaning Procedure
The flow cell cleaning brush is included in the RLPC package.
1. Turn off power to the RLPC and disconnect all cables.
2. Stop liquid flow to the RLPC.
3. Wrap a towel around the outlet nozzle to prevent liquid from
spilling on the sensor.
Note:
Some resistance
will be felt as the cleaning
brush enters the flow cell.
Do not force the brush if
too much resistance is
encountered. Do NOT
insert more than 3/4-inch
from start of flow cell entry.
4. Unscrew the flare nuts on the inlet and outlet nozzles, remove the
tubing and make sure the instrument drains the liquid safely.
5. Dip the flow cell cleaning brush into Micro90
TM
cleaning solution.
6. Insert the cleaning brush into the outlet nozzle until a resistance is
felt. Measure 3/4" from the Outlet Nozzle tip and move thumb and
forefinger to this point (refer to Figure A-1).
Figure A-1 Flow Cell Cleaning with 3/4-inch Limit
3/4-inch