4.2 Replacement of Consumables
HA-8190V 4-17
4.2.5 Maintaining the Nozzle Washing Block and O-ring/Replacing the
Piercing Nozzle
Cleaning the nozzle washing block and replacing the O-ring
Replace the O-ring of the nozzle washing block every 3000 measurements. Hemolysis washing solution may leak from
the nozzle washing block if the O-ring degrades. The piercing nozzle may not be adequately washed as a result. Always
clean the bottom of the nozzle washing block when replacing the O-ring.
Replacing the piercing nozzle
Replace the piercing nozzle every 60000 measurements. A clogged or damaged nozzle also requires replacement. Also
replace the O-ring of the nozzle washing block when replacing the piercing nozzle.
Prepare: O-ring (for nozzle washing block), piercing nozzle (when replacing)
, Phillips screwdriver, tweezers AA,
purified water, cotton swabs, gauze, tissue paper
, protective tube (for piercing nozzle maintenance) and
protective gloves
1 Move the piercing nozzle.
a On the standby screen, touch , <7. Maintenance menu> and <2. Piercing nozzle> in that order.
b Touch .
• Liquid will be drained from the piercing nozzle and the piercing nozzle will move to the front.
c Wait for the screen shown on the right to appear.
Wear protective gloves to prevent exposure to pathogenic microbes.
Discard used piercing nozzle, O-ring, cleaning tools and protective gloves in accordance
with local regulations for biohazardous waste.
The mechanical section of the piercing nozzle stops automatically if the front cover is opened.
Follow the instructions described below to avoid injury and damage to the instrument.
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