Operating instructions

METTLER TOLEDO DE40/50/51 Density Meter 81
Automatic sampling pump
Warning:
If using samples and rinsing solutions which
could create poisonous or corrosive gases,
connect the exhaust tube to the exhaust
connector and lead the other end to a system
capable of disposing of these gases.
- Connecting the waste bottle:
Connect the black tube from the pump unit to
the higher connector of the bottle cap and
tighten the screw firmly. Push the transparent
tube from the pump unit into the ohter
connector of the bottle cap, so that it
protrudes ca. 30 mm below. Then tighten the
screw firmly.
Note: If the connectors are not screwed in tightly, the pump will not (or hardly) be able to
move the sample.
- Pull out the plate for the waste bottle on the left side of the instrument, place the white plastic
mug on it, and put the waste bottle in the mug.