Operating instructions

80 METTLER TOLEDO DE40/50/51 Density Meter
- Install the ASU-DE in the place of the air
pump.
a) Slide in the ASU-DE down and to the left,
adjusting its bottom fitting to the angle
hole of the main unit.
b) Fasten the ASU-DE by the three screws
which were used to hold the air pump.
c) Connect the pump connector (3 black,
2-poles) and solenoid connector (4 white,
3 poles) to the main unit.
d) Connect the dry tube (5) to the joint for
the desicator tower.
- Install rear panel (Follow reverse steps from above).
- Attach the supplied seal (Align to line ”A”).
- Connect the air tube (tygon, with Teflon
connector at one and PP connector at the
other) to the dry air out (without black
tightening clamp).
- Insert the sampling tube (one connector only)
into the measuring cell inlet (lower port),
connect the drain tube (two connectors) to
the measuring cell out (upper port) to the
pump-in connector (black clamp).
Note: Make sure the white Teflon tube
nozzles are firmly tightened clockwise.
Automatic sampling pump
5
3
4