other elevated rim result that feeds air to the pumping mechanism with a
ow of approximately 20 slm.
6.13 Gas ballast adaptor t
The manually operated gas ballast knob can be replaced by a gas ballast
adaptor which enables external electrically actuated valves or a controlled
gas supply to be used through a 1/4 inch push t connector. To install the
gas ballast adaptor:
1.
The gas ballast knob must be pulled out from gas ballast spindle by at
headed screwdriver or any similar tool can be used to lever the tting
free. To help position the tool underneath the knob it may be necessary
to partially rotate the knob in-between notches.
2.
Once the GB knob has been removed the internal valve can be
extracted using an 21 mm socket wrench.
3.
The adapter can now be installed using a 21 mm socket wrench. Make
sure that a clean O-ring is assembled onto the adapter before you start
installation.
6.14 Extra silencer removal
The pump is furnished by an additional removable silencer in the form of
a drilled M12 plug that can be removed by allen key of size 10. Removal is
advised when the exhaust of the pump is connected to additional exhaust
pipeline to gain up to 2 m
3
/h in pumping speed from atmosphere.
6.15 Mounting kit use
A mounting frame is available as an accessory (part number 162800A001).
This can be used to mount the pump to a cart or bolt it to the oor. The
mounting frame has four holes and two slots for M8 bolts. These are aligned
with the corresponding mounting positions on Leybold Phoenix leak
detector carts (center slots) or TURBOLAB turbo carts (four holes).
300902516_002 - 10/2020 - © Leybold
44
Operation
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