VACUUBRAND MZ 2C +AK+EK - Manual (Page 14)

page 14 of 28
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. Manual-no.: 995653 / 06/10/2009
During operation:
Do not start pump if pressure difference between inlet and outlet port exceeds max.
1 bar. Attempts to start pump at higher difference may cause blockade and damage of
the motor.
☞ Check compatibility with max. permitted pressure at outlet and max. pressure
difference between inlet and outlet ports.
Due to the high compression ratio of the pumps, pressure at the outlet port might be
generated being higher than the max. permitted pressure compatible with the mechanical
stability of the system.
The pump achieves its pumping speed, ultimate total vacuum and vapour pumping
rate only at operating temperature (after approx. 15 minutes).
☞ Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves
will be damaged, if liquids are pumped in significant amounts.
☞ Let the pump run with gas ballast to reduce condensation of pumped substances
(water vapour, solvents, ....) in the pump.
☞ When assembling, ensure vacuum-tightness. After assembly, check the complete
system for leaks.
Round bottom flasks:
The catchpot at the inlet prevents droplets and particles from
entering the pump.
☞ Lifetimes of diaphragms and valves are enhanced.
☞ Improves vacuum in case of condensation.
Both round bottom flasks are coated with a protective layer to
prevent disintegration in case of breakage or implosion.
➨ Assemble the catchpots at the inlet and at the outlet using
joint clips.
Exhaust waste vapour condenser:
➨ Assemble hose nozzles for coolant inlet and coolant outlet
pipelines at the exhaust waste vapour condenser.
The exhaust waste vapour condenser enables an efficient
condensation of the pumped vapours at the outlet.
☞ No backflow of condensates.
☞ Controlled recovery of condensates.
☞ Next to 100% solvent recovery.
☞ The isolation cover protects against glass splinters in case
of breaking, acts as thermal isolation to avoid condensation
of humidity and is intended to absorb shocks.
➨ Attach the pipelines of the coolant circuit to the respective hose nozzles (see im-
age) at the waste vapour condenser. Check hose connections prior to starting op-
eration of the cooling system.
➨ Secure coolant hoses at the hose nozzles (e.g. with hose clip) to prevent their
accidental slipping.
☞ Ensure that the coolant outlet pipeline is always free and that it cannot get blocked.
☞ The gas outlet (hose nozzle 10 mm) must not be blocked. The exhaust pipeline has
always to be free and pressureless to enable an unhindered discharge of gases.
☞ Connect the exhaust to a suitable treatment plant to prevent the discharge of dan-
gerous gases and vapours to the surrounding atmosphere.
overpressure
safety relief
device
catchpot
at outlet
MZ 2C + AK + EK / MZ 2C + AK Synchro + EK / MZ 2C + 2 AK
with separator at the inlet and exhaust waste vapour condenser at the outlet:
catchpot
at inlet
coolant outlet
(hose nozzle 6 mm)
coolant inlet
(hose nozzle 6 mm)
outlet
(gas!; hose nozzle 10 mm)