VACUUBRAND PC 2001 VARIO - Manual (Page 13)

page 13 of 49
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.: 999100 / 06/05/2008
pressure
transducer
VSK 5
connector
for VSK 5
The cable of the gauge head is connected to the female con-
nector at the rear side of the vacuum controller.
The gauge head is connected to the vacuum system with a
union nut using an adapter.
☞ The device is adjusted together with the gauge head at the
factory. If the gauge head is replaced a readjustment is rec-
ommended.
Max. permitted pressure at the pressure transducer: 1.5 bar (ab-
solute).
☞ The display flashes at a pressure higher than 1100 mbar.
☞ Comply with max. permitted pressure.
☞ Inside a vacuum system where evaporation occurs, e. g.
rotary evaporator, the vacuum is not uniform, e. g. a con-
denser acts as pump or the vacuum in the pipeline is lower
than in the system. Therefore carefully choose position where
to connect the gauge head.
☞ Condensate and deposits in the pressure transducer affect the measuring result.
☞ In case of deposits, aggressive or condensable media, install a gas washing bottle
before the pressure transducer if necessary.
☞ In order to avoid malfunction it is important to position the pressure transducer in
the vacuum line so as to avoid flow of condensate towards the pressure transducer.
☞ Clean pressure transducer if necessary, see section “maintenance“.
Before operation
The exhaust waste vapour condenser enables an efficient con
The pressure transducer can be disassembled from the inlet of the pumping unit and,
after having unscrewed the adapter, assembled using a small flange connection or a
hose nozzle (included in delivery) directly to the apparatus.
Close the connection at the inlet of the pumping unit using a blind cap (cat. no.: 67 71 50).
☞ 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.
Notes regarding the assembling of the pressure transducer VSK 5
Hose nozzle (inlet of the pumping unit):
☞ Alternatively the hose nozzle or a second hose nozzle (in-
cluded in delivery) can be assembled at position 1 or 2 at
the inlet of the pumping unit.
➨ Change closing screw and hose nozzle. Ensure that the O-
ring is correctly positioned.
1
2