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20901106_EN_MD4_MV2_VARIO_select_V1.0_140818
Connect the VACUU·SELECT Sensor via hose or small
flange connection to the vacuum application. Do not mount
the sensor directly at the pump but close to the applica-
tion. The cross-section of the tubing should be as large as
possible.
Inside a vacuum system where evaporation occurs, e.g.,
a rotary evaporator, the vacuum is not uniform. For ex-
ample, a condenser can act as a pump, or the vacuum in
the connecting tubing can be higher or lower than in the
application itself. This affects the measurement results as
well as the control levels. Therefore, carefully choose the
position where to connect the sensor.
Position the VACUU·SELECT Sensor and its vacuum line
in such a way that condensate cannot flow towards the
pressure transducer. Condensate and deposits will affect
the measurement results. Clean the pressure transducer,
if necessary. See section “Cleaning the pressure trans-
Installing the hose nozzle at the VACUU·SELECT Sen
-
sor
:
Unscrew the small flange. Slip hose nozzle with clamping
ring onto the vacuum connection and fasten with union
nut.
VACUU·BUS
The VACUU·SELECT controller uses VACUU·BUS proto
-
col to read out the pressure transducer via VACUU·BUS
line. Maximum cable length inside buildings: 32yd (30m).
VACUU·BUS extension cable 2.2 yd (2 meters): order-no.
20612552.
