Gonotec OSMOMAT 050, Руководство пользователя

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OSMOMAT 050 User Guide Page 13 of 51
Version 1.1 (2011-10-12)
3 Setup and Initial Operation
The unit must be placed in a location free from vibrations and must be protected from direct sources
of heat such as sunlight, heaters or furnaces. The ambient temperature should be between 10°C and
35°C (50-95°F).
It is strictly necessary to place the device on a very sturdy surface. Otherwise, the sensitive pressure
measurement and the automatic end point detection may be disturbed.
Use the power cord provided to connect the OSMOMAT 050 from the power connector on the back of
the unit to a power outlet. Make sure the unit’s ground is enabled via the shockproof grounding.
If the power cord plug does not match the conventional power outlets in your location, you may substi-
tute another power cord. It is essential, however, that the cable’s green/yellow wire is connected to the
safety grounding.
It is also important to ensure that the voltage indicated on the serial number plate
matches that of your electricity network. Incorrect voltage will cause the fuse in the
power supply unit to blow.
The OSMOMAT 050 can now be switched on via the power switch on the back of the unit (next to the
power connector).
All work (unscrewing, screwing together or adding solvents) must only be performed
with the device switched on and in calibration mode (can be set by pressing the “CALI-
BRATION” button).
Excess pressure which may result in the destruction of the pressure transducer is indicated on the
display. This happens in three stages. In the first stage, the display shows 99.9 and flashes. If the
pressure increases, the "overload" LED lights up in the second stage. If the pressure still increases, an
alarm sounds. When the alarm sounds, the pressure gauge is at approx. 50% of the burst pressure. If
you continue to screw together or open the system, the highly sensitive pressure transducer will be
destroyed.
The WARRANTY is voided for a pressure transducer destroyed due to over- or underpressure.
Before beginning an initial measurement, you must add solvent to the measuring cell, insert
the prepared membrane, and calibrate the device (see chapter 4 and 5).
When the measuring cell is filled and the membrane is inserted, the device is in standby mode and
ready for measurement, indicated by the green standby-LED.
You can start the measurement by pressing the “START” button. This will check the zero point inter-
nally and prompt the user to inject the sample after approx. 10 seconds (indicated by the flashing IN-
JECT LED and the LED on the measuring cell).
The device should always remain switched on while the measuring cell is filled and closed, even if it is
not used for an extended period of time. The system automatically rinses the measuring cell at regular
intervals, keeping the OSMOMAT 050 ready for measurement.