Starting The Viscosity Measuring Unit Viscoclock; Reading The Flow Time; Turning The Viscosity Measuring Unit Viscoclock Off - Xylem Sl Analytics ViscoClock Mode D'emploi

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3.8 Starting the Viscosity Measuring Unit ViscoClock

Remove the adapter (21) from the manual pump; considering that the measurement liquid will immediately
start flowing down, the <START> key (15) has to be pressed immediately. Thus
the display will be set to zero.
the membrane rod (16) will be unlocked and the filling tube released (1) (applies only to Ubbelohde
viscometers).
the measurement is triggered.
Fig. 9

3.9 Reading the flow time

The Viscosity Measuring Unit ViscoClock takes the time as soon as the meniscus of the measurement
liquid flows through the lower measurement mark (7).
• Read the flow time in terms of seconds on the display (14), if a computer (PC) or printer is connected,
you can furthermore document the measurement value,
The displayed measurement value remains on the display until
- the start key (15) is pressed again or
- the power supply is interrupted,
Fig. 10

3.10 Turning the Viscosity Measuring Unit ViscoClock off

• You turn the Viscosity Measuring Unit ViscoClock off by unplugging the power supply (20) from the
mains socket.
Initial operation
NOTE
Do not touch the Viscosity Measuring Unit ViscoClock dur-
ing measurement since the shock may cause erroneous
measurements!
When the meniscus of the measurement liquid flows
• through the upper measurement mark (8), the time
measurement starts, and when it flows
• through the lower measurement mark (7), the time
measurement ends.
NOTE
The flow time is evaluated according to → chapter
3.22, 3.12, operating instructions for SI Analytics
GmbH viscometers, and if required taking into ac-
count the tables of the Hagenbach corrections.
CAUTION
According to DIN, the next measurement may not be
started until the capillaries are drained off. Otherwise
there is a danger of formation of bubbles, hence of
erroneous measurements!