Malvern Visco 88, User Manual

Page: 14 / 74

Chapter 2 What is the Visco 88?
Page 2-4 MAN 0378

Digital display – this shows the status of the system and measurement data
for torque, speed, viscosity, shear stress, shear rate and temperature.
System status parameters are shown as follows:
ill 7722
This text may not all be shown at the same time. In the above example:
„
1 is the set of measuring system constants which is in use (ranging from 1 to
8); these are described in the following section.
„
OFF is the motor speed. This area of the display will show LO or HI when the
measurement is out of range (too low or too high, respectively).
„
OK shows, when a computer is connected, that communication with it has
been achieved.
„
Low bat. is the battery low indicator (always seen temporarily at power-on).
The labels for viscosity, shear rate, shear stress, torque, temperature, rotational
speed and torque are displayed as shown below:
ill 7723
Only one of these parameters (modes) is shown at any time. Step through the
modes by pressing the
FUNCTION
button repeatedly. The large number in the
display shows the value of the parameter:
„
η (Pas) – viscosity.
„
(1/s) – shear rate. The 1/s units are represented as s
-1
in this manual.
„
τ
(Pa) – shear stress.
„
T (°C) – temperature.
„
f (Hz) – rotational speed.
„
M (mNm) – torque.
Instrument rear
On the back of the instrument the only feature is the lift-up flap which protects the
connectors (described below in the
Connections
section).
OFF
1
Low bat. OK
η
(Pas) f (Hz)
γ
(1/s)
τ
(Pa) M (mNm)
T (°C)
0.78
.
γ.