What is the Visco 88?
Chapter 2
Visco 88
Page 2-3
The main components are:
Stand
– keeps the instrument stable. The instrument does not have to be used
while placed in the stand. The viscometer can be held in the hand and the
measuring system just placed in the sample to be measured.
Clamp
– this is used to adjust the height of the instrument relative to the base.
Tighten the lock nuts on this to keep the instrument secure.
Base plate
– this weighted plate keeps the stand in place. A light plastic cover
plate fits over this to retain spilt samples for easy cleaning.
Main instrument
– this is the viscometer itself. All the remaining compo-
nents in this list are parts of this.
Control buttons
– these four buttons are:
START
– starts/stops the motor. An LED above the button comes on
when the motor starts.
CAL
(Calibration button) – for residual torque adjustment.
FUNCTION
– switches between display modes on the LCD screen
.
When this is pressed the desired parameter can be read on the display. (The
residual torque adjustment position,
Cal
, can also be reached by holding
down this button; see
Chapter 4
.)
ON/OFF
– turns power to the instrument on/off. If the power is switched
off the display will be blank. When it’s switched on the display initially
shows
OFF
, indicating that the motor is not running.
Note
The control buttons (except
ON
/
OFF)
and the
SPEED
and
SYSTEM
switches are disabled when a computer is connected for software opera-
tion. Full details of how to use the software are given in
Chapter 5
.
SPEED switch
– used to select a rotational speed, one of eight settings
between 20 and 1000 rpm. When the Bohlin software is in use, more speed set-
tings within this range are available.
SYSTEM switch
– used to select the measuring system; see
Chapter 4
.
Chuck
– holds the upper measuring system. To insert a system, push its shaft
fully into position in the chuck. To remove a measurement system, push the
chuck itself upwards while holding the measurement system as it comes loose.
Temperature sensor
– this PT100 sensor enables direct temperature meas-
urement of the sample for cup and bob measurements. This is useful as viscos-
ity is a function of temperature.
i
Summary of Contents for Visco 88
Page 1: ...Visco 88 User Manual MAN0378 Issue 1 0 October 2006...
Page 6: ...Table of Contents Visco 88 Page iv MAN 0378...
Page 7: ...Part 1 Operator s Guide...
Page 8: ......
Page 22: ...Chapter 2 What is the Visco 88 Page 2 12 MAN 0378...
Page 34: ...Chapter 3 Making a measurement Page 3 12 MAN 0378...
Page 40: ...Chapter 4 Other tasks Page 4 6 MAN 0378...
Page 54: ...Chapter 6 Maintenance and troubleshooting Page 6 6 MAN 0378...
Page 55: ...Part 2 Appendices...
Page 56: ......
Page 62: ...Appendix A Health and safety Page A 6 MAN 0378...
Page 69: ...Visco 88 Page D 1 D Regulatory statements EMC...
Page 70: ...Appendix D Regulatory statements Page D 2 MAN 0378 D...
