K2269X Low Temperature Pressure Viscometer
Operation and Instruction Manual
K2269X-Manual
-
13-
NOTE:
Dependent on the equilibrium
pressure obtained, it may be necessary to
switch the pressure gauge to a smaller range
for a more accurate reading
8.
Press the Gear Switch
(Figure 4, Item 15)
to
simulate the 64-tooth gear speed.
9.
Observe the pressure once again until
equilibrium
is
established.
Record
the
pressure.
10.
Relieve the pressure to the grease cylinder by
opening the Left-Hand Needle Valve
(Figure
3, Item 8)
and closing the Right-Hand Needle
Valve
(Figure 3, Item 10)
.
11.
Replace the No. 1 capillary with subsequent
ones, No. 2 thru No. 8, and repeat this
procedure until tests have been run with all
capillaries at both flow rates.
NOTE:
With some soft or hard greases,
it cannot be practical to use all of the
capillaries.
NOTE:
It may be necessary to refill the
cylinder with fresh grease when all 16
determinations are to be made
12.
Calculate the apparent viscosity using the
formulas given in the ASTM D1092 test
method.
6 Maintenance
WARNING:
Disconnect power to the unit
before servicing to avoid exposure to high
voltages and/or temperatures which may result in
personal injury or death. If you have any questions
about maintaining your equipment, then please do
not hesitate to contact the Koehler technical
service department.
6.1 Routine Maintenance
The K2269X Low Temperature Pressure
Viscometer requires little routine maintenance to
provide many years of continuous service.
However, over the course of time, some
instrument parts may need to be replaced. When
ordering replacement part(s), please provide the
model number, serial number, and product
shipment date of your equipment so that we can
ensure you will receive the proper replacement
part(s).
6.2 Instrument Cleaning
To clean the instrument’s exterior, which
includes all painted surfaces, either a solution
of soap and water or laboratory grade
detergent may be used.
Apply cleaner to clean wipe or cloth, not to the
instrument directly. Wipe surface clean.
Do Not
clean bath exterior with organic
chemicals such as Acetone, Toluene, Hexane,
etc.
For more difficult cleaning of finished surfaces,
a dilute solution or isopropanol in water may
be used.
It is not recommended that more aggressive
solvents be used on painted surfaces since
paint color will tarnish or be stripped from the
instrument.
Stainless Steel surfaces, such as the
refrigerated test chamber, may be cleaned
using a more aggressive solvent such as a
stainless steel cleaner.
