K2269X Low Temperature Pressure Viscometer
Operation and Instruction Manual
K2269X-Manual
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6-
build-up of the system and rupturing of the
over-pressure emergency valve. Always make
sure opposing valve is in the open position
prior to closing a valve.
9. Refrigerated Chamber Lid.
Keep lid in
closed position to maintain temperature
uniformity
of the refrigerated chamber.
Remove lid when inserting and removing the
grease cylinder.
10. Right-Hand Needle Valve Knob:
Part of dual
valve
hydraulic
system
designed
for
continuous flow of hydraulic fluid. Turning
Right-Hand knob counter-clockwise opens
valve and allows for fluid flow to pressurize the
grease cylinder. Closing Right-Hand valve by
turning knob clockwise closes the path to the
grease cylinder and forces the fluid to flow
through the continuous system loop.
NOTE:
The two valve system (Left and Right-
hand Knobs) must be used in opposition.
When one valve is open, the other must be
closed, and vice-versa.
WARNING:
Never close both valves at
the same time as this will result in pressure
build-up of the system and rupturing of the
over-pressure emergency valve. Always make
sure opposing valve is in the open position
prior to closing a valve.
11. Hydraulic System Connection Port:
For
connection to hydraulic system. Quick connect
coupling allows the user to easily connect the
grease cylinder to the hydraulic system. This
port is also used as the main connection point
for the hydraulic system calibration by utilizing
the Calibration Pipe Assembly, See Figure 1,
Item G.
4.3 Control Box Descriptions
Figure 4. Instrument Descriptions_Control Box
12. Compressor Switch.
Controls power to
refrigeration system. Turning on the switch will
also power on the lamp in the receiver
chamber as well as the Chamber Temperature
Controller
(16)
and Sample Temperature
Display
(17)
.
NOTE:
When power to the compressor is
turned off, the user must wait for a period of
30 minutes prior to turning the power back on.
This is to prevent any damage to the
compressor.
13. Drive Motor / Circulating Pump Switch.
Turns on both the drive motor which powers
the hydraulic / gear pump as well as the
circulating pump which pushes refrigerant to
the hydraulic / gear pump.
NOTE:
It is not necessary to switch on the
Drive Motor / Circulating Pump until the
instrument has reached the proper test
temperature.
14. Reset Button.
The gear box cover is
equipped with a safety switch that shuts off
the Drive Motor / Circulating Pump when
opened. If the gear box cover is opened for an
extended period of time the Drive Motor /
Circulating Pump may not automatically be
switched back on when the cover is closed. In
this case, pressing the Reset Button will turn
the Drive Motor / Circulating Pump back on.
15. Gear Switch.
Allows for changing drive motor
speed to simulate flow rates attained by 40-
tooth gear and 64-tooth gear as per ASTM
D1092.
