K2269X Low Temperature Pressure Viscometer
Operation and Instruction Manual
K2269X-Manual
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7-
16. Chamber Temperature Controller.
The
temperature controller regulates the chamber
temperature for the test procedure. Set point
temperature
is
in
green
and
actual
temperature of the chamber is displayed in
red. Refer to Section 4.5 for full operational
details.
17. Sample Temperature Display.
For displaying
the sample temperature of the grease during
testing.
4.4 Gear Box and Motor Descriptions
Figure 5. Instrument Descriptions_Gear Box and Motor
18. Gear Box Cover.
Protects user from rotating
gears. Lift gear box to access gears for
removal of ice / frost build-up. When gear box
cover is lifted, drive motor will automatically
stop and gears will stop rotating. Upon closing
gear box cover, drive motor and gears should
start up automatically. In the event the system
does not restart, press the red Reset button
located on the control box, See Figure 4, Item
14.
19. Speed Reducer:
200 to 1 ratio speed reducer
is coupled to the drive motor to obtain desired
speed for gears used to power the hydraulic
pump system.
20. Variable Speed Drive Motor:
1/8-hp, 3000
rpm motor is powered on by pressing the
Drive Motor / Circulating Pump switch to the
ON
position. See Figure 4, item 13. Variable
Speed Motor is coupled to the speed reducer
and is capable of operating at two speeds
required to simulate flow rates attained by 40-
tooth gear and 64-tooth gear as per ASTM
D1092. Therefore, it is not required to
physically switch gear from 40-tooth to 64-
tooth type and vice-versa.
21. Refrigerant Circulation Piping.
Circulating
Pump located in the Refrigerated Test
Chamber pushes refrigerant through the
refrigerant circulating piping, cooling the
hydraulic fluid and gear pump, and flows back
into the Refrigerated Test Chamber.
22. Over-Pressure Valve.
In the event, the
pressure of the hydraulic system becomes too
high, the over-pressure valve will burst and
safely release the pressure inside the system.
23. Gear Pump.
Pushes hydraulic fluid through
the system. Gear pump is insulated to prevent
loss of cooling from the refrigeration system.
The gear pump must be as close to thermal
equilibrium with the refrigeration system as
possible to properly pump the hydraulic fluid
throughout the system.
24. Gear.
Dual gear set is fixed to the speed
reducer and gear pump to provide the proper
flow rate of the hydraulic fluid through the
system. It is not necessary to remove the gear
at any time. The two fluid flow rates required
by the ASTM test method can be obtained by
flipping the Gear Switch on the control box.
See Figure 4, Item 15.
4.5 Temperature Controller Descriptions
Figure 4. Temperature Controller
