Koehler KV4000, Installation, Operation And Instruction Manual

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KV4000 Kinematic Viscosity Bath
Operation and Technical Manual
KV4000-Manual
- 11 -
4 Descriptions
4.1 Instrument Controls
Figure 1. Instrument Descriptions
1. Power Switch. This switch controls the
power to the entire unit. When the power
switch is in the
ON position, the digital
temperature controller, and the stirrer are
powered on.
2. Lamp Switch. This switch controls turning
ON/OFF the lamp for illuminating the test
samples.
3. Temperature Controller. The temperature
controller regulates the bath temperature for
the test procedure. Refer to Section 4.3 for
full operational details.
4. Temperature Regulation: The heater coils
stabilize the bath temperature to desired
setting within ± 0.02°C. Running coolant
through the cooling coils allows bath to
maintain temperatures near or below
ambient.
5. Thermometer/Thermocouple Port: This
port allows for independent temperature
measurement of the bath temperature with a
thermometer or a Pt-100 RTD probe for
precise temperature measurements and
digital temperature controller calibration. If
the controller needs to be calibrated, then
please contact the Koehler technical service
department.
6. Viscometer Ports: The viscometer, once
engaged into the assembly, is placed into
the bath through the viscometer ports on top
of the instrument.
7. Bath/ Bath Stirrer: The stirrer constantly
circulates bath medium to prevent
temperature gradients and ensures
temperature stability. When cleaning and/or
servicing, please be sure to disconnect unit
power to avoid possible injury.
8. Interface : Here the user can set operation
parameters and view results on the digital
display.
4.2 Accessories for Running Tests
Glass Capillary Viscometer Tubes for
KV4000
Koehler offers a full selection of glass capillary
kinematic viscometers, which are ordered
separately from the KV4000 instrument, for
measuring kinematic viscosity of liquid products
as per ASTM D445 and related standard test
methods. All types of viscometers conform to
ASTM D445 and related methods for glass
capillary kinematic viscometers. The constant for
each individual viscometer is written on the
Certificate of Calibration, included in the
packaging.
IMPORTANT: It is recommended when using a
new viscometer for the first time to run a test
with suitable standard. Different locations may
result in a slightly different constant.
Cannon®-Fenske Routine Viscometers
The Cannon
®
-Fenske Routine viscometer is a
rugged and inexpensive viscometer that works
well if the sample is transparent or translucent.

For kinematic viscosity of transparent liquids
up to 20,000cSt.

Requires a sample of approximately 7mL.