Koehler SV4000 Guide

Operation and Instruction Manual
REV B
Koehler Instrument Company, Inc.
1595 Sycamore Avenue • Bohemia, New York 11716-1796 • USA
Toll Free: 1-800-878-9070 (US only) • Tel: [phone] • Fax: [phone]
http://www.koehlerinstrument.com • e-mail: [e-mail]
Petroleum Testing & Analysis Instrumentation • Custom Design & Manufacturing
SV4000
Saybolt Viscosity Bath
for Automatic Viscosity Timing

CERTIFICATE OF CONFORMANCE
Constant Temperature Saybolt Viscosity Bath, SV4000
K214X4
This certificate verifies that part number K214X4, Constant Temperature Saybolt
Viscosity Bath, was manufactured in conformance with the applicable standards set
forth in this certification.
Specifications: ASTM D88
ASTM D244
ASTM E102
AASHTO T72
FTM 791-304
This unit is tested before it leaves the factory, to ensure total functionality and
compliance to the above specifications and ASTM standards. Test and inspection
records are on file for verification.
Jesse Kelly
Application Engineer
Koehler Instrument Company

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
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Table of Contents
1. Introduction....................................................................................................................2
1.1 Koehler's Commitment to Our Customers .............................................................................................2
1.2 Recommended Resources and Publications......................................................................................... 2
1.3 Instrument Specifications....................................................................................................................... 3
1.4 Software Specifications..........................................................................................................................3
2. Safety Information and Warnings.................................................................................3
3. Getting Started...............................................................................................................3
3.1 Packing List............................................................................................................................................ 3
3.2 Additional Accessories Required for Performing Tests ......................................................................... 4
3.3 Unpacking .............................................................................................................................................. 4
3.4 Setup......................................................................................................................................................4
4. Descriptions ..................................................................................................................5
4.1 Instrument Descriptions .........................................................................................................................5
4.2 Digital Temperature Control................................................................................................................... 6
4.3 Preparation of Apparatus.......................................................................................................................7
5. Operation .......................................................................................................................8
6. Maintenance...................................................................................................................8
6.1 Routine Maintenance.............................................................................................................................9
6.2 Bath Maintenance..................................................................................................................................9
6.3 Spare Parts ............................................................................................................................................9
7. Wiring Diagrams ..........................................................................................................10
7.1 K21414 (115V) Model..........................................................................................................................10
7.2 K21424 (220-240V) Model...................................................................................................................11
8. Flow Chart for K21404 (Timing Sensor 115V)............................................................12
9. Troubleshooting...........................................................................................................13
10.Service..........................................................................................................................13
11.Storage .........................................................................................................................13
12.Warranty .......................................................................................................................13
13.Returned Goods Policy ...............................................................................................13
Notes..................................................................................................................................14
Notes..................................................................................................................................15

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
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1. Introduction
The Koehler SV4000 Saybolt Viscosity Bath
for Automatic Viscosity Timing is the latest
design for determining viscosity using saybolt
viscometer tubes and orifices equipped with
automatic timing sensors. The bath can be set
for operating temperatures from ambient to
240°C (464°F). It is equipped with an internal
cooling coil that when connected to an external
cooling source, can be utilized for rapid cooling
of the bath medium and for operation at near-
ambient temperatures.
This instrument determines the time required
for 60mL of sample to flow through a calibrated
orifice under precisely controlled conditions.
Saybolt Universal Seconds (SUS) is the
standard measurement for lubricants, insulating
oils, and lighter fuel grades, and Saybolt Furol
Seconds (SFS) is used for heavier oils and
bitumens. The instrument conforms to the
ASTM D88 test method and related test
specifications.
This manual provides important information
regarding safety, technical reference, installation
requirements, operating condition specifications,
user facility resource requirements, and
operating instructions for the Saybolt Viscosity
Bath. This manual should also be used in
conjunction with applicable published laboratory
procedures. Information on these procedures is
given in section 1.2.
1.1 Koehler's Commitment to Our
Customers
Providing quality testing instrumentation and
technical support services for research and
testing laboratories has been our specialty for
more than 50 years. At Koehler, the primary
focus of our business is to provide you with the
full support of your laboratory testing needs. Our
products are backed by our staff of technically
knowledgeable, trained specialists who are
experienced in both petroleum products testing
and instrument service to better understand your
requirements and provide you with the best
solutions. You can depend on Koehler for a full
range of accurate and reliable instrumentation
as well as support for your laboratory testing
programs. Please do not hesitate to contact us
at any time with your inquiries about equipment,
tests, or technical support.
Toll Free: + 1 800 878 9070 (US only)
Tel: [phone]
Fax: [phone]
Email: [e-mail]
http://www.koehlerinstrument.com
1.2 Recommended Resources and
Publications
1. American Society for Testing and Materials
(ASTM)
100 Barr Harbor Drive West Conshohocken,
Pennsylvania 19428- 2959, USA
Tel: [phone]
Fax: [phone]
http://www.astm.org
E-mail: [e-mail]
ASTM Publication:
ASTM D88: Standard Test Method for
Saybolt Viscosity
ASTM D244: Standard Test Method for
Emulsified Asphalts
ASTM E102: Standard Test Method for
Saybolt Furol Viscosity of Bituminous
Materials at High Temperatures
2. American Association of State Highway and
Transportation Officials (AASHTO)
444 North Capitol Street N.W., Suite 249
Washington, DC 20001
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
AASHTO Publication:
AASHTO T72: Standard Method of Test for
Saybolt Viscosity
3. Federal Test Method (FTM)
FTM Publication:
FTM 791-304

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
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1.3 Instrument Specifications
Models:
K21414
K21424
Electrical
Requirements:
115V 60Hz 12.3A
220-240 V 50/60Hz 6.4A
Temperature
Range:
Ambient to 240°C (464°F)
Temperature
Accuracy:
+/- 0.03°C (0.05°F)
Capacity:
Four viscometer tubes
Bath Capacity:
5 gal (19L)
Dimensions:
29x25x33 in.
(74 x 63.5 x 84cm)
Net Weight:
65 lbs (30 kg)
Gross Weight:
82 lbs (37kg)
1.4 Software Specifications
PC System
Requirements:
Intel® Pentium II
Processor or similar
(minimum)
Operating System:
Windows® 98 SE,
2000, NT, XP
Memory
Requirements:
64Mb RAM (128Mb
RAM recommended)
Disk Space:
30Mb free space
(minimum)
Communication
Ports:
One RS 232 port for
temperature controller
Other Software:
Microsoft ® Excel (97 or
above)
2. Safety Information and Warnings
Safety Considerations. The use of this
equipment may involve hazardous materials and
operations. This manual does not purport to
address all of the safety problems associated
with the use of this equipment. It is the
responsibility of any user of this equipment to
investigate, research, and establish appropriate
safety and health practices and determine the
applicability of regulatory limitations prior to use.
Equipment Modifications and Replacement
Parts. Any modification or alteration of this
equipment from that of factory specifications is
not recommended because it voids the
manufacturer warranty, product safety,
performance specifications, and/or certifications
whether specified or implied, and may result in
personal injury and/or property loss.
Replacement parts must be O.E.M. exact
replacement equipment. Repairs should only be
carried out by authorized personnel.
Unit Design. This equipment is specifically
designed for use in accordance with the
applicable standard test methods listed in
section 1.2 of this manual. The use of this
equipment in accordance with any other test
procedures, or for any other purpose, is not
recommended and may be extremely
hazardous.
Chemical Reagents Information. Chemicals
and reagents used in performing the test may
exhibit potential hazards. Any user must be
familiarized with the possible dangers before
use. We also recommend consulting the
Material Data and Safety Sheet (MSDS) on each
chemical reagent for additional information.
MSDS information can be easily located on the
internet at http://siri.uvm.edu or
http://www.sigma-aldrich.com. Dispose of all
chemicals according to local and national
regulations.
3. Getting Started
The instructions for preparing the equipment
assume that the user is aware of the contents of
this document, which lists the warranty
conditions and important precautions.
3.1 Packing List
SV4000 Saybolt Viscosity Bath
(K21414/K21424)
Automatic Saybolt Viscosity Timing Sensor,
K21404:115V 60Hz
K21494:220-240V 50/60Hz
NOTE: Each port can accommodate one sensor for
automatic timing operation on SV4000 Saybolt Viscosity
Bath. Number of Timing Sensors equipped based on
original sales order.
Saybolt Viscosity Software V 1.4 CD
NOTE: Must be purchased separately
K22011 Thermometer Supports (4)
K22060 Oil Strainer
K22050 Tube Nut (Socket) Wrench

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K214-7 Port Closures (2)
K22070 Cleaning Plunger
K214-0-29 Chained Corks (4)
K22090 Withdrawal Tube
K22030 Orifice Wrench
K214-0-27 Port Covers (4)
K21410-0-10 Draft Shield (2)
3.2 Additional Accessories Required
for Performing Tests
Part Number
Description
355-001-002
Silicone heat transfer fluid-
1 gallon container.
Order quantity 5 per bath
355-001-004
Silicone heat transfer fluid-
5 gallon container.
Order quantity 1 per bath
3.3 Unpacking
Carefully unpack and place the instrument and
accessories in a secure location. Ensure that all
parts listed on the packing list are present.
Inspect the unit and all accessories for damage.
If any damage is found, keep all packing
materials and immediately report the damage to
the carrier. We will assist you with your claim, if
requested. When submitting a claim for shipping
damage, request that the carrier inspect the
shipping container and equipment. Do not return
goods to Koehler without written authorization.
3.4 Setup
Equipment Placement. Place the instrument on
a firm, level table in an area with adequate
ventilation or in a hood. The unit may be leveled
by making minor turning adjustments to the feet
located at the base of the unit. Please note that
Koehler does not supply a level with this
equipment.
Ventilation. A fume hood or exhaust system is
required when operating the unit. Flammable
vapors and/or steam are generated during
operation and must not be permitted to
accumulate. A canopy-style hood may be used if
the height from the top of the unit to the canopy
is 5 feet or less. The exhaust blower should
have a rating of 1000 C.F.M. or greater. The unit
location should also be prevented from drafts.
Power. Connect the line cords to properly fused
and grounded receptacles with the correct
voltage as indicated in section 1.3 or on the
back of the unit.
WARNING: For safety, disconnect the power
when performing any maintenance and/or
cleaning. Do NOT turn the power on unless the
bath is filled with the proper medium; otherwise
damage may occur to the unit and the warranty
will be void.
Auto Timer Feature. For the auto timer feature,
connect the liquid level sensor to the neck of the
receiver flask. The arrows on the sensor should
align with the 60mL fill line on the flask. Use
standard plastic ties to secure the sensor to the
flask. The pin cord to control the auto timer
should be attached to the back of the unit. See
figure 1 below. Additional auto timer boxes
should be connected in series to the previous
auto timer unit.
Figure 1: Optical Sensor Pin Cord Connection

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4. Descriptions
4.1 Instrument Descriptions
Figure 14: Instrument Descriptions_Front
1. Lamp: Operates the viewing lamp.
2. Digital Temperature Controller: See
Section 4.2 for full operation details.
3. Line Switch: Controls power for all the
components of the instrument.
4. Receiving Flask: Place under Saybolt
Orifice to collect test sample. 60mL
graduation mark on flask neck indicates end
of test. Align optical sensor with graduation
mark to automatic stop timing after 60mL of
sample is received.
5. Viscometer Port: Bath capacity allows for
up to four viscometer tubes to be installed
and run tests simultaneously.
6. Motor: Constantly stirs medium for bath
temperature uniformity.
7. Temperature Probe: Stainless Steel RTD
probe for temperature measurement of bath.
Communicates directly with temperature
controller.
8. Thermometer Port: Additional opening in
bath for temperature verification and
calibration using a certified thermometer or
temperature simulator.
9. Automatic Timing Display: Displays time
in seconds with an accuracy of 0.1s. Time
starts when Sensor on switch is pressed and
stops when sample passes optical sensor
mark on the receiving flask.
10. Reset Button: Resets time to display zero.
Timer will then be ready to perform another
test.
11. Timer ON/OFF Switch: Pressing this button
to the ON position will automatically open
the orifice valve and start the timer. Upon
completion of the test, pressing the switch to
the OFF position closes the valve so the
user can load a subsequent test sample in
the viscometer.
Figure 15: Instrument Descriptions_Back
12. Line Cord: Connect the line cord to a
properly fused and grounded receptacle with
the correct voltage as indicated in section
1.3 or on the serial plate on the back of the
unit.
13. RS232 Port: For connection to external PC
for data acquisition.
14. Motor Cord: Connects motor to control
panel. Motor powers on when the line switch
to the entire unit is turned on.

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
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15. RTD Temperature Probe Port: Connects
RTD Temperature probe to control panel.
Temperature probe plug is connected to this
port to ensure communication between the
temperature controller and the probe.
16. Optical Sensor Pin Cord: Connect cord to
port to provide power to the optical sensor
assemblies on the front of the unit.
17. Drain Valve: For draining the medium from
the viscometer bath to change or clean.
18. Cooling Coil Inlet: Connect to Cold Water
Supply or Refrigerated Recirculator for near
and sub-ambient testing or rapid cooling of
bath medium.
19. Overflow Port: Provides isolation point for
bath medium to overflow in the event it rises
above bath limit.
20. Cooling Coil Outlet: Connect to Laboratory
sink drain or refrigerated recirculator inlet.
4.2 Digital Temperature Control
Figure 4. Temperature Controller
1. Process Temperature Display. The
upper red LED display shows the
process temperature as read from the
RTD probe.
2. Set Point Temperature Display. The
lower green LED display shows the set
point temperature of the controller.
3. Programming Key. Permits scrolling
through controller menu parameters.
One Level Forward
4. Down Key. Used to decrease the set
point temperature and to decrease or
change parameter values when
programming the temperature controller.
5. Up Key. Used to increase the set point
temperature and to increase or change
parameter values when programming
the temperature controller.
6. Exit / Function Key. This key is used to
exit or leave a level. One level backward
IMPORTANT NOTE: The digital
temperature controller for the unit
comes pre-programmed from the
Koehler factory. Please do NOT attempt
to re-program the digital temperature
controller as this will void the product
warranty. If assistance is required,
please do not hesitate to contact the
Koehler technical service department.
Setting the Temperature. Set the desired
operating temperature by adjusting the set
point with the up and down keys. The set
point will be displayed in the lower green Set
Point LED display and the actual
temperature will be displayed in the upper
red Process LED display. Please allow the
instrument to fully equilibrate before
proceeding with any testing.
Temperature Calibration. This routine allows
the digital temperature controller to be
calibrated to a certified thermometer..
a. Use a certified calibrated measuring
device to acquire the temperature.
Calculate the difference between the
measuring device and the Process
value displayed on the controller.
b. Press the program key two times until
PCt is displayed in the lower green LED
display. Press the DOWN key. CAL will
display on the lower green display. If
there is a value observed in the upper

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
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red LED display, add it to the calculated
difference obtained in the previous step.
This is the offset value.
c. Press the Program Key. The lower
green display will flash. Use the up or
down keys to adjust to the new
calibration offset value on the upper red
display calculated in the previous step.
When the value has been entered, the
controller will automatically store the
value. The lower green display will stop
flashing. If further adjustments are
necessary, press the Program Key
again. Resume regular operations by
pressing the Exit / Function key two
times. Verify if the new calibration is
correct by observing the upper red
display and comparing the value with
the calibrated reference device.
Auto Tune. This routine allows the digital
temperature control to learn the heating
parameters needed for any particular set
point temperature. This operation should be
done when installing a new unit, after
replacing or changing the bath medium type,
or utilizing a different temperature set point
20% different from the previously used set
point temperature.
a. Set the operating temperature to the
desired setting.
b. Press the up and down arrow buttons
simultaneously for about 5 seconds.
When Auto Tune is active, the lower
green LED display will blink TUNE. Auto
Tune will automatically toggle off when
the set point temperature is reached.
Auto tune can be terminated by pressing
the up & down buttons simultaneously
again.
4.3 Preparation of Apparatus
(According to ASTM D88):
1. Use a Universal orifice or tip for lubricants
and distillates with efflux times greater than
32 seconds to give the desired accuracy.
Liquids with efflux times greater than 1000
seconds are not conveniently tested with
this orifice.
2. Use a Furol orifice or tip for residual
materials with efflux times greater than 25
seconds to give the desired accuracy. The
Saybolt Furol viscosity is approximately one
tenth the Saybolt Universal viscosity and is
recommended for characterization of
petroleum products such as fuel oils and
residual materials having Saybolt Universal
viscosities greater than 1000 seconds.
3. Clean the viscometer thoroughly with an
appropriate solvent of low toxicity; then
remove all solvent from the viscometer and
its gallery. Clean the receiving flask in the
same manner.
NOTE: The plunger commonly supplied with
the viscometer should never be used for
cleaning; its use might damage the overflow
rim and walls of the viscometer.
4. Set up the viscometer and bath in an area
where they will not be exposed to drafts or
rapid changes in air temperature, and dust
or vapors that might contaminate a sample.
5. Place the receiving flask beneath the
viscometer so that the graduation mark on
the flask is from 100-130 mm (4 to 5 inches)
below the bottom of the viscometer tube and
so that the stream of oil will jus strike the
neck of the flask.
6. Fill the bath to at least 6 mm (1/4 inch)
above the overflow rim of the viscometer
with an appropriate bath medium selected.
7. Provide adequate stirring and thermal
control for the bath so that the temperature
of a test sample in the viscometer will not
vary more than +/- 0.03°C (+/- 0.05°F) after
reaching the selected test temperature.
8. Do not make viscosity measurements at
temperatures below the dew point of the
room’s atmosphere.
9. For calibration and referee tests, keep the
room temperature between 20 and 30°C (68
and 86°F) and record the actual
temperature. However room temperatures
up to 38°C (100°F) will not introduce errors
in excess of 1%.

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
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5. Operation
1. Remove the two binding post knobs on top
of the bath. Remove the plug from behind
the bath which is connected to the terminal
box. Gently remove the cover, making sure
not to damage the heaters or stirrer shaft
and place it in a safe location.
2. Choose an appropriate viscometer tube.
Remove the nut provided from the
viscometer tube to be used. Install an orifice
into the bottom of the viscometer tube and
tighten with the provided orifice wrench.
3. Insert a viscometer tube into one of the
holes inside the bath. Be sure to place the
lead gaskets between the top and bottom
surfaces of the tank. Screw on the nut from
underneath the tank and tighten with the
provided socket wrench. Up to four
viscometer tubes may be used
NOTE: If only two viscometer tubes are to
be used, close off the two remaining holes
with the two provided port closures and
tighten with the socket wrench. Be sure to
place the Teflon gaskets between the top
and the bottom surfaces of the tank.
4. Fill the bath with oil (recommended by the
test method) 1.5” from the top of the bath.
Never turn the power ON unless there is
bath medium present otherwise the heaters
will burn out which will automatically void the
warranty. Do not let any “bath” oil fall into
the viscometer tubes.
5. Reinstall the cover on top of the bath into
the screws and replace the two binding
posts.
6. Place the port covers over the port holes.
7. Connect the plug from the terminal box into
the back of the unit.
8. Install the RTD probe into the holder located
on the right side on top of the bath.
9. Install a calibrated thermometer into the
holder (cork) located in the center at the top
of the bath.
10. Connect tubing from the overflow outlet
(middle valve) located in the rear of the unit
to a waste receptacle in case of oil
expansion.
11. Connect tubing to the cooling coil valves,
located in the back of the instrument, to a
suitable cold water supply (only if needed).
12. Turn the Line and Light switches to ON.
13. To set to the desired temperature, use the
UP/DOWN keys to set the temperature.
After a few seconds, the microprocessor will
start the heater.
14. Place the chained corks into the bottom of
the viscometer tubes.
15. Place the 60mL Pyrex™receiving flask
underneath the bath in the spaces provided,
making sure the graduation marks on the
flasks are visible.
16. When the test temperature is stabilized,
proceed to test in accordance with any of
the test methods specified in Section 1.2.
17. Reset the timer on the auto timer using the
red reset button.
18. Press the start/stop button on the auto timer
to start the test. When the button is
switched to start, the sample will flow
through the orifice and the timer will begin
timing. The timer will automatically stop
when 60mL of the sample has been
collected in the receiver flask.
19. Allow the entire contents of the reservoir to
empty before switching of the start/stop
button.
20. Record the value in seconds of the test
results. Then, prepare the viscometer for
the next test.
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,
please do not hesitate to contact the Koehler
technical service department.

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Operation and Instruction Manual
SV4000-Manual -9-
6.1 Routine Maintenance
The SV4000 Saybolt Viscometer Bath 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 Bath Maintenance
Replace the oil in the bath when the color
turns light to medium brown to avoid unwanted
oil expansion. To drain the oil from the unit,
place a sufficient waste receptacle under the
drain located in the back of the unit. In the open
position, the draincock will be parallel to the
valve. When the bath is finished draining, close
the draincock. In the closed position, the
draincock will be perpendicular to the valve.
6.3 Spare Parts
Part Number
Description
K22060
Oil Strainer
K214-0-29
Cork and Chain Assembly
K214-0-31
Port Closure
K22011
Thermometer Holder
K215-3
Teflon Gasket
K215-6
#5 Thermometer/Probe Holder
K23700-03013A
Motor, 115V 60Hz†
K23700-03014A
Motor, 230V, 50/60Hz‡
K21410-0-15
Heater, 1200W, 115V†
K21420-0-15
Heater, 1200W, 230V‡
275-103-044
Temperature Controller,100-240V
279-115-002
Fluorescent Lamp
265-600-001
RTD Probe, 0.25’’ x 4’’, 600F
K70519
RTD Probe Assembly
Note: † For 115V only
‡ For 220-240V only

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7. Wiring Diagrams
7.1 K21414 (115V) Model

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7.2 K21424 (220-240V) Model

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8. Flow Chart for K21404 (Timing Sensor 115V)

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9. Troubleshooting
WARNING: Troubleshooting procedures involve
working with high voltages and/or temperatures
which may result in personal injury or death, and
should only be performed by trained personnel.
Please do not hesitate to contact Koehler for
assistance.
10. Service
Under normal operating conditions and with
routine maintenance, the SV4000 Saybolt
Viscometer Bath does not require service. Any
service problem can be quickly resolved by
contacting Koehler’s technical service
department either by letter, phone, fax, or email.
In order to assure the fastest possible service,
please provide us with the following information.
Model Number:
Serial Number:
Date of Shipment:
11. Storage
This laboratory test instrument is equipped
with electrical components. Storage facilities
should be consistent with an indoor laboratory
environment. This testing equipment should not
be subjected to extremes of temperature and/or
moisture. This equipment was shipped from the
factory in a corrugated cardboard container. If
long term storage is anticipated, re-packing the
instrument in a water-resistant container is
recommended to ensure equipment safety and
longevity.
12. Warranty
We, at Koehler, would like to thank you for
your equipment purchase, which is protected by
the following warranty. If within one (1) year from
the date of receipt, but no longer than fifteen
(15) months from the date of shipment, Koehler
equipment fails to perform properly because of
defects in materials or workmanship, Koehler
Instrument Company, Inc. will repair or, at its
sole discretion, replace the equipment without
charge F.O.B. its plant, provided the equipment
has been properly installed, operated, and
maintained. Koehler Instrument Company must
be advised in writing of the malfunction and
authorize the return of the product to the factory.
The sole responsibility of Koehler Instrument
Company and the purchaser’s exclusive remedy
for any claim arising out of the purchase of any
product is the repair or replacement of the
product. In no event shall the cost of the
purchaser’s remedy exceed the purchase price,
nor shall Koehler Instrument Company be liable
for any special, indirect, incidental,
consequential, or exemplary damages.
KOEHLER INSTRUMENT COMPANY, INC.
DISCLAIMS ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING ANY
IMPLIED WARRANTIES OF FITNESS FOR A
PARTICULAR PURPOSE. Please save the
shipping carton in the event the equipment
needs to be returned to the factory for warranty
repair. If the carton is discarded, it will be the
purchaser’s responsibility to provide an
appropriate shipping carton.
13. Returned Goods Policy
To return products for credit or replacement,
please contact Koehler Customer Service with
your purchase order number, our packing
list/invoice number, the item(s) to be returned
and the reason for the return. You will be issued
a Returned Authorization (RA) number, which
must be prominently displayed on the shipping
container when you return the material to our
plant. Shipping containers without an RA
number prominently displayed will be returned to
the sender. Goods must be returned freight
prepaid. Returns will be subject to a restocking
charge, the application of which will depend
upon the circumstances necessitating the return.
Some returns cannot be authorized, including
certain products purchased from outside
vendors for the convenience of the customer,
products manufactured on special order,
products shipped from the factory past ninety
(90) days, and products which have been used
or modified in such a way that they cannot be
returned to stock for future sale.

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
SV4000-Manual -14-
Notes

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
SV4000-Manual -15-
Notes

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Operation and Instruction Manual
SV4000-Manual -16-
Notes