Koehler K30160 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
K30160, K30165, K30166
Rust Preventing Characteristics Oil Bath

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Operation and Instruction Manual
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CERTIFICATE OF CONFORMANCE
Rust Preventing Characteristics
K3016X
This certificate verifies that part number K3016X, Rust Preventing Characteristics,
was manufactured in conformance with the applicable standards set forth in this
certification.
Specifications: ASTM D665
ASTM D3603
ASTM D6158
IP 135
ISO 7120
DIN 51585
FTM 791-4011
NF T 60-151
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

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WEEE Directive Compliance Statement
Background
The goal of the WEEE Directive is to encourage design of environment-friendly products that increase reuse,
recycling and other forms of recovery to reduce waste streams and applies to listed Electronic and Electrical
Equipment (EEE) and Koehler's equipment falls broadly into Appendix 1A; Section 9 Monitoring and Control
Equipment: Measuring, weighing or adjusting appliances for household or as laboratory equipment.
Any associated non-embedded equipment such as Lighting (Saybolt Color) and PCs/Printers also fall under
WEEE. If provided with an order these ancillary items must be WEEE compliant. For these and other reasons
(printer cartridges are regionalized) the equipment must be supplied through a third party supplier in Europe.
The WEEE Directive applies to electrical and electronic equipment falling under the categories set out in Annex
IA provided that the equipment concerned is not part of another type of equipment that does not fall within the
scope of this Directive. Annex IB contains a list of products which fall under the categories set out in Annex IA.
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2003:037:0024:0038:en:PDF
We do not qualify for any of the 10 exemption categories.
http://www.dpa-system.dk/en/WEEE/Products/Exemptions
Professional use
For equipment defined for ’professional use’ local authorities have no role to play. Producers and importers are
basically responsible for collection of WEEE recyclables from the professional user and for subsequent
management. A separate statement is given cataloging the items that require separation from the equipment
along with basic information on subsequent processing or recycling prior to disposal of the equipment.
http://www.dpa-system.dk/en/WEEE/Products/Private-or-professional-use
Responsibility for Registration and Annual Reporting:
Koehler will not sell directly to end users in the EU and so has no responsibility to register within each EU state
and to make annual reports. Koehler declares that this responsibility is born by the importer who is the first
level of the distribution chain and is subject to producer responsibility. We will communicate this in writing to
our distributor/importers in the EU stating they are responsible to satisfy WEEE registration and reporting
requirements in the EU states where they conduct sales activities.
It is illegal to market electrical and electronic equipment covered by producer responsibility without being
registered.
http://www.dpa-system.dk/en/WEEE/Producers/Whoissubjecttoproducerresponsibility
Product Design
Koehler's designs allow for complete disassembly to a modular level which usually allows for standard
recycling. A qualified refrigeration system technician must be consulted when disassembling and de-
commissioning any equipment with refrigeration systems.
Koehler's scientific testing equipment is robustly designed to function over a long service life and are typically
repaired many times over the course of years rather than being replaced. We believe that re-use and
refurbishment is the very best form of re-cycling.
All batteries must be readily removable not soldered in place.
Recycling instructions
In the event that replacement becomes necessary, we will include instructions, particularized to each
instrument that informs the customer of their recycling responsibilities and giving them guidance in doing this.
All Koehler equipment has been placed on the market since 13th August 2005 and so Koehler is defined as a
"new WEEE producer". As such we must provide information on refurbishment, treatment, and re-use.

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Our instrument manual will include this compliance statement and indicate that any collection of materials will
be handled by their authorized distributor. In the event that the distributor is unreachable or is no longer a
distributor for Koehler Instrument, Co., other arrangements may be made including accepting the materials
directly.
Recycling is free of charge. Shipping is the responsibility of the end users. Whether shipping to a distributor or
to Koehler directly, safe, properly declared, and labeled packaging and shipping expenses are the sole
responsibility of the end user.
WEEE Marking
Since Koehler products are subject to the WEEE Directive we must display the WEEE symbol shown above in
accordance with European Standard EN 50419 on the equipment. It must be indelible, at least 5mm in height,
and clearly legible. If the equipment is too small the mark must be in the product literature, guarantee
certificate, or on the packaging. Rules on marking are established in section 49 of the WEEE Order.
Koehler Instrument Company, Inc.
c/o RECYCLING
1595 Sycamore, Ave.
Bohemia, NY 11716
As a minimum the following substances, preparations and components have to be removed from any
separately collected WEEE:
- Mercury containing components, such as switches or backlighting lamps (compact fluorescent lamps, CFL),
- Batteries
- Printed circuit boards if the surface of the printed circuit board is greater than 10 square centimeters (about 4
sq in.),
- Toner cartridges, liquid and pasty, as well as color toner,
- Chlorofluorocarbons (CFC), hydrochlorofluorocarbons (HCFC) or hydrofluorocarbons (HFC), hydrocarbons
(HC)
- Liquid crystal displays (together with their casing where appropriate) of a surface greater than 100 square
centimeters and all those back-lighted with gas discharge lamps,
- External electric cables
- Components containing refractory ceramic fibers as described in Commission Directive 97/69/EC of 5
December 1997 adapting to technical progress Council Directive 67/548/EEC relating to the classification,
packaging and labeling of dangerous substances (2),
- Electrolyte capacitors containing substances of concern (height > 25 mm, diameter > 25 mm or
proportionately similar volume)
2. The following components of WEEE that is separately collected have to be treated as indicated:
- Equipment containing gases that are ozone depleting or have a global warming potential (GWP) above 15,
such as those contained in foams and refrigeration circuits: the gases must be properly extracted and properly
treated. Ozone-depleting gases must be treated in accordance with Regulation (EC) No 2037/2000 of the
European Parliament and of the Council of 29 June 2000 on substances that deplete the ozone layer (4).

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Table of Contents
1Introduction..............................................................................................................9
1.1 Koehler’s Commitment to Our Customers .......................................................................................9
1.2 Recommended Publications ............................................................................................................9
1.3 Electrical Requirements...................................................................................................................9
2Safety Information and Warnings.........................................................................10
3Getting Started....................................................................................................... 11
3.1 Packing List....................................................................................................................................11
3.2 Unpacking ......................................................................................................................................11
4Descriptions...........................................................................................................12
4.1 Temperature Controller Operation.................................................................................................12
5Operation................................................................................................................13
6Safety Features...................................................................................................... 13
6.1 Over-Temperature Protection ........................................................................................................13
6.2 Over-Power Protection...................................................................................................................14
7Maintenance Procedure ........................................................................................14
7.1 Routine Maintenance.....................................................................................................................14
7.2 Bath Cleaning.................................................................................................................................14
7.3 Idler Pulley Maintenance................................................................................................................14
8Replacement Parts................................................................................................. 15
9Service....................................................................................................................15
10 Storage ...................................................................................................................15
11 Warranty.................................................................................................................15
12 Returned Goods Policy......................................................................................... 16
13 Assembly and Wiring Diagrams...........................................................................17
Notes............................................................................................................................21

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1 Introduction
Koehler Model K30160, K30165, K30166 Rust
Preventing Characteristics Oil Bath determines a
lubricants ability to prevent the rusting of metal
surfaces. They are suitable for steam turbine oils,
gear oils, hydraulic oils, and other types of
inhibited mineral oils.
This manual provides operating instructions for
the K30160, K30165, K30166 Rust Preventing
Characteristics Oil Bath, and should be used in
conjunction with applicable standard test methods.
The following sources are recommended:
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 providing 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 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
email: [e-mail]
ASTM Publication:
ASTM D665: Rust-Preventing
Characteristics of Inhibited Mineral Oil in
the Presence of Water
2. International Organization for
Standardization (ISO)
1, rue de Varembé
Case postale 56
CH-1211 Geneva 20, Switzerland
Tel: [phone]
Fax: [phone]
http://www.iso.org
ISO Publication:
ISO 7120
3. Energy Institute (IP)
61 New Cavendish Street
London, WIM 8AR, United Kingdom
Tel: [phone]
Fax: [phone]
http://www.energyinstpubs.org.uk/
IP Publication:
IP 135: Rust-Preventing Characteristics of
Steam Turbine Oil in the Presence of
Water
4. Deutsche International Norm (DIN)
DIN Publication:
DIN 51355
DIN 51585
5. Federal Test Method (FTM)
FTM Publication:
FTM 791-4011
FTM 791-5315
1.3 Electrical Requirements
Model No
Voltage
Frequency
K30160
115V
60 Hz
K30165
220-240V
50 Hz
K30166
220-240V
60 Hz

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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 and 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.
Over Temperature Protection. This unit is
equipped with Over Temperature Protection (OTP)
circuitry to prevent overheating. The unit will
automatically interrupt power whether equipment
malfunction or operator error causes the
temperature to exceed either 20 °C above the set
point or the maximum recommended temperature
range. The power can only then be restored by
identifying and correcting the problem, allowing
the unit to return to normal operating
temperatures, and resetting the power to the unit.
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.
Precipitation Naphtha
WARNING: Extremely Flammable. Vapors
or spray mist harmful if inhaled.
Vapors may cause flash fire.
Keep away from heat, sparks, open
flames, or any other ignition sources.
Keep container closed. Beware of static
discharges.
Prevent build-up of vapors by opening all
windows and doors to achieve cross-
ventilation. Also, use under a hood.
Avoid contact with eyes, skin, and
clothing.
Turn off all stoves, heaters, motors, and
pilot lights during use and until all vapors
are gone.
Isooctane
WARNING:Extremely flammable. Vapors or
spray mist harmful if inhaled.
Vapors may cause flash fire. Keep
container closed.
Keep away from heat, sparks, open
flames, or any other ignition sources.
Prevent build-up of vapors by opening all
windows and doors to achieve cross-
ventilation. Also, use under a hood
Avoid contact with eyes, skin, and
clothing.
Turn off all stoves, heaters, motors and
pilot lights during use and until all vapors
are gone. Beware of static discharge.
IP 60/80 Petroleum Spirit
WARNING: Extremely flammable. Vapors
or spray mist harmful if inhaled.
Vapors may cause flash fire.
Keep away from heat, sparks, open
flames, or any other ignition sources.
Keep container closed.
Prevent build-up of vapors by opening all
windows and doors to achieve cross-
ventilation. Also, use under a hood
Avoid contact with eyes, skin, and
clothing.
Beware of static discharges.
Turn off all stoves, heaters, motors and
pilot lights during use and until all vapors
are gone. Beware of static discharge.

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3 Getting Started
3.1 Packing List
Component Check List:
K30160, K30165, or K30166 Rust Preventing
Characteristics Oil Bath
K30100 Steel Test Specimens with Type 2
Plastic Specimen Holders (6)
K30120 Plastic Beaker Covers (6)
Accessories (purchased separately)
332-002-006 Test Beaker, 400mL (6)
250-000-09F ASTM 9F Thermometer
Range: 20 to 230°F
250-000-09C ASTM 9C Thermometer
Range: -5 to +110°C
K30130 Chuck for Polishing Test Specimens
380-150-002 Aluminum Oxide Cloth, 150-grit,
pack of 50
380-240-002 Aluminum Oxide Cloth, 240-grit,
pack of 50
K30140 Auxiliary Stirrer Blade
K30110 Steel Test Specimen without holder
3.2 Unpacking
1. This unit comes packed in a crate with the rust
test specimens packed in a separate carton
inside the main crate.
2. Extract instrument and place on suitable cart
for transportation to work area / lab bench.
WARNING: Be sure two or more individuals
are available for extracting and lifting instrument
from box to cart and from cart to bench.
Individuals must lift in accordance to proper
technique. See Figure below.
3. Lift instrument from cart and place on bench.
4. Unpack the rust test specimens from the
separate carton and place in a safe location.
5. 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.
Environmental Conditions: The instrument
environment must comply with the following
conditions for proper setup:
No / Low Dust
No direct sunlight
Not near heating or AC ventilation ducts
No Vibrations
Clearance from other instruments
Temperature Range: 5 to 40°C
Elevation to 2000 meters
Relative Humidity: < 80%
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.
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.

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4 Descriptions
4.1 Temperature Controller Operation
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 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.

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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.
5 Operation
1. Be sure to read the safety and hazard
warnings, the installation procedure and any
of the standard test methods mentioned in the
introduction of this manual before operating
this instrument.
2. Flip the Line Switch to the ON position.
3. Observe the display panel of the digital
temperature control. Upon power initialization
all LED’s will momentarily be illuminated. After
five seconds, the control will reset and display
the current bath temperature on top as PV or
process (or actual) value. The bottom display
is the setpoint value or SV
4. To raise the apparatus temperature, push the
ascending arrow until the desired temperature
is displayed in the setpoint value display. To
lower the setpoint value, push the descending
arrow until the desired temperature is
displayed in the setpoint value display.
The maximum setpoint temperature limit is
programmed at 150°F.
WARNING: Do not set a temperature
higher than 150°F. The software
overtemperature protection is set at 200°F. If
an overtemperature situation occurs, power to
the heaters is interrupted until the operator
shuts off the bath or the bath cools down.
WARNING: There are exposed hot
surfaces on the bath. Avoid contact with
exposed skin by the use of protective
equipment as required or serious injury could
occur.
5. Test Sample Setup Instructions
Fill the beaker with an oil sample up to the
graduation mark. Place beaker into the
chamber. Place the plastic beaker cover on
top. Push up on the upper stirrer shafts
(already assembled). Insert a lower stirrer
shaft into the slot provided on the beaker
cover. Connect the lower stirrer shaft to the
upper stirrer shaft by slipping it into the slotted
coupling and twisting to the left or to the right
as required. Install the test specimen into the
beaker. Insert the ASTM grade thermometer
with a cork into the plastic beaker cover.
Adjust the stirrer height as per the instructions
outlined on the lower left side of the stirrer
Arrangement Assembly diagram,. A vernier
caliper may be used to measure the correct
stirrer height.
Turn ON the stirrer motor by flipping the Stirrer
Motor Switch up.
6. Proceed to test in accordance with any of the
following standard test methods: ASTM D665,
IP 134, ISO 7120, DIN 51355, DIN 51585,
FTM 791-4011, FTM 791-5313
6 Safety Features
The Koehler Rust Preventation Bath is equipped
with several safety and protection features, which
are described in the following sections.
WARNING: The bath is NOT Explosion
Proof.
6.1 Over-Temperature Protection
The Koehler Rust Prevention Bath is equipped
with Over-temperature Protection (OTP) circuitry,
which prevents the unit from exceeding unsafe
operating temperatures. If the unit cannot maintain
the set point temperature and begins to decline,
the OTP circuitry may have been activated. Please
follow these steps.
1. Turn off the unit power switch and disconnect
the line cord.
2. Determine the source of the problem and
correct the situation.

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3. Restart the unit. Monitor the operations to
ensure that the unit is operating properly. If
you are still experiencing trouble, please
contact Koehler technical service for
assistance.
6.2 Over-Power Protection
The Koehler Rust Prevention Bath is equipped
with Over-power Protection circuitry, which
prevents the unit from unsafe electrical conditions.
If power to the unit is lost, then turn off the main
power and turn it back on again. The main power
switch also functions as a circuit breaker.
7 Maintenance Procedure
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.
7.1 Routine Maintenance
The Rust Preventing Characteristics 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).
7.2 Bath Cleaning
To clean the instrument’s exterior, which
includes all painted surfaces and glass, 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.
Glass surfaces may be cleaned using a more
aggressive solvent such as acetone, if
necessary.
SHOCK AND BURN HAZARD: Only clean
inside the bath when equipment is de-energized
and unplugged from the mains power supply.
Allow adequate time for heating coils to completely
cool before cleaning.
7.3 Idler Pulley Maintenance
Occasionally oil the Idler Pulley (see the Idler
Assembly Diagram)
To Replace the Idler Assembly Belt:
1. Remove the spindle guard.
2. Remove the ¼-20 x ¾ long bolt on the
right rear of the cross brace (as outlined
on the Stirrer Arrangement Diagram)
3. Install the idler assembly K301-0-16A
using the longer ¼-20 x 1” bolt supplied.
4. Loosen the ¼-20 bolt holding the cam
(K301-0-15)
5. Install the new belt (301-005-001) to the
spindle pulleys and sheave as shown in
the Stirrer Arrangement diagram
6. Adjust the tension on the belt using the
cam. The belt should have a slight
deflection of approximately ¼-3/8 of an
inch.
7. Tighten the cam by locking and mounting
the bolt. Run the spindles and check that
the belt is running correctly.
8. Replace the stirrer guard and secure
tightly

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8 Replacement Parts
Part Number
Replacement Part
K299-0-16
Bearing Housing (#1)
289-001-012
Ball Bearing (#2)
K301A-0-6
Crossbar (#3)
326-102-004
½ ID Steel CAD/PL Collar (#4)
K301-0-5
Stirrer Collar (#5)
K301-0-7
Stirrer Housing Assembly (#7)
K301-0-16A
Idler Pulley Assembly (#16A)
K301-0-8L
L.H. Upper Stirrer Assembly
K301-0-8R
R.H. Upper Stirrer Assembly
K301-0-9
Lower Stirrer Shaft
K301-0-10
Stirrer Pulley, 50/60 Hz
K301-0-11
Stirrer Rod
288-115-056
Motor, 115V 60 Hz
288-230-001
Motor, 230V 50 Hz
288-230-003
Motor, 230V 60 Hz
K301-0-11A
Motor Pulley, 50 Hz
K301-0-12
Motor Pulley, 60 Hz
K301A-0-5
Heater, 1500W 115V
K301A-1-0-5
Heater, 1500W 230V
265-600-001
RTD Temperature Probe
275-103-044
Temperature Controller, RS485
301-005-001
Endless Woven Polyester Belt
*(#--) numbers refer to parts indicated on
assembly drawings
9 Service
Under normal operating conditions and with
routine maintenance, the Rust Preventing
Characteristics Bath should 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:
10 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.
11 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.

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Operation and Instruction Manual
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12 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 with 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.

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Operation and Instruction Manual
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13 Assembly and Wiring Diagrams

K30160, K30165, K30166 Rust Preventing Characteristics Oil Bath
Operation and Instruction Manual
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K30160, K30165, K30166 Rust Preventing Characteristics Oil Bath
Operation and Instruction Manual
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K30160, K30165, K30166 Rust Preventing Characteristics Oil Bath
Operation and Instruction Manual
K30160,5,6-Manual -20-