Koehler K70 Series 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
K70XXX
Rotary Pressure Vessel Oxidation Bath

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -3-
CERTIFICATE OF CONFORMANCE
Rotating Pressure Vessel Oxidation Tester
K70XXX
This certificate verifies that part number K70XXX, Rotating Pressure Vessel
Oxidation Tester, was manufactured in conformance with the applicable
standards set forth in this certification.
Specifications: ASTM D2112
ASTM D2272
ASTM D4742
IP 229
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

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -4-

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -5-
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.

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -6-
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).

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -7-
Table of Contents
1Introduction..............................................................................................................8
1.1 Koehler’s Commitment to Our Customers .......................................................................................8
1.2 Recommended Publications ............................................................................................................8
1.3 Electrical Requirements...................................................................................................................8
2Safety Information and Warnings...........................................................................9
3Getting Started.........................................................................................................9
3.1 Packing List......................................................................................................................................9
3.2 Unpacking ........................................................................................................................................9
3.3 Installation Instructions...................................................................................................................10
3.4 Assembly Instructions ....................................................................................................................10
4Descriptions...........................................................................................................10
4.1 Temperature Controller Operation.................................................................................................10
5Operation................................................................................................................11
6Service.................................................................................................................... 12
7Storage ...................................................................................................................12
8Replacement Parts................................................................................................. 12
9Warranty.................................................................................................................12
10 Returned Goods Policy......................................................................................... 13
Assembly and Wiring Diagrams ................................................................................14
Notes............................................................................................................................17
Notes............................................................................................................................18

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -8-
1 Introduction
The Koehler K70XXXX Rotary Pressure
Vessel Oxidation Bath is a digitally controlled
constant temperature bath that simulates the
conditions to perform oxidation stability analysis
of petroleum based oils. This bath rotates
oxidation pressure vessels at 100 rpm at an
angle of 30° in accordance to ASTM
specifications. It tests samples at a temperature
ranging from ambient to 200°C. An over
temperature protection feature is provided by a
built in control that automatically interrupts
power to the bath when the bath liquid
temperature exceeds 220°C.
This manual provides operating instructions
for the K70XXX Rotary Pressure Vessel
Oxidation Bath, and should be used in
conjunction with applicable standard test
methods.
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 D2112: Oxidation Stability of
Inhibited Mineral Insulating Oils by
Pressure Vessel
ASTM D2272: Oxidation Stability of
Steam Turbine Oils by Rotating
Pressure Vessel
ASTM D4742: Oxidation Stability of
Gasoline Automotive Engines by Thin
Film Oxidation Uptake
2. Energy Institute (IP)
61 New Cavendish Street
London, WIM 8AR, United Kingdom
Tel: [phone]
Fax: [phone]
http://www.energyinstpubs.org.uk/
IP Publication:
IP 229: Oxidation Stability of Steam
Turbine Oils by Rotating Pressure
Vessel
1.3 Electrical Requirements
Model
Capacity
Voltage
Frequency
Amps
K70200
2 Vessels
220-240V
60 Hz
17.17 A
K70290
2 Vessels
220-240V
50 Hz
17.17 A
K70300
3 Vessels
220-240V
60 Hz
17.17 A
K70390
3 Vessels
220-240V
50 Hz
17.17 A
K70400
4 Vessels
220-240V
60 Hz
21.5 A
K70490
4 Vessels
220-240V
50 Hz
21.5 A

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -9-
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.
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.
Acetone:
WARNING: Flammable Liquid.
Keep away from heat, sparks, open
flames and other sources of ignition.
Do not smoke.
Keep container closed.
Use with adequate ventilation.
Irritant. May cause eye irritation and
transient injury may cause skin irritation;
may cause respiratory tract irritation.
Avoid inhalation of vapors.
3 Getting Started
3.1 Packing List
K70XXX Rotary Pressure Vessel Oxidation
Bath
RTD Temperature Probe
Accessories (purchased separately):
K70000-00000 Oxidation Pressure Vessel
K705XX-XP Oxidata™ Pressure
Measurement System
K70011,2,7 Pressure Vessel Support Rack
K70081-1 Male Quick Disconnect, ¼ NPT
K70082 Female Quick Disconnect for
Charging Hose
K70080 Charging Hose
K70013 Oxygen Pressure Regulator
Accessories for RPVOT (purchased
separately):
K70030 Copper Catalyst Coils (Alternative
to K70002, K70004, and K70090)
K70002 Winding Mandrel
K70004 Drive Unit, 220-240V
K70090 Copper Catalyst Wire (500 ft)
K70021 RPVOT Kit (Includes: RPVOT
Sample Beaker, Cover, Silicone O-Ring and
Spring)
250-001-37C IP 37C Thermometer (ASTM
D2272)
250-000-96C ASTM 96C Thermometer
(ASTM D2112)
Accessories for TFOUT (purchased
separately):
K70093 Catalyst Package A (For simulating
IIID engine test)
K70095 Catalyst Package B (For simulating
IIIE engine test)
K70092 Aluminum Insert
K70091 TFOUT Sample Container
K70048 TFOUT Sample Container Cover
K700-0-3A TFOUT Spring
250-000-100C ASTM 100C Thermometer
3.2 Unpacking
This unit comes packed in a special carton with
foam inserts protecting the unit. Remove the unit
and foam inserts (taped together) from the
carton. Carefully remove the inserts from the

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -10-
unit and be very cautious not to damage the
delicate glass cell. Place the unit on a firm, level
table away from direct sunlight which may affect
sensitivity of the photocell.
3.3 Installation Instructions
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%
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.
3.4 Assembly Instructions
1. Line up the holes of the bomb rack to the
holes on top of the bath and screw into
place using the provided screws.
2. Insert the RTD probe into the probe holder,
mounted on the top of the bath. Insert jack
at the end of the probe in receptacle
mounted on lower right side of the bath.
3. Check that the drain valve is closed, and
then fill the bath with the appropriate heat
transfer medium (water or white technical
oil) to ½ inch below the top of the overflow
pipe.
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

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -11-
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.
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 unit.
2. Turn the Line Switch and Stirrer Motor ON.
3. To set your temperature, press the
ascending/descending arrows until the
desired temperature is indicated on the
lower green LED display of the temperature
controller.
4. When the red LED display reaches the
desired temperature, the temperature of the
bath has stabilized.
5. Open the bath cover and insert the pressure
vessels into their appropriate slots. You will
know when the pressure vessels are locked
into place when you can no longer rotate the
pressure vessels manually.
6. Once the pressure vessels are in place,
close the cover hood.
7. Attach pressure transducer to the bomb
stem and turn ON the Motor Switch. This will
begin rotating the pressure vessels at 100
rpm.

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -12-
NOTE: Make sure the rotating pressure
vessels are clear of any dangling objects
(wires, electrical cords, etc.) or severe
damage may occur.
8. Proceed to test in accordance with any of
the test methods listed in the Introduction of
this manual.
6 Service
Under normal operating conditions and with
routine maintenance, the K70XXX Rotary
Pressure Vessel Oxidation 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:
7 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.
8 Replacement Parts
Part Number
Replacement Part
050-001-028
Switch, Single Pole 15A
265-500-001
RTD Bath Probe
265-600-001
RTD Over Temperature Probe
275-103-044
Temperature Controller 100-240V
288-115-004
Stirrer Motor 115/230V 50/60Hz
288-115-009
Drive Motor 115/230V 50/60Hz
K702-0-8
Control Heater, 1000W 230V
K702-0-8A
Continuous Heater, 1000W 230V
K703-0-8
Control Heater, 1000W 230V
K703-0-8A
Continuous Heater, 750W 230V
K704-0-8
Control Heater, 1000W 230V
K704-0-8A
Continuous Heater, 750W 230V
K460-0-8
Thermometer Holder
K700B-0-41
Drive Shaft Seal
AS568-345-V14
O-Ring (Viton)
K102-31
Light Source
9 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,

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -13-
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.
10 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.

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -14-
Assembly and Wiring Diagrams

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -15-

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -16-

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -17-
Notes

K70XXX Oxidation Stability Bath
Operation and Instruction Manual
K70XXX-Manual -18-
Notes