Koehler K88530 Guide

Operation and Instruction Manual
REV A
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
K88530, K88539
Automatic Air Release Value Instrument

CERTIFICATE OF CONFORMANCE
Air Release Apparatus
K8853X
This certificate verifies that part number K8853X, Air Release Apparatus, was
manufactured in conformance with the applicable standards set forth in this
certification.
Specifications: ASTM D3427
IP 313
ISO 9120
DIN 51381
NF E 48-614
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

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 and are 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.
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).

K8853X Air Release Value Instrument
Operation and Instruction Manual
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Table of Contents
1Introduction ...................................................................................................................3
1.1 Koehler’s Commitment to Our Customers .............................................................................................3
1.2 Recommended Resources and Publications.........................................................................................3
1.3 Instrument Specifications.......................................................................................................................4
2Safety Information and Warnings ................................................................................4
3Getting Started...............................................................................................................4
3.1 Packing List............................................................................................................................................4
3.2 Unpacking ..............................................................................................................................................4
3.3 Setup......................................................................................................................................................5
4Descriptions...................................................................................................................6
4.1 Instrument Description ...........................................................................................................................6
5Operation .......................................................................................................................7
5.1 General Operation..................................................................................................................................7
5.2 Performing a Test...................................................................................................................................8
5.3 Drying Oven Operation ........................................................................................................................12
6Safety Features............................................................................................................13
6.1 Over-Temperature Protection ..............................................................................................................13
6.2 Over-Power Protection.........................................................................................................................13
7Maintenance.................................................................................................................13
7.1 Routine Maintenance ...........................................................................................................................13
7.2 Instrument Cleaning.............................................................................................................................13
7.3 Replacement Parts...............................................................................................................................14
8Troubleshooting..........................................................................................................15
9.1 Unit does not power up ........................................................................................................................15
9.2 Unit is on and keeps resetting into start up routine..............................................................................15
9Service..........................................................................................................................15
10 Storage.........................................................................................................................15
11 Disposal .......................................................................................................................15
11.1 General Recycling Information..........................................................................................................15
11.2 Disposal Information .........................................................................................................................15
12 Warranty.......................................................................................................................16
13 Returned Goods Policy...............................................................................................16
Notes..................................................................................................................................17

K8853X Air Release Value Instrument
Operation and Instruction Manual
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K8853X Air Release Value Instrument
Operation and Instruction Manual
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1 Introduction
The Koehler K8853X Air Release Value
Instrument and Data Acquisition Software is the
latest design for performing the ASTM D3427 test
method and related test specifications.
The air release value is the ability of a turbine,
hydraulic, or lubricating oil to separate entrained
air and is a key performance characteristic in
applications where agitation causes a dispersion
of air bubbles in the oil. To determine air release
properties, the sample is heated to a specified test
temperature and blown with compressed air. After
the air flow is stopped, the time required for the air
entrained in the oil to reduce in volume to 0.2% of
original value is the air bubble separation time.
This manual provides important information
regarding safety, technical reference, installation
requirements, operating condition specifications,
user facility resource requirements, and operating
instructions for the Air Release Value Instrument
and Data Acquisition Software. 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 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 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
email: [e-mail]
ASTM Publication:
•ASTM D3427: Air Release Value of
Petroleum Oils
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 9120: Petroleum and related
products –Determination of Air Release
Properties of Steam Turbine and other
Oils –Impinger Method
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 313: Air Release Properties of
Petroleum Oils
4. Deutsche International Norm (DIN)
http://www.din.de
DIN Publication:
•DIN 51381
5. Association Française de Normalisation
(AFNOR)
http://www.afnor.fr
AFNOR Publication:
•NF E 48-614

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1.3 Instrument Specifications
Model:
K88530
K88539
Electrical
Requirements:
115V 60Hz
220-240V 50/60 Hz
Temperature Range:
Ambient to 75°C
(167°F)
Dimensions
WxDxHin.(cm):
24x23x34
(61x58.4x86.4)
Net Weight:
115 lbs (53kg)
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 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.
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.
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.
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
•K8853X Air Release Value Instrument w/
Integrated Balance and Circulation Bath
•K88530-1 Jacketed Test Vessel
•K88530-03509 Sinker, 10mL
•K88530-03514 Sinker, 5mL
•K88530-2 RTD Temperature Probe
•K8853X-Manual K88500 Air Release Value
Instrument Operation and Instruction Manual
Accessories (purchased separately):
•K885-115-1 Convection Oven, 115V 60Hz
OR
•K885-240-1 Convection Oven, 230V 50/60Hz
3.2 Unpacking
1. The K8853X Air Release Value instrument will
ship and arrive in a Wooden Crate.
2. To open the Wooden Crate, a crowbar or
prybar and a hammer will be required. Use the
crowbar and hammer to first open the top of
the crate.
3. Once the entire top piece is removed, observe
inside the crate for the instruments orientation.
Locate the front of the instrument and remove
the corresponding front panel of the wooden
crate.

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4. Once the top and front panels of the crate
have been removed it will be easy to remove
the 2x4 supports.
5. Extract the instrument from the crate 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.
6. Lift instrument from cart and place on lab
bench.
7. Before opening the Cardboard Box, check the
Shock Watch Label on the Box for indication
of rough handling and possible damage.
8. Check labeling for correct orientation of
instrument. (e.g. This Side Up)
9. Carefully open top of box with box cutter and
remove packing foam.
10. 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.
3.3 Setup
Equipment Placement. Make sure the instrument
is placed on a firm, level table. 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.
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%
Glassware. Place the air inlet tube into the
jacketed test vessel. Secure the assembly to the
front of the main unit, where the rotating plate
serves the resting base for the jacketed test
vessel.
Compressed Air Source. Connect a source of
oil-free, filtered compressed air source to the main
unit with a pressure of 80-115 psi. The connection
should be made to hose-barb located on the left
side of the main unit.
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 Instrument Description
Figure 1. Instrument Descriptions
1. Touch Screen Control Panel. The unit is
controlled from this touch screen display.
2. USB Port. 2 USB ports located on the front of
the unit can be used for exporting to an
external drive or connecting a printer.
3. Water Tank Fill. The internal water circulator
is filled by pouring water here.
4. External Chiller Input and Output. For
testing below ambient temperature and
external chiller can be connected to these inlet
and outlet ports.
5. Pressure Adjustment Knob. Used to adjust
the air pressure.
6. Water Outlet. Water from the jacketed test
vessel goes back to the tank via this line.
7. Drip Pan. The drip pan collects any oil that
spills and drips during the test. It is removable
for easy cleaning.
8. Water Inlet. This line is the water inlet to the
jacketed test vessel.
9. Sinker Warmer. Air bath used to warm the
sinker.
10. Jacketed Test Vessel. Holds the oil sample.
11. Exhaust Filter. Filters the exhaust air of oil
particles.
12. Air Inlet Tube. Will go inside the jacketed test
vessel during a test and supplies air to the
sample.
13. Analytical Balance. The internal analytical
balanced is housed here. The sinker is hung
from here using a platinum wire.
14. Air Inlet Connection. This is the air line to the
air inlet tube to the sample.
15. Air Outlet Connection. This is the air line
from the sample exhaust which is then filtered.
Figure 2. Back Panel Descriptions
1. Power Switch. Turns the power to the unit on
or off.
2. USB Port. 2 USB ports located on the back of
the unit can be used for exporting to an
external drive or connecting a printer.
3. Ethernet Port. For connecting to the internet.
4. Line Cord. Supplies power to the unit.

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5 Operation
The Koehler Air Release Value Apparatus is
designed for acquiring test data in accordance
with the ASTM D3427 and related test procedures.
Please be sure to read the safety and hazard
warnings, the installation procedure, and the
standard test method before operating this
software and instrument.
5.1 General Operation
1. Main. Turn on the main power switch to the
Air Release Value Apparatus (located on the
back of the unit). The Main screen will appear
on the touch screen control panel. See Figure
5 below. On this screen the Sample ID and
the Operator name can be entered. The main
screen also shows the Water Tank Level, the
Setpoint Temperature of the Bath as well as
the actual Bath Temperature.
Figure 5. Main Screen
2. Results. The results tab is where you can find
the stored test results. From here you can
select a result to view the graph, print it or
export the results via LIMS. See figure 6
below:
Figure 6. Results Tab
3. Settings. The settings can be accessed by
clicking the Settings Tab on the top of the
Main Screen. This tab has an option for
System Settings or Test Settings. The
Systems Settings screen gives general
information about the unit and software and
can be seen in the following Figure 7. The
Test Settings screen is where the user can
select the Temperature Units, Water/Air
Temperature, Sinker Size being used, Initial
Sample Warming Time and Glassware
Preheat Time. This screen is shown in Figure
8.
Figure 7. System Settings

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Figure 8. Test Settings
4. Calibration. Within the Calibration Tab there
is a tab for Ticket Summary (Figure 9), this
gives an overall calibration summary that can
easily be printed. The calibration summary
clearly shows the water temperature
calibration offsets as well as the air
temperature calibration offsets. The other tab
is the Temperature Calibration Tab. Here is
where the offset values at the different
temperature points (in Celsius) can be
entered. Refer to Figure 10.
Figure 9. Calibration Ticket Summary
Figure 10. Temperature Calibration
5. Maintenance. The maintenance tab shows
the overall instrument performance such as:
bath temperature, air temperature, water tank
level, mass reading, pressure, sample
temperature, etc. From here the balance can
be tared, the lift can be brought to its different
positions and the air pump can be switched on
and off for general maintenance purposes.
Figure 11 below shows all the information you
can find in the maintenance tab.
Figure 11. Maintenance Tab
5.2 Performing a Test
1. Starting the Test. From the Main screen Tab
select the ‘Start’ button. When selected a pop-
up message will appear (shown in Figure 12)
explaining that the lift will need to perform a
home routine. Make sure there is nothing
obstructing the lift movement and remove the

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sinker if it was previously loaded, then press
the ‘Ok’ button.
Figure 12. Starting a Test
The water bath temperature should be at the
setpoint temperature before running the test. If
it has not yet reached the temperature the
below warning will appear.
Figure 13. Bath Temperature Warning
2. Next, the screens shown in Figures 14 -
16 will appear. Follow the on-screen
instructions: Pour 180mL of the hot
sample into the test jar, place the test jar
onto the stage, place and attach the
temperature probe and hook the sinker
onto the balance hook. Once all steps are
completed, press the ‘Continue; button
which will appear on the bottom right
corner of the screen.
Figure 14. Pouring Sample (Step 1 & 2)
Figure 15. Attaching Temperature Probe (Step 3)
Figure 16. Hook Sinker (Step 4)
3. After selecting ‘continue’in the previous
screen, the sample will now start warming and
the mass of the sinker in air will be recorded
as shown in Figure 17 on the following page.

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Figure 17. Test Information –Sample Warming
A popup message will appear warning that the
lift stage will be moving to the density position.
Make sure not to obstruct the movement of
the stage. Press ‘OK’ to continue. (Figure 18)
Figure 18. Warning Message –Density Positon
4. Once the stage is in the correct position for
density measurement it will ask to adjust the
stage to position the sinker at the proper level.
Press the up and down arrows as shown in
Figure 19 until the sinker is at the correct
height from the bottom of the test jar. The
screen will now also show the mass of the
sinker in the sample in kg. Once the sinker is
in the correct position, select the ‘Continue’
button at the bottom right corner of the screen.
Figure 19. Sinker Positioning
5. Initial Density Measurement. After selecting
‘Continue’ in the previous step the initial
density measurement is made and the target
density and mass is calculated. Figure 20
shows these results. The on-screen
instructions will now tell you to remove the
sample temperature probe and replace it with
the top glassware. Once you have performed
this task press the ‘Continue’ button.
Figure 20. Target Density / Mass Calculation
6. Next, the glassware will be pre-heated for a
specified time. Once the pre-heating step is
complete, the ‘Continue’ button will appear.
(Figure 21)

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Figure 21. Glassware Pre-Heating
7. After selecting ‘Continue’ in the previous step,
a message will appear on the screen stating
‘Please wait lift moving.’ Make sure the lift is
clear of obstructions while moving. Once in
position the message will change to say
‘Press Continue to start Aeration’ and the
‘Continue’ button will appear (Figure 22)
Figure 22. Start Aeration Message
8. Once ‘Continue’ is selected in the previous
step the aeration process will begin. The
screen will change to show the remaining Air
Intrusion Time as well as the Air Pressure as
shown in Figure 23.
Figure 23. Air Intrusion Time
9. After the set time has elapsed for air intrusion
a message will appear warning ‘ Lift stage in
motion. Stay clear’. Once in position the
screen will change to a real-time view of the
test showing the timer, status, target density,
current density, and a graph of the density vs.
time as shown in Figure 24 below.
Figure 24. Running Test
10. Test Complete. Once the density value
reaches the target density, the test will
automatically stop. The Actual Target Density
and the Time to Target Density will be
displayed below the graph as shown in Figure
25. The option to Drain Water and then
continue are given. Once ‘Continue’ is
selected the pop up message will appear
warning that the stage will be moving to the
load position, press ‘OK’ to continue (Figure
26)

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Figure 25. Test Complete
Figure 26. Warning Message
11. Results Summary. The Test Result Summary
will now appear on the screen showing all of
the results as in Figure 27 below.
Figure 27. Test Result Summary
5.3 Drying Oven Operation
Figure 28. Drying Oven
The Koehler Laboratory Oven that can be
purchased with the Koehler Air Release Value
Instrument is a standard laboratory oven. The
On/Off power button turns on the power to the
oven on and off, and the analog dial controlled the
heating rate and maximum temperature.
Allow time for the oven to reach its maximum set
temperature and to stabilize.
WARNING: Do not use in the presence of
flammable or combustible materials or explosive
gases. Do not use in the presence of pressurized
or sealed containers –fire or explosion may result,
causing death or severe injury.
WARNING: Do not heat any substance above
a temperature that will cause it to emit toxic fumes;
death or severe injury may result.
CAUTION: It is the user’s responsibility to monitor
oven action when setting and maintaining
operating temperature; oven failure may occur
with possible property damage and/or injury to
personnel.
WARNING: To avoid electrical short or shock,
do not allow any metal object to protrude into the
space beneath the shelf/heater shield inside the
oven. In addition, do not operate oven with the
shield removed.

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WARNING: Hot Surface At the higher
temperatures, the exterior of the oven and
particularly the thermometer vent ring on the top
become uncomfortably warm to the touch. To
avoid burns, do not touch these surfaces.
6 Safety Features
The Koehler K8853X Air Release Value
Instrument is equipped with several safety and
protection features, which are described in the
following sections.
WARNING: The K8853X Air Release Value
Instrument is NOT Explosion Proof.
6.1 Over-Temperature Protection
The Koehler K8853X Air Release Value
Instrument 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.
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 K8853X Air Release Value
Instrument 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
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 K8853X Air Release Value Instrument
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 Instrument Cleaning
•To clean the instrument’s exterior, which
includes all painted surfaces, 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.
•The drip pan is removable for easy cleaning
and should be emptied as needed.

K8853X Air Release Value Instrument
Operation and Instruction Manual
K8853X-Manual -14-
7.3 Replacement Parts
Part Number
Description
K88530-1
Jacketed Test Vessel
K88530-2
Probe for Sample Temperature
265-500-003
RTD Immersion Probe
271-015-004
Circuit Breaker, 2 Pole, 15A
090-280-000
Relay, 280V, 10A
091-032-001
Solid State Relay, 4-32V, 20A
K88500-03032
Platinum Wire
K88530-03509
Sinker, 10mL
K88530-03514
Sinker, 5mL
425-200-005
Power Supply, 12VDC, 2.5A, 30W
425-200-006
Power Supply, 24V, 13.4A
488-030-001
Heat Exchanger, 30 Plates
AS568-021-
EPDM
O-Ring, 0.926 ID x 1.06 OD
AS568-022-
EPDM
O-Ring, 0.989 ID x 1.129 OD
283-024-003
Solenoid Valve
283-024-004
Solenoid Valve
290-010-001
Pressure Regulator
220-120-014
Cartridge Heater, 1000W, 120V
AS568-151
O-Ring, Hi-temp Silicone
356-001-006
Gear Pump, High Pressure Magnetic
Control