OfiTE 170-00-3 User manual

HTHP Filter Press for Drilling Fluid Testing
with 175-mL, Single-Capped Test Cell and N2Pressuring Manifold
170-00-3 (115 V)
170-01-3 (220 V)
Instruction Manual
Updated 6/14/2019
Ver. 6
OFI Testing Equipment, Inc.
11302 Steeplecrest Dr. · Houston, Texas · 77065 · U.S.A.
Tele: 832.320.7300 · Fax: [phone] · www.ote.com
©Copyright OFITE 2015

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 1
Intro..................................................................................................2
Specications .................................................................................3
Components ...................................................................................4
Safety...............................................................................................9
Diagrams .......................................................................................16
Quick Start ....................................................................................18
Operation.......................................................................................21
Data................................................................................................28
Maintenance..................................................................................29
Warranty and Return Policy ........................................................33
Table of
Contents

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2
Intro The OFI Testing Equipment (OFITE) High Temperature High Pressure
(HTHP) Filter Press is designed to evaluate the ltration characteristics
of drilling uids, cement slurries, fracturing uids, and completion uids
under elevated temperatures and pressures. Evaluating uids under HTHP
conditions similar to the downhole environment is of paramount importance.
Fluid properties must be monitored while under high temperatures and
pressures as ltration behavior and wall cake building characteristics
of permeable formations change with changing environments. These
characteristics are affected by the shape, type, and quantities of solids
present in the uid and their physical and electro-chemical interactions,
all of which are affected by changing temperatures and pressures.
OFITE manufactures and provides HTHP ltration units in two basic sizes,
175 mL and 500 mL capacities. Both are used extensively throughout the
world and in all environments, but in general the 175 mL units are designed
for eld portability, while the larger 500 mL units are designed for laboratory
usage at higher temperatures and pressures. All OFITE Filtration devices
fully conform to American Petroleum Institute (API) specications.
A complete HTHP Filter Press consists of a controlled pressure source,
usually Nitrogen pressurization or Carbon Dioxide bulbs for the 175 mL
units. Top and bottom pressure manifolds are provided to simulate the
differential pressures found in a down-hole environment, and to prevent
evaporation of the base uid if exceeding the boiling point of that uid. The
test cells are provided in a variety of assemblies, depending upon the type
of uid tested, the lter media, and the temperatures and pressures desired.
The test cells are encased inside a heating jacket, which is adjustable.
A variety of lter media are available, the most common being standard
API lter paper, cement screens, and ceramic lters. The ceramic
lters may be obtained to match the pore throat or permeability of
the formation. Natural formation lters or cores may also be used
of differing pore throat / permeability sizes. Slotted disks of varying
sizes are frequently used for lost circulation materials studies.
The 175 mL has a maximum temperature of 350°F (177°C) and the 500 mL
heating jackets are capable of reaching 400°F (204°C). However, lower
uid volumes due to uid expansion at higher temperatures, limit the 175 mL
units to a useful working temperature of 300°F (149°C). Anyone running tests
above 350°F (177°C) must substitute a complete set of o-rings after each and
every test.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 3
Specications Size: 7.5" × 11" × 23.5" (19.1 × 27.9 × 59.7 cm)
Weight: 27 lb (12.3 kg)
Shipping Size: 17" × 23.5" × 12.5" (43.2 × 59.7 × 31.8 cm)
Shipping Weight: 38 lb (17.2 kg)
Maximum Temperature
(Heating Jacket): 350°F (177°C)
Maximum Pressure (Cell): 2,000 psi (13.8 MPa)
Maximum Pressure (Receiver) 750 psi (5,171 kPa)
Pressure Source: Nitrogen Tank (Sold Separately)
Test Cell Capacity: 175 mL
Voltage: 115 VAC, 5 Amps, 50/60 Hz
230 VAC, 3 Amps, 50/60 Hz
Heater: 400 Watt

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 4
Components Supplies:
#153-14 Glass Graduated Cylinder, 50 mL × 1 mL
#154-10 Metal Dial Thermometer, 5" Stem, Dual Scale: 50° - 500°F / 0° -
250°C
#170-19 Filter Paper, 2 ½" (6.35 cm), Specially Hardened for Filter Press-
es, Box of 100
#170-35 Adjustable Wrench, 6 inch
#170-00-1 Heating Jacket (115V)
#170-01-1 Heating Jacket (230V):
#130-10-52 Jam Nut, ⅜"-24, Stainless Steel, Qty: 2
#130-38-005 Strain Relief
#165-40-4 Power Cable (230 Volt Only)
#170-05 Thermostat
#170-09 Insulation Board
#170-10 Thermostat Pilot Light
#170-11 Heating Element, 115V, 200W, Qty: 2
#170-15 Base
#170-21 Stand Support Rod, Qty: 2
#170-25 Aluminum Well
#170-30 Stainless Steel Thermostat Cover
#170-30-001 Fish Paper
#170-44 Rubber Foot, ½", Qty: 4
#171-32 Midget Knob
#171-82 Power Cord, 8', with Male Plug 8, 16/3 SJ, Round (115 Volt
Only)
Assemblies:
#170-06-1 Back Pressure Receiver, 15 mL Stainless Steel Tube for N2
#144-11 Street Ell, 90, ⅛"
#144-15 Plate Brass Bushing, ⅛" NPT Male to ⅛" NPT Female
#170-07 O-ring
#170-28 Receiver Body
#170-32 NPT Male Needle Valve, ⅛" × ⅛"
#171-23-1 Safety Pin with Lanyard
#170-12-2 175-mL, Single-End Test Cell, 2000 psi (13.8 MPa)
#170-13-3 O-ring for Cell, Viton 75, Qty: 2
#170-16 Valve Stem, Qty: 2
#170-17 O-ring for Valve Stem, Qty: 4
#170-26-1 Stainless Steel Locking Screw, Hardened, Qty: 6
#170-27 Allen Wrench,   "
#170-45-2 Cell Body, 316 Stainless Steel
#171-21 Cell Cap with 60 Mesh Screen, 2000 psi (13.8 MPa)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 5
#171-24 1350 / 750 psi (9,308 / 5,171 kPa) Nitrogen Manifold
#142-39 Pipe Plug,  "
#170-20 Manifold Block
#170-32 NPT Male Needle Valve, ⅛" × ⅛"
#171-23-1 Safety Pin with Lanyard
#171-24-001 Regulator, Modied, Qty: 2
#171-24-1 Chrome Nut, R.H., Reg Inlet CGA-580
#171-24-2 Nipple with Filter
#171-24-3 Flare × ⅛" to FNPT Female, ¼"
#171-24-5 NPT Street Tee, 316 Stainless Steel, ¼", Qty: 2
#171-25-1 Relief Valve set at 750 psi (5,171 kPa)
#171-25-2 Relief Valve set at 1,350 psi (9,308 kPa)
#171-26 Hose, 5000#,   " × 3', Qty: 2
#171-28 Dual Manifold Body
#171-38 Gauge, 1,000 psi, 2", ¼" NPT Bottom
#171-40 Gauge, 1,500 psi, 2", ¼" NPT Bottom
#171-42 Gauge, 3,000 psi, 2", ¼" NPT Bottom
#171-90-06 Reducing Bushing, ⅛" MNPT × ⅛" FNPT, 316 Stainless
Steel
#171-90-07 Hex Nipple, ¼" NPT, 316 Stainless Steel, Qty: 2
#171-90-13 Adapter, ¼" Flare × ¼" Male NPT
Optional:
#170-37 Nitrogen Cylinder, 21" × 7", Right-hand Thread
#143-00-1 Diaphragm for Airco Regulator
#143-07 Repair Kit for Regulator (#143-00)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 6
Part Number Description Quantity
#143-00-1 Diaphragm for Concoa Regulator 2
#143-07 Repair Kit for Concoa Regulator 2
#153-14 Graduated Cylinder, 50 mL × 1 mL 2
#154-10 Dial Thermometer, 5" stem, 5 – 500°F & 0 – 250°C 1
#170-05 Thermostat 1
#170-07 O-Ring, Nitrile 70D 1
#170-10 Thermostat Pilot Light 1
#170-11 Heating Element 115 Volt – 200 W 2
#170-13-3 O-ring for test cell and cap, Viton 75D 50
#170-16 Valve Stem, for cell pressure and de-pressuriza-
tion 4
#170-17 O-ring, for Valve Stem, Viton 75D 100
#170-19 Filter Paper, 2 ½" (6.35 cm), hardened for Filter
Press, 100/box 10
#170-26-1 Locking Cap Screw, Hardened Alloy Steel 24
#170-27 Allen Wrench,   "1
#171-23-1 Safety Pin with Lanyard 2
Optional:
#170-00-3-SP Spare Parts Kit
Spare parts listings are intended to be used as a reference for future pur-
chases. Everyone’s consumable requirements will be different, and replace-
ment quantities needed will depend upon the number of test performed on a
daily and/or weekly basis.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 7
Optional Items for HTHP Filtration Testing:
The items listed below are not included in the HTHP Filter Press, but they
are items that will enable the technician to perform a more uniform and
reproducible test while maintaining a high degree of safety. As optional items,
the usage is not compulsory, but consideration should be given to these
items when running tests at elevated temperatures and pressures. Some of
the items will be used only on cell assemblies using set screws as fasteners,
while others should be implemented when operating all ltration equipment.
Interval Timer, 60 minute
(#155-20)
Cell Cap Removal Tool
(#170-33)
(Set Screw Cell Assemblies Only)
Safety Clamp (#170-92)
(Set Screw Cell Assemblies Only)
HTHP Pressure Relief Tool
(#170-91)
(To release trapped pressure)
Safety Shield (#171-06)
Cell Carrying Tool (#170-40)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 8
High Pressure Nitrogen Assy.
(#171-31)
Thermocouple Assembly
(#171-45-1)
(Direct temperature measurement
Of the uid Inside the Cell)
Stand for HTHP Cell Assembly
(#171-190-028)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 9
Safety Pressure and Temperature Considerations
Do not use or recongure this equipment in a manner not specied in this manual.
Pressure
There are two reasons for operating at elevated pressures when performing a
ltration analysis:
1. To test uids at temperatures above the boiling point, the vessel must
be pressurized, which in turn elevates the vapor pressure (boiling point)
so that the uid remains liquid and does not turn to steam.
2. If testing for drilling applications, pressurization will more approximate
down-hole conditions, enabling the technician to match both bottom
hole temperatures and pressures.
For temperatures less than 200°F (93°C) a back pressure receiver is
not required as the ltrate will not reach the boiling point. However when
operating above the boiling point of water, a suitable back pressure
receiver is required, otherwise the test uid will turn to steam and the
test is invalidated. The standard receiver tube supplied with the 175 mL
HTHP Filter Press holds 15 mL of ltrate, so it is very important that the
receiver outlet ball valve is opened after approximately ten seconds of
ltrate collection, as a uid with poor ltration qualities can easily ll the
15 mL receiver tube almost instantaneously. If this happens the ltrate
hopefully will all be ejected from the safety bleeder valve, but if there is too
much uid volume, the liquid may end up inside the regulator rendering
it useless which will require servicing by a knowledgeable technician.
Nitrogen is commonly used as a pressure source. A small Nitrogen cylinder
(#170-37), size 21" × 7" (Optional) provides the pressure source. These
cylinders are shipped empty, but when lled they may be pressurized
to 2,216 psi / 153 Bar. They have a standard CGA-580, Compressed
Gas Association – left handed thread tting connection. CGA 590 right
handed thread ttings are available upon request. A dual Nitrogen
manifold assembly is used and pressurizes both the top and the bottom
or back pressure devices simultaneously or individually as needed.
Temperature
Normally when one experiences a loss of pressure it is not due to a failure
of the metal alloy in the cell, but rather is a failure of the o-ring or elastomer,
which provides the seal. These o-ring may deform or melt under elevated
temperatures usually over 400°F (204°C) causing a pressurization failure of
the cell, which is often sudden and catastrophic. For example, if the valve
stem o-ring suddenly fails, then steam at 400°F and under great pressure
may shoot outward horizontally in one or several directions. A safety
shield should always be used when operating any HTHP Filter Press and
especially when one is going to extreme temperatures and pressures. Above
350°F (176°C) all o-rings must be replaced after each and every test.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 10
Heating Jacket
Turn the thermostat knob on the front of the metal plate to change
the temperature of the heating jacket. The thermostat cover is
marked from 1 to 10 and each whole number represents a separate
temperature. Each lter press will heat up a little differently so it is a
good idea to mark with a pen directly on the face-plate of the thermostat
cover the temperature which corresponds with each number. The
actual temperature of the heating jacket is measured with a stem
thermometer and then the thermometer is placed into the cell body.
The heating jacket will get very hot during the test so be careful not to touch
the outside of the jacket at any time during the heat-up period or the test.
It is especially easy to get burned when installing or removing the back
pressure receiver as the technician is working in a very conned space.
The power cord is supplied for either 115 Volts or 230 Volts and due to the
various types of plug connectors around the world it may be necessary to
change the plug on the end of the power cord. The power cable is 8 feet
in length and the heating jacket should be placed no farther than 8 feet
from the appropriate electrical outlet. The heat up time will vary from one
instrument to the next and the pilot light will turn on when the set temperature
has been reached. The temperature of the uid inside the cell however will
not be at the set temperature, so always allow one hour of heating time
for the uid, after the cell has been fully inserted into the heating jacket.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 11
The HTHP Filter Press is a very safe instrument to operate as long as the
instructions are strictly followed. It is imperative that the technician thoroughly
understands the assembly and disassembly procedures and also why the
order of steps is in place. Care should be taken to never use defective parts
and that OFITE’s temperature, pressure, and uid volume limits are strictly
adhered to at all times.
The heating jacket and cell will get very hot during the normal duration of the
test so the operator should take care to avoid burns. The operator should be
careful when attaching and removing pressure manifolds from the heating
jacket, especially the back pressure receiver assembly, which involves
operating in a small conned space.
Safety Retainer Pin
Always use a Safety Retainer Pin with an attached lanyard, and get in the
habit of securing the cotter pin to the pin. Improper placement of retainer pins
in the past have resulted in the pressure manifold separating from the lter
press which can cause damage to the equipment.
Retainer Pin with Lanyard Safety Retainer Pin with Lanyard
(#171-23-1)
The 175 mL HTHP Filter Press (#170-00-3 and #170-01-3) uses Nitrogen
as the pressure source for both the inlet and the back pressure. Nitrogen
is more inert or less chemically reactive than Carbon Dioxide and therefore
it is used extensively in ltration control analysis where chemical reactions
tend to occur when subjected to elevated temperatures and pressures. A
dual Nitrogen manifold is supplied which regulates pressure to both the inlet
and outlet ends of the pressure cell. A single Nitrogen regulator is available
if dual pressurization is not required. Nitrous Oxide (N2O) is available in the
same sized bulbs as CO2, but should never be used as a pressure source for
HTHP Filtration. Under high temperatures and pressures, Nitrous Oxide can
detonate in the presence of grease, oil or carbonaceous material.
Nitrogen Bottle (#170-37)
Optional
High Pressure Nitrogen Cylinder
(#171-31) Optional

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 12
Working Pressure
OFITE clearly stamps the working pressure of the cell assembly along with
the assembly serial number on each cell body and cell cap. These pressure
limits should never be exceeded on the pressure manifolds and uid volumes
inside the cell should strictly comply with instructions (see page 13).
However, in the past HTHP cells and caps from various manufacturers were
often not stamped, or in some cases, very old cell assemblies were stamped
“2500”. Cell assemblies with set screw secured caps should never be taken
to 2,500 psi, under any temperature or condition.
The 175 mL HTHP Filter Press (#170-00 and #170-01) are furnished with a
standard 2,000 psi working pressure cell assembly. OFITE also manufactures
HTHP cells with a 1,500 psi working pressure. Please note the 1,500 psi
and 2,000 psi cell assemblies do not have parts that are interchangeable,
so when ordering replacement cell caps for instance, know which working
pressure rated cell assembly you are ordering for.
Cell Cap, 1,500 psi, Set Screws: 0.75 inch thick
Cell Cap, 2,000 psi, Set Screws: 0.94 inch thick
Locking Set Screws
Locking set screws should have sharp points on the end. If the tip becomes
worn and attened, pressure may be lost in the cell or the cell cap may
become damaged. Any set screw cell cap that has elongated set screw holes
should be discarded as they are unsafe.
Locking Screw for HTHP Cell
Caps 2,000 psi, 90 Cone Point
(#170-26-1)
Cell Cap, 1,500 psi, HTHP Filter
Press 60 mesh screen.
2.5" × 0.75" Note - Round Set
Screw Holes. (#170-14)
O-ring Seals
The choice of o-rings, or elastomers as they are commonly called, is very
important in any high temperature high pressure environment. OFITE uses
Viton o-rings, a copolymer of Vinylidene, which are less pliable than some
Buna rings which may be encountered from other manufacturers, but they
withstand the higher temperatures better than the Buna rings. The maximum
temperature for the Viton o-rings is 400°F (204°C). OFITE suggests that all
o-rings (cell caps, cell bodies, and valve stem) are changed each time after
running a test of 350° F (176° C) or above.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 13
Fluid Expansion Space
Cells should never be lled completely with uid. Always leave some room
for the uid to expand under temperature. This keeps the cell caps from
becoming overstressed and possibly leading to a cell pressure failure or even
a loss of the cell cap completely.
Periodically check all gauges to ensure the proper pressures are in the
cell, as the pressure often increases or decreases depending upon the test
procedure and conditions.
Cell Corrosion
Test uids under high tempreature and pressure can corrode the cell body
and caps. Carefully inspect the cell body and calls for corrosion before and
after each test.
Some materials are more susceptible to corrosion than other. Also, some
uids and additives are more corrosive than others. OFITE offers a variety of
cell materials for different levels of corrosion resistance and cost.
API Recommended Void Space
Fluid / Temperature Void Space Fluid Volume
Water-based drilling uid. < 300°F 0.6" (1.5 cm) 138 mL
Water-based drilling uid. > 300°F 1.5" (4.0 cm) 86 mL
Oil-based drilling uid. < 350°F (176°C) 1" (2.5 cm) 115 mL
Oil-based drilling uid. > 350°F (176°C) Not Recommended -
Use 500 mL Cell
Void Space in a 1,500 psi rated cell body

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 14
The 175 mL HTHP Filter Press uses two regulators as standard equipment.
Both may be operated with Carbon Dioxide (CO2) or Nitrogen (N2) gas.
1. Concoa Regulator 8051140-00-1: Top or Main Pressure.
a. Maximum Inlet Pressure – 3,000 psi
b. ¼ inch NPT Connections
c. Single stage regulator
Regulator Safety
1. Never subject the regulator to inlet pressure greater than its rated inlet
pressure as shown on the regulator body.
2. Do not allow oil, oil bearing materials, grease, or other combustibles
to contaminate the inside or outside of the regulator, especially where
Oxygen is in use.
3. To minimize heat effects, avoid the use of piping or tubing between the
pressurized cylinder and the regulator. If unavoidable it should be as short
as practical and equipped with a shutoff valve located just before the
regulator.
4. The 8051140 regulator has been internally cleaned for Oxygen but it is
not recommended to pressurize HTHP Filtration tests with Oxygen due to
its potentially explosive nature.
5. Never pressurize a regulator that has loose or damaged parts or is in
questionable condition. Never loosen a connection or attempt to remove a
part until gas pressure has been relieved.
6. Before transporting pressurized cylinders that are not secured on a cart
designed for such transport, remove all regulators and recap the cylinders.
7. Check the regulator and all connections for leaks after installation and
periodically thereafter. Also check for leaks after any service in which
parts or connections were loosened. Brush with an approved leak
detection solution and bubbles should indicate a leakage.
8. An appropriately sized pressure relief device downstream of the regulator
should be installed in your system to prevent damage to equipment and/
or injury to personnel should an internal failure of the regulator occur.
9. Do not purge oxidizing or ammable gases in the presence of ame, lit
cigarettes, or other sources of ignition or towards people.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 15
HTHP Cell Assembly
The 170-12-2 HTHP cell assembly can handle maximum standard ltration
tests at elevated temperatures and pressures. The maximum pressure rating
is 2,000 psi and the temperature is 400°F (204°C). Most tests, conducted
with the 175 mL capacity lter presses under API standards, operate at an
inlet pressure of 600 psi and with temperatures up to 350°F (176°C). The
cell bodies and cell caps are scribed with serial numbers so that the same
cap and same cell bodies are used on each and every test, resulting in
more reproducible results. Additional information includes the part number,
temperature rating, the alloy and pressure rating of the cell.
All OFITE HTHP cell assemblies are made of Stainless Steel. For very
corrosive environments cell assemblies made of HastelloyTM C-276 or Inconel
are available and recommended.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 16
Diagrams Dual Nitrogen Manifold (#171-24)
Gauge
1500 psi
¼" NPT
(#171-40)
Gauge
3000 psi
¼" NPT
(#171-42)
Gauge
1000 psi
¼" NPT
(#171-38)
Manifold
Body
(#171-28)
Hex Nipple
¼" NPT
(#171-90-07)
Regulator, Left
(#171-24-002)
Regulator, Right
(#171-24-001)
Pipe Plug
(#171-24-4)
Reducing
Bushing
(#171-24-001)
Adapter, Male
¼" Flare
(#171-90-13)
Hose
(#171-26)
Street Tee,
¼" NPT
(#171-24-5)
Needle
Valve, ⅛"
(#170-32)
Relief Valve,
750 psi
(#171-25-1)
Manifold
Block
(#170-20)
Relief Valve,
1350 psi
(#170-32)
Elbow,
¼" Flare × ⅛" FNPT
(#171-24-3)
Nitrogen Cylinder,
R.H. Thread
(#170-37)
(Not included with Manifold)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 17
Needle Valve (#170-32)
Valve Stem (#170-16)
Heating Jacket
(#170-00-1/#170-01-1)
Cell Cap (#170-14)
Regulator (#143-00)
200-psi Gauge
(#143-01)
CO2 Puncture Head
Assembly (#143-02-10)
Barrel for CO2 Bulb
(#143-03)
Safety Bleeder Valve
(#143-06)
Needle Valve
(#170-32)
Manifold Block
(#170-20)
Safety Pin (#171-23-1)
With Lanyard
Valve Stem O-ring
(#170-17)
Test Cell Body
(#170-12)
Test Cell O-ring
(#170-13-3)
Locking Screw
(#170-26-1)
Valve Stem
(#170-16)
Receiver Body
(#170-28)
Support Rod
(#170-71)
Receiver O-
ring (#170-07)
(Not Shown)
Safety Pin (#171-23-1)
With Lanyard

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 18
Quick Start 1. Pre-heat the heating jacket to 10°F (6°C) above the desired test temperature.
2. Place a thermometer into the heating jacket.
3. Check all o-rings and coat with a thin coat of silicone grease.
4. Install o-rings in the cell, cell cap and valve stems.
5. Stir the test sample for ten (10) minutes with a high speed blender.
6. Install and tighten completely with a wrench the inlet valve stem.
7. Invert the cell and ll with test uid being careful not to get uid on the cell
o-ring. Leave room for uid expansion.
8. Place a circle of lter paper on top of the cell o-ring.
9. Inspect the cap locking screws and the cell cap seats.
10. Align the arrows on the cell cap and cell body and place the cell cap into the
cell.
11. Tighten the set screws into the cell, initially alternating screws.
12. With the ngers check that all of the set screws are completely tightened.
13. Screw the valve stem into the cap and tighten completely with a wrench.
14. Lower the cell into the heating jacket and rotate so it “seats” into the heating
jacket.
15. Move the thermometer from the heating jacket to the test cell.
16. Set a timer to 60 minutes and begin heating the sample for exactly one hour
(Never heat for more than 1 hour).
17. Connect the manifold block to the inlet valve stem and lock it in place with the
retaining pin and lanyard.
18. Check the needle valve on the manifold block is closed (tightened clockwise).
19. 19. Connect the male end of the pressure hose to the back pressure
receiver.
20. Connect the back pressure receiver to the outlet valve stem. Lock it in place
with the retaining pin and lanyard.
21. Check the needle valve on the outlet end of the receiver is closed (tightened

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clockwise).
22. Adjust both the top and back pressure on the dual manifold to the
recommended back pressure.
23. Open (loosen) the inlet valve stem ½ turn to pressurize the sample to prevent
evaporation.
24. After heating for 60 minutes, increase the inlet pressure to 500 psi (3,448
kPa) greater than the back pressure.
25. Open (loosen) the outlet valve stem ½ turn to initiate ltration.
26. Set a timer for 7.7 minutes and a second timer for 30 minutes.
27. Monitor both the inlet and outlet pressure gauges for a pressure build up or
loss.
28. Collect ltrate by opening the needle valve (turning counter clockwise), but
only until there is a pressure drop.
29. Initially collect ltrate after about ten seconds. This ensures there is good
ltration control.
30. Collect ltrate after 1 minute and record the volume.
31. Collect ltrate after 7.5 minutes and record this amount (including the ltrate
collected previously).
32. Maintain the temperature to ± 5°F (±3°C) during ltration collection.
33. After 30 minutes, the test is over. Immediately close (tighten) both the inlet &
outlet valve stems on the cell.
34. Allow a minimum of 5 minutes for the ltrate to cool and collect ltrate by
opening the receiver needle valve.
35. Close the receiver needle valve.
36. Immediately close (tighten) both the inlet and outlet valve stems on the cell.
37. Loosen the dual manifold t-screws on both the inlet and outlet regulators.
38. Release the top pressure from the regulator by opening (loosening) the
needle valve on the inlet manifold block.
39. Release the bottom pressure from the regulator by opening the receiver
needle valve and collect any remaining ltrate.