OfiTE 170-00-4S User manual

4-Unit HTHP Filter Press
With Load Cell Option
#170-00-4S - 115 VAC
#170-00-4S-230 - 230 VAC
#170-00-4S-LC Load Cell Option
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 .................................................................................2
Components ...................................................................................2
Safety...............................................................................................3
Setup................................................................................................4
Operation.........................................................................................5
Load Cell Option........................................................................... 11
Software Setup .........................................................................12
Calibration.................................................................................15
Appendix .......................................................................................16
Driver Install ..............................................................................16
Warranty and Return Policy ........................................................19
Table of
Content

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2
The OFITE 4-Unit HTHP Filter Press Heat Jacket is designed to hold four,
175-mL HTHP test cells for simultaneous testing. Each cell has a separate
temperature controller and two pressure regulators (drive pressure and back
pressure) for independent testing.
Maximum Temperature: 425°F (218.3°C)
Maximum Inlet Pressure: 2,000 PSI (13.8 MPa)
Maximum Drive Pressure: 1,350 PSI (9.3 MPa)
Maximum Back Pressure: 750 PSI (5.2 MPa)
Power Requirements: 115 VAC or 230 VAC congurations available (power
cord included)
Cell Size: 175 mL (Cells not included)
Included:
#120-05-005 Fuse Holder (230 Volt)
#120-05-005-1 Fuse Holder (115 Volt)
#120-70-1-052 Hose, Stainless Steel, 18"
#130-81-015 Relief Valve
#130-81-028 Regulator
#152-37 AC Power Cord (115 Volt)
#152-38 AC Power Cord (230 Volt)
#153-14 Graduated Cylinder, 50 mL × 1 mL, Glass
#170-06-1 Back Pressure Receiver
#170-07 O-ring for Receiver Body
#170-19 Filter Paper, Specially Hardened for Filter Presses, 2.5"
(6.35 cm) Diameter, Box of 100
#170-20 Manifold Block
#170-93 Wrench for Valve Stem
#171-45-7 Thermocouple
#171-23-1 Safety Pin with Lanyard
#174-03 Temperature Controller
Test Cells:
Test cells are not included with the instrument. The following 175 mL cells are
available.
#170-12-1 Test Cell for Filter Paper, 175 mL, Single Cap
#170-45 Test Cell with Cement Screens, 175 mL, Double Cap
#170-48 Test Cell for Ceramic Disks, 175 mL, Single Cap
#170-46 Test Cell for Ceramic Disks, 175 mL, Double Cap
Accessories:
#170-13-3 O-ring for Test Cell, Viton®/Fluorocarbon (FKM)
#170-16 Valve Stem
#170-17 O-ring for Valve Stem, Viton®/Fluorocarbon (FKM)
#170-26-1 Locking Screw, Hardened Alloy Steel
Intro
Specications
Components

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 3
Safety
Optional:
Load Cell Accessory Kit:
#170-00-4S-LC Load Cell Assembly; Qty: 4
#170-00-4S-013 4-Port USB Hub
Nitrogen must be supplied in an approved Nitrogen Gas Cylinder and
secured to meet safety standards.
Due to the high temperatures and pressures involved in this test, extreme
care must be exercised at all times. All safety precautions must be met,
especially in the cell breakdown procedure after the ltration procedure has
been completed.
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.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 4
Setup 1. Remove the instrument from the crate and place it on a at, stable
surface.
2. Turn off the Nitrogen valve (horizontal). Turn off both Main Power
switches and all four Heat switches. Make sure all regulators are backed
off completely. Turn them completely counterclockwise.
3. Connect a Nitrogen source to the back of the unit. The inlet connector is
¼" NPT.
4. On the back of the unit is a power inlet congured for 115 VAC or 230
VAC. Plug the supplied power cord into an appropriate power source.
- #170-00-4S: 115 VAC, 50/60 Hz
- #170-00-4S-230: 230 VAC, 50/60 Hz

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 5
Operation Although all four test cells share a single Nitrogen source, they each have
two regulators for adjusting drive pressure and back pressure. Each cell also
has a separate temperature controller.
There are two main power switches on the front of the instrument. The switch
on the left controls power to the two cells on the left. The switch on the right
controls power to the two cells on the right.
The valve on the front controls the ow of Nitrogen pressure to the regulators.
When the valve is horizontal, the pressure is turned on. When it is vertical,
the pressure is turned off.
1. Before starting a test, make sure the Nitrogen valve is off (vertical).
Turn off both Main Power switches and all four Heat switches. Make
sure all regulators are backed off completely. Turn them completely
counterclockwise.
2. Turn the Main Power switches on.
3. Press the up and down arrows on the temperature controller to set the
desired test temperature.
4. Turn the Heat switch on. Each cell has a separate Heat switch.
The light next to the cell will turn on when the heaters are engaged.
5. Be sure all of the o-rings are in good working condition (pliable with
no nicks or cuts, etc.), and are not damaged during the assembly
procedures. Place a thin lm of silicone grease on all o-rings.
Nitril-NBR (Buna N) o-rings (#170-13) are recommended for tests up to
250°F (121°C). For tests up to 400°F (204°C), Fluorocarbon/FKM (Viton®)
o-rings (#170-13-3) are recommended. For tests up to 500°F (260°C),
Peruorocarbon (FFKM) o-rings are recommended. Also, for tests with
water-based uids containing no hydrocarbons, Ethylene propylene
(EPM/EPDM) o-rings may be used up to 400°F (204°C).
Thermocouple
Hole
Power to Left Side Power to Right Side
Nitrogen Valve

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 6
6. Screw a valve stem into the test cell on the side opposite the cell cap.
Tighten the valve stem completely.
7. Prepare the sample according to API specications.
8. Carefully pour the sample into the cell. Do not ll the cell closer than 0.5"
(13 mm) from the o-ring groove to allow for heat expansion of the uid. Be
careful not to spill uid in the o-ring groove.
9. Place an o-ring in the o-ring groove inside the cell. Place another o-ring in
the recess in the cell cap.
10. Place a circle of lter paper on top of the cell o-ring and slowly push the
cell cap into the test cell. Make sure the arrow on the cell cap lines up
with the arrow on the cell body. Tighten the cap locking screws.
If the cap locking screw seats are oval shaped and no longer
round, there is a possibility of stress failure and the cap should be
replaced.
11. Screw another valve stem into the cell cap and tighten it completely. The
cell is now completely sealed.
12. Place the cell in the heating jacket with the outlet or lter side of the cell
pointed down. Rotate the cell in the heating jacket so that the pin in the
bottom of the heating well seats into the hole in the bottom of the cell.
This will anchor the cell inside the well and prevent the cell from rotating
as the valve stems are opened and closed.
13. Transfer the thermocouple from the heating jacket to the thermometer
well within the cell.
Locking Screws, Qty. 6
(#170-26-1)
Valve Stem, Qty. 2
(#170-16)
Cell Cap With Screen
(#170-14)
Allen Wrench 5/3 2 "
(#170-27)
Valve Stem O-ring, Qty. 4
(#170-17)
Cell Cap O-ring (#170-13-3)
Cell Body (#170-12-1)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 7
14. Connect the manifold block to the top valve stem and lock it in place with
the retainer pin. Place the back pressure receiver on the bottom valve
stem and lock it in place with the other retainer pin. Make sure both relief
valves and both valve stems are closed.
Relief Valve
(#170-32)
Manifold Block
(#170-20)
Valve Stem
(#170-16)
Retainer Pin
(#171-23-1)
Retainer Pin
(#171-23-1) Valve Stem
(#170-16)
Receiver Body
(#170-06-1)
Relief Valve
(#120-85-017)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 8
15. Turn the Nitrogen valve on.
16. Set the top and bottom regulators to the recommended back pressure for
your test.
This instrument is equipped with check valves between the regulators and
the pressure outlet to protect the regulators from backow. If you increase
the regulator pressure and then decrease it, there may be extra pressure
remaining in the lines.
The upper and lower limits of the test pressure differential are determined
by the test temperature. As this temperature exceeds 212°F (100°C), the
back pressure must be increased in order to prevent vaporization of the
ltrate. The 500 PSI differential pressure must be maintained, so the top
pressure will have to be increased accordingly. The table below shows
the pressures recommended for various test temperatures.
17. Open the top valve stem by turning it one quarter turn. This will add
pressure to the test cell. Maintain this pressure until the sample
temperature stabilizes. The heating time of the sample should never
exceed one hour.
18. When the uid sample reaches the desired test temperature, increase the
pressure on the top pressure unit to 500 PSI (3,448 kPa) more than the
back pressure. Open the bottom valve stem to initiate ltration.
19. Collect the ltrate for 30 minutes. If the back pressure rises above the
initial setting during the test, cautiously reduce the pressure by opening
the valve on the receiver and drawing off some of the ltrate into the
graduated cylinder.
Recommended Minimum Back Pressure
Test Temperature Vapor Pressure Minimum Back Pressure
°F °C psi kPa psi kPa
200-299 95-149 12.1-67 84-462 100 700
300-374 150-189 67-184 462-1269 200 1400
375-399 190-199 184-247 1269-1704 275 1900
400-424 200-219 247-326 1704-2245 350 2500
425-450 220-230 326-422 2245-2912 450 3100

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 9
20. At the end of the test, close (tighten) the top and bottom valve stems. This
will seal the cell.
Failure to close the valve stems before releasing pressure (step 22)
will damage a regulator by drawing uid into it.
21. Turn off the heat switch and set the temperature controller to the lowest
setting.
22. Open the outlet valve on the back pressure receiver to collect all of the
ltrate in the graduated cylinder. Open the relief valve on the manifold
block. This will ush the pressure lines and ensure no test uid has owed
back into them.
23. Slowly turn the regulators counterclockwise to close off the ow of
pressurized gas.
24. Remove the top and bottom retaining pins and remove the manifold block
and the back pressure receiver. Drain any residual ltrate collected in the
receiver into the graduated cylinder.
25. Remove the cell from the heating jacket after once again checking that
the cell valve stems are tightly closed. Allow it to cool to room temperature
or quick cool the cell by immersion in cool water.
Pressure inside the sample cell will still be approximately 500 PSI
(3,450 kPa). Keep the cell upright and cool it to room temperature
before disassembling. The cell must be cool for at least one hour
at room temperature or at least 10 minutes in cool water before
loosening the cap locking screws and removing the cell cap.
26. Correct the total ltrate volume collected to a standard ltration test
area of 7.1 in2(45.8 cm2) by doubling the ltrate volume collected in
30 minutes. Record this total ltrate volume (doubled), temperature,
pressure, and time.
27. Using extreme care to save the lter paper and deposited cake, place
the cooled cell upright with the outlet (cap side) or lter side down. Open
(loosen) the inlet valve stem to bleed off pressure from the cell body.
Pressure cannot be relieved from the cell by opening the outlet valve
stem as the lter cake will seal off the cell. It is a good idea to open
the valve stem with the cell inside a sink or with a rag over the valve
stem in order to catch any liquid that might be ejected.
28. Loosen, but do not remove, the six cap locking screws, and separate the
cap from the cell with a slight rocking motion. Discard the uid inside the
cell and retrieve the lter cake.