OfiTE 174-00 User manual

Portable Roller Oven
174-00 (115 Volt)
174-00-1 (230 Volt)
Instruction Manual
Updated 12/7/2020
Ver. 4
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
Introduction.....................................................................................2
Description......................................................................................2
Components ...................................................................................3
Specications .................................................................................4
Safety...............................................................................................4
Operation.........................................................................................5
Timer Operation..............................................................................7
Maintenance....................................................................................9
Warranty and Return Policy ........................................................ 11
Table of
Contents

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2
The OFITE Roller Oven (U.S. Patent No. 4,677,843) is an e󰀨ective aid in
determining the e󰀨ects of temperature on drilling uid as it circulates through
the well bore. Aging the drilling uid in pressurized containers e󰀨ectively
demonstrates the thermal e󰀨ects on viscosity and how various additives
behave at elevated temperatures. Aging is done under conditions that vary
from static to dynamic and from ambient to highly elevated temperatures.
The Portable Roller Oven, with 3 rollers, can hold two 260 mL or two 500
mL Aging Cells and is specically designed for the eld. OFITE rollers are
variable-speed controlled (factory preset to 25.0 RPM) and constructed of
stainless steel for longer life and a cleaner environment inside the oven.
Glass-impregnated Teon® roller bearings extend the life of the rollers and
allow for longer maintenance-free service.
The Portable Roller Oven features a digital temperature controller that can
be read directly from outside the oven. The temperature is controlled by an
electronic solid-state thermostat and operates between 100°F and 450°F
(38°C – 232°C).
The OFITE Roller Ovens are designed to provide heating and rolling
functionality simultaneously or independently. Therefore, they can be put to
many practical uses, for instance:
1. Heating Mode Only:
- Drying Oven
- Aging Oven
- Baking Oven
2. Rolling Mode Only:
- Ball Mill Roller
- To make homogenous mixtures of liquids
- To make homogenous mixtures of powders
- To agitate chemicals into solutions
- To de-aerate liquids
Introduction
Description

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 3
Components #135-17 Switch Plate; Qty: 2
#140-60-04 E-Ring for Base Cap; Qty: 6
#163-26 Small Clip
#164-30 230V Power Receptacle
#165-14-8 Type “J” Thermocouple 1/8 " × 6"
#165-40 115V Power Cable
#165-40-1 230V Power Cable
#165-45 Red Neon Lamp
#165-45-1 Clear Neon Lamp
#165-47 115V Receptacle
#170-05 Thermostat
#171-44 ¾" Rubber Foot; Qty: 4
#172-02 Chain; Foot; Qty: 6
#172-03 Sprocket; Qty: 6
#172-04 Connecting Link for Chain; Qty: 3
#172-05 2-Amp Fuse for 230V Oven; Qty: Box of 5
#172-07 5-Amp Fuse for 115V Oven; Qty: Box of 5
#172-08 Bearing for Roller Shaft (Glass Impregnated Teon); Qty: 6
#172-13 Fuse Light Holder; Qty: 2
#172-14 On/O󰀨 Toggle Switch; Qty: 2
#172-20 150-Watt Heater; Qty: 2
#172-24 Solid State Relay; 240 Volt - 25 Amp
#174-03 Electronic Controller
#174-13 Motor
#174-14 Motor Controller
#174-19 Motor Bracket
#174-21 115/230 Voltage Converter Switch
#174-22 Mounting Plate for 115/230 Voltage Converter Switch
#174-23 10-Place Terminal Strip
Optional:
#175-46 O-ring for Outside of Aging Cell; Teon
#175-54 O-ring for Outside of Aging Cell; Buna N
#174-00-SP Spare Parts for One Year for #174-00 (115V)
#174-00-1-SP Spare Parts for One Year for #174-00-1 (230V):
#165-40 Power Cable (115V Only)
#165-40-1 Power Cable (230V Only)
#165-45 Red Neon Lamp
#165-45-1 Clear Neon Lamp
#172-02 1' Chain; Qty: 6
#172-03 Sprocket; Qty: 6
#172-04 Connecting Link for Chain; Qty: 3
#172-05 2-Amp Fuse for 230V Oven; Qty: Box of 5
#172-07 5-Amp Fuse for 115V Oven; Qty: Box of 5
#172-08 Bearing for Roller Shaft (Glass Impregnated Teon); Qty: 8
#172-13 Fuse Light Holder; Qty: 2
#172-20 150-Watt Heater; Qty: 2
#172-24 Solid State Relay; 240 Volt - 25 Amp; Qty: 2

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 4
Specications - 150-Watt Heater
- Temperature Range: 100 – 450°F (38 – 232°C)
- Digital Temperature Controller
- 25 RPM Motor
- Capacity:
- 260 mL Aging Cells: 2
- 500 mL Aging Cells: 2
- Crated Size: 25 × 22 × 11 inches (63.5 × 30.5 × 27.9 cm)
- Crated Weight: 53 lbs (24.1 kg)
The following aging cells are available from OFITE and are recommended for
use with the Roller Ovens:
#175-25 Aging Cell; Stainless Steel Grade 303, 260 mL, Pressurized
#175-30 Aging Cell; Stainless Steel Grade 303, 500 mL, Pressurized
#175-40 Corrosion Test Cell; Stainless Steel Grade 303, 500 mL
#175-50 Aging Cell; Stainless Steel Grade 316, 500 mL, Pressurized
Aging Cells can be very dangerous if handled improperly. Elevated
temperature and pressure within the cell can cause the contents to be
released with explosive force.
Always allow the cell to cool to ambient temperature before opening.
Always point the cell away from people and equipment when opening
the valve stems.
Do not overll the cell. Refer to the instruction manual for Aging Cells
#175-25, #175-30, #175-50 to determine the appropriate uid volume for
the test conditions.
Safety

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 5
Operation 1. To turn on the rollers, ip the “Roller” power switch to the “On” position.
The white indicator light will come on and the rollers will start turning.
2. To turn on the heaters, ip the “Heat” power switch to the “On” position.
The heaters and the red indicator light will come on.
The indicator light will pulsate on and o󰀨 as the temperature controller
maintains the desired heat.
Temperature
Controller
Fuse
Indicator Light
Power
HeatRoller
3. To adjust the temperature, push the up and down arrows on the
temperature controller.
The temperature will rise at approximately 150°F (65.5°C) per hour.
4. The oven can be preheated while the samples are being tested and
prepared. It is recommended that the samples be placed in the OFITE
Aging Cells for the oven tests. However, the cells for the HTHP Filter
Press (and various other containers) are often used.
Please refer to the Aging Cell documentation to determine the
appropriate uid volume for your test conditions.
If the aging cells are going to be rolled during a test, install o-rings
on the outer perimeter on the top and bottom of the cells. Failure to
do so can damage the rollers in the oven. Teon (#175-46) and Buna
N (#175-54) o-rings are available. For tests above 300°F (148.9°C),
use Teon only.
If for some reason the temperature controller fails, the safety thermostat
will cut power to the heater at 500°F (260°C).

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 6
Safety Thermostat
Make sure the safety thermostat is always turned completely clockwise. If
the thermostat is loose, the unit will not heat up.
5. To age without rolling, a folded shelf is provided for the containers to rest on.
6. The use of a pressurized adapter with a hose (170-20, 171-22 and 171-26
and FNPT to hose adapter) to direct any residual pressure to a sink is
recommended.
Be careful in handling hot aging cells. Do not open cells while hot or
under pressure. Properly bleed o󰀨 pressure and be sure the valve
stem is always pointed away from people or equipment.
Always wear personal safety equipment.
7. If the timer is not used, the heat switch must be manually turned “O󰀨”
after the sample has been heated to the required temperature for the
required time.
8. Allow the power switch to remain on until the oven and sample have
cooled down to handling temperature. The temperature controller will
indicate the oven temperature as long as the heat switch is in the “On”
position. For faster cooling, open the oven door.
Shelf

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 7
Timer
Operation
1. Press the “Up” or “Down” arrow and scroll to the desired temperature set
point.
2. Press the “Page” button twice. The display will read “SP”.
3. Press the “Scroll” button. The display will read “tm.OP”.
Page Scroll
4. Press the “Up” arrow and select one of the ve timer programs:
Opt. 1 - The oven will heat to the temperature set point before the timer
starts. When the timer times out, the controller will turn o󰀨 the
heater and the oven will cool. The controller will ash “END” to
signal that the timed program is complete.
Opt. 2 - The oven will heat to the temperature set point before the timer
starts. When the timer times out, the controller will ash “END”
and leave the heat on indenitely.
Opt. 3 - The oven will heat to the temperature set point while the timer is
running. When the timer times out, the controller will turn o󰀨 the
heater and the oven will cool. The controller will ash “END” to
signal that the timed program is complete.
Opt. 4 - The oven will heat to the temperature set point while the timer is
running. When the timer times out, the controller will ash “END”
and leave the heat on indenitely.
Opt. 5 - The heater will remain o󰀨 until after the timer times out. Then
the oven will heat to the temperature set point and remain there
indenitely.
5. Press the “Scroll” button. The display will read “tmr”. Use the “Up” arrow
to set the time (in minutes) that you want the timer program to run.
6. Press the “Page” button three times to return to the temperature display
screen. The timer program will now begin to run.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 8
7. When the timer has timed out, the controller will switch to standby mode.
The heater will either be turned o󰀨 or remain on, depending on the OPT
setting. The display will ash “END” or the “END” and “MAN” beacon
lights will turn on to indicate that the timer program is complete.
8. To exit out of the timer program:
a. If the display reads “END”, simultaneously press and hold the “Page”
and “Scroll” buttons for four seconds.
b. If the “END” and “MAN” beacon lights are both on, press the “Scroll”
button three times. The display will read “M-A”. Press the “Up” arrow
once. The display will read “AUTO”. Simultaneously press and hold
the “Page” and “Scroll” buttons for four seconds. This will return the
temperature controller back to the normal user mode.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 9
Maintenance 1. Your OFITE Portable Roller Oven has been preset at the factory to
operate at either 115V (174-00) or 230V (174-00-1). However, this
product is designed to be easily converted from 115V to 230V and vice
versa. To accomplish this:
Disconnect the unit from the power source before opening the unit
casing.
a. Remove the right-hand side panel (nearest the controls).
b. Remove the existing plug receptacle and replace it with the new one.
For 115V, use part no. 165-47. For 230V, use part no. 164-30.
Plug
Recepticle
Speed Control
Knob
Circuit Board
Voltage
Conversion
Switch
Speed Control
Knob
Voltage
Conversion
Switch