OfiTE 120-60, 120-60-1, 120-60-F, 120-60-1-F Instruction Manual

Model 20 Constant Speed Blender

120-60: For Cement, 115 Volt

120-60-1: For Cement, 230 Volt

120-60-F: For Fracturing Fluids, 115 Volt

120-60-1-F: For Fracturing Fluids, 230 Volt

Instruction Manual

11302 Steeplecrest Dr. · Houston, Texas · 77065 · U.S.A.

Tele: 832.320.7300 · Fax: [phone] · www.ote.com

Updated 11/16/2015

Ver. 5.0

OFI Testing Equipment, Inc.

©

Copyright OFITE 2015

Table of

Intro..................................................................................................2

Description ...................................................................................... 2

Contents

Specications .................................................................................3

Components ...................................................................................3

Installation.......................................................................................7

Operation.........................................................................................8

Manual Mode ..............................................................................8

Variable Mode .............................................................................9

Auto Mode ................................................................................... 9

Timer ......................................................................................... 10

Speed Controller .......................................................................10

PID Parameters ........................................................................ 11

Warranty and Return Policy ........................................................12

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 1

Intro

OFITE’s Model 20 Constant Speed Blender was designed to prepare well

cements for testing according to the guidelines stated within API Specication

10. Research has demonstrated that the properties of well cements are
highly dependent upon mixing procedures. In addition, studies have indicated
that when constant speed blenders/mixers are used, data obtained from
thickening time tests has greater reproducibility and generally correlates
better with data obtained from other laboratories. The Model 20 was designed
to provide a means of consistently preparing cement slurries for testing
purposes and can be utilized to mix cements according to the procedures
stated by the API.

Description

The proper amount of mix water is carefully weighed and poured into the
mixing container of the blender. The rotational speed is set to 4,000 RPM
and allowed to stabilize at this speed. The “TIMER” switch is pressed and
the cement is immediately added to the mix water. The cement should be
uniformly added to the water in less than 15 seconds. After 15 seconds the
rotational speed is automatically increased to 12,000 RPM and the slurry is
mixed an additional 35 seconds. A microprocessor is utilized to maintain the
rotational speed within the recommendations established by the API and is

independent of uctuations in line voltage and the viscosity of the cement

slurry.

The 120-60-F Constant Speed Blender is intended for testing Fracturing
Fluids. The rotational speeds are set to 500 and 1,000 RPM respectively.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2

Components

#122-074 Fuse, 4 Amp, 5 mm × 20 mm (230 Volt Only)
#122-074-1 Fuse, 5 Amp, 5 mm × 20 mm (230 Volt Only)
#122-075 Fuse, 7 Amp, 5 mm × 20 mm (115 Volt Only)
#122-077 Fuse, 10 Amp, 5 mm × 20 mm (115 Volt Only)
#122-200 Hardened Blade Assemblies
#122-202 Container, Stainless Steel
#122-203 Container Lid
#122-204 Bottom Gasket
#122-209 Waring Blender® 230 V with Exciter Gear and Pickup Cable
#122-210 Waring Blender® 115 V with Exciter Gear and Pickup Cable
#152-34 Container, Glass (For Fracturing Fluids)
#164-42 Male Connector for Power Cable (230 Volt Only)

Optional:

#120-61 Spare Parts Kit, 115 Volt

#122-075 Fuse, 7 Amp, 5 mm × 20 mm (115 Volt Only), Qty: 4
#122-077 Fuse, 10 Amp, 5 mm × 20 mm (115 Volt Only), Qty: 4
#122-200 Blending Assembly / Square Drive, 1 qt., Qty: 12
#122-202 Stainless Steel Container, 1 qt.
#122-203 Container Lid, 1 qt.
#122-204 Bottom Gasket, Qty: 6

Specications

#120-61-1 Spare Parts Kit, 230 Volt

#122-074 Fuse, 4 Amp, 5 mm × 20 mm, Qty: 4
#122-074-1 Fuse, 5 Amp, 5 mm × 20 mm, Qty: 4
#122-200 Blending Assembly / Square Drive, 1 qt., Qty: 12
#122-202 Stainless Steel Container, 1 qt.
#122-203 Container Lid, 1 qt.
#122-204 Bottom Gasket, Qty: 6

- Hardened stainless steel mixing blades

- Stainless steel 1-liter mixing container

- Two preset mixing speeds and variable speed

- Maximum Speed for Cement Testing (120-60 / 120-60-1): 16,000 RPM

- Maximum Speed for Fracturing Fluid Testing (120-60-F / 120-60-1-F):
5,000 RPM

- Rotational speed is maintained at setpoint with microprocessor

- Timing relays automatically control mixing times at required RPM

- Digital instrumentation provides excellent readability

- Crated Size: 45" × 32" × 12" (114 × 81 × 31 cm)

- Crated Weight: Approximately 75 pounds (34.1 kg)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 3