fann 686CS User manual

© 2016 Fann Instrument Company
Constant Speed Mixer, Model 686CS
Instruction Manual
Manual No. D00312132, Revision G
Instrument No. 101656308

Model 686CS Instruction Manual
D00312132 Revision G, February 2016 2
Constant Speed Mixer, Model 686CS Instruction Manual
©2016 Fann Instrument Company
Houston, Texas, USA
All rights reserved. No part of this work covered by the copyright hereon may be reproduced or
copied in any form or by any means (graphic, electronic, or mechanical) without first receiving the
written permission of Fann Instrument Company, Houston, Texas, USA.
Printed in USA.
The information contained in this document includes concepts, methods, and apparatus which may be
covered by U.S. Patents. Fann Instrument Company reserves the right to make improvements in
design, construction, and appearance of our products without prior notice.
FANN®and the FANN logo are registered trademarks of Fann Instrument Company in the United
States and/or other countries. All other trademarks mentioned in the operating instructions are the
exclusive property of the respective manufacturers.
Contact Fann Instrument Company
Phone
1-281-871-4482
1-800-347-0450
Fax
1-281-871-4358
Postal Address
Fann Instrument Company
P.O. Box 4350
Houston, Texas, 77210 USA
Shipping Address
Fann Instrument Company
14851 Milner Road, Gate 5
Houston, Texas, 77032, USA
Online
www.fann.com

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Table of Contents
1 Introduction...............................................................................................................6
1.1 Document Conventions ....................................................................................7
2 Safety .......................................................................................................................8
3 Features and Specifications......................................................................................9
3.1 Mechanical Features ......................................................................................10
3.2 Control Features.............................................................................................10
4 Installation ..............................................................................................................12
5 Operation................................................................................................................13
5.1 Key Functions.................................................................................................14
5.2 Basic Operating Instructions...........................................................................15
5.3 Profile Programming Instructions....................................................................16
5.4 Preprogrammed Profile...................................................................................18
5.5 USB Remote Control......................................................................................18
5.6 Basic Mixing Instructions ................................................................................19
6 Test Analysis..........................................................................................................20
7 Troubleshooting and Maintenance..........................................................................21
8 Accessories............................................................................................................22
9 Parts List.................................................................................................................23
10 Warranty and Returns.............................................................................................24
10.1 Warranty.........................................................................................................24
10.2 Returns...........................................................................................................24

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List of Figures
Figure 3-1 Constant Speed Mixer, Model 686CS ............................................................9
Figure 3-2 Model 686CS Control Panel.........................................................................11
Figure 5-1 Blade Assembly ...........................................................................................13
Figure 5-2 Remote Control............................................................................................18

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List of Tables
Table 3-1 Constant Speed Mixer, Model 686CS Specifications.......................................9
Table 8-1 Optional Accessories for the Model 686CS Mixer..........................................22
Table 9-1 Parts List for the Model 686CS Mixer............................................................23
Table 9-2 Waring Blade Assembly Model 686CS Mixer ................................................23

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1 Introduction
The Fann Constant Speed Mixer, Model 686CS is designed to mix cements to
comply with American Petroleum Institute (API) specifications and recommended
practices.
As deeper wells are being drilled, heavier weight cements are needed to withstand
higher downhole pressures. The Model 686CS has a heavy-duty motor that can
handle thicker cements at the proper speed.The mixer has control buttons that the
operator can use to program the proper mixing speeds and times. One control
button, the API Profile button is preprogrammed with the API standard settings,
12,000 rpm for 35 seconds. These programming features save the operator time.
For specification details, refer to the following API documents:
•API Recommended Practice for Testing Well Cements, API RP 10B-2
•API Specification for Cements and Materials for Well Cementing,
API Spec 10A

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1.1 Document Conventions
The following icons are used as necessary in this instruction manual.
NOTE.Notes emphasize additional information that may be
useful to the reader.
CAUTION. Describes a situation or practice that requires operator
awareness or action in order to avoid undesirable consequences.
MANDATORY ACTION. Gives directions that, if not observed,
could result in loss of data or in damage to equipment.
WARNING! Describes an unsafe condition or practice that if not
corrected, could result in personal injury or threat to health.
ELECTRICITY WARNING! Alerts the operator that there is risk of
electric shock.
HOT SURFACE! Alerts the operator that there is a hot surface and
that there is risk of getting burned if the surface is touched.

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2 Safety
This blender is similar to any mixing blender and does not present any unusual
hazards.
Follow these recommended safety practices:
1. The operator should always wear safety glasses in case the mixture splatters
when adding ingredients.
2. The operator should not drop any foreign objects in the container while mixing
is occurring. These foreign objects could strike the operator or damage the
mixing blades and container.
3. The Model 686CS should be plugged in to a properly grounded outlet with the
ground prong in place.
4. Do not use extension cords.
5. Always remove the plug from the receptacle before performing any work on the
mixer base.
6. Do not immerse the mixer in any fluid or spray it with any fluids.
7. The blender should be at a comfortable height for the operator. The operator
should be able to add ingredients without straining to reach the mixer. Also, the
mixer should be close enough to shut it off quickly if necessary.
8. The mixing cup should be cleaned thoroughly after use to prevent the buildup
of cement or other deposits. These deposits can cause accelerated wear of
components. The mixing blades should be checked daily for damage. Damaged
or worn blades should be replaced immediately.

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3 Features and Specifications
This unit is based on a standard, heavy-duty mixing blender manufactured by
Waring. It is specially designed to comply with API standards and to allow
automatic programming of some mixing procedures. The mixer comes with a
remote control for optional use.
Table 3-1 Constant Speed Mixer, Model 686CS Specifications
Category
Specification
Speed Range
1,000 to 28,000 rpm
Container with lid
32 oz (946 mL) stainless steel container
Dimensions (Width x Depth x Height)
11 x 10 x 16 inches
28 x 25 x 41 centimeters
Weight
17 lb (7.7 kg)
Power Supply
120 V, Frequency 50/60 Hz,
Current 13 amps
Figure 3-1 Constant Speed Mixer, Model 686CS

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3.1 Mechanical Features
The Constant Speed Mixer (CSM) is equipped with a 32 ounce (946 mL) stainless
steel jar.
An additional 64 ounce (1.9 liter) stainless steel container is also available and can
be ordered separately.
Both stainless steel containers (32 or 64 ounces) fit directly onto
the mixer base. Adapters are not required.
3.2 Control Features
The Model 686CS Mixer has a liquid crystal display (LCD) screen that shows the
operating messages on a sharp, blue backlight, making it easy to read.
The mixer has programming features that can be set up using these buttons:
•Set Button- for programming profiles and mixer settings
•Profile Buttons – for executing a previously programmed profile
•API Button – to use preprogrammed API standard setting
The mixer also has these control features for easy operation:
•Power on/Off Button
•Start/Stop Button
•Speed Controls
•Time Controls
Figure 3-2 shows the control panel. How to use each key (button) is explained in
section 5.1.

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Figure 3-2 Model 686CS Control Panel
API Button
Profile Buttons
Set Button

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4 Installation
The mixer should be placed on a countertop at a suitable height for the operator to
add ingredients. The operator should be able to easily reach the control panel and
view the display.
This mixer requires 120 VAC, 50-60 Hz. If the power source is
240 VAC, a step down transformer (Part Number 101553700)
must be used and ordered separately.

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5.1 Key Functions
Do NOT operate this mixer empty or without the container or
mixing cup.
Power On/Off Button — Press this button to turn the mixer on and off.
When the unit is turned on, the blue LCD backlight will illuminate and
the machine is ready for operating. To turn off the machine, press and
hold this button three seconds or more.
Start/Stop Button — Press this button once and the machine will start
mixing. Press this button again and the machine will stop.
Speed Controls — Each press increases or decreases the set mixing
speed in 100 rpm increments. The speed range for this mixer is 1000 to
28,000 rpm.
Time Controls — Gradually increase and decrease timing in seconds
(sec) increment. The maximum time setting is 240 seconds. A setting of
999 seconds means that the machine will run at set speed continuously
until user stops it.
Set Button — This button is used for programming profiles and
machine settings.
Profile Buttons — Pressing any of these buttons will start the mixing
and execute a previously programmed profile.
API Button — This button is preprogrammed with API standard
settings, 12,000 rpm and 35 sec. These settings cannot be changed by the
user.

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5.2 Basic Operating Instructions
1. Plug the power cord into an AC outlet. Press the ON/OFF button to turn the
unit ON. The blue LCD backlight will turn on and the words, FANN
Instrument Model 686CS will appear, indicating that the power is ON. After a
few seconds, the machine enters the operational mode.
The default SPEED (RPM) and TIME settings are the last values
when the machine was turned off.
2. The motor speed can be adjusted by pressing UP (+) and DOWN (-) SPEED
buttons.
3. The run time can be adjusted by pressing UP (+) and DOWN (-) TIME
buttons. A value of zero (0) indicates the machine will mix indefinitely until the
user manually stops the mixing.
4. Press the START/STOP button to run the mixer. The LCD will display the
motor’s rpm and time remaining. The machine does not start counting time
until the set speed is reached. To stop mixing operation, press the
START/STOP button.
Pressing the SPEED UP (+) or DOWN (-) buttons while mixer is
running will change the speed to a new value, but will not change
the timer.

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5.3 Profile Programming Instructions
There are two programmable profiles for easy operation and consistent results.
Each profile can be programmed with five different speeds, running times, and
acceleration.
For example, the Profile 1 (P1) can be set as follows:
Profile 1 (P1)
Step 1: RPM 4000, TIME 15 sec, ACCEL 2000
Step 2: RPM 6000, TIME 20 sec, ACCEL 5000
Step 3: RPM 8000, TIME 25 sec, ACCEL 0
Step 4: RPM 10000, TIME 30 sec, ACCEL 0
Step 5: RPM 12000, TIME 35 sec, ACCEL 12,000
The acceleration setting determines how quickly the mixer reaches the desired
speed. The lower the acceleration setting, the longer it will take to reach the desired
speed.
Acceleration values can be changed from 500 to 20,000 rpm/sec.
Setting a value of 1000 rpm means the mixer will ramp up to the desired speed at a
rate of 1000 rpm/sec.
The minimum acceleration is 500 rpm/sec and the maximum acceleration is 20,000
rpm/sec.
Setting the acceleration value to 0 will apply these default acceleration (ACCEL)
values:
Acceleration Settings
•ACCEL = 3000 rpm/sec, when SPEED = 1000-5000 rpm
•ACCEL = 7000 rpm/sec, when SPEED = 5000-9000 rpm
•ACCEL = 10,000 rpm/sec, when SPEED = 9000-14,000 rpm
•ACCEL = 12,000 rpm/sec, when SPEED = 14,000-28,000 rpm

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To program a profile, follow these instructions:
1. Press SET.
2. Select P1 or P2 depending on which profile needs to be programmed or press
SET to exit.
3. In profile editing mode, the top right corner of the display will show the step
number – S1, S2, etc. When display reads, “SET RPM,” press the TIME +/-
keys to set value for the current parameter.
4. Next, press the SPEED +/-keys to go to the next parameter in this step.
5. When display reads, “SET TIME,” press the TIME +/-keys to set the time.
6. Press the SPEED +/-keys to go to the next parameter.
7. When the display reads, “SET ACCEL,” press the TIME +/-keys to set the
value.
8. Press the SPEED +/-keys to go to the next step.
9. Repeat instructions 3-8 to set values for parameters in the next step.
If any step has speed value equal to zero (0), it becomes the last
step of the profile.
When editing profiles, use the SPEED +/-keys to move between
steps and parameters of the step.
When editing profiles, use the TIME +/-keys to set the values of
the parameters in each step.

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5.4 Preprogrammed Profile
To run any of the preprogrammed profiles, press a desired profile button to start the
machine. The motor will run at the preset speed within the preset mixing time. The
LCD will show the time remaining. Once the mixer counts down to zero (0), the
machine will proceed to the next step. If the time for the last step was not specified,
the mixer will continuously run until the START/STOP button is pressed.
5.5 USB Remote Control
The remote control is powered through the USB port on the mixer.
Plug the remote control into the mixer using the USB-B cable supplied with the
unit. The remote control LCD display should then be visible.
The remote control buttons are shown in Figure 5-2. The user must select SPEED
followed by either the +or –buttons to adjust the mixing speed. Likewise, to adjust
the mixing time, the user must select TIME followed by either the +or –buttons.
Figure 5-2 Remote Control

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5.6 Basic Mixing Instructions
The blender should not be operated without any contents in the
mixing cup.
Always install the mixing blades so that the blade tips curve
upward and the beveled edges are visible. See Figure 5-1.
To mix cement slurry in the Constant Speed Mixer, follow these steps:
1. Fill the 32-oz or 64-oz container to the proper level with fluid.
2. Weigh and prepare the dry constituents. Place these additives where they can
be quickly added during the mixing phase.
3. Press P1 on the control panel and watch the display for speed.
4. When the speed reaches 4000 RPM, quickly add the dry ingredients as
described in the API specification. The mixer will begin counting down to 15
seconds when the 4000 RPM speed is achieved.
5. After the 15-second mixing step is complete, press the button labeled 12000 35
sec. The mixer will accelerate to 12,000 RPM. When the speed stabilizes at
12,000 RPM, the blender will count up to 35 seconds. The mixer will then slow
down and stop. Do not remove the mixer container until the display shows 0
RPM and the fluid stops swirling. The cement sample is now ready for testing.
If you are experimenting with additives that are harder to mix, you can manually
operate the blender at any speed and time setting before pressing the API button. If
alternate speeds are desired, they can be programmed into profiles P1 and P2.

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6 Test Analysis
The Constant Speed Mixer produces no results to be analyzed.
This mixer complies with API Spec 10A, Cements and Materials for Well
Cementing and API RP 10B-2, Recommended Practice for Testing Well Cements.
Table of contents