Recording Atmospheric
Consistometer
Part No. 120-80 (115V)
Part No. 120-80-1 (220V)
Instruction Manual
Updated 12/10/2015
Ver. 3.0
OFI Testing Equipment, Inc.
11302 Steeplecrest Dr. · Houston, Texas · 77065 · U.S.A.
Tele: 832.320.7300 · Fax: 713.880.9886 · www.ofite.com
Copyright OFITE 2015
©
Table of
Contents
Intro..................................................................................................2
Description.......................................................................................2
Features...........................................................................................2
Requirements..................................................................................2
Components....................................................................................3
Installation.......................................................................................5
Setup................................................................................................6
Chart Recorder............................................................................6
Loading the Test Cells..................................................................9
Operation ...................................................................................... 11
Testing........................................................................................ 11
Chart Recorder..........................................................................13
Maintenance...................................................................................15
Calibration......................................................................................17
Warranty and Return Policy.........................................................18
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
1
Intro
The Model 80 Atmospheric Consistometer is designed to condition cement
slurries as specified within API Specification 10. Determination of rheological
properties, examination of free water content, and evaluation of the API fluid
loss test all require that the cement slurry be conditioned by an atmospheric
consistometer. The OFITE Model 80 was specifically developed to perform
these duties.
Description
A cement slurry is prepared according to the procedure outlined in the
API Specification 10 and then placed in the slurry containers of the
Model 80 Atmospheric Consistometer. The slurry is stirred at 150 RPM
by an API-designed paddle assembly. The temperature is controlled by
a microprocessor, which displays the process temperature via a digital
indicator. Consistency, measured in Bearden Units of Consistency, is
determined by measuring the deflection of a calibrated spring. This deflection
is created by the amount of torque that the cement slurry exerts on the
paddle, which is a function of the consistency of the cement. The API defines
100 Bc as 2,080 g-cm of torque.
Features
-----------------
Electronic chart recorder displays real-time data
Maximum Operating Temperature: 190°F (90°C)
Microprocessor temperature controller with digital display
Unit operates at atmospheric pressure
Heat transfer fluid is circulated
1,500-Watt Heater
Slurry container rotational speed is 150 RPM
Dual sample container design
Two alarms indicate termination of the test
Cooling coils
Stainless steel temperature bath
Deadweight calibration unit
Size: 30 × 16 × 18 inches (76.2 × 40.6 × 45.7 cm)
Weight: 105 lbs. (47.7 kg)
Crated Size: 23 × 20 × 22 inches (58.4 × 50.8 × 55.9 cm)
Crated Weight: 170 lbs. (77.2 kg)
Requirements
-----
Water Supply for Cooling
Water Drain
220 Volt, 50/60 Hz, 2.2 KVA Power Source
120 Volt, 50/60 Hz, 4.4 KVA Power Source
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Components
#120-001
#120-60-2
#120-60-4
#120-60-5
#120-60-8
#120-60-9
#120-60-10
#120-60-30
#120-75-3
#120-75-5
#120-75-7
#120-75-8
#120-75-9
#120-75-10
#120-75-11
#120-75-13
#120-75-14
#120-75-15
#120-75-16
#120-80-4
#120-80-5
#121-002
#121-003
#121-007
#121-008
#121-009
#121-013
#121-014
#170-44
#172-24
#174-13
#174-14
Mineral Oil; 1 Gallon; Qty: 3
Frame Corner; Qty: 24
Frame Bracket Catch Lip; Qty: 4
Frame Extrusion; Qty: 2
Frame Bracket; Qty: 4
Frame Screw; Qty: 75
¼ Turn Frame Fastener; Qty: 6
Tubing; ¼ OD × .035 Wall; Qty: 10
Water Solenoid Valve; 240V
Contactor; 230V
Pulley Bushing
Motor Timing Pulley
Weight Hanger
Slotted Weight Set
Shear Pin Assembly
Agitator Shaft
Upper Cross Bar
Lower Cross Bar
Calibration Stand
Temperature Controller
Graphic Recorder
Retaining Ring; Qty: 2
Paddle Assembly; Qty: 2
Rotator Thrust Bearing; Qty: 2
Thermocouple
Timing Belt
Slurry Container; Qty: 2
Container Bottom; Qty: 2
½" Rubber Foot; Qty: 4
Solid State Relay; 240V; 25A
Motor
Motor Controller
#120-80 Recording Atmospheric Consistometer (115V):
#121-010
Heater (115V)
#120-80-1 Recording Atmospheric Consistometer (220V):
#121-010-1 Heater (230V)
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Optional:
#120-82 Spare Parts for One Year for 120-80 (115V):
#120-602
Calibration Spring
#120-604
Potentiometer Resistor; Qty: 4
#121-001
Container O-ring; Qty: 8
#121-002
Retaining Ring; Qty: 2
#121-003
Paddle Assembly; Qty: 2
#121-006
Shear Pin; Qty: 10
#121-007
Rotator Thrust Bearing; Qty: 2
#121-008
Thermocouple
#121-009
Timing Belt; Qty: 2
#121-010
Heater (115V)
#121-013
Slurry Container
#121-014
Container Bottom; Qty: 2
#122-073
2-Amp Fuse; 5 mm × 20 mm; Qty: 6
#122-074
4-Amp Fuse; 5 mm × 20 mm; Qty: 6
#122-077
10-Amp Fuse; 5 mm × 20 mm; Qty: 6
#120-83 Spare Parts for One Year for 120-80-1 (220V):
#120-602
Calibration Spring
#120-604
Potentiometer Resistor; Qty: 4
#121-001
Container O-ring; Qty: 8
#121-002
Retaining Ring; Qty: 2
#121-003
Paddle Assembly; Qty: 2
#121-006
Shear Pin; Qty: 10
#121-007
Rotator Thrust Bearing; Qty: 2
#121-008
Thermocouple
#121-009
Timing Belt; Qty: 2
#121-010-1 Heater (220V)
#121-013
Slurry Container
#121-014
Container Bottom; Qty: 2
#122-072
1-Amp Fuse; 5 mm × 20 mm; Qty: 6
#122-073
2-Amp Fuse; 5 mm × 20 mm; Qty: 6
#122-075
7-Amp Fuse; 5 mm × 20 mm; Qty: 6
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Installation
1. Carefully remove the unit from the crate and place it close to a water
supply and drain.
2. Water supply and drain lines are ¼" NPT tube connections. Connect the
water supply port to a 40 PSI (275.8 kPa) water source. The water drain
is the port located near the middle of the lower back instrument panel.
3. Fill the bath with enough mineral oil (or water) to submerge the slurry
containers at least half way.
Do not overfill the bath.
4. Connect the unit to a grounded and fused (20-Amp for 115V; 10-Amp for
220V) electrical supply.
5. The rotational speed of the unit may need to be adjusted periodically.
a. Turn on the electrical power and start the motor.
Make sure the Alarm switches are turned off. If the alarms switches
are on when the power is turned on, the alarms will sound until the
chart recorder starts completely.
b. Measure the rotational speed of the rotators with a hand held
tachometer. The rotational speed should be 150 RPM ± 15.
c. If adjustment is required, loosen the three screws on the back panel
of the unit and open the door. Directly to the right of the motor is the
motor speed controller.
d. To increase the rotational speed, turn the speed control potentiometer
clockwise. Turn it counterclockwise to reduce the speed.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
5
Setup
Chart Recorder
The OFITE Recording Atmospheric Consistometer includes a Eurotherm
Chessell 6100V chart recorder for displaying and recording test data. It
features a removable Compact Flash drive for easily transferring test data to
a PC for processing. The unit is setup to automatically record data onto the
disk during the test. However, for this feature to work, you must have the disk
inserted into the drive when the unit is powered on. Otherwise, the data must
be manually archived at the end of the test.
Eject Button
Recorder Disk
It is strongly recommended that you carefully study the Eurotherm
Chessell 6100V instruction manual before using this equipment.
To manually archive test data:
1. Press the “Root Menu” button.
Root Menu
Button
2. Press “Operator” from the root menu.
3. At the top of the screen, choose “Archive”
and then choose “Local”.
4. Make sure the Media field is set to
“mediacard”.
5. Now choose the data you wish to archive
and press the appropriate button.
When the archive process starts, you will see a blinking green light at
the top, right-hand side of the screen. When this light stops blinking, the
archive process is complete.
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To transfer the test data to a PC:
1. Remove the disk from the chart recorder and insert it into the appropriate
drive on the PC.
2. From the Start Menu, select “Programs” then “Eurotherm” and then click
“Review”. This will open the Eurotherm Review software application.
3. From the “File” menu, select “Transfer” and then click “Files”.
4. Click the “Browse” button, then choose the appropriate drive for your
removable media. Open the “History” folder and select the files you wish
to transfer.
5. Type a name in the “Name” field and click “OK”.
At this point you will receive a warning message. Click “OK” again.
6. When the file transfer is complete, go to the “File” menu and click “New
Chart”.
7. Click “Add Point”.
8. From the “Instrument” drop-down menu, choose the name you selected in
step 5.
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9. Choose “Group 1” from the “Log Group” menu.
10. Now, select the Point IDs you wish to display on the chart. Hold down the
“CTRL” button to select more than one. Click “OK”.
11. The software will now create the chart based on the data collected from
the test.
12. To jump directly to a specific data point, click
the “Go To” button at the top of the screen.
Choose the data point you wish to view and
click “OK”.
Go To
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Setup
Loading the Test Cells
1. Prepare the cement slurry as specified in API Specification 10.
2. Cover the paddle surface with a light coating of grease. This will facilitate
cleaning after the test is complete.
3. Pour the cement slurry into the test cell.
4. Insert the paddle into the test cell. Make sure the point on the end of the
paddle is inserted into the hole in the bottom of the test cell.
5. Place the lid on the test cell by sliding the torque shaft over the end of the
paddle. Turn the lid clockwise until the pin in the torque shaft engages
with the slot in the paddle shaft.
6. Lock the lid in place on top of the test cell.
Torque Shaft
Locking Pins
Locking Pin
Locking Pin
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7. Lower the test cell into the bath and lock it in place with the locking pins.
8. Plug the potentiometer cables into the corresponding ports on the unit
cabinet.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Operation
Testing
The OFITE Recording Atmospheric Consistometer performs two functions. It
can be used to condition a cement slurry or to perform a thickening time test
as detailed in API Specification 10.
When performing a thickening time test, the unit will stir and heat the sample
until it reaches the specified consistency. When the test is complete, an
audible alarm will sound for 30 seconds to alert the operator.
To condition a cement slurry, the unit will run for 20 minutes and then sound
an audible alarm for 30 seconds.
1. Turn the “Main”, “Heat”, “15 VDC”, and “Chart” switches on.
2. Set the appropriate temperature on the temperature controller.
Actual Temperature
Temperature Setpoint
Set Temperature
Temperature Controller
3. Load one or both test cells. Refer to “Setup - Loading the Test Cells” on
page 9 for details.
It is very important that you begin the test within one minute of
mixing the cement slurry.
4. Turn the “Motor” switch on.
5. Create and start data batches on the chart recorder. Refer to “Operation Chart Recorder” on page 13 for details.
6. Turn both “Alarm” switches on. If you are only using one test cell, turn on
the “Alarm” switch for that cell only.
7. Press both “Condition/Test” buttons. If you are only using one test cell,
push the button for that cell only.
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8. When the test or conditioning is complete, an alarm will sound for 30
seconds and the chart recorder will stop the batch. Turn off the “Alarm”
switch to stop the alarm.
9. Turn the “Heat”, “15 VDC”, and “Motor” switches off.
10. Immediately remove the test cells and thoroughly clean them with soap
and water. Be sure to remove any residual cement.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Operation
Chart Recorder
The chart recorder in the OFITE Recording Atmospheric Consistometer
records data in batch form during a test or condition cycle. You should
start a new batch before each cycle. If you do not, the chart recorder will
automatically use the name of the previous batch to store the new test data.
1. Press the “Root Button” and select “Goto Group”.
2. Select a group:
TEST CHN 2:
COND CHN 2:
TEST CHN 3:
COND CHN 3:
Group 5:
Group 6:
To perform a test on the left-hand test cell
To condition the left-hand test cell
To perform a test on the right-hand test cell
To condition the right-hand test cell
Not used
Not used
3. The current group will be displayed near the top left corner of the screen.
Press this button to control the batch process.
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4. Press the “New” button to begin a new batch.
5. Enter a batch number and customer information in the appropriate boxes.
6. Press the “Store” button to save the batch name. Now, when you press
the “Test / Condition” button, a batch with the name you just entered will
be started automatically.
7. To stop a batch, press the group button at the top of the screen.
8. Press the stop button.
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Maintenance
1. The belt and thrust bearings that drive the rotators should be inspected
periodically. To disassemble the unit to access the bearings and belt:
a. Disconnect the unit from all electrical power.
b. Remove the back protective cover plate.
c. Loosen the screws on the motor mount and push the motor forward.
d. Release the belt from the motor timing sprocket.
e. Remove the upper cover plate and set it on blocks or on a bucket to
prevent damage to the agitator shaft.
f.
Loosen the four screws allowing the top plate to be removed from the
bearing housing.
g. Pull out the rotator and examine the thrust bearings for damage and
wear. Periodically clean the bearings by lightly spraying them with
WD-40. If they do not turn freely and smoothly, replace them with new
bearings.
h. Inspect the belt for damage or wear. If necessary, replace it with a
new belt.
i.
Re-assemble the unit, pushing the belt through the bath slot.
j.
Pull the motor back only enough to prevent belt slippage. Allow
approximately ¾" to 1" slack in the timing belt to prevent excessive
side thrust to the bearings.
Belt
Bearing Agitator Shaft
Rotor
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2. The bath should be checked and cleaned annually.
a. Access the bath housing as described in steps a – f on the previous
page.
b. Visually inspect the mineral oil in the bath. If it contains any foreign
material, pour out the entire contents and refill with clean mineral oil.
3. Containers and paddles should be kept as clean as possible. A light
coating of grease on these components will facilitate cement removal.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Calibration
Calibrating the torque head provides a reference point for interpreting test
results. The calibration kit provided uses dead weight to simulate resistance
on the torque head. To calibrate, four different weights are applied and the
corresponding chart recorder readings are recorded. During operation,
compare the chart recorder reading to those recorded during calibration to
determine the amount of resistance being put on the torque head.
Before calibrating the torque head, test the container paddle for excessive
friction by running the sample container without any cement slurry in it. If
the paddle is bent and rubbing on the side of the sample container or if the
bearings are damaged, excessive friction will show on the dial. Correct any
defects before calibrating the torque head.
Calibration instructions are described in API-RP-10-B. Your instrument is
equipped with an instrument-mounted calibration unit.
1. Place the torque head onto the calibration stand.
2. Place the cap (marked 2 on the left or marked 3 on the right) onto the
torque head and wrap the calibration string around the cap.
3. Wrap the deadweight calibration cord counterclockwise around the
calibration ring and over the roller.
4. Place 400 g on the weight hanger and attach it to the calibration cord.
When adding weights, remember that the hook weighs 50 grams.
Therefore, to test the potentiometer at 200 g, you only need to add
150 g to the hook.
5. Pull the weight down several times to obtain an average reading.
6. Repeat this process with 100 g, 200 g, and 300 g. Record each
weight and the corresponding reading. These values will help you
interpret the potentiometer readings.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Warranty and
Return Policy
Warranty:
OFI Testing Equipment, Inc. (OFITE) warrants that the products shall be free from liens and defects in
title, and shall conform in all respects to the terms of the sales order and the specifications applicable to
the products. All products shall be furnished subject to OFITE’s standard manufacturing variations and
practices. Unless the warranty period is otherwise extended in writing, the following warranty shall apply:
if, at any time prior to twelve (12) months from the date of invoice, the products, or any part thereof, do
not conform to these warranties or to the specifications applicable thereto, and OFITE is so notified in
writing upon discovery, OFITE shall promptly repair or replace the defective products. Notwithstanding
the foregoing, OFITE’s warranty obligations shall not extend to any use by the buyer of the products in
conditions more severe than OFITE’s recommendations, nor to any defects which were visually observable
by the buyer but which are not promptly brought to OFITE’s attention.
In the event that the buyer has purchased installation and commissioning services on applicable products,
the above warranty shall extend for an additional period of twelve (12) months from the date of the original
warranty expiration for such products.
In the event that OFITE is requested to provide customized research and development for the buyer,
OFITE shall use its best efforts but makes no guarantees to the buyer that any products will be provided.
OFITE makes no other warranties or guarantees to the buyer, either express or implied, and the warranties
provided in this clause shall be exclusive of any other warranties including ANY IMPLIED OR STATUTORY
WARRANTIES OF FITNESS FOR PURPOSE, MERCHANTABILITY, AND OTHER STATUTORY
REMEDIES WHICH ARE WAIVED.
This limited warranty does not cover any losses or damages that occur as a result of:
•
Improper installation or maintenance of the products
•
Misuse
•
Neglect
•
Adjustment by non-authorized sources
•
Improper environment
•
Excessive or inadequate heating or air conditioning or electrical power failures, surges, or other
irregularities
•
Equipment, products, or material not manufactured by OFITE
•
Firmware or hardware that have been modified or altered by a third party
•
Consumable parts (bearings, accessories, etc.)
Returns and Repairs:
Items being returned must be carefully packaged to prevent damage in shipment and insured against
possible damage or loss. OFITE will not be responsible for equipment damaged due to insufficient
packaging.
Any non-defective items returned to OFITE within ninety (90) days of invoice are subject to a 15%
restocking fee. Items returned must be received by OFITE in original condition for it to be accepted.
Reagents and special order items will not be accepted for return or refund.
OFITE employs experienced personnel to service and repair equipment manufactured by us, as well as
other companies. To help expedite the repair process, please include a repair form with all equipment
sent to OFITE for repair. Be sure to include your name, company name, phone number, email address,
detailed description of work to be done, purchase order number, and a shipping address for returning the
equipment. All repairs performed as “repair as needed” are subject to the ninety (90) day limited warranty.
All “Certified Repairs” are subject to the twelve (12) month limited warranty.
Returns and potential warranty repairs require a Return Material Authorization (RMA) number. An RMA
form is available from your sales or service representative.
Please ship all equipment (with the RMA number for returns or warranty repairs) to the following address:
OFI Testing Equipment, Inc.
Attn: Repair Department
11302 Steeplecrest Dr.
Houston, TX 77065
USA
OFITE also offers competitive service contracts for repairing and/or maintaining your lab equipment,
including equipment from other manufacturers. For more information about our technical support and
repair services, please contact [email protected].
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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