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OfiTE 120-05, Instruction Manual, Page: 31 / 41

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OfiTE 120-05 Instruction Manual Download Page 31

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com

30

8.  Lift the weight about two inches directly upward and release it. Allow it to 

fall straight down. Observe the reading on the Potentiometer Indicator.

9.  Record the reading and repeat steps 6 through 8 with each weight listed 

in the chart below.

The voltage values in this chart are only examples. Every potentiometer 

is different and will, therefore produce different voltages. The calibration 

process will help you interpret the potentiometer readings provided by the 

Consistometer.

A 400 g weight corresponds to approximately 100 Bc.

Mass (grams)

Approximate Voltage

100
200
300
400

2.5
5.5
8.2

10.75

Summary of Contents for 120-05

Page 1: ...05 25 000 PSI 400 F 120 15 40 000 PSI 600 F Instruction Manual Updated 12 21 2016 Ver 5 0 OFI Testing Equipment Inc 11302 Steeplecrest Dr Houston Texas 77065 U S A Tele 832 320 7300 Fax 713 880 9886 w...

Page 2: ...re and Pressure Controller 11 Potentiometer Indicator 13 Software 14 Setup 14 Operation 17 Test Builder 18 Calibration 19 Test Data 20 Operation 21 Filling the Slurry Cup 21 Loading the Test Cell 23 C...

Page 3: ...lurry cup is placed into the test vessel and pressure is increased via an air driven hydraulic pump A PID temperature controller governs an internal heater which maintains the necessary temperature pr...

Page 4: ...rated Weight 2250 lbs 1020 6 kg Temperature Controller Digital PID 1 Resolution Pressure Indicator 100 PSI 690 kPa Resolution High and Low Pressure Alarms Slurry Cup 150 RPM Rotational Speed 316 Stain...

Page 5: ...act Strip 120 608 Grounding Cable Retaining Screw 120 609 Grounding Contact Spring 120 05 Model 100 25 000 PSI 400 F 120 001 Mineral Oil 1 Gallon Qty 6 120 102 Rupture Disk 28 000 PSI Qty 2 120 203 Sl...

Page 6: ...ket Qty 6 120 514 Drive Disk Set Screw 6 32 3 Stainless Steel Qty 10 120 519 Slurry Cup Assembly No Expansion Cap 120 602 Calibration Spring Qty 3 120 604 Potentiometer Resistor Qty 4 120 606 Potentio...

Page 7: ...rive Disk Set Screw 6 32 3 Stainless Steel Qty 10 120 520 Paddle Shaft 9 Qty 10 120 521 Slurry Cup with Extension 120 602 Calibration Spring Qty 3 120 604 Potentiometer Resistor Qty 4 120 606 Potentio...

Page 8: ...7 Pressure Indicator Potentiometer Indicator Switches To operate the Pump switch Up Manual Mode Middle Off Down Auto Mode Timer Air Supply Fill Cell Water Supply Air To Cylinder Pressure Release Temp...

Page 9: ...the instrument This unit uses NPT female connectors for all supply lines 4 Connect the drain and coolant supply lines also on the back of the unit 5 Make sure all electrical switches are turned off a...

Page 10: ...t is located just upstream of the air inlet on the hydraulic pump inside the Consistometer cabinet You can access it by opening the cabinet doors on the back of the unit If the oil level is low refill...

Page 11: ...alue you set During an alarm condition the heater pump and motor will automatically shut down The display shows the current pressure in KPSI This means a reading of 12 501 indicates a pressure of 12 5...

Page 12: ...to mixing the slurry and loading the slurry cup The Eurotherm 3504 can store up to eight custom programs Each program consists of multiple segments In a segment the temperature or pressure setpoint c...

Page 13: ...ncrease the setpoint to the target Dwell Hold the current setpoint Duration The amount of time to hold the current setpoint Step Increase the setpoint immediately No ramp is involved Target SP The end...

Page 14: ...y increases The potentiometer indicator features a high voltage alarm When the charge reaches the specified level an alarm condition is triggered and the heater pump and motor are automatically shut o...

Page 15: ...meters connected to this PC 6 Choose the COM port the new Consistometer is connected to 7 Chose a folder to save the test data It is recommended that each Consistometer have its own data archive folde...

Page 16: ...ata archive path Units with R after their name are currently running a test Right click on a unit and select Launch from the menu 13 Select Setup from the Options menu 14 Select a Temp Unit F or C Con...

Page 17: ...he test is finished Make sure that if you select Bc for consistency units that you also use Bc for these two fields Likewise if you chose V for consistency units you must use voltage for these two fie...

Page 18: ...ts Job Type The following fields do affect your test DAQ Time mm ss determines how often test data is saved to file Alarm sets the consistency alarm Be sure to use the same consistency units set in th...

Page 19: ...py Test button to start with an existing test 3 On the Temperature or Pressure tab click the Add button to add a step 4 Choose a Step Type Ramp The software will increase the setpoint up to the target...

Page 20: ...Calibration from the Operations menu 2 Prepare the potentiometer for calibration as described on page 29 3 Place the weight hanger with no weights on the end of the string The weight hanger is 50 g 4...

Page 21: ...st or calibration to view The graph will be displayed in the chart area 3 To print the chart click the Print Chart button You can also print a chart or export test data during a test Simply right clic...

Page 22: ...addle assembly all the way into the top of the cylinder Cylinder Paddle 4 Slide the slurry cup lock ring on top of the paddle assembly with the two notches facing upward Tighten the locking ring compl...

Page 23: ...ks out of the hole in the center of the cap If it is not remove the cap and refill the slurry cup Do not add cement through the hole in the cap 8 Screw the pivot bearing into the hole in the center of...

Page 24: ...uring that the slurry cup drive pins engage the drive holes at the bottom of the test cell It may be necessary to start the motor briefly to confirm that the slurry cup is properly aligned inside the...

Page 25: ...It is recommended that you hand tighten the cell until it is close to the mark then use a rubber mallet to gently tap the cell cap into position This will ensure that you do not accidentally over tig...

Page 26: ...pressure to continually overshoot If this happens close the regulator by turning it counter clockwise This is a trial and error process The goal is to set the regulator high enough to reach the press...

Page 27: ...the cell has cooled 3 As the test cell cools watch the pressure carefully As long as the temperature is over 180 F 82 2 C make sure the pressure is at least 1 000 PSI 6 900 kPa 4 Once the test cell ha...

Page 28: ...recommended that you periodically flush the test cell with mineral oil to clean out any contaminants that may have collected over time 1 Make sure all switches are off and all valves are closed 2 Ope...

Page 29: ...the slurry cup table onto the rotor shaft assembly Pour a small amount of mineral oil into the vessel This will act as a cushion when inserting the rotor assembly 8 Insert the rotor assembly into the...

Page 30: ...ntacts From the groove going clockwise around the unit connect yellow then black then blue 3 Slide the weight into the groove and wrap the cord clockwise around the unit one full turn 4 Let the cord h...

Page 31: ...r 9 Record the reading and repeat steps 6 through 8 with each weight listed in the chart below The voltage values in this chart are only examples Every potentiometer is different and will therefore pr...

Page 32: ...ion the spring is probably either damaged or worn by corrosion Replace the spring 3 To install a new resistor a Remove the four small screws holding the shaft bearing retainer to the potentiometer ass...

Page 33: ...arm and make adjustments as necessary to obtain consistent contact with the resistor e Loosen the three adjustment screws on the underside of the potentiometer assembly and rotate the spring adjuster...

Page 34: ...ust upstream from the filter on the inlet side of the pump To replace the rupture disk remove this block discard the ruptured disk and install a new disk Then re install the block into the plumbing li...

Page 35: ...the reservoir is dirty it could mean that the oil in the reservoir is also dirty Observe the oil through the sightglass on the front of the reservoir If the oil is cloudy it should be replaced 1 Make...

Page 36: ...r the wiring Make sure all devices are working and are properly connected to each other 2 Check the following based on which controller is causing the alarm Temperature Make sure the thermocouple is p...

Page 37: ...ure relief valve This regulator comes calibrated and requires no adjustment unless a part within this system has been replaced If the user must gain access to the regulator simply remove the back pane...

Page 38: ...832 320 7300 Fax 713 880 9886 www ofite com 37 Appendix Cell Diagram Sample Thermocouple 120 208 Cell Cap Test Cell Metal O ring 120 401 Cooling Jacket Test Cell Thermocouple Cooling Jacket Contact S...

Page 39: ...0 522 Diaphragm Support 120 515 Diaphragm Retaining Ring 120 508 Paddle Pin 120 503 Sleeve 120 501 Base 120 516 Drive Pin 120 512 Pivot Bearing 120 504 Drive Bar 120 510 Drive Disk Set Screw 120 514 P...

Page 40: ...Drive Disk 120 509 Locking Ring 120 517 Diaphragm Support 120 515 Diaphragm Retaining Ring 120 508 Paddle Pin 120 503 Sleeve 120 501 Base 120 516 Drive Pin 120 512 Pivot Bearing 120 504 Drive Bar 120...

Page 41: ...ny 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 hea...

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