OfiTE 120-60 Instruction Manual Download Page 9

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

8

Operation

The blending assembly has two speeds, “HI” and “LO”. The Constant Speed 

Blender will not operate unless the blending assembly is set to “HI”. Before 

operation, press the “HI” button on the blending assembly.

The unit has three operating modes: Manual, Variable, and Auto. The 

MAN/

AUTO - Variable

 switch (13) and the 

MAN/AUTO

 switch (15) set the mode.

1.  To set the unit to Manual Mode, set the 

MAN/AUTO - Variable

 switch (13) 

to 

MAN/AUTO

 and the 

MAN - AUTO

 switch (15) to 

MAN

.

2.  To set the unit to Auto Mode, set the 

MAN/AUTO - Variable

 switch (13) to 

MAN/AUTO

 and the 

MAN - AUTO

 switch (15) to 

AUTO

.

3.  To set the unit to Variable Mode, set the 

MAN/AUTO - Variable

 switch 

(13) to 

Variable

.

Before turning the unit on, be sure to set the MAN/AUTO switch (15) 

and the ST PT 1 / ST PT 2 switch (14) to the center position and turn 

the Potentiometer (16) fully counter-clockwise.

1.  Place the mix water into the mixing cup and place the lid on top of the 

container.

2.  The 

MAN/AUTO - Variable

 switch (13) should be in the 

MAN/AUTO

 

position. The 

MAN/AUTO

 switch (15) should be in the 

MAN

 position.

3.  Place the 

ST PT 1 / ST PT 2

 switch (14) to the 

ST PT 1

 position to start 

the unit.

When you initially start the unit, the rotational speed may exceed the 

setpoint, but will stabilize within a few seconds.

4.  After stabilization, you have 15 seconds to add the cement to the mix 

water and cover the container with the lid. Reset the timer to zero by 

pressing the Reset Button (8).

5.  After 15 seconds, increase the rotational speed by setting the 

ST PT 1 / 

ST PT 2

 switch (14) to 

ST PT 2

.

6.  After mixing the cement an additional 35 seconds, stop the blender by 

setting the 

ST PT 1 / ST PT 2

 switch (14) to the center position.

7.  Return the 

MAN/AUTO

 switch (15) to the center position.

8.  After mixing is complete, clean the blending cup and lid as soon as 

possible to prevent any cement from building up on the container.

Operation 

Manual Mode

Summary of Contents for 120-60

Page 1: ...30 Volt 120 60 F For Fracturing Fluids 115 Volt 120 60 1 F For Fracturing Fluids 230 Volt Instruction Manual Updated 11 16 2015 Ver 5 0 OFI Testing Equipment Inc 11302 Steeplecrest Dr Houston Texas 77...

Page 2: ...320 7300 Fax 713 880 9886 www ofite com 1 Intro 2 Description 2 Specifications 3 Components 3 Installation 7 Operation 8 Manual Mode 8 Variable Mode 9 Auto Mode 9 Timer 10 Speed Controller 10 PID Para...

Page 3: ...be utilized to mix cements according to the procedures stated by the API The proper amount of mix water is carefully weighed and poured into the mixing container of the blender The rotational speed is...

Page 4: ...5 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 6 120 61 1 Spare Parts Kit 230 Volt 122...

Page 5: ...display shows the speed of the blade On models for cement testing 120 60 120 60 1 multiply the value displayed here by 10 to determine the actual RPM of the blade 2 Timer Display Seconds 3 Edit Setpo...

Page 6: ...point value by 1 7 Enter Button Press this button to store the Setpoint value in memory 8 Timer Reset Press this button to reset the timer to zero 9 Keypad VAR This button accesses the PID Parameter C...

Page 7: ...For testing Cement part numbers 120 60 and 120 60 1 Setpoint 1 is 4 000 RPM and Setpoint 2 is 12 000 RPM For testing Fracturing Fluids Setpoint 1 is 500 and Setpoint 2 is 1 000 RPM 15 Three Way Switch...

Page 8: ...fely away from sinks and other possible hazards 2 Place the blending assembly on the base of the unit 3 Plug the power supply cord into the port underneath the cabinet housing labeled BLENDER 4 Plug t...

Page 9: ...nd turn the Potentiometer 16 fully counter clockwise 1 Place the mix water into the mixing cup and place the lid on top of the container 2 The MAN AUTO Variable switch 13 should be in the MAN AUTO pos...

Page 10: ...er position Place the MAN AUTO VARIABLE switch 13 to the MAN AUTO position Place the MANUAL AUTO switch 15 switch to the AUTO position Once the switch is placed into the AUTO position the blender shou...

Page 11: ...e display 3 6 each increase a separate digit of the setpoint value The digits will scroll from 0 to 9 and then return to 0 3 When you reach the correct setpoint value press the enter button 7 to store...

Page 12: ...ut the response was slow increase the value of Variable 9 by 4 Repeat the above procedure changing the value of VARIABLE 9 until there is minimal overshoot and the ramp is smooth Note that to fine tun...

Page 13: ...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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