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InstroTek COREDRY PRO Operating Manual
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InstroTek COREDRY PRO Operating Manual

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Summary of Contents for InstroTek COREDRY PRO

  • Page 1 Rapid Asphalt Drying System OPERATING MANUAL www.InstroTek.com...
  • Page 2 © 2024 InstroTek, Inc. CoreDry Pro™ Operation Manual Version 9...
  • Page 3 THE TEST. Be aware that the vapor trap reaches temperatures below freezing. Voltage of 120V is present inside the CoreDry cabinet. DO NOT PROBE INTO THE MAIN CABINET WITH METAL TOOLS OR FINGERS. IF COVER MUST BE REMOVED CONTACT INSTROTEK FIRST.
  • Page 4 (InstroTek part number 977.1004 package of 12 filters). Change your exhaust filter on the vacuum pump once a year (a software prompt will tell you to do this). (InstroTek part number 977.1005). Call InstroTek at (919) 875-8371 if you have any questions.

  • Page 5: Table Of Contents

    InstroTek Table of Contents **************************************** 1. INTRODUCTION 2. GETTING STARTED 3. MENU FUNCTIONS 4. AGGREGATE TESTING 5. MAINTENANCE 6. TROUBLESHOOTING 7. WARRANTY...

  • Page 6: Introduction

    InstroTek 1. Introduction Congratulations on the purchase of your CoreDry Unit. The CoreDry is an innovative device used for rapid vacuum drying of samples, while maintaining the sample at room temperature. Keeping the sample cool during drying process ensures that the characteristics of the sample have not changed.
  • Page 7 InstroTek CoreDry Components Sample Cold Trap Chamber with with Lid On/Off Switch CoreDry Front View Oil Fill Plug Drain Valve Oil Level Site Glass Power Glass Connector CoreDry Back View...
  • Page 8 InstroTek Flow Plate & Wire Mesh Sample Flow Plate and Sample Holder Installed in Sample chamber Tank Filters...

  • Page 9: Getting Started

    InstroTek 2. Getting Started Setup Guide 1. Remove from shipping box: Remove foam protection from box and remove CoreDry unit, covers and accessories. Place CoreDry close to 120V outlet on a flat bench surface. Leave at least 6” of space on both sides of the CoreDry for air circulation.
  • Page 10 InstroTek Operating Instructions A software flow chart detailing the drying process using default settings is provided on the following page. In summary, the sample is registered as dry when the Pressure Setpoint (default: 7 mmHg) is reached. In order to avoid heat damage to the...
  • Page 11 InstroTek...
  • Page 12 InstroTek Main Screen Example of screen during Vacuum Cycle...
  • Page 13 InstroTek Example of screen during Flow Cycle Example of screen during Bypass Cycle...
  • Page 14 InstroTek For best results, place the sample on its side. Important note for drying extremely wet samples- If the sample is not dry after 45 cycles, remove the sample and place at room temperature for 15 minutes. After 15 minutes it is ok to put the sample back in the sample chamber and complete the drying with the CoreDry.
  • Page 15 InstroTek a sample is higher than 6 mmHg, refer to the trouble shooting section or call InstroTek for service information. Note: When you receive the CoreDry or after transport to other locations, you might have to run the CoreDry several cycles to achieve 6 mmHg.

  • Page 16: Menu Functions

    InstroTek 3. Menu Functions Main Menu • Active Program # __ (default: 1) Choose between 5 different sets of parameters for drying cores or other samples. The following parameters are specific to the Program #: Number of Runs Max Cycles...
  • Page 17 InstroTek Reduce Flow Post BP Cycle Post PL Cycle Pause Time Use the Previous and Next buttons to cycle through the programs. Press the Details button to view the settings for the selected program. • AutoRice Pressing this button enters AutoRice Mode. This enables an external AutoRice device to use the CoreDry’s pump and Cold...
  • Page 18 InstroTek (default: 60) Displays the amount of time (in seconds) that the Cold Trap will cool at initialization and in between drying runs. 3. Beeper Volume: (____) (default: Medium) Adjusts the volume of the beeper between four settings Off, Low, Medium, or High.
  • Page 19 Note: this menu should only be accessed by persons with knowledge of and experience with operating a CoreDry, or upon instructions from an InstroTek technician. Changing settings in this menu may have an adverse effect on drying time/quality! 11.
  • Page 20 InstroTek 1. Vacuum Time (default: 65) Length of time (in seconds) the Vacuum and Bypass cycles will last. 2. Initial Vacuum Time (default: 0) See ‘Initial Mode’ at the end of this section. 3. Dry Pressure Set Point (default: 7) Once this pressure (in mmHg) is reached, the sample is registered as dry.
  • Page 21 InstroTek (default: 1) Minimum number of Vacuum cycles the machine will run, regardless of the chamber pressure reached, before entering Bypass mode or alerting the user that the sample is dry. 11. Post Bypass Cycles (default: 0) Number of Vacuum cycles the machine will...
  • Page 22 AutoRice Mode: In this mode, the CoreDry can be used in conjunction with the InstroTek AutoRice™ to perform Rice tests (AASHTO T209 & ASTM 2041). The CoreDry provides suction using its vacuum pump and removes a large percentage of the moisture from the air using its Cold Trap while the AutoRice controls the testing process automatically, including regulating the pressure.
  • Page 23 InstroTek AutoRice connects to an electrical port, both on the side of the CoreDry. The AutoRice is then able to switch on the pump as needed. CoreDry set up with AutoRice, pycnometer, and shaker CoreDry screen while in AutoRice Mode...

  • Page 24: Aggregate Testing

    InstroTek 4. Aggregate Testing Using the InstroTek CoreDry™ The CoreDry can be used for determination of aggregate moisture content. Use the following procedure to dry aggregates and to determine moisture content: 1. Set the CoreDry to Program #2 using the first option in the Menu.
  • Page 25 InstroTek message prompting the user to turn the sample and restart the drying operations. At this point remove the fixture from the chamber, shake the fixture to re-orient the aggregates and replace inside the sample chamber. Close the lid and press Enter. The unit will continue until the sample is completely dry.
  • Page 26 InstroTek Aggregate Sample Fixture Aggregate Fixture with one fastener and lid removed...

  • Page 27: Maintenance

    InstroTek 5. Maintenance Tank filters - Clean Frequently (Replacement part number 977.1004) The two particle filters cover the tank ports. Remove the filters when dust or debris is present and replace with two new filters. These filters are used to protect your pump from damage due to particles and debris.
  • Page 28 Caution: Carefully remove any spilled oil from the floor to avoid accidents. Only use high-quality synthetic vacuum oil. Vacuum pump oil can be obtained by calling InstroTek at 919-875-8371 or fax 919- 875-8328. The InstroTek part number is 419.0005. Pump Filter Change- Necessary every 320 hours of run time Changing Pump Filter - Busch Pump (Replacement part number 977.1005)
  • Page 29 InstroTek Tools Needed: 10mm metric socket Ratchet or nut driver 1. Turn CoreDry off and unplug unit from power source. 2. Locate the exhaust port on the left side of the vacuum pump, which is located at the back of the unit. An opening in the side of the chassis gives access to the exhaust port.
  • Page 30 InstroTek Loosen screw and remove retaining bar Verify Vacuum Pressure Reading and Calibrate if Needed (every 6 months) 1. Ensure there is no moisture inside the Cold Trap. 2. Ensure the unit is set to Program #1. 3. Warm up the CoreDry by running the unit empty with both lids on.
  • Page 31 InstroTek 4. Place an analog absolute vacuum gauge inside the sample chamber and place lids on both the sample chamber and Cold Trap. 5. Start a run by pressing Start. 6. The unit will pull vacuum in the sample chamber for the time specified in the Vacuum Time setting.
  • Page 32 InstroTek calibration is complete. If not, repeat the process from step 4. If the readings still do not match after 3 attempts, contact InstroTek for further troubleshooting instructions.

  • Page 33: Troubleshooting

    Test the outlet by plugging another device such as a lamp or fan into the same outlet. • Contact InstroTek for further instructions: 919-875-8371. CoreDry runs but never indicates the sample is dry – The CoreDry will register that the sample is dry only after...
  • Page 34 InstroTek CoreDry does not enter Bypass mode – • Run the unit with the sample chamber empty. Note the minimum pressure reached during the first Vacuum Cycle. Ensure that it is at or below the Bypass Pressure setpoint (default is 12 mmHg). If the pressure does not reach the Bypass Pressure setpoint according to the CoreDry display, refer to the subsection ‘CoreDry does...
  • Page 35 ‘Verify Vacuum Pressure Reading and Calibrate if Needed’ in the ‘Maintenance’ section. • Contact InstroTek for further troubleshooting instructions: 919-875-8371. CoreDry will not release vacuum – • Make sure the unit is powered on.

  • Page 36: Warranty

    Do not ship products back via small parcel carriers i.e. UPS or FedEx. Use a freight shipping company i.e. R&L, FedEx Freight, UPS Freight or Estes. Call InstroTek, Inc. for shipping details at (919) 875-8371 or fax at (919) 875-8328.
  • Page 37 InstroTek Contact Information Innovators in Instrumentation Technology www.InstroTek.com | (919) 875-8371 | sales@InstroTek.com Research Triangle Park, NC | Austin, TX | Bensalem, PA | Grand Rapids, MI | Denver, CO | Concord, CA...
  • Page 38 Contact us for top quality, best value and superior service! email: sales@instrotek.com visit: InstroTek.com ª CALL A LOCATION NEAR YOU: Headquarters: Research Triangle Park, NC phone: 919.875.8371 Bensalem, PA phone: 215.645.1064 ª Grand Rapids, MI phone: 616.726.5850 Denver, CO phone: 303.955.5740 ª Austin, TX phone: 512.452.8848...