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Summary of Contents for MicroFab Technologies MJ-AB-01
- Page 1 MicroFab Technologies, Inc. www.microfab.com MJ-AB User’s Manual...
- Page 2 MJ-AB User’s Manual MicroFab Technologies 1104 Summit Avenue, Suite #110 Plano, Texas 75074 Phone 972.578.8076 • Fax 972.423.2438...
- Page 3 Notice: The information contained in this document is subject to change without notice. MicroFab makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. MicroFab shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
- Page 4 Warranty The MJ-AB jetting device is warranted against defects in material and workmanship for a period of thirty days from date of shipment. During the warranty period, MicroFab will, at its option, either repair or replace devices that prove to be defective. Limitation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or misuse, or operation outside of the...
- Page 5 MicroFab Technologies 1104 Summit Avenue, Suite #110 Plano, Texas 75074 Phone 972.578.8076 • Fax 972.423.2438 Equipment Series: MJ-AB Jetting Device Mfg Date: Indicated by device Serial No. General Safety Considerations Warning The jetting device itself presents no general chemical hazard. However, safety measures should be followed as outlined in the MSDS for fluids to be dispensed.
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Page 6: Table Of Contents
T able of Contents 1 - G ECTION ENERAL NFORMATION Introduction ................1 Technical Specification.............1 Facility Requirements..............2 Pneumatics ..................2 Electrical..................3 2 - E ECTION QUIPMENT ATINGS Supply Voltage ................5 Range of environmental conditions...........5 QUIPMENT NSTALLATION Unpacking and Inspection............5 Assembly..................6 Instructions for Protective Earthing..........6 Ventilation .................6 QUIPMENT... -
Page 7: Section 1 - General Information
With proper fluid preparation and device maintenance, the jetting device will provide reliable delivery of fluid micro-drops. Figure 1 - MJ-AB-01 Jetting Device Technical Specification The MJ-AB jetting device design has successfully jetted a wide variety of fluids. -
Page 8: Facility Requirements
M J - A B U S E R ’ S M A N U A L Figure 2 - Device Dimensions Power Requirements Required power - 115VAC/2A max; 50/60 Hz (for JetDrive electronics; JetDrive can also be configured for 240V installation). Facility Requirements The jetting device, by itself, requires no connection to lab or machine power. -
Page 9: Electrical
M J - A B U S E R ’ S M A N U A L or negative pressure head provided by positioning the fluid reservoir. If the reservoir is mounted a few inches above the jetting device, a constant positive pressure will be provided. - Page 10 M J - A B U S E R ’ S M A N U A L for the jetting device is listed in Table 1. Table 1 - Voltage Pulse Parameters Voltage level 1 0 to 100 V Voltage level 2 -100 to 0 V 1 –...
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Page 11: Section 2 - Equipment Ratings
Section 2 - Equipment Ratings Supply Voltage Consult the manufacturer’s data sheet for supply voltage requirements of the pulse generator used for operation. Range of environmental conditions The MJ-AB device has been successfully operated in the temperature range of 20° to 150° C. It is intended for use in a normal laboratory environment. -
Page 12: Assembly
While removing the protective cap, be sure to pull straight away from the device. The glass tip can be broken or damaged if the cap is pulled to the side during removal. Assembly The jetting device should be physically mounted by light clamping around the 0.156” case. No attempt should be made to hold the jetting device by the glass tip. -
Page 13: Equipment Operation
Equipment Operation Hardware Overview Figure 7 shows a typical set-up for a jetting test station. The key components are: Jetting device (in this case, shown in a PH-03 print head for ease of mounting) Fluid reservoir (shown with static pressure control) Drive electronics with strobe interface Drop observation camera and monitor Video Monitor... -
Page 14: Principles Of Operation
Principles of Operation The MJ-AB device consists of an annular piezoelectric actuator bonded to a glass capillary that is connected at one end to the fluid supply and at the other end has an orifice generally in the range of 30-60um. By applying a voltage to the PZT actuator, the cross-section of the tube capillary is reduced/increased producing pressure variations of the fluid enclosed in the tube. - Page 15 Drive electronics To use the device as a drop on demand dispenser the waveform presented in Figure 8 has to be supplied to the red wire of the piezoelectric actuator with the black/blue wire connected to the ground of the drive electronics unit. The driving signal can be unipolar or bipolar, depending on the fluid used.
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Page 16: Setup Steps
Setup and operation Important: The glass tip of device is very fragile! Care should be taken to remove the protective cap along the device axis otherwise the glass capillary outside the device will break. A gentle twist is usually required to pull the cap directly off the device. Also use care not to touch the fluid end of the device possibly contaminating it. -
Page 17: Notes
After initiating the jetting pulses in their baseline values, adjust the delay control of the strobe interface, and you should be able to observe the meniscus moving. If this is not observed, pressurize the reservoir to 5-15 psi, and you should observe radial perturbations on the cylindrical fluid column exiting the device. -
Page 18: Supplemental Parts
No drops are formed with a fluid puddle formed on the device tip Wipe of the front surface with a cotton swab until dry and readjust the reservoir back pressure if necessary. Air may have been ingested through the orifice – Purge the device, or decrease the voltage to the device Satellites are formed in addition to the main drop –... -
Page 19: Factory Support
Factory Support For any questions regarding the MJ-AB-01 jetting device, or ink jet technology, contact MicroFab Technologies 1104 Summit Avenue, Suite #110 Plano, Texas 75074 Phone 972.578.8076 • Fax 972.423.2438 sayers@microfab.com...
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