TECHNICAL BULLETIN TB-3043 High Output Benchtop Ionizer Made in the Installation, Operation and Maintenance United States of America The primary method of static charge control is direct connection to ground for conductors, static dissipative materials, and personnel. A complete static control program must also deal with isolated conductors that cannot be grounded, insulating materials (e.g., most common plastics), and moving personnel who cannot use wrist or heel straps or ESD control flooring and footwear. Air ionization is not a replacement for grounding methods. It is one component of a complete static control program. Ionizers are used when it is not possible to properly ground everything and as backup to other static control methods. In clean rooms, air ionization may be one of the few methods of static control available. (ESD Handbook ESD TR20.20 Ionization, section 5.3.6.1 Introduction and Purpose / General Information) Ionizer Selection Figure 1. Desco High Output Benchtop Ionizer ANSI/ESD S20.20 section 6.1.1.2. ESD Control Program Plan Guidance states: The Plan should include a listing of Description the specific type of ESD protective materials and equipment used in the Program. When selecting an ionizer, life cycle The Desco High Output Benchtop Ionizer is a compact costs should be considered, including: and lightweight steady state DC auto-balancing benchtop - equipment cost worksurface ionizer with integrated closed-loop feedback. - installation cost The unit is normally placed at one end of the workbench or - operation and maintenance cost area to be neutralized. It may also be mounted to a wall or shelf. The Ionizers neutralization discharge time will be best Desco ionizers meet the ANSI/ESD S20.20 required limits approximately 12 to 48 directly in front of the unit and will of less than 35 volts offset voltage balance tested in increase as the distance from the unit increases. accordance with ANSI/ ESD STM3.1. All Desco benchtop ionizers greatly exceed the requirement providing 5 to 25 The Desco High Output Benchtop Ionizer employs Steady volt auto-balancing. State DC technology. Steady State DC systems consist of separate negative and positive ion emitters connected by a The High Output Benchtop Ionizer is available in two models: pair of high-voltage cables to their respective high-voltage power supplies. The spacing between emitters varies Item Input Voltage depending on the design, and DC power is constantly applied to the emitter points. The ionizer uses feedback from 60505 120 VAC the internal sensor grill to continuously adjust the output to 60515 220 VAC maintain balance. Ionizers are useful in limiting electrostatic charge generation, Packaging ElectroStatic Discharge, ElectroStatic Attraction, as well 1 High Output Benchtop Ionizer as preventing equipment latch-up. Per ANSI/ESD S20.20 1 Power Cord, North America (60505 only) section 6.2.3.1. Protected Areas Requirement states: 1 Emitter Point Cleaner Pack Ionization or other charge mitigating techniques shall be 1 Certificate of Calibration used at the workstation to neutralize electrostatic fields on all process essential insulators if the electrostatic field is considered a threat. Air ionization can neutralize the static charge on insulated and isolated objects by producing separate charges in the molecules of the gases of the surrounding air. When an electrostatic charge is present on objects in the work environment, it will be neutralized by attracting opposite polarity charges from the ionized air. Note that ionization systems should not be used as a primary means of charge control on conductors or people. (Reference: EN 61340-5-2:1 clause 5.2.9) DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 (909) 627-8178 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 (781) 821-8370 Website: Desco.com 2019 DESCO INDUSTRIES INC TB-3043 Page 1 of 6 September 2019 Employee OwnedFeatures and Components Maintenance All ionization devices will require periodic maintenance for proper operation. Maintenance intervals for ionizers vary widely depending on the type of ionization equipment and use environment. Critical clean room uses will generally E A require more frequent attention. It is important to set-up a routine schedule for ionizer service. Routine service is typically required to meet quality audit requirements. (ESD D B Handbook TR20.20 section 5.3.6.7 Maintenance / Cleaning) C EIA-625, recommends checking ionizers every 6 months, but this may not be suitable for many programs particularly since an out-of-balance may exist for months before it is checked again. ANSI/ESD S20.20 section 6.1.3.1 Compliance Verification Plan Requirement states: Test equipment shall Figure 2. High Output Benchtop Ionizer features and be selected to make measurements of appropriate properties components of the technical requirements that are incorporated into the ESD program plan. A. Power Cord Connection: Connect the power cord here. B. Power Switch: Toggle the switch to the left to turn the CLEANING THE EMITTER POINTS ionizer OFF. Toggle the switch to the right to turn the ionizer The maintenance interval of the High Output Benchtop ON. Ionizer is extended with the use of its auto-balancing closed-loop feedback technology. The ionizer will detect any C. Fan Speed Switch: Toggle the switch to the left to set shifts in the offset voltage (balance) and adjust its output the fan speed to Low. Toggle the switch to the middle to set to compensate for the change. This shift in offset voltage the fan speed to Medium. Toggle the switch to the right to (balance) is often caused by particle build-up on the ionizers set the fan speed to High. emitter points. To maintain optimum neutralization efficiency and operation, cleaning should be performed on a regular D. Balance Adjustment: Turn the potentiometer basis. clockwise for positive adjustment. Turn the potentiometer counter-clockwise for negative adjustment. Use the included Emitter Point Cleaners or a swab dampened with Isopropyl alcohol to clean the ionizers E. RS-485 IN: For manufacturer use only. emitter points. 1. Turn the unit OFF and unplug the power cord. Installation Place the unit at a desired location where that the airflow will 2. Open the rear screen by not be restricted. Be sure that the ON/OFF switch located loosening the screw and on the rear of the unit is in the OFF position. Plug the power swinging the grill to one cord into the unit and then into the appropriate AC power side. source. 3. Clean the emitter points using the included Emitter Operation Point Cleaners or a swab dampened with Isopropyl 1. Set the fan speed switch on the rear of the unit to the alcohol. Low, Medium, or High position (see Figure 2). Higher airflow will result in faster neutralization rates. 4. Reattach the rear screen. 2. Position the ionizer so that maximum airflow is directed 5. Plug in the power cord towards the items or area to be neutralized. and turn the unit ON. 3. Turn the unit ON. When the unit is first turned on, it 6. Verify the performance of conducts a self-test. The audible alarm will sound and the ionizer by using a the LED will cycle through the colors red, yellow, and charged plate monitor, or green. The LED will remain green during normal ionization test kit. operation. The emitter points should not require replacement during the life of the unit with normal handling. If necessary, item 60507 Replacement Emitter Points are available for order. DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 (909) 627-8178 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 (781) 821-8370 Website: Desco.com 2019 DESCO INDUSTRIES INC TB-3043 Page 2 of 6 Employee Owned