DESCO 50681. Chargebuster 3-Fans Overhead Ioniser, No Cord, 220VAC, 94CM

• Shrouded 3 Blade Fan Design with Steady State DC Ionisation
  Allows for better coverage (2’ x 5’), consistent balance ±10 Volts, and superior decay rate (<3 seconds)
• Auto-Feedback System (Audible And Visual Alarm Through Single Tri-Color LED)
  Unit will automatically shut down and alarm if/when supply voltage drops
• 120/220 VAC Input Voltage Selectable
  Unit can we used with 110V or 220V power sources
• 3 Position Fan Speed: Low, Medium, High
  Ionisation performance is consistent at all speeds and allows for use with sensitive applications, such as calibration, test, or repair procedures
• Replaceable Emitter Pins
  Field replaceable emitter pins allow for minimal downtime
• Made in the United States of America
• Low Ozone Emissions – tests well below the OSHA limit of 0.05 ppm ozone
• No power cord included.
  Choose from 200220 or 200225
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“Ionizers should be considered as a method for charge neutralization in cases where grounding cannot be achieved. These may include localized (bench) ionized air blowers, compressed air ionizers, spot ionizers, tape dispenser ionizers and total room ionizers.” “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 a static 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. As with all ionizers, periodic maintenance will be needed to provide optimum performance.” (EN 61340-5-2 paragraph 5.2.9)

“Various feedback and auto balance techniques are available to ensure ionizer performance. … Providing a sensor for each ionizing device can improve feedback control. Effective control can reduce the amount of necessary maintenance. (EN 61340-5-2 paragraph 5.2.9.2 Monitoring and feedback control)