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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

TB-3031

 Page 3 of 8

© 2014 DESCO INDUSTRIES, INC.

Employee Owned

Calibration

When an alarm sounds, most users will clean emitter pins 

(see Maintenance / Alarms section) and calibrate the ionizer. 

Per ESD TR 53 section 5.3.6.7.1 “The best practice is to 

measure the offset voltage and discharge times, clean the 

unit, including emitter points and air filters if present, offset 

voltage to zero (if adjustable), and then repeat offset voltage 

and discharge time testing. If the unit does not meet offset 

voltage specifications or minimum established discharge 

time limits, further service is indicated. Manufacturers should 

provide details on service procedures and typical service 

intervals.”
Most companies will assign a number or otherwise 

identify each ionizer and setup a compliance Verification / 

Maintenance / Calibration schedule. If the ionizers all test 

good, the data can justify lengthening the calibration period. 

If ionizers require adjustment the calibration period should 

be shortened. Although ESD TR53 does not advise a test 

frequency, JESDD625-A (Revision of EIA-625) recommends 

ionizers be tested semiannually, noting to use “S3.1 except 

the number of measurement points and locations may be 

selected based on the application.”
NOTE: A charged plate analyzer or monitor should be used 

in order to properly calibrate the Chargebuster® Overhead 

Ionizer.  The EMIT 50571 Charged Plate Analyzer can be 

used to calibrate the Chargebuster® Overhead Ionizer.
1.  Properly setup the ionizer as described in the Installation 

 

procedure on page 1.

2.  Turn the unit ON and set the FAN SPEED to HIGH.
3.  Position the charged plate analyzer 18 inches 

 

underneath one of the fans of the ionizer.

4.  Push and hold the ALARM RESET button on the ionizer 

 

until the STATUS LED turns red.  Release the button and 

 

the LED should switch back to green.  This allows the 

 

user to calibrate the balance (offset voltage) of the 

 

ionizer without setting off the alarm.

5.  The balance (offset voltage) of each fan should be within 

 

0 and ±10 volts. The required limit per ANSI/ESD S20.20 

 

is less than ± 50 volts.  To increase the output in a 

 

positive direction, turn the BALANCE ADJUST 

 

potentiometer in a clockwise direction.  To increase the 

 

output in a negative direction, turn the BALANCE 

 

ADJUST potentiometer in a counter-clockwise direction.

6.  Test the neutralization (discharge) time by applying 

 

a ±1,000 volt on the charged plate.  The neutralization 

 

(discharge) time should be less than 3 seconds when 

 

charged plate analyzer is directly under a fan.  See 

 

the “Neutralization (Discharge) Times” section for typical 

 

discharge times.  The required limit per ANSI/ESD 

 

S20.20 is “user defined”.

7.  Submit the balance (offset voltage) to the ionizer’s 

 

control circuit by quickly pressing the ALARM RESET 

 

button. The STATUS LED should turn off and then 

 

illuminate green to verify that the control circuit was 

 

successfully programmed.

8.  Test each fan’s alarm by shorting its two grills located on 

 

the bottom side of the ionizer.  The alarm should sound 

 

and the STATUS LED should illuminate red.

Figure 5.  Calibration controls

Figure 6.  Shorting the ionizer’s two fan grills

Содержание Chargebuster 60473

Страница 1: ...insulating materials e g most common plastics and moving personnel who cannot use wrist or heel straps or ESD control flooring and footwear November 2014 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 room...

Страница 2: ...itter points should not require replacement during the life of the unit If necessary item 60507 Replacement Emitter Points are available for purchase Adjustments and Compliance Verification BALANCE OFFSET VOLTAGE ADJUSTMENT The Chargebuster Overhead Ionizer is an auto balancing unit However tuning or manual adjustment can be accomplished by inserting a small screwdriver or trimmer adjustment tool ...

Страница 3: ...nalyzer can be used to calibrate the Chargebuster Overhead Ionizer 1 Properly setup the ionizer as described in the Installation procedure on page 1 2 Turn the unit ON and set the FAN SPEED to HIGH 3 Position the charged plate analyzer 18 inches underneath one of the fans of the ionizer 4 Push and hold the ALARM RESET button on the ionizer until the STATUS LED turns red Release the button and the ...

Страница 4: ...nment Per ANSI ESD S20 20 the test method for Product Qualification test is ANSI ESD STM3 1 and for Compliance Verification is ESD TR53 which advises Measurements should be made at the location where ESD sensitive items are to be ionized A larger area may require additional ionizers Per S20 20 the required limit for ionizer discharge time is user defined Use Table to determine the number of ionize...

Страница 5: ...ure 8 60473 Neutralization Discharge Times at 120VAC 60Hz input TP4 2 2 2 9 TP7 2 2 2 8 TP10 5 5 6 7 TP2 2 5 3 4 TP5 1 4 1 9 TP8 1 9 2 3 TP11 2 3 2 8 TP3 5 2 6 8 TP6 2 1 2 8 TP9 2 4 2 8 TP12 5 8 7 6 TP1 10 1 10 8 16 16 12 12 Charged Plate 16 Figure 9 60473 Neutralization Discharge Times at 220VAC 50Hz input TP4 3 2 3 4 TP7 2 7 3 0 TP10 7 5 8 4 TP2 3 1 3 2 TP5 2 0 2 1 TP8 1 9 2 0 TP11 3 4 4 2 TP3 5...

Страница 6: ... 60640 Neutralization Discharge Times at 100VAC 50Hz input TP4 2 7 3 6 TP7 3 3 4 0 TP10 15 6 22 8 TP2 9 1 11 8 TP5 1 7 2 1 TP8 1 8 2 2 TP11 9 6 12 8 TP3 13 5 17 5 TP6 3 9 4 7 TP9 3 8 5 4 TP12 14 8 22 9 TP1 7 1 9 3 16 16 12 12 Charged Plate 16 Figure 11 60640 Neutralization Discharge Times at 120VAC 60Hz input TP4 2 0 2 8 TP7 2 5 3 0 TP10 10 3 11 1 TP2 6 1 7 0 TP5 1 4 1 7 TP8 1 9 2 2 TP11 8 5 9 5 T...

Страница 7: ...te Desco com TB 3031 Page 7 of 8 2014 DESCO INDUSTRIES INC Employee Owned TP1 8 9 11 8 16 16 12 12 Charged Plate 16 Figure 12 60640 Neutralization Discharge Times at 220VAC 50Hz input TP4 3 2 3 5 TP7 2 2 3 2 TP10 12 3 14 9 TP2 8 1 9 2 TP5 1 6 2 1 TP8 1 3 1 8 TP11 10 3 14 4 TP3 10 7 11 3 TP6 3 1 3 6 TP9 3 1 4 3 TP12 10 8 12 8 ...

Страница 8: ... 16 8cm W x 94 7 cm L 60640 3 9 H x 6 6 W x 22 3 L 9 9cm H x 16 8cm W x 56 6 cm L Emitter Points 050 diameter Made of pure tungsten for improved mechanical strength and ionization stability Fuse 400mA slow blow High Voltage Power Supply 5 5kV DC nominal Input Power AC line power Internally selectable for 100 120 VAC 50 60Hz or 220 230 VAC 50 60Hz Ion Emission Steady state DC with sense feedback Mo...

Страница 9: ... 401 Building No 5 JiuGe Business Center Lane 2301 Yishan Rd Minhang District Shanghai China Sales Direct 86 21 6401 6692 Email amall ameya360 com QQ 800077892 Skype ameyasales1 ameyasales2 Customer Service Email service ameya360 com Partnership Tel 86 21 64016692 8333 Email mkt ameya360 com ...

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