参数资料
| 型号： | 60473 |
| 厂商： | Desco |
| 文件页数： | 3/7页 |
| 文件大小： | 0K |
| 描述： | IONIZER O'HEAD 3FAN 120V US PLUG |
| 标准包装： | 1 |
| 系列： | Chargebuster® |
| 类型： | 电离器 |
| 安装类型： | 悬挂式 |
| 输入电压： | 120VAC，220VAC |
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 7
2013 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 50555 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 ±15 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
相关PDF资料 |
PDF描述 |
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| 60501 | JR IONIZER CASSETTE 120V W/HEATR |
| 6081 | WRIST STRAP ELASTIC ESD BLUE |
| 6082 | WRIST STRAP ELASTC W/CLIP & CORD |
| 6083 | WRIST STRAP METAL ESD |
| 6084 | WRIST STRAP METAL W/CLIP & CORD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 60473-SP | 制造商:WALDOM ELECTRONICS 功能描述: |
| 60475 | 制造商:WALDOM ELECTRONICS 功能描述: |
| 604-75 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| 60475-SP | 制造商:WALDOM ELECTRONICS 功能描述: |
| 60476 | 制造商:WALDOM ELECTRONICS 功能描述: |
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