TB-2079 Page 4 of 4
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site:
Testing and Calibration
Test using a version of EOS/ESD STM3.1. Observe and record
offset voltage (float voltage) in voltage, measure of discharge
time for +1000volts to +100volts and -1000volts to -100volts in
seconds.
Equipment and tools used:
- Charged Plate Monitor (CPM)
- Medium sizes insulative flat head screw driver
Set-up:
1. Refer to EOS/ESD STM3.1, 6.4 Compresses gas ionizers -
guns and nozzles. Test should be performed on static
dissipative worksurface. Testing technician and worksurface
needs to be properly grounded.
2. Refer to figure 14 - Test location for compressed gas - Guns or
nozzles on page 13. CPM needs to be 6” from the center of the
CPM plate to worksurface. Tip of air nozzle needs to be at 6”
away from surface of CPM plate.
Testing:
Lab environment should be at 75°F at +/-5°F, relative humidity at
45% at +/-5% RH. Observe offset voltage for no less than 10sec
before recording.
Adjustment
Adjustments to the offset voltage could be made by using an
insulative flat head screw. Balancing pot is location on the side of
controller, where the white plastic cap is covering it.
Specifications
Input Voltage:
120 VAC, 50/60 Hz
220 VAC, 50/60 Hz
Amperage standby:
<50 milliamps
Amperage in use:
<400 milliamps
Fuse:
2ea 1 amp, 5 x 20mm, fast acting
Power Usage:
2.5 watts on, 25 watts in use
Power Cord:
Cord set with IEC connector
Not included
Air Gun:
Two-piece molded ABS
Hose Length:
7 feet
Control Box:
5 1/8”H x 6 3/8”W x 7 1/8”L
Weight:
11 pounds
Air Usage:
3.5 CFM @ 30 PSI
Recommended PSI:
30 PSI to 100 PSI
Air fittings:
1/4” OD tubing with 1/8” NPT
with adjustable needle valve.
Health
There are no known health risks associated with our devices. The
emitters work at about 4-6 kV and can create ozone, but there
have been no significant measurement of ozone from our emitter
sets, as all our existing units test well below the OSHA limit of 0.05
ppm ozone. For additional safety information, see “Dispelling an
Old Myth” written by William Metz of Hewlett-Packard published in
Evaluation Engineering
magazine, September 2001.
• Indoor use
• Altitude up to 2000m
• Temperature 5°C to 40°C
• Maximum relative humidity 80% for temperatures up to
31°C decreasing linearly to 50% relative humidity at 40°C
• Mains supply voltage fluctuations up to ±10% of the nominal
voltage
• Transient overvoltages typically present on the mains supply
• Applicable rated pollution degree is 2
• Degree of ingress protection is IP10
Adjustment screw
© 2010 DESCO INDUSTRIES INC.
Employee Owned
MFG Specifications Recorded Values
Offset voltage
(floating voltage) in
voltage
+/-25 volts
Discharge time,
+1000volts to
+100volts in seconds
2 sec or less
Discharge time,
-1000volts to
-100volts in seconds
2 sec or less
Limited Warranty
Desco expressly warrants that for a period of one (1) year from the date of purchase, Desco
Ionizers will be free of defects in material (parts) and workmanship (labor). Within the warranty
period, a unit will be tested, repaired or replaced at Desco’s option, free of charge. Call
Customer Service at 909-627-8178 (Chino, CA) or 781-821-8370 (Canton, MA) for Return
Material Authorization (RMA) and proper shipping instructions and address. You should
include a copy of your original packing slip, invoice, or other proof of purchase date. Any unit
under warranty should be shipped prepaid to the Desco factory. Warranty repairs will take
approximately two weeks.
If your unit is out of warranty, Desco will quote repair charges necessary to bring your unit
to factory standards. Call Customer Service at 909-627-8178 (Chino, CA) or 781-821-8370
(Canton, MA) for a Return Material Authorization (RMA) and proper shipping instructions and
address.
Warranty Exclusions
THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU OF ALL OTHER PRODUCT
WARRANTIES, EXPRESSED AND IMPLIED, INCLUDING MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY DISCLAIMED.
The express warranty will not apply to defects or damage due to accidents, neglect, misuse,
alterations, operator error, or failure to properly maintain, clean or repair products.
Limit of Liability
Electronic ionizers use high voltage corona discharge and should not be used in or near
flammable or explosive environments. In no event will Desco or any seller be responsible or
liable for any injury, loss or damage, direct or consequential, arising out of the use of or the
inability to use the product. Before using, users shall determine the suitability of the product for
their intended use, and users assume all risk and liability whatsoever in connection therewith.
Figure 10. Balance Adjustment.
