ST-020 and DT-020 Specifications and InstallationAEI Single and Dual Threshold ESD Constant monitors, single user, single wrist strap and ESD MattingNote: 110/120 Volt USA style 3 prong power plugs standard. 220 V overseas units available for any country. Please contact us for pricing on units going overseas.
ST-020 Specifications Single threshold: This unit alarms with high resistance levels
DT-020 Specifications Dual threshold: This unit alarms with high AND low high resistance levels
Connection Diagram for Both Units
1. Mount the AEI-ST020 or DT-020 in a convenient place on the workbench using the Velcro supplied with the unit or the optional mounting bracket. The units are frequently mounted on the underside of the workbench to keep them out of the way. 2. Plug the power adaptor into the ST or DT 020 and into a grounded outlet. Both Led's should turn red and the buzzer should sound. The ground in the outlet is an important part of the system and should also be connected to the ESD common point ground. The outlet and the common point ground can be located at any convenient place on the workbench. 3. Plug the bench cable into the back of the unit and connect it to the bench mat. It should be connected to the opposite side of the mat from the mat ground connection. The BENCH LED should turn green. 4. Plug a wrist strap into the front of the unit and put it on. The OPERATOR LED should turn green. If it doesn't, touch the wrist strap to the common point ground. If the OPERATOR LED turns green then the wrist strap was not making good contact with the Operators wrist.
NOTE: The matting
verification of the 020 series
monitors works best with static dissipative tri layer matting
(like our
UltraComfort or
UltraTough) or
dual layer matting with
a conductive bottom layer and static dissipative top layer (like our
ElectraTherm ESD rubber matting). If using tri layer static
dissipative matting the unit (and ground connection from the
matting) must make contact with the
conductive inner layer of
the esd mat. To insure this contact we recommend
push and cinch
fasteners as the first choice or our
mat snap kit
inserted into a very tight hole that has been punched in the mat.
Some clients hardwire the bench cable to the
fastener (the unit is supplied standard with an alligator
attachment) or use the optional
GC mini snap attachment.
Note: A calibration / test unit is available for the ST/DT-020's. This unit allows the testing of the constant monitors on a "user defined" frequency. The Test Box may be sent back to use on a yearly basis for recertification thus negating the need to take the constant monitors out of service. This recertification may be purchased thru our shopping cart. click here - please follow the directions and thank you for visiting United SCP.
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