Strata Proximity Systems LLC SPS-USZON Manual Do Utilizador
Confidential
Patent #’s 7,420,471
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Patent Pending
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Strata Proximity Systems Underground Silent Zone Generator Users Manual v1.0
Confidential and Proprietary
December 12,
2011
2011
The Strata label defines the model and serial number of the Underground Silent Zone
Generator also MSHA and Commonwealth of Pennsylvania information.
1.3.1.1
MSHA Blasting Distance
MSHA has published Program Policy Letter P11-V-07 concening Two Way Communications and
Blasting Circuits.
SPS magnetic field generators produce a magnetic field that at 100 kHz or .1000 MHz does not
achieve the Critical H Field until 1.42 m with a blasting cap having a pickup area of 10 sq.
meters.
SPS magnetic field generators are safe to 1.42 m from the blasting caps. SPS does recommend
a minimum distance of 25’ as a precaution.
Blasting Circuits.
SPS magnetic field generators produce a magnetic field that at 100 kHz or .1000 MHz does not
achieve the Critical H Field until 1.42 m with a blasting cap having a pickup area of 10 sq.
meters.
SPS magnetic field generators are safe to 1.42 m from the blasting caps. SPS does recommend
a minimum distance of 25’ as a precaution.
1.3.1.2
Pennsylvania Blasting Distance
At this date, Pennsylvania has not made a recommendation or statement concerning surface
systems.
systems.
1.4 FCC Information
The FCC ID for the Underground Silent Zone Generator is ZQ3-SPS-USZON. When configured by
Strata for underground use, the device complies with Part 15 of the FCC Rules. Operation is
subject to the following conditions:
Strata for underground use, the device complies with Part 15 of the FCC Rules. Operation is
subject to the following conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received including interference that may
cause undesired operation.
(2) This device must accept any interference received including interference that may
cause undesired operation.
Any intentional or unintentional changes or modifications to the configuration of the
Underground Silent Zone Generator not specifically detailed in this document could void the
user’s authority to operate the equipment.