l
Those made completely of iron
l
A reinforced concrete square with welded mesh.
Common manhole constructions that do not block signal transmission like a Faraday Cage include:
l
A standard manhole with an iron or cast iron lead cover.
l
A manhole of bricks.
l
An asphalt square.
l
Vehicles parked over a manhole cover.
The table below can be used to see if wireless probes can be installed at a site with an unblocked signal
from the probes to the receiver.
NOTE:
When a highly attenuated signal can occur, put the probe antenna outside of the
manhole. "Repeaters" can be installed to boost or extend the signal if necessary.
Doc. No.: M2010-EU Rev.: 13
Page 129 of 149
Summary of Contents for M2010-EU
Page 6: ...Warranty 147 Doc No M2010 EU Rev 13 Page 6 of 149...
Page 20: ...Main Board Connections Jumpers and LEDs Doc No M2010 EU Rev 13 Page 20 of 149...
Page 21: ...Conduit Installation Doc No M2010 EU Rev 13 Page 21 of 149...
Page 22: ...Field Wiring Diagram Doc No M2010 EU Rev 13 Page 22 of 149...
Page 32: ...Doc No M2010 EU Rev 13 Page 32 of 149...
Page 38: ...924B Probe Installation DMP Probe Installation Doc No M2010 EU Rev 13 Page 38 of 149...
Page 41: ...Doc No M2010 EU Rev 13 Page 41 of 149...
Page 86: ...Typical Installation Drawings 30 0230 S Doc No M2010 EU Rev 13 Page 86 of 149...
Page 110: ...Appendix C Declaration of Conformity Doc No M2010 EU Rev 13 Page 110 of 149...
Page 111: ...Doc No M2010 EU Rev 13 Page 111 of 149...
Page 112: ...Doc No M2010 EU Rev 13 Page 112 of 149...
Page 113: ...Doc No M2010 EU Rev 13 Page 113 of 149...
Page 142: ...Doc No M2010 EU Rev 13 Page 142 of 149...
Page 146: ...Doc No M2010 EU Rev 13 Page 146 of 149...
Page 149: ......
