Title: Hardware Installation Guide.pdf
Mount the MR-1824 reader on a non-metallic surface. Metal sheets, screens, plates, studs, posts, structural members, etc. should be about one foot away from the reader, in all directions.revision 6 — 495LenelProx ReadersIf there is metal behind the MR-1824 reader, such as the mounting plate on a gooseneck post or pedestal, use a non-metallic housing for easy installation and wiring. Or use plaster or plastic or wood spacers for at least 4 inches between reader and metal.Do not mount the reader inside a metal housing, enclosure or room. Do not recess the reader in an opening in a metal surface.Metal CompensationIf the reader must be mounted on metal, use the LPMR-1824 MC metal-compensated version.The LPMR-1824 MC reader must be installed on a metal sheet or plate that is larger than the 8 x 8 inch reader case. A plate that is 12 inches square to 24 inches square is effective.If the metal-compensated LPMR-1824 MC reader is used, the plastic housing or spacers are not necessary.