Quadbeam MXD73, Installation Manual

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Installation
MXD73 Installation Guide - 11 -
Ins
tallation
Installation – Safety & EMC
This chapter describes how to install the instrument and how to connect the unit to a
power source and auxiliary equipment.
Although today’s electronic components are very reliable, it should be anticipated in any
system design that a component could fail and it is therefore desirable to make sure a
system will
fail safe . This could include the provision of an additional monitoring device,
depending upon the particular application and any consequences of an instrument or
sensor failure.
Wiring Installation
The specified performance of the instrument is entirely dependent on correct installation.
For this reason, the installer should thoroughly read the following instructions before
attempting to make any electrical connections to the unit.
CAUTION ! : ALWAYS REMOVE THE MAIN POWER FROM THE SYSTEM BEFORE ATTEMPTING
ANY ALTERATIONS TO THE WIRING. ENSURE THAT BOTH POWER INPUT LINES ARE
ISOLATED. MAKE SURE THAT THE POWER CANNOT BE SWITCHED ON BY ACCIDENT WHILST
THE UNIT IS BEING CONNECTED. FOR SAFETY REASONS AN EARTH CONNECTION MUST BE
MADE TO THE EARTH TERMINAL OF THIS INSTRUMENT.
LOCAL WIRING AND SAFETY REGULATIONS SHOULD BE STRICTLY ADHERED TO WHEN
INSTALLING THIS UNIT. SHOULD THESE REGULATIONS CONFLICT WITH THE
FOLLOWING INSTRUCTIONS, CONTACT QUADBEAM TECHNOLOGIES OR AN
AUTHORISED LOCAL DISTRIBUTOR FOR ADVICE.
To maintain the specified levels of Electro Magnetic Compatibility (EMC, susceptibility to
and emission of electrical noise, transients and radio frequency signals) it is essential that
the types of cables recommended within these instructions be used. If the installation
instructions are followed carefully and precisely, the instrument will achieve and maintain
the levels of EMC protection stated in the specification. Any equipment to which this unit
is connected must also have the same or similar EMC control to prevent undue interference
to the system.

Terminations at the connectors should have any excess wire cut back so that a
minimal amount of wire is left free to radiate electrical pick-up inside or close to the
instrument housing.

The rear input card cover of the panel mount unit must be correctly re-assembled and
securely fastened to maintain a continuous electro-magnetic shield around the instrument.
N.B.
The use of CE marked equipment to build a system does not necessarily mean that the
completed system will comply with the European requirements for EMC.