Page 30 - GuardII+ Series 4208 Platform EV User Manual

Installation

• Signal and communications cables shall run along grounded metal surfaces like metal
conduits, metal trunking or ducts, preferably away from power cables. They should
not run on open trays alongside power cables.

• The conduits shall be installed with insulated fixings as required to ensure grounding
only at one end. For conduit sizes follow the local electric codes.

• Shielded cables should have the shield grounded only at one end of cable segments
to avoid circulating currents through the shield.

5.2. Sensor Termination, EOD Boxes and Shaft Trigger Termination
EV accelerometers for a GuardII+ require a separate electro-optical driver (EOD) box that
converts the fiber-optic signals from the sensors into electrical signals for the monitor. Refer
to the appropriate Installation Guides for instructions to install the sensors and
termination/EOD boxes.

Additionally, a Shaft Trigger may be used, which has its own termination, or possibly is
installed with an existing flux termination. Refer to the Shaft Trigger Sensor Installation
Manual for details on the Shaft Trigger termination.

5.3. Mounting Location
Excessive cable lengths distort EV signals. The standard GuardII+ EV installation kit
includes cables for connecting the monitor to the termination box; the distance from the
Terminal Box to the monitor should be less than 3 m (9’). If the cable lengths required appear
to be unavoidably long, please contact Iris Power LP for consultation or possible alternatives.

Figure 5-1 GuardII+ EV Installation Location

Note:
Different GuardII+ monitoring technologies have different installation
location requirements. When deciding on the installation location for the
monitor, be sure to consider all the installed monitoring technologies.

5.4. Preparation

Once unpacked, the EV card should remain for at least two hours at the place of
installation to ensure ambient temperature equalization and to prevent moisture condensation
before energizing.

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