Instrument Mechanical Installation

Section 3: Instrument

3.3 Installation

3.3.1 Instrument Mechanical Installation

The XDT is available in several different physical configurations. Please follow the instructions below, which describe the instrument being installed. The sensor installation is discussed in Sec- tion 2: Sensor and Sampling Techniques.

3.3.1.1 XDT-PM (DIN43700) Enclosure Installation

The standard XDT-PM is provided with two clip-on compression panel mounting brackets. These brackets allow the user to mount and secure the instrument onto a properly cutout panel (137mm x 67mm). Consult with drawing in appendix E, for all relevant dimensions. Installation is accom- plished by attaching 2 clips, one on each side of instrument, and inserting the instrument into the panel cutout. Pressure must be applied along edges of instrument until it is firmly seated.

The XDT-PM may be ordered with an environmental seal option. This option provides a gasket (installed at the factory) to seal the face plate to the enclosure box, and a gasket (to be installed by the user) to seal the enclosure box to the user’s mounting panel. To achieve a good environmental seal the XDT-PM must be mounted onto a rigid flat panel with a cutout according to the specified dimensions, using the provided panel gasket and all four provided mounting brackets. The instructions listed below should be followed.

•If the clip-on mounting brackets are installed on the instrument enclosure, remove them.

•Make sure that the panel gasket is flat and even around the box bezel. Handle the gasket care- fully as not to tear it.

•Insert the box into the user’s panel cutout, consult with drawing in appendix E for proper panel cutout dimensions.

•Attach all four mounting brackets to the instrument enclosure from the rear of the panel, make sure they are fully locked in.

•Use a screwdriver to tighten the mounting bracket screws, all four screws should be tightened uniformly, the panel gasket should be compressed.

3.3.1.2 XDT-NEMA (IP65) Enclosure Installation

The instrument can be installed as a wall or panel surface mount, by making use of four screw holes on the back (bottom) of the instrument enclosure. Open the instrument cover for access to these screw holes. They are located at the corners of the enclosure and outside of the NEMA seal. Do not drill other mounting holes, as you may compromise the seal. Refer to Appendix E for all relevant dimensions.

3.3.1.3 XDT-OEM bare board Installation

When mounting the circuit board in a user supplied enclosure using standoffs, be sure to use insu- lating washers. Refer to Appendix E for mounting hole dimensions and required mounting dimen- sions.