TM 5-3895-374-24-2955-2571.4 MOUNTINGHAZARD:INSURE THAT ALL POWER AND MEASURING CIRCUITS ARE DISCONNECTED BEFOREINSTALLATION IS ATTEMPTED.In the normal course of installation and operation, there is no reason to remove the electronic assembly from the case. Ifthe electronic assembly is removed, SPECIAL PRECAUTIONS MUST BE TAKEN IN HANDLING THE CMOSINTEGRATED CIRCUITS TO PREVENT STATIC DISCHARGES FROM CAUSING DEVICE FAILURE.The entire electronic assembly can be removed from the case for servicing without disturbing the rear terminal wiring bypressing in the tabs on each side of the bezel and carefully pulling the assembly out of the case. When digitalcommunications is included, a ribbon cable connector must be pulled from the middle board before the assembly can beremoved. When reinstalling the electronics assembly, make sure that the unit is inserted right side up and that all boardsare firmly in their connectors.The controller is designed for mounting in a control cabinet or rack where access to the rear terminals is enclosed andwhere supply and load wiring can be properly terminated and enclosed. Prepare a standard 1/4 DIN panel cutout of 3.620inches by 3.620 inches (92 X 92 mm) and insert the instrument into the panel cutout. The U-shaped mounting bracket,supplied with each unit, is installed from the rear of the controller and held in place by two threaded studs mounted on therear case. Tighten the bracket with the hardware supplied to insure a snug fit.Overtightening may cause the rear of the case to bow. To prevent this, a washer of the panel thickness may be used overthe stud between the case and the bracket.The controller has been designed for panel mounting with natural convection cooling. When installing the unit, be sure thatthe case label and the rear vents are on the top side. Allow adequate clearance for proper air circulation.PANEL CUTOUT 3.620 X 3.620 +.000/-.039 (92 X 92 mm)NOTE: For panel mounting of two or more units, use a minimum horizontal spacing of 4.5 incheson center.ECLIPSE INSTRUMENTATION DIVISIONpage 3 - 1082
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