TM 5-3895-374-24-2
955-257
1.4 MOUNTING
HAZARD:
INSURE THAT ALL POWER AND MEASURING CIRCUITS ARE DISCONNECTED BEFORE
INSTALLATION IS ATTEMPTED.
In the normal course of installation and operation, there is no reason to remove the electronic assembly from the case. If
the electronic assembly is removed, SPECIAL PRECAUTIONS MUST BE TAKEN IN HANDLING THE CMOS
INTEGRATED 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 by
pressing in the tabs on each side of the bezel and carefully pulling the assembly out of the case. When digital
communications is included, a ribbon cable connector must be pulled from the middle board before the assembly can be
removed. When reinstalling the electronics assembly, make sure that the unit is inserted right side up and that all boards
are firmly in their connectors.
The controller is designed for mounting in a control cabinet or rack where access to the rear terminals is enclosed and
where supply and load wiring can be properly terminated and enclosed. Prepare a standard 1/4 DIN panel cutout of 3.620
inches 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 the
rear 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 over
the 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 that
the 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 inches
on center.
ECLIPSE INSTRUMENTATION DIVISION
page 3 - 1082
