Marathon Monitors Inc.
Unipro 3.5 Process Control 1 Aug. 1997
Installation

Installation Location

The UNIPRO instrument is designed for 1/8 inch panel mounting in
a DIN standard opening of 5.43 inches square (adapter panels
available by special order). Required rear clearance is 10.5 inches
to allow for wiring. As with all solid state equipment, the
controller should be away from excessive heat, humidity, and
vibration (refer to specifications). Since the unit uses red LED
display devices, avoid placing it in direct sunlight to reduce
interference with the display's visibility. The instrument requires
100/120/200/240 VAC (jumper selectable on power interconnect
board inside the rear panel) 50/60 Hz. It should not be on the
same circuit with other noise-producing equipment such as
induction machines, large electrical motors, etc. All instrument
wiring must be run separate from all control wiring.
Panel Mounting/Removal
Because the instrument uses a ventilated enclosure, it is not
dust-tight and should therefore always be mounted in a sealed
control panel. To mount the UNIPRO in a control panel, a hole
must be cut 5.43 inches square in the necessary location on the
panel. The following procedure should be followed to mount the
UNIPRO in the panel.
1. Insert the unit into previously cut out 5.43 inches square
hole in the panel.
2. While supporting the unit, insert one slotted clamping
bracket, with head of the bolt facing to the rear of the unit, into the
0.62 inch by 0.82 inch cutout on the side of the unit.