Installation - Cardinal 748 Technical/Operation Manual

AUTO-ON
AUTO-ON jumper J7, when connected, will
cause the indicator to power on automatically
whenever power is applied to the power input
connector. If power is lost momentarily and
then reapplied, the indicator will turn on
without pressing the ON key. See figure no. 11
for location.
DOMESTIC/INTERNATIONAL JUMPER (J12
DOM/INT)
Remove the jumper to comly with OIML
requirements. The 748 will perform the
following functions: 1.
performed on power-up.
2. The date format will be day/month/year.
3. The printout of keyboard tare will be
designated as "PT."
LOAD CELL CONNECTIONS WITH OVER
30 FEET OF CABLE
For installations with over 30 feet of cable
between the indicator and the load cells,
sense wires should be used. The sense wires
must be connected between the +SENS, -SENS terminals on the indicator and the +EXCITATION, -
EXCITATION wires of the load cells or the +SENS, -SENS terminals of the load cell trim board or
the section seal trim board. For the indicator to use the sense wires, the +SENS jumper J1 and the -
SENS jumper J3 must be open (see figure no. 11).
The Model 748 Weight Indicating Instrument is available in either stainless steel desktop enclosure
or a NEMA 4X stainless steel wall-mount enclosure. Determine which enclosure version you have
and refer to the appropriate section for installation and interconnection.
8.000"
figure no. 1 - wall
mounting bolt layout
The 748 desktop enclosure may be mounted on a desktop or other smooth, flat, horizontal surface
or may be mounted on a wall. Refer to figure no. 1 for a layout of wall-mounting bolts. Regardless of
the manner in which the instrument is installed, the location should be free from temperature
extremes and water. It should be a location where the display is easily viewed and the keyboard is
within easy reach of the operator. If wall mounted, make certain the structure and mounting bolts
are of sufficient strength to retain the 748.

INSTALLATION

NO!
32˚-
TEMPERATURE EXTREMES
A "lamp test" will be
DESKTOP ENCLOSURE
Clearance for
#10 size screw
2
DON'T EXPOSE
TO DIRECT SUNLIGHT
-110˚
DON'T EXPOSE TO
NO!
PROVIDE ADEQUATE
PROTECTION TO
MINIMIZE LIGHTNING
KEEP THE AREA AROUND THE SCALE
DAMAGE
TO PROVIDE ADEQUATE AIR CIRCULATION
CAUTION! When in parallel runs, locate
Load Cell cables a minimum of 24" away
from all AC wiring.
NO!
DON'T PLACE IN FRONT OF
HEATING/COOLING VENTS
NO!
?
PROVIDE GOOD, SAFE GROUND
AND CLEAN AC POWER
CLEAR
.203"
.375"