USER WARNINGS
RECOMMENDATIONS FOR THE PROPER USE OF WEIGHING INSTRUMENT
-Keep away from heat sources and direct sunlight
-Do not wash with water jets
-Do not dip in water
-Do not spill liquid on the instrument
-Do not use solvents to clean the instrument
-Do not install in areas subject to explosion hazard
-If the working temperature reaches the permitted limits, it is advisable to distance the
instrument to ensure adequate air flow and avoid malfunctions (Example: sudden
shutdowns or disconnections)
The terminals to be connected to ground as indicated in the instrument's wiring
diagram, must have the same potential as the weighed structure (same earthing pit or
earthing system). If you are unable to ensure this condition, connect a grounding
wire from the terminals of the instrument (including the terminal - SUPPLY) to the
weighed structure.
The cell cable should be individually led to its panel input should not share a conduit
with other cables, connect it directly to the instrument terminal strip without breaking its
route with support terminal strips. Use "RC" filters on the instrument-driven solenoid
valve and remote control switch coils. Avoid inverters in the instrument panel. If
inevitable, use special filters for the inverters and separate them with sheet metal
partitions. The panel installer must provide electric protections for the instruments (fuses,
door lock switch etc.). It is advisable to leave the equipment always switched on to prevent
the formation of condensation.
MAXIMUM CABLE LENGTHS
-RS485: 1000 meters with AWG24, shielded and twisted cables
-Analog current output: up to 500 meters with 0.5 mm2 cable
-Analog voltage output: up to 300 meters with 0.5 mm2 cable
INSTALLING LOAD CELLS: the load cells must be placed on rigid, stable in-line
structures. It is important to use the mounting modules for load cells to compensate for
misalignment of the support surfaces.
CONNECTING SEVERAL CELLS IN PARALLEL: connect several cells in parallel by
using a watertight junction box and terminal box if necessary. The cell connection
extension cables must be shielded, led individually into their piping or conduit and laid
as far as possible from the power cables (in case of 4-wire connections, use cables with
4x1 mm2 minimum cross-section).
RECOMMENDATIONS FOR INSTRUMENT INSTALLATION
RECOMMENDATIONS FOR LOAD CELL INSTALLATION
Interface Inc, www.interfaceforce.com
INF1 Installation & User Manual 15-352
