_NV Ron 2000 4.2
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3/25/2016
9.12 Multiple Wire Rope Falls Option (if included)
Enter into the options menu by following the instructions in section 9.
Scroll to
MULTI
and press
ENTER
. This display will show the number of
times the load value will be multiplied by (number of rope falls). Use the
arrow keys ↑↓ to change the number (1-20). Press
ENTER
. The display will
flash
OK
, then the number selected, and will then revert back to the options
menu. Select another option or press
ESC
to exit the options menu.
This function is designed to enable the system to be used when the load cell
is connected to a single load suspending cable in a multi-cable suspended
loading. An example would be when the load cell is connected to the dead
end of a multiple wire rope falls crane. The multi option helps the user by
multiplying the measured weight by the number of wire ropes the load is
actually suspended by.
The load cell senses one wire rope fall in a crane reeving of four wire rope
falls; the system will multiply the sensed load by four and display the result.
The system will multiply the sensed load by any number selected by the user
to suit the actual reeving arrangement for a given set up. The overload
threshold levels also receive the correct values which are the normal
threshold levels multiplied by the number of falls.
The set points are also multiplied by the multi number automatically.
Best Practice
When weighing with multiple rope falls, the friction created by the
pulleys will have an effect on the displayed load. This friction will
always be in opposition to the direction of the load's movement.
When lifting, the displayed value will be that of the load + the force
of the friction. When lowering, the opposite will be true and the displayed valued will
be less than the actual load. We recommend that measurements are taken either only
while lifting, or only while lowering the load, with the latter being preferred. This will
minimize the error in the displayed load.
9.13 Dampened Reading aka Averaging (if
included)
To switch on the dampening mode, press
ZERO + TARE
simultaneously. The
display will show
AVR.ON
.
