m
2000D
technical manual
Page 4
T
YPES
O
F
S
CALE
S
YSTEMS
S
UPPORTED
The M2000D targets two main types of industry scales, hopper and sectional scales.
Hopper scales consist of 2, 3 or 4 cells. In a hopper system each cell is usually referred to
as a corner. Each corner represents a load cell channel on the DLC slave. A hopper scale
can be assigned to any of the 3 scale channels of the M2000D indicator.
The service personnel have the ability to perform corner corrections (field corrections)
during calibration to compensate for small non-linear offsets in load cell values.
No access to the junction boxes are required to setup the system. All load cell corrections
are done in software as part of a calibration setup, from the M2000D indicator keyboard.
The system stores information in the DC slaves as part of a calibration.
The other type of scale targeted by the M2000D is the sectional scale as implemented in
vehicle scales. A sectional scale consists of 2 or more sections, of which each section
consists of two paired load cell channels. The service personnel have the ability to perform
corrections on a section by section basis or even on a corner basis if required.
DLC C
HANNEL
A
LLOCATION
There can be a total of 2 DLC slaves in a digital system, referred to as the (
P
)rimary and
(
S
)econdary DLC slaves. The status LED on each slave indicates whether it is the
primary or secondary slave.
Please consult the section on general diagnostics for more
information on the status LEDs
.
The slaves are configured as (
P
)rimary or (
S
)econdary slave using the ID select jumper on
the DLC terminal box respectively.
The slaves are labeled as outlined in
Figure 2
. If the DLC board is set to be a secondary
slave, then the load cell channel numbering will be assigned as (
S
)econdary 1-8, and
(
P
)rimary 1-8 if the slave was configured for the primary slave. As outlined in
Figure 2,
the analog to digital converter terminals are refered to as cells. Each cell will represent a
corner as part of a scale allocation. The allocation process of a scale that involves
multiple load cells are automatically assigned to unallocated cell terminals. The user does
not have to manually select and allocate cells for a scale setup.
