Milltronics Accumass BW100, Инструкция по эксплуатации

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OPERATION
LOAD SENSING
In order for the BW100 to calculate rate and hence totalize material flow along the belt
conveyor, a load signal representative of weight of material on the belt is required.
The load signal is provided by the belt scale. The BW100 is compatible with belt
scales fitted with one or two strain gauge type load cells.
Refer to Specifications and Installation\Load Cell for belt scale requirements
and connection.
SPEED SENSING
In order for the BW100 to calculate rate and hence totalize material flow along the
belt conveyor, a speed signal representative of belt speed is required. In constant
speed applications (no speed sensor), the BW100 can be programmed to provide
an internal speed signal. This is achieved by entering the design speed (P014) and
providing a jumper across speed input terminals (TB1-5/6). Speed constant (P015)
defaults to 100.
For optimum accuracy of the weighing system, both constant and variable speed
applications, a speed sensor is required. Again, the design speed and speed
constants need to be programmed, however the jumper across the speed input has to
be removed and the speed sensor connected.
Refer to Specifications and Installation\Speed Sensor for speed sensor requirements
and connection.
MODES OF OPERATION
Run is the normal or reference mode of operation. It continuously processes the load
signal from the belt scale to produce internal load and rate signals, which are in turn
used as the basis for totalization, mA output and relay control. The run display is
programmed (P081) to scroll through rate, totalization, load and speed; either
manually by pressing the enter key, or automatically. A bar graph is continuously
displayed. It is proportional to the analog output as programmed (see Analog Output).
From the run mode, access to the program mode, and zero and span calibration
is made.
The program mode allows viewing and, with security permission (P000), changing
parameter values. During program, run mode functions are still active, i.e.: rate,
relay, analog output and totalization. Error interrupts are suppressed and the bar
graph is disabled.
If the program mode is left idle for a period of ten minutes, it automatically reverts to
the run mode.
97/07/07
OPERATION
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