Rice Lake TradeRoute HL Series - M2000 Scale - Manual (Page 42)

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 2 COM1 serial output string locked on channel 2
 3 COM1 serial output string locked on channel 3
 4 COM1 serial output string locked on Total mode
8.10 Scale Filtering Parameters
19 Display Update Rate (0)
This parameter will set the LED display update rate. The update rate has
nothing to do with the actual AD converter update rate or filtering. The
parameter may have a value between 0-9. A value of 0 will introduce no delay
in the display update, while a maximum value of 9 will introduce a display
update rate of a 3-second delay. The update rate at a value of 0 is very fast and
the display may appear jittery in some applications. In this case increase the
value of this parameter.
41 Digital Averaging Filter (64)
Changing this parameter changes the mount of averaging performed on the final
weight. This function is used to help filter the scale from vibrations and display
a stable weight. The default setting should be adequate for most installations
however if heavier filtering is required then increase the filter value. Changing
the filter does alter the settling time for the final weight response. Values that
can be entered are 1-255 followed by the [TARE] key. The higher the number
the heavier the filtering. Error 14 is displayed for an invalid entry.
42 Filter Faststep threshold (8)
The filter averaging system has a filter bypass mode called faststep. Faststep
dramatically improves the display response time for a step change in weight.
When the faststep mode is active the digital averaging filter is bypassed
(parameter 41) displaying an instant change in weight. The threshold or the
amount of instant weight change that has to occur before the indicator is to go
into faststep mode is defined by this parameter. This parameter normally does
not have to be changed. Let us look at an example, we have a 500lb-floor scale.
The faststep value is 8. If a 200 pound man jumps on the scale, the scale will go
into faststep mode, bypassing the averaging filter and displaying a quick jump to
200lbs. When the final weight is settling filter averaging is returned back to
normal weight averaging. If you place a 5 pound weight on the scale the faststep
will not kick in and the weight change will be a little slower. How slow the
weight changes to the 5lb load is a function of parameter 41.
43 Fastep Sensitivity (8)
This parameter normally does not need to be changed, and may be removed in
future releases of the software. This parameter controls how sensitive faststep
is to be (see parameter 42). The value entered here indicates how many AD
samples the weight has to change in a row before the faststep filter kicks in.
For example a 200 pound man jumps on a 500 pound scale. The “Faststep
parameter” 42 has been set to 20 and the “Fastep Sensitivity” parameter 43 has
been set to 5. Only when a weight change of more than 20lbs and has occurred
5 samples in a row then the filter averaging will go into fastep