Rice Lake SCT20-AN, Техническое руководство

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IMPORTANT
Configuration
© Rice Lake Weighing Systems ● All Rights Reserved 15
All other settings are expressed in weight value. To convert them to the new unit of measurement, perform a
Theoretical Calibration For Other Units Of Measure on page 14 or a Weight (Span) Calibration For Other Units Of
Measure on page 15 to change the system calibration. The parameter

must remain set to 1.0000.
Theoretical Calibration For Other Units Of Measure
Set in the parameter the

value divided by the conversion coefficient from kg to the new unit of measure.
Example: The 4 load cells of 1000 kg are placed under a scale for olive oil, which has a specific gravity of 0.916 kg / l. Setting
the  = (4x1000) / 0916 = 4367, the system works in liters of olive oil. See Section 2.1.7 on page 13 .
Weight (Span) Calibration For Other Units Of Measure
Load a known quantity of product litres on the scale (use as high a percentage of the maximum quantity to be weighed as
possible) and enter in the parameter  , the product loaded value in litres. See Section 2.1.7 on page 13 .
2.2 Filter On The Weight
The filtering selection is used to eliminate environment noise, and is typically a compromise between responsiveness and
stability. The lower the number, the more responsive the display will be to weight changes. The filter is used to stabilize a weight
as long as the variations are smaller than the corresponding Response Time. The filter setting is dependent on the type of
application and the required update rate. See Table 2-5 on page 15
.
Setting the parameter allows a stable weight display to be obtained. To increase the effect (weight more stable), increase value.
1. Press and hold , then press .

is displayed.
2. Press or until  is displayed.
3. Press . The currently programmed filter value is displayed.
4. Press or until desired filter value is displayed.
5. Press
to accept. The current weight will then display with all LEDs scrolling and the displayed stability can be
experimentally verified.
• If the stability is not satisfactory, press twice. This returns the indicator to the

option and the filter may
be modified again until an optimum result is achieved.
• If the stability is satisfactory, press . Do not proceed until

is displayed.
• Press once to set the anti-peak filter.
Note
The anti-peak filter can only be set if the instrument is connected to one load cell. When the weight is stable, the anti-
peak filter removes any sudden disturbances with a maximum duration of one second.
6. Press or to display  or 
7. Press to accept.

is displayed.
8. Press to exit setup menu.
Table 2-5. Filter Values
Filter Value
Response Time
[ms]
Display and Serial Port Refresh Frequency
[Hz]
0 12 300
1 150 100
2 260 50
3 425 25
4* 850 12.5
5 1700 12.5
6 2500 12.5
7 4000 10
8 6000 10
9 7000 5
Anti-peak 6 600
* Indicates default value.