Error Corrections: Rate Numbers (Data Line 2); Dispense Timing: (Data Line 3) - Conair GB User Manual

Gb and wsb series gravimetric blenders with 12-component control
Hide thumbs Also See for GB:
Table of Contents

Advertisement

ERROR CORRECTIONS:
The RATE numbers are used by the software, each cycle, to calculate
material dispense times.
rates stabilize.
adjusts the RATE numbers.
The GRAM number is adjusted first.
changed only if the GRAM number goes below 16,000 or above 32,000
(approximately).
or halved to bring the GRAM number back to between 16,000 and 32,000.
This serves to keep all numbers as large as possible allowing for the
most accurate math, but not so large as to overflow the registers.
Only the GRAM number changes from cycle to cycle, except under the
conditions noted above.
Check the GRAM number for a series of consecutive cycles.
remains unchanged, then the dispenses are accurate enough to not
trigger error corrections.
(MI and NC) that determine when error corrections occur are somehow out
of range preventing corrections that should be occurring.
The PRC parameter limits adjustments to 10 percent.
single GRAM number change larger then 10 percent.
A gradual decrease in the GRAM number indicates a slowing rate, a
hopper that is becoming empty for example.
GRAM number) occurs when the hopper is refilled.
If Errors are occurring, but the GRAM number is NOT adjusting, check
the NC parameter and the MI parameter.
error corrections occur.
the software.
MI is set after each start up, after 10 cycles have run
without retries.
dispense rate expressed as grams per second.
NC adjusts slowly over extended periods of running.
grams, the upper limit of the error in 60 percent of the dispenses.
high number usually indicates poor flowing material.
drifting load cells are other possibilities.

DISPENSE TIMING: (DATA line 3)

The second number is the number of interrupts calculated to dispense
the material.
If these times are consistent but the weight of the
first dispense varies, then the material does not flow well, or
consistently.
Another possibility is excessive vibration or
interference with the weigh bin.
Excess vibration, particularly on small dispenses, may cause incorrect
weight readings even though the weight dispensed was, in fact, correct.
If the timing number is very small, 10, 20, 30 interrupts, perhaps this
is asking too much from a slide valve.
RATE NUMBERS.
They are adjusted every cycle until flow
When a significant error is detected, the software
In this event both GRAM and TIME numbers are doubled
Another possibility is that the parameters
Both are set and adjusted automatically by
MI will be set to indicate 50 percent of normal
Page 78
(DATA line 2)
The TIME number (interrupts) is
A jump in rate (increased
These control weather or not
Very short times mean you want
If it
Do not expect any
NC indicates, in
A
Vibration or

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents