Maguire Products Weigh Scale Blender WSB, Руководство по эксплуатации и техническому обслуживанию

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M A G U I R E P R O D U C T S , I N C .
Edition: August 5, 2014
49
W E I G H S C A L E B L E N D E R
®
Parameter List – Full Explanations
Parameters –
Parameters are grouped into the following categories: Control Times, Vibration
Control, Weight Limits, Components, Regrind Control, Mixer Control.
Control Times
DLY Consider changing if mixing is a problem
DLY is the TIME the mix chamber level sensor must be uncovered before a cycle begins. The
sensor must be uncovered without interruption for the full specified DELAY time. To prevent false
starts from material movement caused by the mix blade, a minimum of 2 seconds (00488) is
recommended.
Sometimes throughput is slow enough that each new batch buries the mix blade for a while. When
this happens the material on top does not mix well. To reduce this, you can delay the start of a new
batch by increasing the DLY parameter. The new batch is delayed and mix chamber level has time
to fall before the next batch is added.
DTI Probably no need to ever change this
DTI is the maximum TIME allowed for the weighing bin to dump at the end of the cycle. The
software will close the bin earlier if it detects no weight change occurring. This time determines the
maximum time that is allowed for the bin to empty. We set this maximum time limit according to the
model and batch size.
STL No change required
STL is the TIME period allowed to pass after a dispense has occurred, but before a weight reading
is taken. This settle time allows falling pellets to reach the bin and also prevents their impact with
the bin from adding to the weight reading.
SBO - Sensor Blow Off
If SBO is set to a value, the Weigh Scale Blender will pulse the FCV valve by a specified pulse
length and specified delay in between pulses for the purpose of clearing dust and particles from the
face of the sensor. This is a 5-digit parameter. The first digit (X0000) sets how many times the
blow off will pulse every cycle. Example: 1=10, 2=20, 3=30 etc. The second and third digits sets
the off time in seconds. The fourth and fifth digits sets the on time in milliseconds. If needed, the
recommended SBO parameter setting is 23002, which would set a blow off every 30 seconds for
200 milliseconds up to 20 times as long as the sensor is covered. You can adjust the last digit to
increase or decrease the pulse.
Vibration Control
KDF Typically No change required -
Change only if you have an extreme vibration problem
WDF
KDF and WDF are the maximum acceptable variation in GRAMS between two consecutive
weight readings. One weight reading requires 1 second of time. Two readings are always taken
and they must be within KDF grams of each other to be accepted as valid. Readings are taken
continuously until two consecutive readings meet the criteria. This prevents a single accidental
bump of the scale from causing a grossly inaccurate reading. WDF also allows the first digit to
determine how long a reading is taken. A 1 in the first position indicates ½ second per reading. 2
means 1 second, 3 means 1.5 seconds, up to 5, which is 2.5 seconds. The higher this number the
slower the blend rate, but the more reliable the readings.