MMS GENERAL
OVERVIEW
MMS-3000 Principle of Operation
With the MMS-3000 moisture or ash multi-sample quick analyzer (patented)
samples are analyzed by weight loss. The furnace is always hot. Crucibles and
samples are first weighed on an external balance and immediately
placed in the empty position on the furnace top. The instrument has an
ejector pedestal to raise and lower the crucibles. When "enter" is
pressed on the keyboard,
the crucible is lowered to the internal carousel and the cycle
for that sample starts. Samples are weighed constantly in the
internal balance located below the furnace. After
obtaining weight stability and results, the crucible is
automatically raised for removal the next time the operator
weighs a new sample on the external balance.
The extraction of samples does not need operator
attention. The samples are removed by the operator when the
operator weighs a new crucible and sample for analysis. A
crucible with results is replaced by the pre weighed crucible already
on the external balance.
The internal carousel holds 16 crucibles (Fifteen (15) available for use
and one (1) reference crucible to compensate all crucibles for
crucible weight variations due to heat). There are models with different
crucible/sample quantities available.
This is not a batch analyzer. Crucibles come in and go out automatically.
Samples do not affect each other due to
different analysis time. Each sample has its own analysis
time according to weight and moisture or ash content. The ones
that have been analyzed will be removed automatically when a new crucible
with sample is presented for analysis.
Typical Analysis Time for 15 Samples
|
Moisture in
coal
|
25 - 30
minutes
|
|
Ash in
coal
|
25 - 35
minutes
|
|
Moisture or ash in
cement
|
20 - 30
minutes
|
|
Moisture in
flour
|
30 - 40
minutes
|
|
Ash in flour for 2
grams
|
120
minutes
|
MMS-3000 ADVANTAGES
-
The operator weighs crucibles
and samples during the analysis time using the same PC that
manages the instrument.
Time is not wasted in getting the initial weights of
crucibles and samples and entering the sample
identification codes because initial weights are not
obtained inside the instrument but on an external balance during
analysis time.
-
Samples of different materials can be analyzed
simultaneously. Sample analysis time does not
affect other samples. The first to be analyzed is the
first to be removed by the operator when the operator weighs
another crucible and sample.
-
No time wasted in heating and cooling to start a new
batch as in competitors TGA. The furnace is
always hot and operates in a continuous process.
All heated parts
inside furnace are made of a stainless steel alloy to withstand high
temperatures (carousel, pedestal, etc.).
The carousel does not bend nor warp under temperature stress.
Metal does not break like ceramics.
Ceramic crucibles may charge with static electricity and produce
unstable balance readings.
Metal crucibles can be used and also ceramic crucibles as an option for analysis of some materials
Sitemap