NMI/Signature Series: MC-Pro 1500 - Woodproductsonlineexpo.com
NMI/Signature Series: MC-Pro 1500 - Woodproductsonlineexpo.com
NMI/Signature Series: MC-Pro 1500 - Woodproductsonlineexpo.com
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<strong>NMI</strong> <strong>Signature</strong> <strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
<strong>NMI</strong>/<strong>Signature</strong> <strong>Series</strong>: <strong>MC</strong>-<strong>Pro</strong> <strong>1500</strong><br />
Sawmill Transverse Moisture/Density Sorter<br />
(<strong>Pro</strong>prietary and Confidential)<br />
Presented by www.wpsi.<strong>com</strong>
<strong>NMI</strong><br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
Northern Milltech<br />
- Company Outline -<br />
NORTHERN MILLTECH INCORPORATED (<strong>NMI</strong>)<br />
is a World leader in the development and provision<br />
of moisture content verification and analysis<br />
products for sawmill applications. Market driven<br />
innovation, reliable products and a reputation for<br />
service has grown <strong>NMI</strong> to where it is the industry<br />
choice for sawmill, planermill and in-kiln moisture<br />
meter equipment and software.<br />
Digital pulse sensing, auto temperature<br />
<strong>com</strong>pensation and background noise suppression<br />
are three of many innovations that ensure the<br />
accuracy of our meters in all conditions.<br />
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<strong>MC</strong> <strong>Pro</strong> <strong>1500</strong><br />
<strong>NMI</strong><br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
System Overview<br />
<strong>MC</strong>-<strong>Pro</strong> <strong>1500</strong><br />
Transverse Sawmill sorting system<br />
The <strong>MC</strong>-<strong>Pro</strong> <strong>1500</strong> moisture/density meter presorts<br />
green lumber for improved kiln drying. The result is less<br />
deviation going into the kiln which equates to less deviation<br />
<strong>com</strong>ing out, optimized drying times, improved grade<br />
recovery and a decrease in trim loss<br />
3
<strong>NMI</strong><br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
<strong>1500</strong> Theory of Operation<br />
The <strong>NMI</strong> moisture/density sorter is an electronic based sensing system which is used in the sawmill and planer<br />
to detect and sort lumber according to the moisture content and density of the piece. Moisture content of the<br />
lumber is the significant determining factor up to fiber saturation and density be<strong>com</strong>es more prevalent beyond<br />
this point. The system is extremely robust and virtually maintenance free.<br />
<strong>NMI</strong> Moisture Sensor<br />
Wood<br />
The heart of the <strong>NMI</strong> system is the moisture/density sensor head. This injects an electric field into the wood<br />
and monitors the response. The electronics in the sensor use a proprietary method to inject the electric field<br />
lines which give very consistent and repeatable readings. It does this with a consolidated sensor which is in<br />
full contact with the wood. As the above diagram illustrates, the electric field lines penetrate below the<br />
surface of the wood.<br />
A big advantage of the <strong>NMI</strong> system of sensing is that surface moisture does not significantly impact the<br />
readings. This is important in a mill where water or coolant is used on the saws which may have wet the<br />
lumber surface.<br />
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<strong>NMI</strong><br />
Temperature Compensation<br />
• One of the first big hurdles that<br />
<strong>NMI</strong> had to over<strong>com</strong>e in<br />
developing the system was the<br />
effects of frozen wood. Frozen<br />
wood changes the MD reading due<br />
to the change in the structure of<br />
the water. The MD readings<br />
be<strong>com</strong>e lower and make it very<br />
difficult to distinguish the wet<br />
pieces. <strong>NMI</strong> has done extensive<br />
research and have developed a<br />
method using on-line temperature<br />
sensing which effectively<br />
<strong>com</strong>pensates for the effects of<br />
frozen wood. The system,<br />
therefore needs little or no<br />
adjustment between summer and<br />
winter conditions.<br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
Infra red Temperature Sensor<br />
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<strong>NMI</strong><br />
The Sorter Hardware and Software<br />
• The sorter hardware consists of four (minimum) to eight (maximum) sensors on the<br />
line which ride on the lumber to take the readings. In order to get effective readings<br />
the sensors must be in full contact with the wood. The sensor heads are mounted on<br />
hardware which is spring loaded in order to apply consistent pressure to the wood.<br />
For a dimension line the eight sensors are configured with four sensors mounted<br />
above the line and four sensors mounted below in a transverse configuration (i.e. the<br />
lumber arrives at all eight sensors at the same time). The top and bottom mounting<br />
hardware are different due to the fact that the top mounting hardware must swing out<br />
of the way for jam-ups and larger pieces of wood. The hardware is designed to<br />
ac<strong>com</strong>modate multiple thickness' running together.<br />
• The rest of the system consists of the main control unit (<strong>MC</strong>U), distribution boxes,<br />
cabling, on-line photocells and IR temperature sensing. Sort parameters for each<br />
piece are passed to the <strong>NMI</strong> system from the sorter PLC and a moisture/density sort<br />
reading returned. The parameters may be any <strong>com</strong>bination of thickness, width,<br />
length, species and grade or, the user may simply select a fixed dimension as may be<br />
the case in a planer drop out application.<br />
• This is an embedded system at the <strong>MC</strong>U which handles all the <strong>com</strong>munication to and<br />
from the sensors, calculation of the moisture/density content of the lumber, interface<br />
to the line PLC and user interface. This is a user friendly, menu driven program<br />
which is easy to learn and difficult to program incorrectly. Through the nearest<br />
network hub the <strong>MC</strong>U is connected to a reporting <strong>com</strong>puter or, if this network is<br />
unavailable <strong>NMI</strong> can supply a stand alone system for this purpose.<br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
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<strong>NMI</strong><br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
Sorting Advantage.<br />
•The premise behind the development of this system was “the less<br />
deviation you have going into the kiln the less you will have <strong>com</strong>ing out”<br />
and over 100 installations later, is industry recognized as an extremely<br />
cost effective way of increasing grade out turns and decreasing trim loss.<br />
You can see that even just pulling out the<br />
wettest 15% of the pieces will substantially<br />
reduce the deviation going out to the kiln.<br />
Reducing the drying time on the dryer sorts<br />
will reduce the losses due to over-drying<br />
these pieces.<br />
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<strong>NMI</strong><br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
Data tracking system<br />
• The <strong>1500</strong> <strong>com</strong>bined with the power of our new “stack trak” database<br />
and bar coding system allows data for every package of lumber to be<br />
stored and <strong>com</strong>bined with dry kiln and Planer moisture information.<br />
This level of total moisture content management sets <strong>NMI</strong> <strong>Signature</strong><br />
systems apart from our <strong>com</strong>petitors.<br />
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<strong>NMI</strong> Entered Into a Strategic Partnership<br />
with SCS<br />
<strong>NMI</strong> SCS Press Release – Dec 01, 2006<br />
<strong>NMI</strong><br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
Overview:<br />
Strategic alliance to optimize kiln drying<br />
and improve moisture control by<br />
integrating the moisture measurement<br />
systems in the sawmill, kilns and planer<br />
mill<br />
Benefit to Mills:<br />
<strong>NMI</strong> and SCS estimate that better moisture<br />
control can result in up to 4% improvement<br />
in grade out turns.<br />
<strong>Pro</strong>duct Release:<br />
<strong>NMI</strong> & SCS will release the <strong>NMI</strong>/<strong>Signature</strong><br />
<strong>Series</strong> family of interconnected systems in<br />
Q1-07.<br />
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<strong>NMI</strong><br />
Bar coding and <strong>MC</strong> <strong>Pro</strong>-trac software<br />
integrates SCS and <strong>NMI</strong> products<br />
Sawmill Moisture Meter<br />
<strong>Signature</strong><br />
<strong>Signature</strong><br />
<strong>Series</strong><br />
<strong>Series</strong><br />
<strong>MC</strong> <strong>Pro</strong>-trac<br />
Planer Mill Moisture<br />
Meter<br />
<strong>MC</strong> <strong>Pro</strong> <strong>1500</strong> <strong>MC</strong> <strong>Pro</strong> 2500<br />
Data Link & Auto-Correlation<br />
Kiln Moisture<br />
Meter<br />
Data Link & Auto-Correlation<br />
MMS 2000<br />
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