Dynisco 4001, Руководство пользователя

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Second, the instrument has a 32 bit micro-processor incorporated into its base
to control the aforementioned hardware, but also to make calculations of the
Melt Index, Viscosity, and in some cases (Model 4003, 4004) calculate
rheological data about the sample as well.
Model 4001
Model 4002
Model 4003
Model 4004
Method B Encoder Option
This is the entry level machine. It will conduct method A tests only and cannot
be upgraded to higher models. The 4001 has a 5 program memory.
This model performs Method A, Method B and flow rate ratio testing.
Temperature and flow rate are displayed on the instrument front panel. It has a
20 program memory. The unit can be upgraded to higher models.
This model contains additional program capacity and can retain up to 60 test
programs. In addition, it communicates with printers and can provide a series of
more advanced technical information such as shear rate, shear stress and
viscosity. Statistics on flow rate and viscosity can be averaged over replicated
tests.
The 4004 is the most sophisticated of the Dynisco Polymer Test's models ever
available. It has all of the capabilities of the 4001, 4002 and 4003, and will
communicate with other computers, and can be multiplexed (8 machines to one
PC). With the addition of the encoder option, 10 complete test programs (set
ups) can be stored.
The Digital Encoder option replaces the optical flag and sensor with highly
accurate digital flags and sensors. You can perform experiments using from one
digital flag up to fifteen digital flags. The Dynisco Polymer Test Encoder for
Method B tests employs a 1016 count optical encoder, coupled to high accuracy
gears, to measure the piston travel. The optical encoder has dual outputs,
enabling the signal to be processed in quadrature, yielding a resolution of 0.015
mm. The linear distance of the piston is transferred to rotary displacement via a
precisely calibrated arm. The tip of this arm employs a hardened & ground tip
for extra long life. Accuracy over the ASTM measurement range of 0.25" and
1.00" is +/-0.4%. The optical encoder, while being very accurate, also enables
the test length signal to be processed and varied digitally. Thus, any test length
up to 1"(ASTM) or 30 mm (ISO) may be selected. Up to 15 MFR results per
barrel filling can be obtained. The unit is securely fastened to the rear of the Melt
Indexer, and the arm latches down to facilitate cleaning of the unit after the test is
completed.
Encoder Advantages

Completely Automatic Flag Length Selection on Single MFR Tests

Up to 15 MFR readings per Barrel Filling

Any test length ("Flag") up to 30 mm

User Defined test length & test spacing for single or multiple tests

Automatic Test Length & Test Spacing for multiple tests
Series 4000 Melt Indexer Operation Manual Introduction
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