The modular GÖTTFERT mi-2 series melt flow indexer allows users to upgrade from a manual operated entry-level unit to a semi-automatic machine.
The mi2-series of melt flow rate testers (plastometers) from GÖTTFERT offers a simple way to determine MFR (melt flow rate) and MVR (melt volume rate). Due to the modular design of this series, it is possible to automate the execution of the melt flow rate measurement increasingly. The testers can be used as stand-alone units or with a PC to manage the test parameters and results.
All plastometers sold by GÖTTFERT are equipped with a piston-speed-sensor and can measure automatically according to ISO 1133 Procedure B and ASTM D1238 Procedure B.
With the optional cutting device, the measurements can also be evaluated according to ISO 1133 Procedure A and ASTM D1238 Procedure A.
With additionally available special capillaries, measurements according to ASTM D1238 Procedure C or ASTM D3364 can also be performed.
The basic mi2.1 is suitable for incoming goods inspection when only a small number of measurements are performed.
The mi2.2 has a higher ease of use than the mi2.1 due to an automatic weight lifting device, which enables the measurement to be started automatically after the melting time is over. Once the measurement has been carried out, the weights can be lifted automatically.
Compared to the mi2.2, the mi2.3 also has a weight magazine that can be loaded with up to 8 test weights. Due to the weight magazine the used test weights do not have to be lifted manually onto the device.
| Model | mi2.1 | mi2.2 | mi2.3 |
|---|---|---|---|
| Test procedure | Automatic measurement with single load | Automatic measurement with single load and manual weight selection | |
| Test chamber | Two heating circuits, electrically heated, temperature sensor PT100 1/3 DIN Temporal temperature fluctuation in the usable range: less than +/- 0.1°C Spatial temperature distribution in the usable area (0-70 mm in front of the capillary) < +/- 0.2°C (test temperature 60°C to 400°C) < +/- 0.3°C (test temperature 400°C to 500°C) | ||
| Weights | 0.325 - 21.6 kg | ||
| Weight guidance | Piston guidance according to EN ISO 1133 / ASTM D1238 | ||
| Electrical weight lifting | - | Yes | Yes |
| Pre-compression and material ejection | - | Manual with weights (optional) | Partially automated with manual weight selection |
| Display of actual temperature | 0 - 500°C on touchscreen monitor | ||
| Temperature measurement | via 16-bit converter, resolution from 0 - 320°C: 0.01°C; resolution from 320 - 500°C: 0.1°C | ||
| Test barrel | 9.555 (-0.01) mm Diameter | ||
| Touchscreen Display | 5.7" (14.48 cm) color VGA touch screen | ||
| Test-point recording | Electronic, resolution: 0.025 mm/pulse | ||
| Display of results | Numerical | ||
| Capillary | 2,095 (+/- 0,003) mm Durchmesser, 8 (+/- 0,025) mm Länge 1,048 (+/- 0,005) mm Durchmesser, 4 (+/- 0,025) mm Länge (Option) | ||
| Aditional analysis | IV-calculation for the characterization of polyester and polyamide | ||
| Melt-cutting device | optional | ||
| Capillary plug | optional | ||
| Nitrogen purging | optional | ||
| Corrosion resistant piston/barrel set | optional | ||
| Abrasion resistant piston/barrel set | optional | ||
| Pre-compression | - | Adjustable melting position (optional) | |
| Interface | Ethernet, serial, 1 or 2 x USB (printer, memory) | ||
Directly connected laboratory scale for determination of the melt density.
The residual moisture has a considerable influence on the measurement result for certain test materials. Therefore, it is recommended to dry test materials before a IV measurement and to determine the residual moisture.
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