ViscoSensor
ViscoSensor (order code 16488) by Dynisco.
It allows the current values of rheological parameters to be monitored and displayed every second. This provides an immediate overview of polymer quality and behaviour during processing. The product is equipped with various output signals that allow values to be transmitted to other systems or devices, ensuring that the values are available wherever they are needed for further analysis or adjustment. The ViscoSensor provides a clear display of the key rheological parameters of the polymer, including melt flow index, viscosity, IV (intrinsic viscosity) for PET and many more. These parameters are essential for assessing the quality of polymer processing. Thanks to the bypass system, the tested polymer is returned to the process. This prevents unnecessary waste of material and ensures efficient use of the polymer. Connecting the ViscoSensor to the system requires only a standard M18x1.5 mounting hole, which makes it easy to install and integrate the device into existing processes.
We will send you the price, delivery time and any available variants in our quotation.
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Description
Online rheological measurement – discover the benefits of continuous real-time quality control directly on the line.THE VISCOSENSOR RSU
The ViscoSensor uses a pair of metering pumps that isolate it from the process, feed the molten polymer through interchangeable capillaries and pump it back into the process. A three-wire platinum RTD is used to control and measure the temperature of the molten polymer. Two Dynisco Vertex Mercury Free pressure transducers (now standard), mounted directly upstream and downstream of the die, are used to capture the pressure drop across the capillary.
VISCOSENSOR RCU: ULTIMATE PERFORMANCE
Our high-performance RCU combines the rheological properties of a laboratory capillary rheometer with the MFI data provided by a laboratory melt flow indexer. It has been upgraded with a Siemens S7-1500 PLC and a 7" (178 mm) Siemens touch panel with a touchscreen HMI. This combination provides greater computing power and state-of-the-art graphics, enabling the RCU to achieve an accuracy of +/- 0.5% over the full range. This allows the RCU to match its measurements more closely to those made by laboratory instruments. In addition, it can be certified for hazardous (explosive) areas as required.
VISCOSENSOR e-RCU: PERFORMANCE SIMPLIFIED
The ViscoSensor e-RCU offers a simplified PLC with the digital and analogue inputs/outputs that most plants need for a cost-effective approach to online measurement. It is equipped with a Siemens S7-1200 PLC with a 7" (178 mm) Siemens HMI touch panel. This combination gives the system computing power and state-of-the-art graphics, enabling the e-RCU to achieve an accuracy of +/- 2% over the full range. The e-RCU enables the processor to measure melt flow rate, relative viscosity, intrinsic viscosity and melt viscosity in typical end-user environments. All this creates a cost-effective system that reduces the risk of inaccuracy to an acceptable level. If conditions change and the system needs to be used in a hazardous and/or classified location, compatibility with the standard RCU allows an easy upgrade.
PERFORMANCE CHARACTERISTICS
| Melt flow index | 0.1 - 25000 g/10 min |
|---|---|
| Viscosity range | 10 – 105 Pa·s |
| Shear stress | 150 - 1.5 x 105 Pa |
| Shear rate | 0.1 – 7500 s-1 (standard die) max 50,000 s-1 (special die) |
| Capillaries | |
| Temperature range | 40 – 350°C |
|
Pressure range |
3 x 105 – 3.5 x 107 Pa |
| Metering pump |
0.16 cm3 / RPM (standard) 0.297 cm3/ RPM (optional) 0.584 cm3/ RPM (optional) |
| Pump speed | 3 – 75 RPM |
| Polymer flow | 225 g/h (average) |
MEASUREMENT AND CONTROL FUNCTIONS
| Test modes | |
|---|---|
| Shear stress mode | |
| Setpoint | Pressure |
| Measurement | Melt Flow Index |
| Shear rate mode | |
| Setpoint | Pump speed |
| Measurement | Apparent viscosity |
| Temperature control | 3 heating zones |
ANALOGUE OUTPUTS: (4–20 MA AS STANDARD)
| Options |
• Melt flow index |
Choose 2 of the following options: |
|---|
ELECTRICAL SPECIFICATIONS
| System voltage | 220-240 V, single-phase, 50/60 Hz |
|---|---|
| Power supply | 2000 W (max) |
DIGITAL INPUTS
| Weight | 45 lbs. |
|---|---|
| Height | 25 in. (63.6 cm) |
| Width | 11.1 in. (28.2 cm) |
| Depth | 9.9 in. (25.2 cm) |
| Mounting configuration | Vertical (stand for horizontal – only when using the M18 pressure port) |
RHEOLOGICAL CONTROL UNIT SPECIFICATIONS
|
RCU |
E-RCU |
|
| Electrical enclosure | NEMA 4, 4x, 12 (IP66) | NEMA 4, (IP61) |
| CPU: | Siemens 1500 Series | Siemens 1200 Series |
| Operator interface | HMI, Siemens Comfort Panel | HMI, Siemens Comfort Panel |
| Weight | 275 lbs | 80 lbs |
RCU
E-RCU
