Brand: Erweka | Category: Scientific & Laboratory Equipment
Erweka position the ZT 120 Light series as the entry level disintegration tester, with one or two motor driven USP / EP / JP compliant test stations. The compact unit carries an integrated flow through heater and a moulded one piece PET water bath with a cover, which Erweka note will not leak or break and is easy to clean. Operation runs from a membrane keypad, where run time and water bath temperature are entered with symbol keys and actual values appear on large bright LED displays. The run time counter starts automatically as soon as the basket rack assembly is lowered into the test media.
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On the ZT 320 series the one to four test stations are driven individually, and each station has its own keypad. Once the required run time is programmed, the basket rack assembly with its loaded samples lowers automatically into the media, and on completion of the preset time or when the stop button is pressed the rack is raised out of the media to prevent further disintegration, which is optional. Temperature shown on the LED display is measured by the standard external sensor sitting either in the water bath or in the test media. Recorded test run parameters can be hard copied through the USB printer interface and the actual disintegration time added manually afterwards.
Erweka state that the RoboDis II+ is the only simultaneously operating, fully automatic dissolution test system currently on the market, with every stage of the dissolution process computer controlled and carried out without user intervention. Disso.NET is the key element, controlling all system functions including precise movement of the robot arm, control of the analysers, data processing and full documentation. In standard configuration it tests up to 10 batches to USP method 1 (basket) or 2 (paddle), and the parallel sampling approach gives very short cycle times for detailed drug release profiles. Integrated System Suitability Tests and video monitoring support reliability, and a 10 batch system needs no more than 2 x 1 m of floor space.
The ZT 730 series determines disintegration time automatically using a cable free AirBasket built around a system of magnets and sensors. It comes with one individually driven test station (ZT 731) or two (ZT 732) and carries an integrated flow through heater. The AirBasket has a sealed electronics compartment, making it dishwasher proof, and durable sensors that allow use in acidic media; it is available as a type A basket with 6 test tubes for standard tablets or a type B basket with 3 test tubes for larger tablets, both to USP / EP / JP standards. Water bath technology uses the thermal inertia of water for a steady test temperature with a PT 100 sensor for constant control, and the 7 inch touchscreen stores and retrieves up to 200 products or methods with their results and parameters.