Brochure: Tablet Dissolution Test Instrument - Type PTWS 100

The PTWS 100 is a 6 position Compact Dissolution Tester for Solid Dosage Forms as described in chapter <711/724> USP and Section<2.9.3/4> EP as well as the DAB and Jap. Pharmacopeia. It is supplied with a staggered start feature for each of the 6 positions. The upper drive is electronically controlled so as to offer two positions: an upper cleaning and a lower working position. The electrically driven lift mechanism is centrally located above the water bath thus assuring that the whole lift drive mechanism is positioned so that the tool shafts are always kept parallel and at 90° to the vessel walls when in the working position.

The dissolution vessels are automatically centred and held in position once inserted into the bath cover. The access points which are necessary for sampling as well as the openings for the tools are contained in an auxiliary, low evaporation loss, vessel cover.

The blow moulded water bath can easily be removed from its support frame for cleaning purposes. The bath cover can also be easily unscrewed for cleaning. The water bath also contains a water diffuser so that heated water is evenly distributed throughout the bath.

The heating system is contained in a separate stainless steel housing. The connections between the heater and the bath are on „quick connect" fittings for easy connection and disconnection. Water is pumped through the system using a powerful, yet quiet, circulation pump. The pump itself is spring mounted (to limit vibration transmission) and the flow through heater is protected from overloading (overheating in case of control electronic's failure) via a thermal fuse as well as a thermo switch for added security; with service and maintenance in mind, access to the compact pump and heater section is easily achieved without having to move the main frame instrument.