Datasheet: Automated Powder Analyzer, PTG S3 And PTG-NIR

Automated Powder Analyzer, PTG S3 and the NIR option The automated PTG S3 powder testing system is used to measure the flow behaviour of granules and powders in compliance with the current EP <2.9.36/17> pharmacopoeia and the international ISO 4324 standards. This instrument is suitable for testing powder Flow Time, the measurement of the Cone Angle of the collected powder mound, printing a Powder Flow Chart, while measuring the weight it is calculating the powder Cone Density and the powder Cone Volume as well as the EP "Flowability" results which is measuring the flow time of 100 g of sample through a specified pouring nozzle. It is equipped with a built-in Mettler Balance Cell, range 1 - 350 mg, accuracy 1.0 mg, and a built-in printer.

Operation Principle
The design is compliant to the current EP monograph <2.9.36/17>, USP <1174> and the ISO 4324 (12/83) standard. A conical stainless steel funnel which can be equipped with different pouring nozzles ranging from 4 - 25 mm takes the sample to be tested. The built-in analytical balance cell is placed inside the instrument housing and holds the product collecting dish. The PTG ER electrical stirrer attached to the main instrument may be used for those powders which do not flow due to the high percentage of fine particles.

Enter product information using the alpha-numerical keyboard of the instrument. Select the test program you want to use, Flow Time - Cone Angle - Volume - Flow-Chart - Density - Flowabilit and start the test. Depending on the powder possibly a stirrer, PTG ER, is needed as most of the pharmaceutical material has such a high amount of fine particles that it won't start and flow without any assistance. When the test is started the funnel is opened and the powder flow is detected by 2 IR sensors, this will start the timer to measure Flow Time and to record the Flow Chart is this program is selected. The product itself is collected at a 100 mm diameter dish and forms a cone. If there is no more powder flow the funnel is closed and the movable measuring arm which holds the 2 IR sensors starts to measure the height of the cone up to its tip. As the surface of the collecting dish is completely filled the cone angle can be calculated and displayed.