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Tap Density Apparatus

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Salient Features :

Complies with USP and ASTM specifications
Supports both USP I, USP II test methods
Two cylinder holders with snap-lock mechanism for 100 ml and 250 ml cylinders
Simultaneous rotating and tapping motion assures an evenly packed surface
24 x 2 alphanumeric LCD display
User friendly operation with menus and current status indicators
Calculation of Test results like Tapped Density, Compressibility Index and Hausner Ratio.
Printer port for documenting test results as per GMP/ GLP standards.

Microcontroller based Tap Density Tester ETD-1020 complies with USP and ASTM specifications. The unit offers a simple and standard means of measuring the tapped density of powders, granules, pellets, flakes and other bulk substances.

The ETD-1020 is a two station tap density tester supporting both USP I and USP II methods of testing. The unit allows any one test to be performed at a time. The test can also be performed as per ASTM standards using the optional adapter for cylinder holders. Two different cylinder holders with snap-lock mechanism are designed to hold the 100 ml and 250 ml cylinders.

To ensure a free drop of the cylinder from the required height, the two stations are provided with virtually friction-free bearings. Each station is directly driven by independent motors to ensure a maintenance-free drive. A simultaneous rotating and tapping motion minimizes any possible separation of the mass during tapping down.

The test can be performed in two different modes USP mode and USER mode in both test method. In USP mode, test will run in selected method with set number of taps. At the end of the test, results like Tapped Density, Compressibility Index and Hausner Ration are calculated and displayed.

A validation report can be printed at the end of the test as per GMP / GLP requirements which includes the test parameters, test results and actual time and date on which the test was performed. It also includes serial number of the instrument along with the entry fields for user name and product details.

In User mode the number of drops can be programmed from 1 to 9999. The test can be performed in either of the methods i.e. USP I or USP II.

During the test the user is guided through a series of prompts on the LCD display. The on-line menus and status indicators make the operation of the instrument.

The value once programmed is retained in the memory of the instrument. The unit has a power failure detection facility which allows the user to complete the remaining test after the power supply is resumed.

Optional Accessories :

100ml cylinders (set of 6), 250ml cylinders (set of 6), Adapter for ASTM method for models ETD-1020 and ETD-20, Cylinder holders, Acoustic cabinet, Printer, RS 232 serial port.

The acoustic cabinet reduces the sound level to 71 dB to meet laboratory standards.

Specifications :


MODEL	ETD - 1020	ETD - 10	ETD - 20
Test Methods	USP I and USP II	USP I	USP II
	ASTM (optional)		ASTM (optional)
No. of Stations	2	1	1
Drops / Min.	300 (USP I ), 250 (USP II)	300	250
Drop Height (mm)	14+ 2 (USP I) & 3+ 0.3	14 + 2	3 + 0.3
	(USP II / ASTM)
Tap Count Range	1 - 9999	1 - 9999	1 - 9999
	Standard Accessories
Cylinders	100 & 250 ml (1 each)	One 250 ml	One 250 ml
Cylinders Holders	For 100 & 250 ml 1 each	One for 250 ml	One for 250 ml
Type of Drive	Direct drive with Stepper motor
Display	24 x 2 Alphanumeric Dot Matrix backlit LCD
Printer Interface	Centronics parallel port
Printers Supported	80 column Dot Matrix, HP DeskJet, HP Laser Jet
Power Supply	220/230 V AC, 50/60 Hz, 55 VA
	100/110 V AC, 50/60 Hz, 55 VA (on request)
Dimensions (mm)	360 L x 320 W x 200 H (Approx) without the cylinders
Weight	Nett - 17 Kgs Gross - 25 Kgs (Approx)

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