PTWS 120D – USP/EP Tablet Dissolution Testing

PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
The PTWS 120D is a 6 position, single drive compact tablet dissolution testing instrument for solid
dosage forms as described in USP chapter <711/724> and EP section<2.9.3/4> as well as the BP, DAB
and Japanese Pharmacopeia section <15>.Its design for manual operation and ease of use.
User Interface
In keeping with our cutting edge design, a large color,
touch screen allows control of the various mechanical
features of the instrument such as the tool stirring
speed, lift drive and heater. The instrument control is
menu driven using a resistive touch screen and
selection wheel technology. Visual signals on the display
inform the user of the status of critical instrument
parameters, e.g. bath target temperature not reached.
Access to the instrument can be password controlled if
required. If certain operational parameters form a
regular feature of the daily routine, then these can be
Pharma Test Apparatebau AG
Siemensstr. 5
63512 Hainburg/Germany
P: +49 6182 9532 600
F: +49 6182 9532 650
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
incorporated into a test method for faster set up. These parameters can be tool speed, target bath
temperature, sampling time points and so on. The test method memory capacity is almost limitless.
As soon as the test is started, a screen saver can be activated with the most important information
displayed in large script, like count-down timer so that this information remains visible even at time
when the operator is not standing directly in front of the instrument.
Stirring Tools
The PTWS 120D uses the Pharma Test MonoShaft™
design. Tools consist of the main shaft plus
interchangeable tool heads (adapters). The main shaft
remains in place in the instrument regardless of the
tool head being used. The clearance of each tool from
the vessel base will always be correct once the main
tool shaft has been installed and qualified with any one
of the tool sets once. Each stirrer can be raised by hand
into a convenient position for easy vessel removal or
insertion. PTWS 120D is capable to perform a
staggered start for each of the six positions, which is
essential in manual operation.
Vessel Centering System
The PTWS 120D features a rigid and precise three-point
individual centering system for each dissolution vessel
(picture shows view from below). The vessels are held in
position by three adjustable noses and are inserted into
the instrument support framework. The access points for
sampling as well as the openings for the tools are
contained in an auxiliary, low evaporation, vessel cover.
Each USP Borosilicate glass vessel has a batch code on
top of the flange for easy visibility and positioned
placement inside the water bath cover.
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
Lift Mechanism
The upper drive is motorized and electronically controlled it offers eight
programmable positions: an upper cleaning and instrument qualification position
and lower working positions are programmable depending on the type of stirring
tool used. The upper position offers ideal access to the stirring tools and vessels
for a change of tools and cleaning steps between the dissolution tests. The
motorized drive head lifting mechanism is positioned in a way so that the tool
shafts are always kept parallel and at a 90° angle to the vessel walls when in the
working position.
Heating System
The heating system is contained in a separate stainless steel
housing. The connections between the heater and the bath
are made by "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 flowthrough heater is protected from overloading (overheating in
case of control electronics 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 body of the instrument.
Vacuum-moulded Water Bath
The vacuum molded water bath can easily be
removed from the support frame for cleaning
purposes. The bath cover can also be easily
unscrewed for cleaning. The water bath contains
a water diffuser for faster heating and to ensure
that heated water is evenly distributed
throughout the whole bath. Optionally a double
walled vacuum molded water bath is available
which reduces the heat transfer to the outer
environment to save internal heating and
external cooling energy
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
Space Requirements
A key point in today’s crowded labs is the footprint of the PTWS 120D. The space saving design of the
PTWS 120D offers the user
the choice between a 2x3 or a
3x2 configuration with a
minimal space requirement of
just 45cm by 65cm (width by
depth). The display module
can be mounted either of two
positions on the drive head of
the PTWS 120D instrument.
Some of the highlights the PTWS 120D offers are:
Single drive of 6 stirring positions
Modular design to minimize bench space requirements
3-point individual vessel centering system
Borosilicate glass vessels including extra low evaporation vessel covers
Individual vessel batch code at the top of the vessel flange for easy identification
Excellent access to all vessels
Motorized Drive Head lifting mechanism including head position programming facility
Screen saver functionality and count-down timer offers most important information at a
glance (stirrer speed, bath temperature, time to next sampling interval, elapsed time, media
temperature etc.)
Wake up functionality to start heating at a pre-programmed time
Ultra-fast heating system due to newly designed heat exchanger, saves up to 1/3rd of the
heating up time compared to most other models
MonoShaft™ system to avoid re-adjustment of immersion depth
Staggered stirrer start feature for convenient manual sampling
Water diffuser inside the vacuum molded water bath for even temperature distribution and
fast temperature equilibration
Spring loaded pump assembly to eliminate vibration transfer
Extraordinary safety features for pump and heating system, flow control, digital temperature
control, thermo switch, thermo fuse
Auto stirrer stop when drive lift is moved
Excellent stirrer shaft verticality inside the vessels due to central position of lift columns,
drive head assembly and rigid anodized aluminum framework
Easy removal of the water bath from of the frame work for cleaning and maintenance work
Energy saving double walled bath option, less heat transfer into the lab environment, less
power consumption during instrument operation
DQ/QC, IQ and OQ documents included free of charge
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
The main features of the PTWS 120D are:
Fully USP <711/724> and EP <2.9.3/4> compliant
6 single drive motorized stirred positions
Centrally located motorized lift drive to raise and
lower the drive head
Individually coded Borosilicate vessels
File up a nearly unlimited number of different test
descriptions (methods)
CAN Bus technology offering instrument suitability
check prior to start of a test run
Staggered start capability
Vessel low evaporation sealing covers
Removable water bath for easy cleaning
Drainage tap to empty the bath
Method management and CFR compliant user
User Access control, password expiry control
Optical and acoustic signals to inform about sampling intervals,
Timer count down function
Traffic Light optical information on display shows the instrument status by different colors
(green = ready to use, yellow = preparing to use, red = error encountered)
OQ, PQ interval warning with programmable interval
USB port for remote control of the PTWS 120D
RS-232 port to connect a serial PT-RP80 report printer, printing date/time, sampling time
information, selected sampling position, used stirring tools, media temperature, operator
name etc.
I/O port for remote control of external instruments in automated applications, like DSR-M,
Pumps and PTFC-2/8
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
Standard Scope of Supply
The PTWS 120D comes ready to use with the following standard scope of supply:
One set of stainless steel paddles
One set of batch coded 1000ml Borosilicate glass vessels
One set of depth adjustment balls
One bottle of ALGEX water preservative
Comprehensive documentation folder including:
 User manual
 DQ/QC instrument compliance test certificate
 IQ documentation
 OQ documentation
 Instrument logbook
 Compliance certificates for vessels and stirring tools
In addition to the standard scope of supply Pharma Test offers a broad range of accessories and
options including:
PTWS 120S instrument variant with individual stirrer speed settings for each station
Direct control of peripheral instruments via I/O port such as PTFC-2/8 fraction collector or
DSR-M Dissolution Sampling Robot
Eco saving double walled vacuum molded water bath
2 liter vessel version (can also be used with 1 liter vessels)
250 ml Mini Vessel set incl. mini paddle stirrers
Amber colored vessels for UV sensitive test materials
Full range of MonoShaft™ stirring tools available
Full range of certified validation tools available
PT-RP80 serial report printer
PT-RP80 Report Printer
Use the PT-RP80 serial report printer to print out the runtime report of
the PTWS 120D.
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
Example Runtime Report
S/N: 19018
V: 1.00
Type of the instrument (PTWS 120D)
Serial number of the instrument
Firmware version installed on the instrument
02.02.2015 12:31:48
Date and time of this print out
Name of the user currently logged in
Name of the product used for this test
Name of the method used for this test
VOLUME: 900ml
Batch number entered at the start of this test
Nominal bath temperature from the method for this test
Actual bath temperature at time of the print out
Name of the lift position from the method for this test
Media volume from the method for this test
Total duration time setting for the method for this test
Nominal speed setting from the method for this test
I.-COUNT1: 1
I.-DELAY1: 0:01
I.-COUNT2: 1
I.-DELAY2: 0:02
I.-COUNT3: 0
I.-DELAY3: 0:00
First interval count
First interval delay
Second interval count
Second interval delay
Third interval count
Third interval delay
START: 02.02.2015 12:21:08
END: 02.02.2015 12:31:08
Current status of the test, if test is still running it will be
Start date and time of the test
End date and time of the test (if already finished)
02.02.2015 12:22:08
Occurrence of first interval
Date and time of first interval
Actual bath temperature when first interval occurred
02.02.2015 12:24:08
Occurrence of second interval
Date and time of second interval
Actual bath temperature when first interval occurred
If no intervals have yet occurred it will be “NO INT”
Space to write down name of the operator
Space for the operator’s signature
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PTWS 120D – USP/EP Tablet Dissolution Testing Instrument
Technical Data (Standard 1 Liter Version)
Data Entry
Acoustic Signal
Stirrer Position
Testing Method Programming
User Access Control
OQ, PQ control
Number of Stirred Vessels
Standard Vessels
Vessel Covers
Stirring Speed Control
Speed Accuracy
Stirrer Shaft Wobble
System Tools
Heating System
Heater Range
Heater Accuracy
Heat Up Process
Water Circulation
Vibration Elimination
Bench Space Requirement
CE / EMC Certification
6", 320x240 pixel color LCD, illuminated
Resistive touch screen, functional touch keys
Programmable acoustic signal for operator information
Programmable sampling times, wake-up and sleeping mode, operation
time information and timer count-down mode
8 programmable stirrer immersion positions (paddle over disk,
transdermal cylinder etc.)
Unlimited number of different test descriptions can be stored on SD card
Multiple level access control, password expiry date control, CFR
Programmable time periods to remind on QO or PQ testing
External PT-RP80 report printer using long-life printer paper
6 (3 by 2 or 2 by 3 arrangement)
1 liter USP/EP Borosilicate glass vessel, each individually coded
Ultra low evaporation design (< 0.7% within 24h)
25 - 250 RPM
±2% of set speed, typically < 1%
Better than 0.2 mm total run out
MonoShaft™ stirrer design, USP/EP apparatus 1, 2, 5, 6 tool adapter,
cream cell, transdermal patch tools, each tool and vessel individually
Pump for water circulation and 1500W heater for fast heating up
(230/240V units only)
25 - 45°C
± 0.2°C inside the water bath
Energy saving, programmable “wake up” heater function and “sleep
Water circulated from external heating system through special diffuser
inside the water bath
External heating system, spring loaded pump assembly
Built-in calibration procedures for speed, temperature control, OQ/PQ
interval programmable including alarm indicator
45 x 65 cm (2 by 4) or 65 x 45 cm (4 by 2)
All components certified to USP / EP requirements
All CE / EMC Certification provided
All IQ & OQ documents included
We reserve the right to make technical changes without any prior notice.
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