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Medical analytical photometer "Mefan-8001"
Medical analytical photometer is intended for
measuring light transmission coefficient of solutions on the chosen
radiation wave-length according to the finishing point of the
colorimetristic reaction according to the one and two-wave methods and
for definition of optical density, molar concentration (according to
the standard) with provision of automatic construction of the
graduation characteristic of the 1…6 graduation solutions.
Main types of the device’s operation:
- measuring of the transmission coefficient
- definition of the optical density
- evaluation of the solution’s molar concentration
- provision of automatic construction of the graduation characteristic of the 1…6 graduation solutions
Economical efficiency
- the necessary solution volume makes up not more than 0,5 ml
- low consumption of chemical agents
Rapidity
- the device is ready for use in 30 minutes after switching on
- capacity 260 tests/h
- possibility to store up to 99 results of analyzed solutions
Universality
- fluid cell or a standard rectangular non-fluid cell are used
- connection of the outer interfaces types "Styk C2", IRPR
Simple to operate
- automatic reset before measuring
- automatic test and functional self control
- automatic installation of the light fiters
Specifications
| Optial system |
double beam |
| Light source |
halogen lamp |
| Spectral range, nm |
340:700 |
| Wave selection |
automatic,
with the help of 8 positional disk with filters (high-contrast
interference filters) basic supply 340, 405, 450,492,546, 570, 620, 650
nm, halfwidth not more than 10 nm |
| Photometrical range |
from 0 to 2 units of the optical density from 100 to 1% of transmission |
| Factor assignment |
from 0,000 to 9999 |
| ВRandom error |
0,1% of the absolute transmission |
| Non-linearity |
0,2% of the absolute transmission after 30 minutes of warm up with 100% of transmission |
| Drift |
0,5% per hour |
Time of measuring, s:
programmed
usual |
1:40
2 |
| Cell section |
basic model – fluid, length 1 cm
measuring volume 500 mkl contamination not more than 2% and a standard rectangular test tube |
| Indication |
digital |
| Keyboard |
monolith with "erasable" keys |
| Microprocessor |
КР580ВМ80А |
| Working temperature, С0 |
10:35 |
| Electric supply, V |
220 |
| Frequency, Hz |
50 ± 1 |
| Pump |
with overfilling protection |
Overall dimensions, mm:
photometer
pump |
38х38х15
37х20х18 |
Weight, kg
photometer
pump |
10
4 |
| |
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D&T-20, D&T-80
stomatologic
drills
We have mastered manufacture of high-quality portable stomatologic
drills with the contactless micromotor electric drive in 2005. Development is intended
for use in medical practice and in processing industries.
By development of domestic devices which price will be much lower than cost of
foreign analogues, technical decisions and the technologies used earlier only
in
manufacture of military and space technics are used. One of
the features of the design
of our drills is an absence of windings and shchetochnyh contacts on
the rotor of the
micromotor due to what pollution of an internal cavity by a coal dust is
excluded. High reliability and the big resource of work
are provided . The most high quality bearings which do not demand some greasing and
service during all term of operation are applied
in
micromotors. New configuration of magnetic
system and windings of the micromotor in a combination to modern materials and
technology have provided high specific capacity of the device, have lowered
feed and heating. The dynamic balancing of rotors executed on the
modern equipment, does work of the micromotor quiet even at limiting frequency
of rotation.
Devices of two updatings - " D&T-20 " and " D&T-80 " which complete set
includes the micromotor with a support, the block of management and the tight
foot push-button switch are created.
D&T-20 drill
The D&T-20
Drill is intended for carrying out of medical procedures and
operations in stomatology. The micromotor " D&T-20 " (fig. 2) is supplied with
the device for installation of standard direct or angular stomatologic tips. The
micromotor contains a spring clamp which prevents a spontaneous detachment of a
tip. The drill " D&T-20 " can be
used also for performance of engraving or other works at processing materials,
is similar to the " D&T-80
"
D&T-80 drill
The D&T-80
Drill is intended for machining metal, ceramics, stone, plastic,
bone and other materials by pine forests, mills, drills, disk saws, grinding and
polishing circles. The micromotor of the " D*T-80 " (fig. 1) is supplied with
the mechanism for installation and fixing of the replaceable tool having
standard landing diameter of a shaft of 2,35 mm. Radial palpation of the tool
established in a grip of a shaft does not exceed 0,02¼¼.
In a non-working condition at which the tool is not fixed in a grip, rotation of
a shaft of the micromotor is impossible. Fixing and clearing of the tool is made
by turn of a tip of the micromotor which is kept in extreme positions by a ball
clamp.
The electronic block of management
The electronic block of management of both types of drills provides a mode of
rotation of a contactless rotor in direct and return directions, rigid
stabilization of frequency of rotation at action of external loading, regulation
and digital indication of frequency of rotation, and also creation of a mode of
the accelerated dynamic braking of a rotor at deenergizing.
Inclusion of the micromotor can be carried out both from the foot push-button
switch, and from the switch on the panel of the block. The block of management
can ensure the functioning into the micromotor in a mode full or lowered (30 %)
capacity due to restriction of the moment of rotation. Thus the maximal size of
the moment of rotation is supported by a constant in all a range of frequencies
of rotation of a rotor. Function of
the limited capacity is necessary at performance of some kinds
of therapeutic works. In the block of management protection of a drill against
an overload is realized, for example, at jamming the tool or at inclusion of the
micromotor at not fixed tool. To
apply the new domestic electrotool at carrying out medical or surgical operations and procedures the Certificate on the state
registration of the "D&T"
allows drills as products of medical purpose . Development
is protected by the patent of Ukraine ¹ 53776.
The basic characteristics of drills are resulted in the table
|
The name of a drill |
«D&T-80»
|
«D&T-20»
|
| Purpose |
stomatologic |
Therapeutic |
|
Pressure of a feed |
220V, 50 Hz |
220V, 50 Hz |
| Frequency of rotation, rev/min
|
3000…40000 |
2000…40000
|
|
Mechanical capacity (max)
(W) |
100
|
20 |
| Power consumption (max) (W) |
130 |
35 |
|
the Maximal moment of
rotation (Н·м?) |
0,02 |
0,005 |
| the Way of connection of a shaft
|
Grip mechanism Æ 2,35 мм
|
Standard tip Æ10
mm
|
|
the tool Weight of the
micromotor kg |
0,25
|
0,09
|
| Weight of the block of management,
kg |
1,6
|
1,6
|
|
the Maximal radial
palpation of a shaft (tool), (micron) |
5 (20)
|
5
|
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