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Crystal
Oil product low temperature parameters
measurement instrument
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CRYSTAL modifications:
- determination of dynamic viscosity within the temperature range from
+50C to -50C;
- determination of cloud point and freezing temperature of diesel fuel;
- determination of filterability limit and freezing temperature;
- determination of motor oil freezing temperature (semi-automatic);
- determination of motor oil freezing temperature (automatic);
- determination of cloud point and freezing temperature of diesel fuel |
motor oil freezing temperature (semi-automatic);
- determination of crystallization temperature of aviation kerosene down
to -70C.
- crystallization temperature of antifreeze
- crystallization temperature of solvent
Crystal is intended for crystallization temperature measurement of the
jet-plane fuel, diesel fuel cloud-point and freezing temperature measurement,
motor oil freezing temperature and dynamic viscosity measurement in the
laboratory and field conditions.
Crystal is a new generation instrument, and depending on modification can be
used for fuel and oil quality control. Each model is unique in itself, and all
methods of analysis and arrangement are patented. The common feature for all
instrument modifications is cryostat with cooling down to minus 60C (diesel fuel
and motor oil) and down to minus 70C during analysis of jet fuel. The instrument
has LC display which shows the examination process in real time mode. The
instrument's case is ergonomic and can resist any oil product or solvent.
Advantages of the Crystal instrument
- Crystal is an instrument for rapid analysis of diesel fuel, and oil as
well as for aviation kerosene in laboratory and factory environment. It is
powered from 220V power line.
- Low temperature characteristics of aviation kerosene is determined with
a laboratory test called "crystallization temperature detection". During the
course of the test the fuel sample is cooled down until paraffin crystals
are formed and detected with the optical monitoring system. The accuracy of
the parameter is very important for safety of the plane flights.
- Temperature of motor oil freezing is detected using special sensor that
records the moment of sample transition from solid state into liquid. In
order to do that the sample is being cooled down until complete solidness,
and after that the sensor system is turned on.
- In the same way to aviation kerosene, the principal of cloud point
temperature determination for diesel fuel is based on short-range infrared
transillumination of the sample.
- Dynamic viscosity is determined by rotation viscosimeter.
- The process information is shown on the liquid crystal display in all
modifications of the instrument.
- The microprocessor processes the results of measurement.
- The external cryostat is not required, the built-in cryostat is made on
Peltiye elements. Toxic coolants and dispensable are not used. The radiator
of Peltiye element is cooled with water.
- The major goal of any laboratory is to provide the highest level of
measurement results reliability. In order to increase the accuracy of
temperature measurement the user can input correction data into nonvolatile
memory.
- Instruments of Crystal series meet all ISO 9000 requirements.
Specifications of the Crystal instrument
| 1. |
Sample volume, ml |
1,9+0,1 |
| 2.
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Limit of cooling temperature, C |
- 70 |
| 3. |
Inaccuracy of cloud point temperature detection, degrees C
|
1 |
| 4. |
Inaccuracy of freezing temperature detection, degrees C (type of
detection - mechanical) |
2 |
| 5. |
Inaccuracy of dynamic viscosity detection, % |
3 |
| 6. |
Maximum time of test, min |
25 |
| 7. |
Minimal time between tests, min
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15 |
| 8. |
Compliance with test method
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ASTM D 2386, D5901, ASTM D4684, ISO 3013 |
| 9. |
Working conditions(temperature) of the instrument, C
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from +15 to +35 |
| 10. |
Dimensions, mm |
240х240х140 |
| 11. |
Weight, kg |
max 3 |
| 12. |
Mean-time-between-failures, hours |
not less than 1000 |
Major advantages
- Test process is completely automated
- The instrument has high speed and accuracy of measurement
- The instrument is compact
Director
of the Institute Prof. Lyubov K. Altunina
Dr.
Valery N. Shatokhin
Institute
of Petroleum Chemistry 3, Akademichesky Avenue, 634055,Tomsk, Russia
Phone:
7 (382-2) 491164, 491621
Fax:
(7-382-2) 491457
E-mail:
manka@ipc.tsc.ru,
canc@.ipc.tsc.ru