1. How do I keep my Vympel analyzer in good condition?
It is recommended that maintenance be carried out annually. Regular maintenance consists of:
• Visual inspection of the analyzer's overall condition
• Check /reset operating settings;
• Clean the measurement cell, including the condensation mirror
• Check the performance of the Peltier element
• Update the software (when update is available)
• Confirm calibration / recalibrate the analyzer
• Check the performance of the rechargeable battery (for portable devices)
The metrological characteristics during the inter-verification interval comply with the established standards, subject to the operator observing the rules for storage, transportation and operation specified in the manual.
VympelCare service is available several times a year and provides for complete regular maintenance and calibration for a special offer;
2. What do I need to do when storing my Vympel Analyzer?
CONG Prima-2M or FAS should be stored in the containers in which they were delivered. These containers protect the instruments from mechanical damage, contamination, and the effects of aggressive media.
If you are storing a Hygrovision series portable analyzer, first be sure that the battery is removed from the device. Then the analyzer should be stored in its carrying case, which is specially designed to protect the device and its components.
All Vympel analyzers should be stored indoors, under conditions that ensure protection from mechanical damage, dirt, and exposure to aggressive environments, and extremes of climate, such as extremes of temperature or humidity.
Vympel analyzers may be stored in their containers for up to 6 months. If analyzers are to be stored for over 6 months, please contact Vympel for further assistance.
3. What spare parts does a Vympel dew point analyzer need?
4. How often do I need to calibrate my Vympel analyzer?
5. Can a Vympel analyzer be calibrated on site?
6. How does a chilled mirror analyzer work?
No. Vympel chiller-mirror analyzers are not subject to drift. Dew point temperature measurements taken using a chilled-mirror hygrometer, such as those produced by Vympel, are first principle direct measurements of a physical property of a gaseous media. As such, these measurements are not subject to drift..
7. What is the difference between the water dew point and the hydrocarbon dew point?
The water dew point is the temperature at which water condensation and water evaporation are at equilibrium for a given pressure. The hydrocarbon dew point, also known as the hydrocarbon condensation temperature, is the temperature at which potential hydrocarbon liquids transition to the second phase (liquid).
Because of the particular nature of hydrocarbon condensation behavior, there is a pressure that corresponds to the highest hydrocarbon dew point temperature. This pressure is known as the “cricondentherm”.
8. What does the word “cricondentherm” mean?
In the case of hydrocarbons, however, this pattern of increasing temperature corresponding to increasing pressure reaches a maximum at a specific pressure. As the pressure increases beyond this point, the condensation temperature actually goes down again. “Cricondentherm” is the term for the specific pressure that corresponds to the maximum condensation temperature of a hydrocarbon. Each hydrocarbon has its own cricondentherm, and mixtures of hydrocarbons, such as those found in natural gas likewise have a unique cricondentherm. In order to harmonize measurement results in the real world, the operational cricondentherm for natural gas applications has been established as 27 bar.
9. What is the difference between water condensation and hydrocarbon condensation?
10. Is it possible to measure both the water dew point and the hydrocarbon dew point with one analyzer?