The following terms and their definitions are related to both OBD1 and OBD2 systemsMeaningful temperature measurements depend on the selection of the proper sensors and controls and the proper placement of sensors to accurately measure the targeted temperature.  For example, it was previously stated that bimetallic sensors, in most cases, ultimately sense the temperature of air around them.  This makes bimetallic sensors a good choice for measuring air temperature in a dryer.  To employ them in sensing the temperature of a liquid in a cleaning tank, however, requires that they be placed at a location where the air temperature is directly proportional to that of the temperature of the liquid to be measured.  This is not a simple task as heat must be transferred from the liquid through the wall of the vessel containing the liquid and then through the air to the sensor itself.  As we have noted before, air (or any gas) is not a good heat conductor.  As a result, a temperature measured in this way may either not reflect the actual temperature of the liquid in the tank or may result in a delayed response due to the time required for the heat to be transferred to the sensor through the tank wall and air. 

Accurate measurements of liquid temperature require that the heat path from the liquid to the sensor be as short as possible giving thermocouples and resistance sensing devices an advantage when it comes to measuring liquid temperatures.  Capillary bulb type sensors can be used to measure the temperature of both liquid and air but, in the case of liquid, the capillary bulb itself should be either immersed in the liquid or bonded directly to the wall of the vessel using a suitable mechanical clamp and surrounded by a good conductor such as a highly heat-conductive epoxy.Mountain Bike Tire Red Sidewall Although selection of the appropriate sensor is critical, even the best sensor will not provide the needed temperature indication if the sensor is not properly positioned.  Vizsla Puppies Florida RescueIn the case of a tank with heaters mounted on a single side, for example, liquid temperature may vary by tens of degrees depending on the position of the sensor in the tank relative to the placement of the heaters and the depth of the tank.  Cheap Plywood Sheets Birmingham

More heaters positioned around the tank will better distribute the heat but even distributed heat will not prevent temperature stratification in a large or deep tank.  A better solution is to distribute the heat using a pump loop or propeller type immersion agitator. It is always a good practice to verify the accuracy of temperature measurements using a reference thermometer.  Although most temperature sensors are highly reliable, it is not uncommon for them to become detached or dislocated over time in which case, of course, they are not measuring the targeted temperature.  I prefer a laboratory grade mercury bulb thermometer encased in a metal sheath as a reference.  Hand-held thermocouple or RTD devices are also useful and especially so in cases where there is no direct access to the area where temperature is to be measured. Note – Ultrasonic vibrations have been known to have an effect on the accuracy of some temperature sensing devices.  To prevent this possibility, reference temperatures should be measured with the ultrasonic energy off in ultrasonic tanks to assure accuracy.

This entry was posted in Useful Information Miscellaneous. You are here: Home / Common Abbreviations Please press 'ctrl +f' to search. Fast and safe delivery Official UK supplier of Launch automotive diagnostic tools and aftermarket equipment A device to prevent equipment from running when fuel filter / oil filter element gets choked ; spring loaded rubber diaphragm type. They are highly durable and long lasting in nature. This product switches off the application, only if & when filter fuel/oil element gets chocked beyond safe Ranges from 0.2 to 0.4 bar vacuum Contact Rating 12V/24V DC 3 ampMany insurance companies consider the BioMat a viable treatment option for pain as well as otherThe BioMat delivers the benefits of a Far Infrared sauna for a fraction of the price. is a totally unique medical device producing Far Infrared as well as generating 6.8 microns of Medium “Human” Infrared. According to NASA research, Human Infrared normalizes a variety

of important physiological functions, especially glandular functions. This Human Infrared feature of the BioMat makes it different from any other infrared device on the market. In addition, traditional infrared saunas and devices utilize 120 volt AC current. been proven to be highly detrimental to human health. current disturbs the human biological field. your body from the harmful AC current by providing a 5 tiered buffering system in which the AC current is converted to DC (direct current) which is bio-electrically compatible with the human The BioMat also delivers Negative Ions, energizing the body for optimal health. delivered through the BioMat are delivered directly to the body through the skin’s surface via conduction. differs from the ambient air ions delivered through the popular negative ion generators used for air cleaning, which NASA reported only positively effecting 25% of people. of negative ions allows for an immediate response and change

in the body's electrical field for 100% of the people, whereby cell channels are activated for a rapid return to the body's The BioMat is further enhanced with Amethyst Crystals, known for their calming and healing effectsThe BioMat is a revolutionary healing tool, ideal for health care professionals or anyone interested in improving their overall health and well-being. was scientifically demonstrated through spectral analysis demonstrating a change in infrared light when refracted through amethyst crystals. Scientists experimented passing far infrared light through a variety of substances, including various gems, glasses and plastics. Amethyst was found to be the only substance which clearly changed the spectrum of infrared light. Wave forms mimicked patterns similar to the human voice according to scientists. theory has yet been proposed regarding the Amethyst Effect, scientists hypothesize the infrared light passed through the amethyst, releases

over 20 million years of information which is made available to the human body for healing purposes. The field of Far Infrared Crystallography explains this effect in further detail. through amethyst crystals organizes the FIR into geometrical patterns with higher bio-compatibility. addition of the amethyst allows for greater increase in the utilization of the light by the human organism. Far Infrared Rays (FIR) penetrate 6-8 inches into the human body. These rays not only benefit the skin and muscle tissue on the surface of the body, but penetrateThe FIR penetrates into the lymph glands, blood vessels, nerves, as well as key organs. the health of these tissues in a number of ways. by NASA, scientists propose among the energy spectrum coming from the sun, the FIR waves are by far the safest and most beneficial electromagnetic energy available for the human body, directly affecting all metabolic and cellular functions.