High pressure measurement with the high pressure gauge The high pressure manometer and also the classic high pressure gauge can be really helpful when you have to carry out pressure measurement. The instrument is a great help, particularly when it comes to troubleshooting on air conditioning and refrigeration systems.
Temperature gauges and thermometers - PCI Instruments.
A high-temperature gauge isn’t the only reading you should pay attention to. There will be times when the needle on the gauge points to the colder side. When this happens, it could mean that the engine needs a few minutes to warm up.For high temperature applications, a sodium-potassium eutectic often is used; at ambient temperatures, a mixture of glycerine and water; and at low temperatures, ethyl alcohol, toluene, or silicon oil. The pressure gauge can be located for better operator visibility if the chemical seal is connected to the gauge by a capillary tube.The Earth's atmosphere exerts pressure on the surface. Pressure is measured in hectoPascals (hPa), also called millibars. Standard pressure at sea level is defined as 1013hPa, but we can see large areas of either high or low pressure.
These high temperature pressure gauges are have or include optional extra design features to protect the pressure gauge from high temperature media. Sensitive components such as digital displays, micro-electronics and sensor elements are easily damaged by high temperatures and therefore it is necessary to introduce a method of thermal isolation between the vulnerable parts of the pressure gauge.Engine cooling removes energy fast enough to keep temperatures low so the engine can survive. Some high-efficiency engines run without explicit cooling and with only incidental heat loss, a design called adiabatic. Such engines can achieve high efficiency but compromise power output, duty cycle, engine weight, durability, and emissions.
