The following schematic diagrams show the relative effects of 2 ohms total wire resistance on a RTD circuit: Clearly, wire resistance is more problematic for low-resistance RTDs . In the RTD circuit, wire resistance counts for 1.96% of the total circuit resistance. we can eliminate this resistance using 4-wire and 3-wire methods. 4 wire RTD… Read More »
This utilizes the fact that Oxygen is a paramagnetic gas which distinguishes oxygen from other gases because it is attracted into a strong magnetic field. Basically when a gas sample is introduce to the instrument the oxygen will be drawn into the magnetic field resulting in a change in the flow rate. The flow rate change is proportional… Read More »
There are two different types of Zirconia measurement systems. 1 amperometric 2 potentiometric Figure shows a schematic of the amperometric system. An amperometric sensor consists of zirconia cell that has a high voltage being applied across the two platinum electrodes. Oxygen then flows through the diffusion hole and comes into contact with the cathode… Read More »
First Creat a New Project :- Go to Start > Create new project > fill the detail like project name, path, comment etc… After that click on configure network Here we can check accessible devices Now click on online Online > Upload device as new station (Hardware and Software)… Read More »
► Pitch circle: It is the imaginary circle that rolls without slip with a pitch circle of a mating gear . ► Pitch Point: It is the point of tangency of two pitch circles and is on the line-of-centers. The pitch point of a tooth profile is at its intersection with the pitch… Read More »
The motion and power transmitted by gear is kinematically equivalent to that transmitted by friction wheel. Consider two circular wheels A & B mounted on two parallel shafts and the wheels are pressed against each other. Shafts are mounted on anti-friction bearings. When wheel A is rotated by shaft, it will rotate wheel… Read More »
Steam trap is a type of automatic valve that filters out condensate (i.e. condensed steam) and non-condensable gases such as air without letting steam escape. If condensate is not drained immediately or trapped from the system, it reduces operating efficiency by slowing the heat transfer process and can cause physical damage through the phenomenon known… Read More »
The Py-Gas is an online sample conditionerdesigned for difficult sample conditioning situations such as the following. • Hot and dirty gases • Pyrolysis gases • Liquid mists or water removal • Wet, dirty gases • Heavy particulate removal • Fine carbon removal The initial sample problem addressed by the Py-Gas was in gas/liquid feedstock for a… Read More »