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What are the field instruments used in power plants?
Temperature: Thermocouple, RTD, Temperture Transmitter. Flow Transmitter, DP ransmitter, Pressure Transmitter, Pressure switch, Radar level Transmitter, PLC system, Woodward Governor, Ultrasonic flow transmitter. Relay, Control Valve, ON/OFF valve.
A differential pressure transmitter is to be calibrated to read level of a closed vessel The dimensions of the closed vessel are as given below What would be the calibration range of the transmitter?
Dp= rho * g * Dh Dp = differential pressure between point 1 and point 2 [Pa] rho = density of the liquid [kg/m3] g = gravity accelaration [m/s2] Dh= height from point 1 to point 2 [m] For typical everyday sizes of rho and Dh, it can be easily seen than Dp is in the range of 1 to 50 kPa (10 to 500 mabr)
Why you use minus to zero range in drum level transmitter?
I refer to Steam Boiler drum level. It is actually - to some positive figure is the range. Generally the boiler level is maintained at mid point that is zero. The transmistter is differential type. (DP type) If the transmitter is with a specified signal out put of 4-20 mA, it sends out 4 mA at lowest level and 20 mA at highest level. At mid level zero it sends out 12 mA. Differential pressure is highest at actual lowest level and lowest at actual highest level of the drum. By keeping negative to positive range there is fair amount of analog signal on lower and higher side of the drum.
What is a transmitter usb used for?
It is used to transmit music. This is an example of such a device http://www.amazon.com/Universal-USB-Stereo-Audio-Transmitter/dp/B000CMM5G8
How do you measure hotwell level?
Dear Freind, If you are talking about hotwell in power plant application, then it is always recommended to use displacer or Radar type level transmitter. DP type LT is not recommended since it could malfunction in vacuume condition.
What is impulse piping?
It is the pipe which connects upstream and downstream pressure across orifice(constrictions) to the DP Transmitter.
Is Tascam DP-01FX Digital portastudio compatible with windows vista Do I need to download earlier windows from Microsoft?
Try this before anything: 1) On the Tascam main menu, select "Wave." 2) On the Wave menu, select "Export Master." This saves your mastered song to the correct folder. 3) Connect the Tascam DP-01 to your computer. You will get a message telling you your USB device has malfunctioned. 4) On the Tascam menu, select "Disk." 5) On the Disk menu, select "USB OPN/CLS." Your computer should detect the DP-01 as a hard drive & be visible in "My Computer" on Windows. The DP-01FX/CD is no longer being made. It was replaced by the DP-02. The DP-02 is compatible with Vista. Here is more info on the DP-02: http://www.bluegrasscenter.com/dp-02_portastudio.html Good Luck~
What is the DP ranges of cellulose?
The degree of polymerization (DP) range of cellulose varies depending on the source. Typically, cellulose can have a DP range of 1000 to 10,000 glucose units in a polymer chain. High DP cellulose is found in natural cellulose fibers like cotton, while lower DP cellulose is found in sources like wood pulp.
What does a fm transmitter mp3 usb do exactly?
An fm transmitter mp3 usb allows you to play your digital music in your car. You do not have to listen to the music on the radio but you can put songs on the transmitter so that songs on your mp3 player can be played in your car. Go to http://www.amazon.com/Car-MP3-Transmitter-Drive-Remote/dp/B000O3PLYS for examples of transmitters.
Is there a FM transmitter that plays mp3s and has a usb port?
Yes, there are FM transmitters that play mp3s and have USB ports. A search on Amazon.com reveals one that costs only $29.00. It also includes an auxiliary input and a remote. An example of the transmitter can be found here: http://www.amazon.com/Wireless-Transmitter-Auxiliary-Input-Remote/dp/B000FCI7KS
What is a wet leg?
Wet legs are used on differential pressure measurement where both sides are filled with liquid. Exception is level measurement in a pressurised vessel (boilers). Dry legs are used where the low side is exposed to atmosphere using a DP transmitter for level measurement in a open tank.
Does Amazon sell an auto fm transmitter?
Yes, there are multiple listings on Amazon for auto fm transmitters. You can type 'auto fm transmitters' in the search bar on the site or you can find links such as this on a regular Google search: http://www.amazon.com/Griffin-iTrip-Transmitter-Charger-Black/dp/B000BWACX2
