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What else can I help you with?
Why power amplifier used in FM transmitter?
Amplifier is used in an FM transmitter to increase the level of a signal suitable for transmission
How level transmitter works?
It just transmits the level of the fluid into electric signal to level indicator and this level indicator will show current level of fluid.The whole setup is used for level measurement. A Level Transmitter is simply an instrument that provides continuous level measurement. Level transmitters can be used to determine the level of a given liquid or bulk-solid at any given time. This is different to a level switch which only alarms when the level of material (liquid or bulk-solid) reaches a predetermined level.
How can you calibrate interface level transmitter?
First of all you have to know the gravities of the liquids you want to measure. For example crude oil's gravity is 0.87 and water's gravity is 1. A level transmitter uses 2 inlets, including the area of the level you want to observe. You meter the distance (the height) between the two inlets. CALIBRATION: You fill the container with the heavier liquid, till the gravity's percent (%). Adjust for ZERO. Fill till 100% to have the SPAN. The gravity selector must be at the right position.
What is level transmitter?
It just transmits the level of the fluid into electric signal to level indicator and this level indicator will show current level of fluid.The whole setup is used for level measurement. A Level Transmitter is simply an instrument that provides continuous level measurement. Level transmitters can be used to determine the level of a given liquid or bulk-solid at any given time. This is different to a level switch which only alarms when the level of material (liquid or bulk-solid) reaches a predetermined level.
Which adjustments have to be observed when measuring with a multimeter?
You check and adjust instrument zero and, if you are measuring ohms, you also check and adjust ohms zero.
When you will do suppression in level transmitter?
If you are mounting the transmitter below the datum line of the tank, the transmitter signal will go above 4 mA when the High side impulse line fills up and this will give a zero error compared to the tank actual zero level.
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 the difference between analog and digital transmitter?
In a analog transmitter the RF carrier have to be modulated with the analog signal either by AM or FM where in digital transmitter the carrier is simply switched on and off a off = a zero and on = a one
Why power amplifier used in FM transmitter?
Amplifier is used in an FM transmitter to increase the level of a signal suitable for transmission
How do you select the range for the DP level transmitter?
BY Product Specification
How do you calibrate displacer type level transmitter?
You have to specify which type of calibration you want to perform on the transmitter dry, wet or online calibration ?
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.
Why boiler drum level control is 3 element control?
three element means 1) drum level transmitter. 2) main steam flow transmitter. 3) feed water flow transmitter . in squared root. we are controlling drum level by these 3 elements. output feed to 30% control valve. or control valve.
How can you determine the level of liquid without making any cintact with it using any probe?
By differential pressure of the liquid and the air gap above the liquid. Both the pressures are given to the differential pressure transmitter, and the signal received from the transmitter is then converted into level using conversion factors supplied by the supplier of the transmitter.
What is the function of the amplifier in a transmitter?
used to increase the power level of the transmitting signal
How level transmitter works?
It just transmits the level of the fluid into electric signal to level indicator and this level indicator will show current level of fluid.The whole setup is used for level measurement. A Level Transmitter is simply an instrument that provides continuous level measurement. Level transmitters can be used to determine the level of a given liquid or bulk-solid at any given time. This is different to a level switch which only alarms when the level of material (liquid or bulk-solid) reaches a predetermined level.
How can you calibrate interface level transmitter?
First of all you have to know the gravities of the liquids you want to measure. For example crude oil's gravity is 0.87 and water's gravity is 1. A level transmitter uses 2 inlets, including the area of the level you want to observe. You meter the distance (the height) between the two inlets. CALIBRATION: You fill the container with the heavier liquid, till the gravity's percent (%). Adjust for ZERO. Fill till 100% to have the SPAN. The gravity selector must be at the right position.
