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4-20ma is an industry standard for signalling in a process monitoring and control environment. 4ma is one end of the range. 20ma is the other. If the receiver sensed 0ma, it would conclude that the circuit is open, and raise an appropriate alarm.
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Is there a theoretical limit to high voltage?
Theoretically there is no limit to the voltage of an electrical current.
What is the function of fixed resistor?
To limit the current
Why latching current is more than holding current in thyristor?
Holding current is a kind of Imin i.e., a minimum rating current which should not be decreased less than this limit so that SCR will be off(Maximum limit).Whereas latching current is again a limit which is Imini.e., a minimum current that should be there to make it on(Minimum limit).So obviously Holding current is more than latching current.If u still have the confusion go through the link below ALi RAZA
Why you need resistance in series with led?
limit current and avoid having it explode
What is the function of a bandwidth controller?
Bandwidth control is used to ensure that people do not exceed their given bandwidth amount. If the limit is exceeded, they are charged extra as a penalty.
How does limit switch work using plc?
A "Programmable Logic Controller" can have a switch to either tell the machine when it has reached a certain position at or near the limit of its travel, or a switch that over-rides the maximum or minimum programmed limits for safety. The mechanics can be electrical, laser, pneumatic, or any type that is reliable for the device.
What does a plc does?
Programming Logic Controller is a controller, which gets input from sensors,read/limit switch and controls the output according to the Ladder logic program.
Can a capacitor be used as a fuse to limit overload current?
No, a capacitor can not be used as a fuse to limit an overload current condition.
Can a capacitor limit current in a circuit?
No.
Is there a theoretical limit to high voltage?
Theoretically there is no limit to the voltage of an electrical current.
What is age limit for current olympic?
14
What is function of fixe resistor?
To limit the current
What is the function of fixed resistor?
To limit the current
Why latching current is more than holding current in thyristor?
Holding current is a kind of Imin i.e., a minimum rating current which should not be decreased less than this limit so that SCR will be off(Maximum limit).Whereas latching current is again a limit which is Imini.e., a minimum current that should be there to make it on(Minimum limit).So obviously Holding current is more than latching current.If u still have the confusion go through the link below ALi RAZA
What does not limit current flow in a circuit - capacitance - high conductor resistance or longer conductor?
Of the three choices, capacitance does not limit current flow in an AC circuit.
How many wireless controllers can I connect at once?
You can use a controller hub to ad more but i think the limit is 4.
What is a discreet input?
Discrete inputs are inputs to a PLC(programmable logic controller)that require an on or off signal. Limit switches,push buttons,selector switches or relay contacts would be good examples of devices used on discrete inputs.Hope this helps.Inputs often refers to data that is entered into a computer. The resources that are needed for production purposes can also be called inputs. Some of these things are raw materials, energy, and machines, for example. People can also offer their input on a situation. Most people use the word input instead of inputs.
