Describe the importance of three wire and four wire configuration for RTD with suitable circuit diagram.

Describe the importance of three wire and four wire configuration for RTD with suitable circuit diagram.
by

1 Answer

Answer :

Three wire RTD:

image

Four wire RTD:

image

Three wire configurations is used to help the circuit compensate for lead wire resistance, and thus provide a truer indication of the measured temperature.

Four wire RTDs provide slightly better compensation, but are generally found only in laboratory equipment and other areas where high accuracy is required. When used in conjunction with a 3-wire instrument, a 4 wire RTD will not provide any better accuracy. If the fourth wire is not connected, the device is only as good as the 3 wire RTD; if the fourth wire is connected, new errors will be introduced.. A 2 wire RTD can be used with either a 3-4 wire instrument by jumping the appropriate terminals, although this defeats the purpose and reintroduces the uncompensated resistance of the leads. To get the optimum performance, it is generally best to specify the RTD configuration. 

by

Related questions

Which type of flow is measured by hot wire anemometer and describe its working principle with suitable diagram.

Description : Which type of flow is measured by hot wire anemometer and describe its working principle with suitable diagram. 

Last Answer : Heat transfer flowmeters this type of flowmeter measures the rise in temperature of the fluid after a known amount of heat has been added to it. Its theory is based upon the specific heat equation ... a supply so as to maintain the wire temperature constant, when the amount of heat transfer varies

Sketch pin configuration of IC 723. State functions of each pin. Sketch circuit diagram for obtaining 6V output d.c. regulated voltage using IC 723.

Description : Sketch pin configuration of IC 723. State functions of each pin. Sketch circuit diagram for obtaining 6V output d.c. regulated voltage using IC 723.

Last Answer : 1) Pin configuration of IC 723 :  2) Functions of each pin:-  V+ and V-: These are the supply voltage terminals of the IC. V+ is the positive terminal and V- is the negative terminal.  Non ... Expression Vout = Vref * (R2 / R1+R2)  Assume any value of R2, R1 can be calculated. 

Describe construction and working of Resistance Temperature Detector (RTD).

Description : Describe construction and working of Resistance Temperature Detector (RTD).

Last Answer : RTD:  Construction and working: Resistance thermometer bulbs consist of a coil of fine wire wound or in a frame of insulating material. The resistance wire itself must be homogeneous in order to ... surrounding it. Thus RTD is used to measure temperature in terms of change in resistance.

Describe amplitude shift keying (ASK) modulation with suitable circuit diagram.

Description : Describe amplitude shift keying (ASK) modulation with suitable circuit diagram.

Last Answer : Explanation:- ASK MODULATOR: The process where a binary information signal directly modulates the amplitude of an analog carrier. The digital signal is used to switch the carrier between amplitude levels is ... Block diagram of ASK Transmitter / ASK modulator:-  Waveforms:- 

Compare RTD and Thermistor

Description : Compare RTD and Thermistor

Last Answer : RTD Thermistor Made of metals which are good conductors of electricity e.g. copper, platinum Nickel Made of metallic oxides such as cobalt, manganese, nickel etc. Positive temperature coefficient ... small in size. Cost is high  They are not costlier as compared to RTD

Draw and explain temperature measurement using RTD. State its advantages and disadvantages.

Description : Draw and explain temperature measurement using RTD. State its advantages and disadvantages.

Last Answer : https://youtu.be/rYcglFW4y0I

Compare RTD and thermistor on the basis of temperature coefficient , linearity, temperature range and cost.

Description : Compare RTD and thermistor on the basis of temperature coefficient , linearity, temperature range and cost.

Last Answer : Parameters RTD Thermistors Temperature coefficient  It has positive temperature Coefficient (PTC) of Resistance. It has both positive and negative temperature Coefficient (PTC and NTC) of Resistance. ... -270oC to 2800oC -150oC to 300oC Cost High cost Low cost

Draw circuit diagram of symmetrical configuration of bridge converter.

Description : Draw circuit diagram of symmetrical configuration of bridge converter.

Last Answer : circuit diagram of symmetrical configuration of bridge converter

The sensor connected to 'signal conditioner' (6000F125) shown in the illustration is a/an ______________. EL-0094 A. thermocouple B. transducer C. inverter D. RTD

Description : The sensor connected to 'signal conditioner' (6000F125) shown in the illustration is a/an ______________. EL-0094 A. thermocouple B. transducer C. inverter D. RTD

Last Answer : Answer: B

The sensor connected to 'signal conditioner' (6000AH170) shown in the illustration is a/an _____________. EL-0094 A. thermocouple B. transducer C. inverter D. RTD

Description : The sensor connected to 'signal conditioner' (6000AH170) shown in the illustration is a/an _____________. EL-0094 A. thermocouple B. transducer C. inverter D. RTD

Last Answer : Answer: A

The sensor connected to 'signal conditioner' (6000F085) shown in the illustration is a/an ______________. EL-0094 A. thermocouple B. transducer C. inverter D. RTD

Description : The sensor connected to 'signal conditioner' (6000F085) shown in the illustration is a/an ______________. EL-0094 A. thermocouple B. transducer C. inverter D. RTD

Last Answer : Answer: D

Which sensor shown in the illustration develops its own conditioning and point setting and 'reports' directly to the 'annunciator'? EL-0094 A. Transducer B. Resistance Temperature Detector (RTD) C. Pressure Switch D. Thermocouple

Description : Which sensor shown in the illustration develops its own conditioning and point setting and 'reports' directly to the 'annunciator'? EL-0094 A. Transducer B. Resistance Temperature Detector (RTD) C. Pressure Switch D. Thermocouple

Last Answer : Answer: C

What is resistance temperature detector (RTD) and mention some examples?

Description : What is resistance temperature detector (RTD) and mention some examples?

Last Answer : Resistance temperature detector is an instrument, which is used to measure temperature. This uses the property that the resistance of a metal changes (increases of decreases) with temperature. This ... calibrated to measure temperature. Different types of RTD's are Platinum, copper, nickel.  

Give construction working principle of RTD with a neat sketch.

Description : Give construction working principle of RTD with a neat sketch.

Last Answer : Diagram Working: An RTD (resistance temperature detector) is a temperature sensor that operates on the measurement principle that a material's electrical resistance changes with temperature. ... change m resistance of the RTD, which is then used to calculate change in temperature.

What device is similar to an RTD but has a negative temperature coefficient?

Description : What device is similar to an RTD but has a negative temperature coefficient?  A) Strain gauge B) Thermistor C) Negative-type RTD D) Thermocouple

Last Answer : What device is similar to an RTD but has a negative temperature coefficients 

Describe with neat circuit diagram the method of measurement of power in a High voltage, high current a.c circuit.

Description : Describe with neat circuit diagram the method of measurement of power in a High voltage, high current a.c circuit.

Last Answer : Circuit diagram:  Explanation:  The primary winding of P.T is connected across high voltage side and secondary winding is connected to pressure coil of low range wattmeter. The high voltage is ... is used Real power consumed = reading of wattmeter x ratio of C.T x ratio of P.T

Describe control of a single lamp from three places. Draw the relevant circuit diagram.

Description : Describe control of a single lamp from three places. Draw the relevant circuit diagram. 

Last Answer : Single lamp control from three places-  It consists of two way switches & intermediate switch, the circuit diagram is as shown in figure. We require two 2-way switches and one intermediate switch and a lamp ... position of any one switch is changed, then the lamp will be turned off.

Describe how memory is allocated to objects of class with suitable diagram.

Description : Describe how memory is allocated to objects of class with suitable diagram.

Last Answer : Description: The memory space for object is allocated when they are declared and not when the class is specified. Actually, the member functions are created and placed in memory space only once when ... variables will hold different data values for different objects this is shown in fig:  

With suitable diagram describe structure of C++ program.

Description : With suitable diagram describe structure of C++ program.

Last Answer : General C++ program has following structure. INCLUDE HEADER FILES CLASS DECLARATION MEMBER FUNCTIONS DEFINITIONS MAIN FUNCTION PROGRAM   Description:-  ... Function Program In this section programmer creates objects and calls various functions writer within various class. 

Describe the operation of transistor as a switch with suitable diagram.

Description : Describe the operation of transistor as a switch with suitable diagram.

Last Answer : In Bipolar Transistor as a Switch the biasing of the transistor, either NPN or PNP is arranged to operate the transistor at both sides of the I-V characteristics curves. The areas of operation for a transistor ... . OR Open switch Table indicating transistor as switch

Describe galvanizing process with suitable diagram.

Description : Describe galvanizing process with suitable diagram.

Last Answer : It is the process of coating iron or steel sheets with a thin coat of zinc to prevent it from rusting. Process: The iron or steel sheet to be galvanized is first cleaned with dilute ... rollers to remove excess zinc and in order to get uniform coating. Finally it is annealed at 6500C. 

With Suitable diagram, describe state transition diagram.

Description : With Suitable diagram, describe state transition diagram.

Last Answer : An active process is normally in one of the five states in the diagram. The arrows show how the process changes states. A process is running if the process is assigned to a CPU. A ... terminated state from the running state. In halted state, the memory occupied by the process is released. 

Identify type of BJT configuration having following features : (i) BJT configuration having the least current gain. (ii) KIT configuration called as voltage follower. (iii) BJT configuration having current gain less than one. (iv) BJT configuration suitable for impedance matching. (v) BIT configuration suitable for voltage amplification. (vi) BJT configuration having the least output impedance.

Description : Identify type of BJT configuration having following features : (i) BJT configuration having the least current gain. (ii) KIT configuration called as voltage follower. (iii) BJT ... configuration suitable for voltage amplification. (vi) BJT configuration having the least output impedance.  

Last Answer : (i) BJT configuration having the least current gain : Common Base Configuration  (ii) KIT configuration called as voltage follower: Common Collector Configuration  (iii) BJT ... Emitter Configuration  (vi) BJT configuration having the least output impedance: Common Collector Configuration

What is the electron configuration of the oxide ion (O ^-2) *The "^" represents a superscript. *Review at the diagram below for help.?

Description : What is the electron configuration of the oxide ion (O ^-2) *The "^" represents a superscript. *Review at the diagram below for help.?

Last Answer : 1s2 2s2 2p4

Explain working of 'hot wire anemometer with the help of diagram.

Description : Explain working of 'hot wire anemometer with the help of diagram. 

Last Answer : Diagram : Working: The hot-wire anemometer is a fine resistance wire heated by a current passing through it. If a cooler fluid flows past the wire, heat is removed from it by the ... and responsive to high-frequency change in flow rate. One of its main application is aerodynamic research.

Draw the circuit diagram for Instrumentation amplifier using three OP-AMPs. State its advantages and applications.

Description : Draw the circuit diagram for Instrumentation amplifier using three OP-AMPs. State its advantages and applications.

Last Answer : Application: 1. In Data acquisition from low output transducers such as strain gauges, Thermocouples, Wheatstone bridge measurements e.t.c 2. In Medical instrumentation, Navigation, Radar ... video data acquisition and imaging 5. High frequency signal amplification in cable RF systems 

State what is the significance of conducting phasing out test on a 3-phase transformer? Explain its procedure with a suitable connection diagram.

Description : State what is the significance of conducting phasing out test on a 3-phase transformer? Explain its procedure with a suitable connection diagram.

Last Answer : -Short primary & secondary winding of other phases expect the one under test. -Connect voltmeter to secondary winding. -A small DC current is circulated through the primary winding through ... . -The test repeated for finding out remaining concerned secondary windings in the same manner.

With the help of suitable diagram, explain how humidity is measured with dry and wet bulb thermometer.

Description : With the help of suitable diagram, explain how humidity is measured with dry and wet bulb thermometer.

Last Answer : Explanation:- 1. A psychrometer, or wet-and-dry-bulb thermometer, consists of two thermometers, one that is dry and one that is kept moist with distilled water on a sock or ... , and in the HVAC industry for proper refrigerant charging of residential and commercial air conditioning systems. 

How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.

Description : How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.

Last Answer : Extension of A.C. Ammeter Range: The range of a.c. ammeter can be extended by using CT, the arrangement is shown in figure. The CT is current transformer having less number of primary turns carrying high ... high magnitude of source voltage. In this way range of a.c. voltmeter can be extended.

Explain working of pressure switch with suitable diagram. State the function of differential setting in pressure switch.

Description : Explain working of pressure switch with suitable diagram. State the function of differential setting in pressure switch.

Last Answer : Pressure switch is used to turn on/off when specified pressure is reached. It consists of a pressure port and bellows. When pressure is applied, bellows expand and actuate the snap action ... pressure setting i.e. hysteresis setting. This prevents chattering of pressure switch contacts.

The local loop of the telephone system is understood to be A. a single piece of wire connecting the subscriber’s telephone set to another telephone set in an adjacent room B. a two-wire or four-wire communication circuit between the customer’s premise and central office C. a four-wire circuit connecting a facsimile machine to a computer D. a group of wires connecting a telephone set to a modem

Description : The local loop of the telephone system is understood to be A. a single piece of wire connecting the subscriber's telephone set to another telephone set in an adjacent room B. a two-wire or four- ... a facsimile machine to a computer D. a group of wires connecting a telephone set to a modem

Last Answer : B. a two-wire or four-wire communication circuit between the customer’s premise and central office

Describe any four points of importance of primary sector in the Indian economy. -SST 10th

Description : Describe any four points of importance of primary sector in the Indian economy. -SST 10th

Last Answer : (i) Primary sector contributes more than 20% to the GDP of India. (ii) Its employment share is more than 55%. (iii) It is the most labouring sector of Indian economy. (iv) It covers agriculture, dairy, fishing, forestry which all contribute to the Indian economy.

Draw the circuit diagram and describe the working principle of full wave bridge rectifier. Draw its waveforms.

Description : Draw the circuit diagram and describe the working principle of full wave bridge rectifier. Draw its waveforms. 

Last Answer : During the first half cycle : During the first half cycle of the input voltage, the upper end of the transformer secondary winding is positive with respect to the lower end. Thus during the first ... , terminal D, diode D4, and terminal A back to transformer and output will positive half cycle.

Draw the circuit diagram of multi range AC voltmeter and describe its working

Description : Draw the circuit diagram of multi range AC voltmeter and describe its working

Last Answer : The above circuit looks like a multi range AC voltmeter. We know that, we will get AC voltmeter just by placing rectifier in series (cascade) with DC voltmeter. The above circuit was created ... any two points of an electric circuit, by connecting the switch, S to the desired voltage range.

Describe working of A.C. voltmeter using half wave rectifier with neat circuit diagram.

Description : Describe working of A.C. voltmeter using half wave rectifier with neat circuit diagram. 

Last Answer : AC Voltmeter using Half Wave Rectifier : The a.c. voltmeter using half wave rectifier is achieved by introducing a diode in a basic d.c. voltmeter. This is shown in the Fig. 1. The diode D ... can be obtained for a.c. voltmeter as, Where Idc is the full scale deflection current..

Describe working of negative clamper circuit with neat diagram and waveform.

Description : Describe working of negative clamper circuit with neat diagram and waveform.

Last Answer : Working: In the first positive half cycle the capacitor will charge through the forward biased diode to peak voltage Vm as shown in circuit. Charging takes place very quickly as the ... reverse biased and stop conducting. Negative clamper adds a negative DC shift as shown in waveform.

Draw and describe circuit diagram of centre tapped rectifier with LC filter along with its input and output waveforms.

Description : Draw and describe circuit diagram of centre tapped rectifier with LC filter along with its input and output waveforms.

Last Answer : Explanation: A centre- tap full wave rectifier drive produces the rectified voltage and it drives the LC filter. We know that the series inductor filter is preferred for low values of load resistance ( ... load RL. The output voltage waveforms are similar to that as shown in figure above.  

Describe the circuit diagram of AC signal conditioning.

Description : Describe the circuit diagram of AC signal conditioning. 

Last Answer : The block diagram of a.c. signal conditioning system:-  Working:- This is carrier type a.c. signal conditioning system. The transducer used is variable resistance or variable ... signal conditioning includes the circuits like sample and hold, multiplexers ,analog to digital converters etc.

Sketch the block diagram of function generator & describe the circuit of sine wave generation.

Description : Sketch the block diagram of function generator & describe the circuit of sine wave generation.

Last Answer : Block Diagram Explanation‐ For generation of sinewave , out of the three knobs‐ sine, square and triangular , the sine knob is pressed, output is adjusted for required frequency and amplitude using frequency and amplitude

Draw the circuit diagram of complementary symmetry Class B push-pull amplifier and describe its working.

Description : Draw the circuit diagram of complementary symmetry Class B push-pull amplifier and describe its working.

Last Answer : Diagram of complementary symmetry Class B push-pull amplifier: Working: The above circuit employs a NPN transistor and a PNP transistor connected in push pull configuration. When the input ... of class B, this circuit is termed as Complementary symmetry push pull class B amplifier.

Describe the construction of SF6 circuit breaker with neat diagram.

Description : Describe the construction of SF6 circuit breaker with neat diagram.

Last Answer : Construction of SF6 Circuit Breaker : A sulphur hexafluoride (SF6) circuit breaker consists of fixed and moving contacts enclosed in a chamber. The chamber is called arc interruption ... contact, moving contact and arcing horn are coated with a copper-tungsten arc-resistant material. 

Describe power down mode and ideal mode of 8051 with circuit diagram . which SFR is used to set these modes and draw the same.

Description : Describe power down mode and ideal mode of 8051 with circuit diagram . which SFR is used to set these modes and draw the same.

Last Answer : IDLE MODE In the Idle mode, the internal clock signal is gated off to the CPU, but not to the Interrupt, Timer and Serial Port functions. The CPU status is preserved in its entirety, the Stack Pointer, ... t change on chip RAM PCON (Power Control Register) SFR is used to set these modes.

Describe with neat circuit diagram the measurement procedure of earth resistance for an installation.

Description : Describe with neat circuit diagram the measurement procedure of earth resistance for an installation. 

Last Answer : Following procedure (Method) for testing of earth pit resistance with necessary diagrams. 1) Earth Tester : i) Three point method ii) Four point method 2) By Potential drop method 3) Water ... of that earthing pit. In this test the accuracy is less but electrical rods are not required.  

Describe the operation of double tuned amplifier with the help of neat circuit diagram and mention its applications.

Description : Describe the operation of double tuned amplifier with the help of neat circuit diagram and mention its applications.

Last Answer : Circuit diagram: Operation:  *The signal to be amplified is applied at the input terminal through the coupling capacitor CC  *The resonant frequency of the tuned circuit L1 C1 is made equal ... : (i) Radio and T .V broadcasting as tuning circuit. (ii) Wireless communication system.

Draw the circuit diagram of class AB power amplifier and describe its working.

Description : Draw the circuit diagram of class AB power amplifier and describe its working.

Last Answer : Circuit diagram: Circuit Description: The circuit consists of two center-tapped transformers T1 and T2, two identical transistors Q1 and Q2 , Resistor R and diode D. The DC voltage ... and Q2 conduct, as soon as input cross zero, negative sinusoidal voltage will appear across load.

Describe how Op-Amp is used as adder using circuit diagram and output voltage equation.

Description : Describe how Op-Amp is used as adder using circuit diagram and output voltage equation.

Last Answer : Summing Amplifier Circuit In this simple summing amplifier circuit, the output voltage, ( Vout ) now becomes proportional to the sum of the input voltages, V1, V2, V3, etc. Then we can ... to the non-inverting input of the op-amp, it will produce the positive sum of the input voltages.

Describe the working principle of Thyristor operated dimmer with the help of circuit diagram.

Description : Describe the working principle of Thyristor operated dimmer with the help of circuit diagram.

Last Answer : Thyristor operated dimmer: A popular thyristor operated dimmer circuit employ TRIAC-DIAC phase control for low AC power control. During each half-cycle, the capacitor charges through (R1+VR1). When the ... time constant {C (R1+VR1)}. Thus by reducing VR1 the lamp brightness can be increased.

A disadvantage of using the configuration in the illustrated circuit is _________. EL-0045 A. no current gain B. high input resistance C. high voltage gain D. becomes unstable with an increase of ambient temperature

Description : A disadvantage of using the configuration in the illustrated circuit is _________. EL-0045 A. no current gain B. high input resistance C. high voltage gain D. becomes unstable with an increase of ambient temperature

Last Answer : Answer: A