Part Number:
014052-01 014079-01Weight:
1.36 kgDimensions:
19 cmx 16 cmx 12 cmManufacture Year:
2022Place of Origin:
USACertification:
CO,CQDescription:
control interface
Product Description:
The other component of the flowmeter is the flow transmitter. The basic functions of the flow
transmitter are to provide power to the flow element, measure the Differential Temperature (∆T)
between the two RTDs as a function of resistance, amplify and linearize the Differential Resistance
(∆R) measurement of the flow element input signal and to provide an output signal.
This output signal is calibrated to the flow rate as a function of velocity, standard volume or mass flow.
To perform these functions, microprocessor-based electronic circuitry is employed to acquire the analog
voltage signals from the RTDs, digitize and interpret the information.
The flow element consists of two pairs of thermowells of the same size, shape and mass. One pair contains
a platinum RTD and a heater element. The other pair contains one RTD. The RTD located next to the heater
element is called the active RTD. The other RTD is referred to as the reference RTD. Since the active RTD
is adjacent to the heater, the temperature at the walls of the thermowell are always above the temperature
of the process media. The temperature at the reference RTD is the temperature of the process media. When
the process media is flowing past the active RTD a quantity of heat is carried off into the flow stream. The
amount of heat taken from the active RTD is a function of the process media mass flow rate. A ∆T exists
between the two pairs of thermowells and a proportional ∆R exists between the active and the reference
RTDs. The ∆R is measured by the flow transmitter. The relationship of ∆T to the mass flow rate is
calculated by the flow transmitter and is converted into a signal or is sent to the flow transmitter's display.
Manager Stella quotes to you
we offer original new with 1 year warrenty
4)Large inventory: Our warehouse is capable of holding up to 60,000 pallet spare parts.
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