What is the dissipation loss for a pressure transmitter?

The term ?dissipation loss? are available in the info sheet for a pressure sensor or pressure transmitter. One needs this specification to become in a position to protect the pressure sensor from overheating.
In case a pressure sensor is operated in a hot environment, it could be essential to limit its electrical power. If one neglects this aspect, one possibly risks an overheating and with this, in the worst case, a total failure of the instrument. Just how can the correct electrical connection be managed?
Determination of the right electrical connection on the basis of the dissipation loss
First, the maximum permissible electrical power for the pressure sensor should be known. That is given in the data sheet as the dissipation loss. Please be aware that the dissipation loss can be dependent upon the maximum expected operating temperature of the instrument and should be calculated where necessary.
If the allowable dissipation loss has been determined correctly, then the actual maximum electrical energy for the pressure sensor that occurs could be determined. The determination can be carried out expediently in two steps:
1. Determination of the voltage at the pressure transmitter utilizing the following formula:
UPressure transmitter = UVoltage source ? Supercharge � Imax. Current supply
2. Calculation of the maximum electrical energy for the pressure transmitter through the next equation:
PPressure transmitter = UPressure transmitter � Imax. Current supply
The maximum electrical power for the pressure transmitter (PPressure transmitter), which is now known, should be smaller than the permissible dissipation loss. If this is actually the case, both the power supply (UVoltage source) and the load (RLoad) were properly calculated and the electrical energy of the pressure sensor will undoubtedly be within the permissible range under all operating conditions. Consequently, Bloody will not heat too strongly and can withstand the required operating temperatures.
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