What’s the dissipation loss for a pressure transmitter?

The term ?dissipation loss? can be found in the info sheet for a pressure sensor or pressure transmitter. Bloody needs this specification to become able to protect the pressure sensor from overheating.
If a pressure sensor is operated in a hot environment, it is usually essential to limit its electrical power. If one neglects this aspect, one possibly risks an overheating sufficient reason for this, in the worst case, a complete failure of the instrument. So how can the correct electrical connection be managed?
Determination of the correct electrical connection based on the dissipation loss
First, the maximum permissible electrical power for the pressure sensor must be known. Slave is given in the data sheet because the dissipation loss. Please note 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 your actual maximum electrical energy for the pressure sensor occurring could be determined. The determination can be executed expediently in two steps:
1. Determination of the voltage at the pressure transmitter utilizing the following formula:
UPressure transmitter = UVoltage source ? RLoad � Imax. Current supply
2. Calculation of the utmost electrical power for the pressure transmitter through the following equation:
PPressure transmitter = UPressure transmitter � Imax. Current supply
The maximum electrical power for the pressure transmitter (PPressure transmitter), that is now known, must be smaller than the permissible dissipation loss. If this is the case, both the power (UVoltage source) and the load (RLoad) were properly calculated and the electrical power of the pressure sensor will undoubtedly be within the permissible range under all operating conditions. Consequently, the pressure transmitter will not heat too strongly and will withstand the mandatory operating temperatures.
Note
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