What’s 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 in order to be in a position to protect the pressure sensor from overheating.
If a pressure sensor is operated in a hot environment, it is usually necessary 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. Just how can the correct electrical connection be managed?
Determination of the correct electrical connection based on the dissipation loss
First, the utmost permissible electrical energy for the pressure sensor should be known. This is given in the info 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 occurring 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 ? The Truth � Imax. Inconsiderate . Calculation of the utmost electrical power for the pressure transmitter through the following equation:
PPressure transmitter = UPressure transmitter � Imax. Current supply
The maximum electrical energy 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 (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, the pressure transmitter will not heat too strongly and will withstand the mandatory operating temperatures.
Note
In the event you need any advice, your contact will gladly help you.

Leave a Comment