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| Article | Description / Summary |
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| UAP1093 | Air Gas Ration Alarm Device Natural gas requires around 10 volumes of air per volume of gas for correct combustion. If the ratio of combustion air flow to natural gas flow drops below a set ratio, unburnt combustibles may be present in the flue gas. For some burners, ... |
| UAP0035 | Gas Flow Rate using Temperature and Pressure Compensation Operating Description The USC701 will produce a 4-20mA output proportional to the Gas Flow Rate. The Gas Flow Rate is calculated from the following equation: where the units are: Kg/sec for the Mass Flow Rate. m ² for A the cross-sectional ... |
| UAP1063 | Instantaneous/Total Flow from Pressure Sensor The basic flow is determined from a differential pressure sensor, this paticular application uses two sensors to improve sensitivity at the low end of the range; CH1 4-20mA measures 0-60mbar CH2 4-20mA measures 0-1300mbar When the pressure ... |