| English | Russian |
| active leg | активное колено (A regulator and a nitrogen blanket used to prevent vapor condensation in the vapor space. A top transmitter is required because the regulator is not a perfect controller Метран) |
| dry leg | сухое колено (The use of tubing (possibly heat traced and insulated to keep the product in a vapor state) running from the vapor space to the low side of the installed pressure transmitter(s). The transmitter(s) are used in the differential pressure mode. This method allows the transmitters to be calibrated with a lower pressure span. No top transmitter is needed, although one could be used to monitor the vapor pressure Метран) |
| wet leg | мокрое колено (A filled reference connection between the vapor space area of a tank and the low pressure side of the transmitter. Wet legs are used when condensation is common and dry legs are impractical. The pressure exerted by the weight of the fluid in the wet leg must be compensated for in the calibration of the transmitter Метран) |
