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| English | Russian |
| P B | датчик давления P B (Identifies the bottom pressure transmitter. This transmitter typically should be located above the bottom of the tank. The transmitter must be mounted above the water bottom, if any Метран) |
| P T | датчик давления P T (Identifies the top pressure transmitter. This transmitter, if needed, should be mounted in an upright position in order to drain any condensation away from the diaphragm Метран) |