（1） Pressure guide tube thickness should be appropriate, the general inner diameter is 6 10mm, the length should be as short as possible, the maximum length should not be more than 50M, in order to reduce the delay of pressure indication. Si supera los 50 m, se debe seleccionar el manómetro que pueda transmitir a larga distancia.
（2） When the pressure guide pipe is installed horizontally, it should be guaranteed to have a tilt of 1:10 1:20 to facilitate the discharge of the liquid (or gas) accumulated in it.
（3）Cuando el medio medido es fácil de condensar o congelar, es necesario agregar una tubería de seguimiento de preservación del calor.
（4）There should be a cut-off valve between the pressure outlet and the pressure gauge to prepare for the use of maintenance pressure timing. La válvula de corte-debe instalarse cerca de la salida de presión.
