Download Vaisala DMP248 Technical data
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OPERATING MANUAL _______________________________________________________________ Pressure compensation PRES pppp.pp <cr> where pppp.pp = absolute pressure (hPa). value has to be entered in the transmitter memory in order to ensure the best possible measurement accuracy. The pressure setting is used for pressure compensation of the DMP248 transmitter. The pressure is given in hPa/mbar; for converting pressure units, see Appendix 8. When the command is given, the transmitter first gives the current pressure; after this the new value can be entered or the current one acknowledged. >PRES <cr> Pressure : 1013.25 ? 1000.00 <cr> When the current pressure is known, a new pressure can also be entered directly: >PRES 1010 <cr> Pressure : 1010 NOTE If the security lock jumper is not connected, the pressure compensation is made with the value 1013.25 hPa. NOTE If the pressure setting is frequently adjusted, e.g. by using an external barometer as a pressure input source, the command XPRES is recommended (see Appendix 1). 48 _____________________________________________________________________ U263EN-1.4