Vaisala PTU200 Series User's Guide download pdf (Page 9)

CHAPTER 3___________________________________________________________ GETTING STARTED

VAISALA __________________________________________________________________________ 5

CHAPTER 3 GETTING STARTED

Mounting

Choose a place, which represents the environment to be measured, and

is as clean as possible. Air should circulate freely around the probe; it

ensures that the sensor head and the ambient air are at the same

temperature.

NOTE

For outdoor installation of the PTU200 transmitter, it is

recommended to use a PTU200MIK mounting kit. For further

information, please contact Vaisala or Vaisala distributor.

Please take into a consideration that the pressure fitting supplied with

the transmitter is not a static pressure head and that the transmitter

cannot be used successfully as such in turbulent or high speed static

wind conditions.

NOTE

The barometric pressure measurement accuracy quoted for the

PTU200 series digital transmitters does not include any wind or air

conditioning system measurement errors.

Electrical connections

PTU200 series transmitters have as a standard a RS 232C and as an

option a RS485/422 serial interface. Connect the RS 232C serial

interface and a power supply according to the following pin

assignment.

1234

FIGURE 3-1 9-pin female sub D-connector

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 63 64

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Vaisala PTU200 Series User's Guide Page 9