Vaisala DPT146 User's Guide download pdf (Page 34)

User's Guide _______________________________________________________________________

32 ___________________________________________________________________ M211372EN-D

CHAPTER 5

OPERATION

This chapter contains information that is needed to operate the DPT146.

Transmitter Start-Up

When the transmitter is connected to power supply, there is a delay of

five seconds as the transmitter starts up. After the start-up is complete,

the measurement data is available from the analog outputs or serial line.

For a description of how the diagnostic functions of the sensor affect the

availability of live measurement at start-up, see section DPT146 Startup

Sequence on page 20.

If serial line output is used, note that the transmitter will behave

according to the configured serial mode:

- In STOP mode, the transmitter outputs the transmitter model and

software version. This is the default mode.

- In RUN mode, a measurement output starts immediately.

- In POLL mode, the transmitter does not output anything after power-

up.

- In MODBUS mode, the transmitter does not output anything after

power-up.

For a description of the modes, see section Set Serial Line Operating

Mode on page 47.

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Vaisala DPT146 User's Guide Page 34