Vaisala WMT700 - Manual (Page 26)

User's Guide ______________________________________________________________________
Heating
Ordering option 3, Heating, defines if the sensor is equipped with
extra heating for demanding environmental conditions. Option 4
providing full sensor heating is best suited for most demanding
environments. Note that power consumption requirement depends
on the selected heating option.
Table 7 Heating
Option Heating
1 Non-heated
2 Heated transducers (Min. 30 W power supply is needed)
3 Heated transducers and arms (Min. 200 W needed)
4 Heated transducers, arms, and body (Min. 350 W needed)
Digital Communication Interface
Ordering option 4, Digital Communication Interface, defines the
serial line physical interface. Four different standard
communication interfaces are available.
Table 8 Digital Communication Interface
Option Hardware Interface
A RS-485 isolated (1 pair)
B RS-422 isolated
C RS-232 isolated
D SDI-12 isolated
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