Vaisala WXT520 - Manual (Page 144)

User’s Guide ______________________________________________________________________
142 _________________________________________________________________ M210906EN-C
Inputs and Outputs
Table 17 Inputs and Outputs
Property Description/Value
Operating voltage
5 ... 32 VDC 1
1. Below 5.3 V the measurement performance for high wind speeds may be
degraded.
Average current consumption
minimum
0.1 mA @ 12 VDC (SDI-12 standby)
typical 3 mA @ 12 VDC (with default measuring
intervals)
maximum 14 mA @ 5 VDC (with constant
measurement of all parameters)
Heating voltage Options: DC, AC, full-wave rectified AC
typical ranges 12 VDC ± 20 %, 1.1 A max
24 VDC ± 20 %, 0.6 A max
68 V
p-p
± 20 % (AC), 0.6 A
rms
max
34 V
p
± 20 % (f/w rect. AC), 0.6 A
rms
max
absolute max 32 VDC
84 V
p-p
(AC)
42 V
p
(f/w rect. AC)
Digital outputs SDI-12, RS-232, RS-485, RS-422
Communication protocols SDI-12 v1.3, ASCII automatic & polled,
NMEA 0183 v3.0 with query option