Vaisala PWD22 - Figure 2 PWD22;52 Block Diagram

USER'S GUIDE ____________________________________________________________________
20 __________________________________________________________________ M210543EN-F
1008-014
Figure 2 PWD22/52 Block Diagram
RAINCAP
Rain Detector
(R)
Background Luminance Sensor
PWL111 (option)
PWC Controller / Receiver
Power
Optical Filter
Hood Heater
(option)
PWT11 Transmitter
Temperature Sensor (TS)
Measurement Power
12-50VDC
Serial line
Three Relay Controls
RS-232 Interface
RS-485 Interface (2 wire)
(with hood heaters and luminance sensor,
heater power must be 24VAC or 24VDC)
Heater Power
12...50VDC/VAC