Figure 2 Pwd22/52 Block Diagram - Vaisala PWD22/52 User Manual

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