Vaisala PTU300 - Manual (Page 27)

Chapter 2 ___________________________________________________________ Product Overview
VAISALA ________________________________________________________________________ 25
0604-060
Figure 2 Inside the Transmitter
The following numbers refer to Figure 2 above:
1 = Service port (RS-232)
2 = DIP switches for analog output settings
3 = Power supply and signal wiring screw terminals
4 = Relay, RS-422/485, data logger, LAN, WLAN, or analog
output module (optional)
5 = Grounding connector for power supply module
6 = Adjustment buttons (chemical purge buttons) with indicator
LED
7 = Galvanic isolation module (optional)
8 = Temperature probe cable
9 = Humidity probe cable
10 = BARO-1 module
11 = Pressure port
12 = Power supply module.