Hydrological Services Pty Ltd
Wireless Level Transmitter
©
Copyright
WLT420 100-6
Issue 1.20 5 Dec, 2007
B
Battery -
Aerial
Wireless Level
Receiver
4-20mA
4-20mA output -
Configuration
DIP Switches
The Wireless Level Receiver has an optically isolated 4-20mA output that is powered by the
external 4-20mA power.
DIP Switches 1,2,3 set the transmission frequency
and DIP switch 4 sets the frequency band for :
USA and Australia.
0 = 905.5MHz 917.5MHz
1 = 906.5MHz 918.5MHz
2 = 907.5MHz 919.5MHz
3 = 908.5MHz 920.5MHz
4 = 909.5MHz 921.5MHz
5 = 910.8MHz 922.5MHz
6 = 911.9MHz 923.5MHz
7 = 912.5MHz 924.5MHz
1
2
3
4
0=off
1=on
4:
0=AUS 1=US
Freq 0 1 2 3 4 5 6 7
1: 0 1 0 1 0 1 0 1
2: 0 0 1 1 0 0 1 1
3: 0 0 0 0 1 1 1 1
+
-
Battery
4-20mA
+
Wireless Level
Receiver
4-20mA output -
Switched
Power
Measure
-
