Emerson 308014EN Manuel D’Utilisation

Page de 166
3-1
Rosemount Tank Radar REX
Chapter 3 Description of 3900 REX
Installation Manual
308014EN, Edition 4
May 2013
3.
Description of 3900 REX
3.1
Transmitter Head RTG 3900 REX
Depending on the type of tank connection unit that the transmitter head 
is mounted on, there are four types of Radar Tank Gauges. The 
transmitter head contains all the electronics for signal processing, 
communication and connection of external sensors. The RTG 3900 
transmitter head is used on all the gauge types 3920 - 3960.
Figure 3-1. The RTG 3900 gauge can use different antennas.
RTG 3920
RTG 3930
RTG 3950
RTG 3960
The Horn Antenna 
Gauge
 for fixed roof 
installation without still 
pipe. 
The Parabolic 
Antenna Gauge
 for 
demanding environ-
ments without still pipe.
The Still Pipe Gauge 
for measuring in still 
pipes. 
The LPG/LNG Gauge 
for liquid gas, LPG and 
LNG.
3900_TH.eps