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14-1
Rosemount Tank Radar REX
Chapter 14 Technical Data
Installation Manual
308014EN, Edition 4
May 2013
14. Technical Data
14.1 RTG 3900
Ambient operating temperature: -40°C to +70°C (-40°F to +158°F)
Hazardous locations certifications II 2G Ex d IIB Gb T6 (T
amb
= -40 °C
to +70 °C) according to ATEX
directive (EN 50014, EN 50018,
EN 50020, EN 50284 Europe).
Class 1, Div I, Groups C and D
according to UL 1203, UL 913, UL
508 (USA).
Ex d IIB Gb T6 (T
amb
= -40 °C to
+70 °C) according to IECEx.
Instrument accuracy 0.5 mm (0.02 inch)*.
Maximum instrument deviation 0.8 mm (0.03 inch).
Power supply 100-240 VAC, 50-60 Hz, average
15 W (maximum 80 W at gauge
power-up in temperatures below
freezing point).
Optional: 34-70 VAC,
20-28 VDC,
48-99 VDC.
Analog outputs One output, 4-20 mA passive or
active (non-intrinsically safe).
Analog inputs alt 1) One or two 4-20 mA.
alt 2) One 4-20 mA input plus one
digital HART input (The RTG is
HART master. Each RTG can have
maximum 3 HART slaves).
Relay outputs Max 2 relays. Only one output is
available if analog outputs are
included. (See below, Field bus
and other communication
protocols).
Temperature inputs Up to 6 PT 100 Resistance
Temperature Detector (RTD)
inputs with common return or 3
RTD inputs with individual wiring,
directly in TH. Up to 14 RTD inputs
via separate Data Acquisition Unit.
Field data display In separate Data Acquisition Unit
(DAU) or Remote Display Unit
(RDU).
* The instrument accuracy is given as a 2 value. This means that approximately 97 % of the mea-
sured values are within the 0.5 mm tolerance.