Electrical Installation; Rosemount 3300 Series: Hart Version - Emerson Rosemount 3300 Series Reference Manual

Rosemount Radar Level Transmitters
ELECTRICAL
INSTALLATION
Rosemount 3300 Series:
HART Version
Figure 2-11. Wiring diagram for non-intrinsically safe installations of the 3300.
For Explosion-proof/ Flameproof
applications the resistance
between the negative terminal on
the transmitter and the power

supply must not exceed 300
2-12
This is a brief description of the Rosemont 3300 and 5300 wiring procedure.
For more information, see the respective reference manual: Rosemount 3300
Series (Document No. 00809-0100-4811) and Rosemount 5300 Series
(Document No. 00809-0100-4530).
The 3300 Series is a two-wire loop powered transmitter accepting power
supplies ranging from 11 Vdc to 42 Vdc. It uses 4-20 mA power superimposed
with a HART signal. To connect the transmitter:
1. Make sure the power supply is disconnected.
2. Remove the cover on the transmitter housing terminal side (see label).
Do not remove the cover in explosive atmospheres when the circuit is
live. All power to the transmitter is supplied over the signal wiring.
3. Pull the cable through the cable gland/conduit.
4. Connect wires according to Figure 2-11 for non-intrinsically safe output.
Make sure that the transmitter housing is grounded in accordance with
national and local electrical codes. There are two grounding screw
connections provided. One is inside the Field Terminal side of the
housing identified by a ground symbol:
top of the housing.
5. Attach and tighten the housing cover. Tighten the cable gland, plug and
seal any unused connections and connect the power supply.
Rosemount 3300
Series Transmitter
.
For HART communication, a minimum load resistance of 250  within the
loop is required.
The power supply voltage ranges from V
minimum voltage given by:
11 V Non-hazardous locations certification
16 V Explosion-proof/flameproof certification
Reference Manual
00809-0600-4811, Rev AA
, and the other is located on
Load Resistance
Power Supply
HART
modem
375 Field
Communicator
Vdc to 42 Vdc where V
min
February 2009

250 
PC
is the
min