Instruction Manual

Instruction Manual
D103434X012
Installation
November 2014
18
WARNING
Select wiring and/or cable glands that are rated for the environment of use (such as hazardous area, ingress protection and
temperature). Failure to use properly rated wiring and/or cable glands can result in personal injury or property damage
from fire or explosion.
Wiring connections must be in accordance with local, regional, and national codes for any given hazardous area approval.
Failure to follow the local, regional, and national codes could result in personal injury or property damage from fire or
explosion.
Personal injury or property damage caused by fire or explosion may occur if this connection is attempted in a potentially
explosive atmosphere or in an area that has been classified as hazardous. Confirm that area classification and atmosphere
conditions permit the safe removal of the terminal box cover before proceeding
Fieldbus Connections
The digital level controller is normally powered over the bus from a fieldbus 9 to 32 volt power supply and can be
connected to the segment using field wiring. Refer to the site preparation guide for proper wire types, termination,
length, etc. for a fieldbus segment.
Note
As shipped from the factory, the DLC3020f will have the transducer block mode set Out of Service. See the Configuration Section
for information on setup and calibration and placing the instrument in service. The initial value for all blocks are shown in the
parameter list for each block in the Blocks section.
Refer to figure 8‐1 for identification of parts.
1. Remove the terminal box cover (key 6) from the terminal box (key 5).
2. Bring the field wiring into the terminal box. When applicable, install conduit using local and national electrical codes
which apply to the application.
3. Connect one wire from the control system output card to the LOOP + terminal in the terminal box as shown in
figure 2‐9. Connect the other wire from the control system output card to the LOOP - terminal. The instrument is
not polarity sensitive.
WARNING
Personal injury or property damage, caused by fire or explosion, can result from the discharge of static electricity. Connect
a 14 AWG (2.08 mm
2
) ground strap between the digital level controller and earth ground when flammable or hazardous
gases are present. Refer to national and local codes and standards for grounding requirements.
4. As shown in figure 2‐9, ground terminals are available for connecting a safety ground, earth ground, or drain wire.
The safety ground terminal is electrically identical to the earth ground. Make connections to these terminals
following national and local codes and plant standards.
5. Replace and tighten the terminal box cover, ensuring that it is weather‐tight; engage the optional set‐screw lock if
required.