Vent - Emerson FIELDVUE DVC6200f Instruction Manual

DVC6200f Digital Valve Controller
FOUNDATION FIELDBUS
H1 SEGMENT
2
DVC6200f DIGITAL VALVE
CONTROLLER WITH RELAY C
NOTES:
1/4-18 NPT X 3/8 OD TUBING
ELECTRICAL WIRING

Vent

Personal injury or property damage
can occur from cover failure due to
overpressure. Ensure that the
housing vent opening is open and
free of debris to prevent pressure
buildup under the cover.
This unit vents the supply medium
into the surrounding atmosphere.
When installing this unit in a
non-hazardous (non-classified)
location in a confined area, with
natural gas as the supply medium,
you must remotely vent this unit to a
safe location. Failure to do so could
result in personal injury or property
damage from fire or explosion, and
area re-classification.
When installing this unit in a
hazardous (classified) location remote
venting of the unit may be required,
depending upon the area
classification, and as specified by the
requirements of local, regional, and
18
Port A
Port B
MONITORING LINE
Figure 2-7. Pneumatic Hookup for Solenoid Testing (Instrument Level PD only)
WARNING
WARNING
24/48 VDC
110/220 VAC, etc.
CONTROL LINE
SUPPLY PRESSURE
SPRING RETURN ACTUATOR
federal codes, rules and regulations.
Failure to do so when necessary could
result in personal injury or property
damage from fire or explosion, and
area re-classification.
Vent line piping should comply with
local and regional codes, should be as
short as possible with a minimum
inside diameter of 12.7 mm (1/2-inch),
and few bends to reduce case pressure
buildup.
In addition to remote venting of the
unit, ensure that all caps and covers
are correctly installed. Failure to do so
could result in personal injury or
property damage from fire or
explosion, and area re-classification.
The relay constantly bleeds a small amount of supply
medium into the area under the cover. The vent
opening, located below the wiring terminal box on the
side of the housing, should be left open to prevent
pressure buildup under the cover. If a remote vent is
required, the vent lines must be as short as possible
with a minimum number of bends and elbows.
To connect a remote vent, remove the plastic vent.
The vent connection is 3/8 NPT. At a minimum, 12.7
mm (1/2-inch) tubing should be used when installing a
remote vent to prevent excessive pressure from
building up under the cover.
November 2010