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2000A Series
Principle of Operation (Figure 6)
The 2000A Series maintain a tight seal until system pressure
exceeds the set pressure of the vent. To adjust the set
pressure, a series of weights may be stacked onto the lid
assembly. When overpressure occurs, the weighted lid
assembly lifts, breaking the seal between the seat and
seal portion of the lid assembly. This allows vapors to pass
through the vent orifice and relieve pressure build up. The
vent reseals upon relief and remains sealed.
Note
Relieving vapors near the set pressure in
a continuous manner may cause the lid
assembly to flutter or oscillate. This is a
common occurrence in products of this type
in the industry. Operating the vent with flutter
or oscillation over time may cause premature
vent damage or wear. Contact your local
Sales Office for additional assistance.
HART
and WirelessHART
are marks owned by FieldComm Group.
®
®
4
VAPOR
FLUID LEVEL
MEDIA
Figure 6. Pressure Flow
Remote Monitoring Option
The Smart Wireless option for the 2000A Series consists of
the EPRV, a proximity sensor, and a wireless transmitter.
The built-in proximity sensor detects the open or closed
position using a magnetic target located on the arm
assembly on the hinged end. A signal is sent to the wireless
transmitter, which can then be sent to a control room via any
WirelessHART
technology is based on the Highly Addressable Remote
Transducer (HART
wireless networking standard used today and, for this
reason, the 2000A Series has been designed to integrate
with it. As long as the wireless gateway is WirelessHART
will receive the Open or Closed signal from the device. The
WirelessHART
control room which can make use of any number of software
integration packages.
Gateway. This wireless sensor networking
®
) protocol. It is the most widely used
®
gateway will then send the information to a
®
, it
®
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