Emerson Process Management DVS205 - Manual

DVS205
April 2011
Technical Specifications
DVS205 Dual-Variable Sensor
The DVS205 Dual-Variable Sensor (DVS205)
provides static pressure and differential pressure
inputs to a FloBoss™ 103, FloBoss 107E, or FloBoss
500-Series Flow Manager. The DVS205
communicates via a serial format with the FloBoss.
Remote Automation Solutions
Website: www.EmersonProcess.com/Remote
D301569
X012
Variables
Functionally, the DVS205 is a digital transmitter that
measures two flow-related variables simultaneously:
differential pressure and static pressure. These
variables are continuously available to the FloBoss
unit that polls the DVS205.
Transducer and Electronics
The DVS205 contains a transducer and an
electronics circuit. The transducer uses capacitance-
cell technology to sense differential pressure and
piezoresistive technology to sense the static
(absolute or gauge) pressure.
The transducer electronics convert the pressure
variables directly into a digital format, allowing
accurate correction and compensation. A
microprocessor linearizes and corrects the raw
pressure signals (from the sensor) using
characterization data stored in non-volatile memory.
The electronics also allow the DVS205 to
communicate with a FloBoss using a Serial
Peripheral Interface (SPI).
Accuracy
Two versions of the DVS205 are available:
ƒ 205P with reference accuracy of 0.075% of the
full span.
ƒ 205E with reference accuracy of 0.10% of the
full span.
Mounting
The DVS205 is factory installed on a FloBoss™ 103,
FloBoss 107E, or FloBoss 500-Series Flow Manager
to comply with agency requirements. Attached to the
bottom of the sensor body is a Coplanar™ flange.
This flange allows the DVS205 to mount on an
integral orifice assembly or manifold valve.
Coupling
Sensor Body
Coplanar
Flange
W8826-A
DVS205 Dual-Variable Sensor