Emerson Process Management DVS205 User Manual
2.5:DVS205
Specification Sheet
January
2009
Remote Automation Solutions
Website: www.EmersonProcess.com/Remote
DVS205 Dual-Variable Sensor
The DVS205 Dual-Variable Sensor (DVS) 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.
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.
Variables
Functionally, the DVS 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 DVS.
measures two flow-related variables simultaneously:
differential pressure and static pressure. These
variables are continuously available to the FloBoss
unit that polls the DVS.
Transducer and Electronics
The DVS 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.
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
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.
microprocessor linearizes and corrects the raw
pressure signals (from the sensor) using
characterization data stored in non-volatile memory.
The electronics also allow the DVS to communicate
with a FloBoss using a Serial Peripheral Interface
(SPI).
with a FloBoss using a Serial Peripheral Interface
(SPI).
Accuracy
Two versions of the DVS transmitter are available:
DVS205P with reference accuracy of 0.075% of
DVS205P with reference accuracy of 0.075% of
the full span.
DVS205E with reference accuracy of 0.10% of
the full span.
Mounting
The DVS 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 DVS to mount on an integral
orifice assembly or manifold valve.
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 DVS to mount on an integral
orifice assembly or manifold valve.
Coupling
Sensor Body
Coplanar
Flange
Flange
D301569
X012
DVS205 Dual-Variable Sensor