Emerson Process Management specifications 5DVS205, January

Specification Sheet	2.5:DVS205
	January 2009

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.

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.

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.

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 DVS to communicate with a FloBoss using a Serial Peripheral Interface (SPI).

Accuracy

Two versions of the DVS transmitter are available:

ƒDVS205P with reference accuracy of 0.075% of the full span.

ƒDVS205E 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.

Coupling

Sensor Body

Coplanar

Flange

DVS205 Dual-Variable Sensor

D301569X012

Remote Automation Solutions

Website: www.EmersonProcess.com/Remote