Emerson Process Management Dvs205 Users Manual HART Interface Module

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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.

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:

 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.

Coupling

Sensor Body

Coplanar

Flange

D301569X012

DVS205 Dual-Variable Sensor

2.5:DVS205

Specification Sheet Page 2

DVS205 Dual-Variable Sensor Specifications

DIFFERENTIAL PRESSURE INPUT

Range1: (100:1 rangeability allowed)

0 to 62.2 kPa (0 to 250" H2O).

0 to 248.8 kPa (0 to 1000" H2O).

Reference Accuracy:

±0.10% of span for turndowns from 1:1 to 10:1 of

URL (DVS205E).

±0.075% of span for turndowns from 1:1 to 10:1 of

URL (DVS205P).

For spans less than 10:1 turndown:

Accuracy = ±[0.025 + 0.005(URL/Span)]% of

span.

Stability: ±0.125% of URL for five years for ±50°F

(28°C) ambient temperature changes, and up to

1000 psi (68,9 bar) line pressure.

Ambient Temperature Effect per 50°F (28°C):

±(0.025% URL + 0.125% of span) spans from 1:1

to 30:1.

±(0.035% URL + 0.175% of span) spans from

30:1 to 100:1.

Static Pressure Effects:

Zero error = ±0.05% of URL per 1000 psi (68,9

bar).

Span error = ±0.20% of DP Reading per 1000 psi

(68,9 bar).

Over-Pressure Limit: 3,626 psi (250 bar) applied

on either or both sides without damage to the

sensor.

Burst Pressure Limit: 10,065 psi (694 bar).

STATIC PRESSURE INPUT

Range: Either Absolute or Gauge (100:1

rangeability allowed):

0 to 5516 kPa (0 to 800 psia/psig).

0 to 25,000 kPa (0 to 3626 psia/psig).

Reference Accuracy:

±0.10% of span for turndowns from 1:1 to 10:1 of

URL (DVS205E).

±0.075% of span for turndowns from 1:1 to 10:1 of

URL (DVS205P).

For spans less than 10:1 turndown:

Accuracy = ±[0.03 + 0.0075(URL/Span)]% of

span.

STATIC PRESSURE INPUT (continued)

Stability: ±0.125% of URL for five years for ±50°F

(28°C) ambient temperature changes.

Ambient Temperature Effect per 50°F (28°C):

±(0.05% URL + 0.125% of span) spans from 1:1

to 30:1.

±(0.06% URL + 0.175% of span) spans from 30:1

to 100:1.

Over-Pressure Limit: Same as URL.

POWER

Input at 0 to 75°C (32 to 167°F): 8 to 30 V dc, 10

mW average.

Input at –40 to 0°C (–40 to 32°F): 8.5 to 30 V dc,

10 mW average.

OUTPUT

Serial Peripheral Interface (SPI).

WEIGHT

3.0 kg (6.7 lb).

ENVIRONMENTAL

Same as the FloBoss unit in which it is installed.

Process Seals per ANSI/ISA 12.27.01

Meets requirements for a Single Seal device as

defined by ANSI/ISA 12.27.01. Installation must

adhere to the following process temperature limits.

Process Temperature (at transmitter isolator flange):

Standard Silicone Fill Sensor: -40 to 100°C (-40 to

212°F).

Inert Fill Sensor: -18 to 85°C (0 to 185°F).

Note: Process temperatures above 85°C (185°F)

require you to lower the product’s maximum ambient

temperature rating by a 1.5:1 ratio. To determine the

adjusted maximum temperature rating, perform the

following calculation:

Adjusted max Tamb = Product Max Tamb - [(Actual

Process Tamb - 85°C (185°F)) * 1.5].

Example:

Adjusted Max Tamb = 75°C – [(95°C – 85°C) * 1.5]

= 60°C.

DIMENSIONS

147 mm H by 163 mm W by 84 mm D (5.8 in. H by

6.4 in. W by 3.3 in. D).

VIBRATION EFFECT

Sensor outputs will not shift more than +0.1% of

URL per g from 5 to 2000 Hz in any axis when

tested per IEC 770, Section 6.2.14.

1. Consult factory for special ranges and materials which may be available. For example: 0 to 6.22 kPa (0 to 25" H2O) at ±0.10% reference accuracy.

2.5:DVS205

Specification Sheet Page 3

DVS205 Dual-Variable Sensor Specifications (continued)

CONSTRUCTION

Standard: Transducer is all stainless steel

construction with silicone fill fluid, 316L

diaphragms and glass-filled PTFE o-rings.

Coupling is A360 Aluminum with urethane coating.

Optional: Transducer includes Hastelloy C-276

wetted parts (construction is NACE compliant per

MR0103 and ISO15156/MR0175), inert fill fluid.

Coupling is available in 316 stainless steel

(CF8M).

MOUNTING

Factory-installed on enclosure of FB103, FB107E,

and FB503. See respective specification sheet for

unit mounting options.

CONNECTIONS

Process: 1/4-18 NPT on 2-1/8 inch centers (on

coplanar flange).

APPROVALS

Same as the FloBoss unit in which it is installed.

2.5:DVS205

Specification Sheet Page 4

Bristol, Inc., Bristol Canada, BBI SA de CV and Emerson Process Management Ltd, Remote Automation Solutions division (UK), are wholly

owned subsidiaries of Emerson Electric Co. doing business as Remote Automation Solutions (“RAS”), a division of Emerson Process

Management. FloBoss, ROCLINK, Bristol, Bristol Babcock, ControlWave, TeleFlow and Helicoid are trademarks of RAS. AMS, PlantWeb and

the PlantWeb logo are marks of Emerson Electric Co. The Emerson logo is a trademark and service mark of the Emerson Electric Co. All

other marks are property of their respective owners.

The contents of this publication are presented for informational purposes only. While every effort has been made to ensure informational

accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein

or their use or applicability. RAS reserves the right to modify or improve the designs or specifications of such products at any time without

notice. All sales are governed by RAS’ terms and conditions which are available upon request. RAS does not assume responsibility for the

selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any RAS product remains solely

with the purchaser and end-user.

Emerson Process Management

Remote Automation Solutions

Marshalltown, IA 50158 U.S.A.

Houston, TX 77041 U.S.A

Pickering, North Yorkshire UK Y018 7JA

© 2008-2009 Remote Automation Solutions, division of Emerson Process Management. All rights reserved.