VEGA D95 User Manual

Operating Instructions

Hydrostatic pressure transmitters

PROF I

D95 (Profibus PA)

PROCESS FIELD BUS

BUS

0 - 20 bar

Level and Pressure

Safety information, note Ex area

Safety information

Please read this manual carefully, and also take note of country-specific installation standards (e.g. the VDE regulations in Germany) as well as all prevailing safety regulations and accident prevention rules. For safety and warranty reasons, any internal work on the instruments, apart from that involved in normal installation and electrical connection, must be carried out only by qualified VEGA personnel.

2 Pressure transmitter D95 (Profibus PA)

Note Ex area

Please note the attached safety instructions containing important information on installation and operation in Ex areas. These safety instructions are part of the operating instructions and come with the Ex approved instruments.

Contents

Safety information ........................................................................ 2

Note Ex area ................................................................................ 2

1 Product description

1.1 Function and configuration .................................................. 4

1.2 Types and versions ............................................................. 5

1.3 Technical data ....................................................................... 6

1.4 Approvals and certificates .................................................. 9

1.5 Dimensions ......................................................................... 10

2 Mounting

2.1 Mounting instructions ......................................................... 12

2.2 Compensation of the atmospheric pressure ................... 12

3 Electrical connection

3.1 Connection instructions ..................................................... 13

3.2 Wiring plan .......................................................................... 14

4 Setup

4.1 Setting the Profibus PA address ...................................... 15

4.2 Setup with module

"Menu-driven adjustment with additional functions" ........ 17

4.3 Setup with adjustment software

VEGA Visual Operating (VVO) ......................................... 23

5 Diagnostics

5.1 Maintenance ....................................................................... 31

5.2 Failure rectification ............................................................. 31

6 Instrument modification

6.1 Exchange of adjustment modules

in the processing unit ........................................................ 32

Pressure transmitter D95 (Profibus PA) 3

1 Product description

Product description

1.1 Function and configuration

D95 pressure transmitters are efficient instruments for hydrostatic level measurement. A dry metallic-capacitive measuring cell is used as the pressure sensor element. The hydrostatic pressure effects a capacitance change on the Duratherm 600 diaphragm. This capacitance change is detected by an ASIC (Application Specific Integrated Circuit) and converted into a pressure-proportional signal by the integrated electronic module with microcontroller. Precise, high-resolution digital processing of measurement data ensures excellent technical data.

The electronics module is powered by a Profibus DP - PA segment coupler. The measured pressure is transmitted as a digital signal via the bus cable to the processing system and can be displayed on the indicating module.

To improve reliability, the functionality of important electronic components is continuously checked, and internal parameters such as sensor value, temperature and operating voltage are closely monitored.

The pressure transmitter D95 consists of two parts, the transmitter and the processing unit. Both parts are connected via a threewire screened cable (depending on the version, with or without breather capillaries). The processing unit contains the adjustment elements (address switch, keys and LCD) and the terminals for the Profibus PA cable.

Transmitter

Processing unit

0 - 20 bar

Profibus PA cable

Profibus PA version

The instrument profile of the pressure transmitter D95 is according to the profile specification version 3.0. The instrument master file (GSD) is supplied with the pressure transmitter D95. In addition, the GSD is available as a download file from the VEGA homepage (www.vega.com).

Adjustment and indication

The following adjustment versions are available:

- menu-driven adjustment (4 keys and DOTMatrix) in the processing unit

- via PC with the adjustment software VEGA Visual Operating (VVO)

- optional, processing unit equipped with an indicating module.

4 Pressure transmitter D95 (Profibus PA)

Product description

1.2 Types and versions

Housing with terminals

Nominal meas. range (gauge pressure) Gauge press. resistance Low pressure resistance

0…0.1 bar / 0…10 k Pa 2.5 bar / 250 kPa -0.1 bar / -10 kPa 0…0.2 bar / 0…20 k Pa 5 bar / 500 kP a -0.2 bar / -20 kPa 0…0.4 bar / 0…40 kPa 10 bar / 1 000 kPa -0.4 bar / -40 kPa 0…1.0 bar / 0…100 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 0…2.5 bar / 0…250 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 0…5.0 bar / 0…500 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 0…10.0 bar / 0…1 000 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 0…20.0 bar / 0…2 000 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

-0.5…+0.5 bar / -50…+50 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

-1.0…0.0 bar / -100…0 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

-1.0…+1.5 bar / -100…+150 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

-1.0…+4.0 bar / -100…+400 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

-1.0…+10.0 bar / -100…+1 000 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

-1.0…+20.0 bar / -100…+2 000 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa

Cable outlet axial

Cable outlet lateral Plug connection

lateral

Pressure transmitter D95 (Profibus PA) 5

Product description

1.3 Technical data

Mechanical data

Transmitter materials, wetted parts

Process connection stainless steel 1.4571 Diaphragm Duratherm 600

Transmitter materials, non-wetted parts

Transmitter housing - Alu die casting, powder-coated

Cooling body (option) Alu eloxated Heat shield (option) Alu eloxated

Materials of the processing unit

Housing high resistance plastic PBT (Polyester) Ground terminal stainless steel 1.4305 Window of the indication module Lexan

Weight

Transmitter approx. 1.6 kg Processing unit approx. 480 g

Adjustment and indicating elements (in the processing unit)

Menu-driven adjustment with additional functions

- adjustment elements 4 keys

- indicating elements DOT-matrix display, 3 lines with 7 digits each Version without adjustment module

- adjustment element 8-pole mini coding switch for adjustment of the

Indication module LC-display with

- stainless steel 1.4571

bus address

- bar graph (20 segments)

- digital value (4 digits)

- tendency indicators for rising or falling values

6 Pressure transmitter D95 (Profibus PA)

Product description

Electrical data

Adjustment ranges

Zero adjustable from -20 … +95 % of nominal range Span adjustable from 3.3 … 120 % of nominal range

Supply and signal circuit

Supply voltage 9 … 32 V DC

Current consumption 10 mA ± 1 mA Integration time 0 … 50 s Rise time 70 ms (ti = 0 sec; 0 – 63 %)

Connection cable, processing unit – Profibus PA

Cable entry M20 x 1.5 (for cable ø 5 … 9 mm) Screw terminals for conductor cross-sections of up to 2.5 mm Recommended bus cable types - SINEC 6XV 830-5AH10 (Siemens AG)

Connection cable, processing unit – Transmitter

Cable entry M20 x 1.5 (for cable ø 5 … 9 mm) Screw terminals for conductor cross-sections of up to 2.5 mm Transmitter

- with fixed cable outlet 3-wire screened, with breather capillaries

- with cable connection terminals 3-wire screened

Protective measures

Protection

- transmitter with fixed cable outlet IP 68

- transmitter with terminal housing IP 66/IP 67

- transmitter with plug connection IP 66/IP 67

- processing unit IP 66/IP 67 Protection class III Overvoltage category III

(delivered by the segment coupler)

- SINEC L2 6XV1 830-35H10 (Siemens AG)

- 3079 A (Belden)

The use of a properly fitting cable seal in the cable connection is necessary for maintaining the housing protection. If the seal used does not fit the cable, it should be replaced by a suitable one.

Pressure transmitter D95 (Profibus PA) 7

Product description

Accuracy (similar to DIN 16 086, DIN V 19 259 - 1 and IEC 770)

Deviation

Reference conditions (acc. to IEC 770)

- temperature 15°C … 35°C

- rel. humidity 45 % … 75 %

- air pressure 860 mbar … 1060 mbar/86 kPa … 106 kPa Determination of characteristics limit point adjustment acc. to DIN 16 086 Characteristics linear Deviation in characteristics

- Turn Down 1 : 1 < 0.25 % with accuracy class 0.25

- Turn Down up to 1 : 5 typ. < 0.3 % with accuracy class 0.25

- Turn Down up to 1 : 10 typ. < 0.4 % with accuracy class 0.25

Hysteresis Repeatability

Influence of the ambient temperature

Average temperature coefficient of the zero signal

1) 2)

- Turn Down 1 : 1 < 0.15 %/10 K with accuracy class 0.25

- Turn Down up to 1 : 5 typ. < 0.225 %/10 K with accuracy class 0.25

- Turn Down up to 1 : 10 typ. < 0.3 %/10 K with accuracy class 0.25

< 0.1 % with accuracy class 0.1

typ. < 0.1 % with accuracy class 0.1

typ. < 0.2 % with accuracy class 0.1 < 0.05 % < 0.05 %

< 0.05 %/10 K with accuracy class 0.1

typ. < 0.075 %/10 K with accuracy class 0.1

typ. < 0.1 %/10 K with accuracy class 0.1

Long-term stability

Long-term drift of the zero signal

< 0.25 % per 2 years

Other actuating variables

Calibration position upright, diaphragm points downwards Influence of the installation position < 5 mbar Vibration resistance mechanical vibrations with 4 g and

5 … 100 Hz, tested acc. to the regulations of German Lloyd GL-characteristics 2

Relating to the nominal range.

In compensated temperature range of 0°C … +80°C, reference temperature 20°C.

Acc. to IEC 770, item 6.1.2 relating to the nominal range.

8 Pressure transmitter D95 (Profibus PA)

Product description

Operating conditions

Ambient conditions

Ambient temperature -40°C … +85°C

- with indicating module -20°C … +70°C Storage and transport temperature -40°C … +85°C Product temperature -40°C … +100°C

- with cooling body -40°C … +150°C

- with cooling body and additional heat shield -40°C … +200°C

1.4 Approvals and certificates

Approvals

- Ex Zone 2

- CENELEC EEx ia IIC

- ATEX II 1G EEx ia IIC

If the use of approved instruments is required for certain applications, the appropriate official documents (test reports, test certificates and conformity certificates) must be observed. These are supplied with the respective instrument.

CE conformity

The pressure transmitter D95 meets the requirements of EMC (89/336/EWG) and NSR (73/23/EWG). Conformity has been judged acc. to the following standards: EMC Emission EN 50 081 - 1: 1992

NSR EN 61 010 - 1: 1993

Susceptibility EN 50 082 - 2: 1995

NAMUR regulations

Full compliance with the NAMUR regulations NE 21, May 1993.

Pressure transmitter D95 (Profibus PA) 9

1.5 Dimensions

Transmitter housing

ø 76

Product description

ø 41,6

Processing unit

with display module

38 82

M20x1,5

with protective cover

135

118

108

72100

139

130

10 Pressure transmitter D95 (Profibus PA)

Product description

Process connections

ø 41,6

SW 60

G 1½ A

ø 55

ø 41,6

ø 78

ø 41,6

ø 90

ø 41,6

SW 60

1½ " NPT

ø 41,6

ø 64

ø 41,6

SW 46

92,5

M44 x 1,25

ø 41,6

ø 84

ø 41,6

ø 78

ø 92

ø 65,8

ø 105

ø 100

for applications up to 150°C up to 200°C

48,5

ø 68

ø 120

Pressure transmitter D95 (Profibus PA) 11

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