VEGA BAR44 User Manual

Operating Instructions

VEGABAR 44 (HART®)

WE'VE GOT

ABILITY

OPERATE t

i ZERO SPAN

123 5678

VEGADIS 10

4...20mA

E12

123 5678

VEGADIS 10

4...20mA

E12

AM10

Contents

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

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

1 Product description

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

1.2 Self-monitoring ..................................................................... 4

1.3 Technical data ....................................................................... 5

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 ..................................................... 12

3.2 Connection diagram .......................................................... 13

3.3 Connection examples ........................................................ 14

Contents

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 VEGABAR 44 (HART®)

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

4 Setup

4.1 Indicating module ............................................................... 15

4.2 Setup with module

"Adjustment of the basic functions“ .................................. 15

4.3 Setup with module

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

4.4 Setup with adjustment software

VEGA Visual Operating (VVO) ......................................... 22

4.5 Setup with HART® handheld ............................................. 30

5 Diagnostics

5.1 Maintenance ....................................................................... 36

5.2 Failure rectification ............................................................. 36

6 Instrument modification

6.1 Exchange of adjustment modules .................................... 38

6.2 Exchange of electronics .................................................... 39

6.3 Exchange of the hygienic form seal on VEGABAR 44 .... 40

VEGABAR 44 (HART®) 3

1 Product description

Product description

1.1 Function and configuration

VEGABAR 44 process pressure transmitters are efficient instruments for process pressure measurement. As pressure sensor element, the dry ceramic-capacitive measuring cell CERTEC® is used. The process pressure causes a capacitance change within the measuring cell via the diaphragm. This capacitance change is detected by an ASIC (Application specific integrated circuit) and converted into a pressure-proportional signal by the integrated sensor electronics with microcontroller. Precise, high-resolution digital processing of measured data ensures excellent technical data.

The electronics module is powered by a separate VEGA signal conditioning instrument, a stabilised power supply unit or a PLC (active input). After the adjustment, a standardised 4 … 20 mA current signal is made available which can be displayed (e.g. in PLC systems) or further processed.

For carrying out adjustment, the following alternatives are available:

- adjustment module directly on VEGABAR

- adjustment module in external housing (VEGADIS 10)

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

- with HART® handheld

1.2 Self-monitoring

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

VEGABAR 40 with ceramic CERTEC® measuring cell offers the advantage of continuous self-monitoring. The measuring and reference capacitances of the measuring cell constitute a predefined ratio over the entire measuring range. Any deviation from these data is a reliable indicator of a malfunction of the measuring cell.

If errors or malfunctions are detected during these routines, the fault signal is triggered via the 4 … 20 mA output (current jump to

3.6 mA or 22 mA).

4 VEGABAR 44 (HART®)

Product description

1.3 T echnical data

Mechanical data

Materials, wetted parts

Process connection brass 2.041, stainless steel 1.4571 Diaphragm saphire-ceramic® (99.9 % Oxide ceramic) Seal, measuring cell Viton, EPDM, Hifluour, Kalrez

Materials, non-wetted parts

Housing high resistance plastic PBT (Polyester)

- optional Alu-die casting, powder-coated Ground terminal stainless steel 1.4305 Indicating module window Lexan

Weight

VEGABAR approx. 0.8 kg (depending on process fitting)

Adjustment and indicating elements

Adjustment of the basic functions 2 keys, 1 rotary-type switch Menu-driven adjustment with additional functions

- adjustment elements 4 keys

- indicating elements DOT-matrix display, 3 lines with 7 figures each Indicating module LC display with

- bar graph (20 segments)

- digital value (4 digits)

- tendency indicators for rising or falling values

VEGABAR 44 (HART®) 5

Product description

Nominal measuring ra nge

Gauge pressure resistance

Low pressu re resistance

Gauge pressure

0…0,1 bar / 0…10 kPa 15 bar / 1 500 kPa -0,2 bar / -20 kPa 0…0,2 bar / 0…20 kPa 20 bar / 2 000 kPa -0,4 bar / -40 kPa 0…0,4 bar / 0…40 kPa 30 bar / 3 000 kPa -0,8 bar / -80 kPa 0…1,0 bar / 0…100 kPa 35 bar / 3 500 kPa -1,0 bar / -100 kPa 0…2,5 bar / 0…250 kPa 50 bar / 5 000 kPa -1,0 bar / -100 kPa 0…5,0 bar / 0…500 kPa 65 bar / 6 500 kPa -1,0 bar / -100 kPa 0…10,0 bar / 0…1 000 kPa 90 bar / 9 000 kPa -1,0 bar / -100 kPa 0…20,0 bar / 0…2 000 kPa 130 bar / 13 000 kPa -1,0 bar / -100 k Pa 0…40,0 bar / 0…4 000 kPa 200 bar / 20 000 kPa -1,0 bar / -100 k Pa 0…60,0 bar / 0…6 000 kPa 300 bar / 30 000 kPa -1,0 bar / -100 k Pa

-0,05…+0,05 bar / -5…+5 kPa 15 bar / 1 500 kPa -0,2 bar / -20 kPa

-0,1…+0,1 bar / -10…+10 kPa 20 bar / 2 000 kPa -0,4 bar / -40 kPa

-0,2…+0,2 bar / -20…+20 kPa 30 bar / 3 000 kPa -0,8 bar / -80 kPa

-0,5…+0,5 bar / -50…+50 kPa 35 bar / 3 500 kPa -1,0 bar / -100 kPa

-1,0…0,0 bar / -100…0 kPa 35 bar / 3 500 kPa -1,0 bar / -100 kPa

-1,0…+1,5 bar / -100…+150 kPa 50 bar /5 000 kPa -1,0 bar / -100 k Pa

-1,0…+4,0 bar / -100…+400 kPa 65 bar / 6 500 kPa -1,0 bar / -100 kPa

-1,0…+10,0 bar / -100…+1 000 kPa 90 bar / 9 000 kPa -1,0 bar / -100 k Pa

-1,0…+20,0 bar / -100…+2 000 kPa 130 bar / 13 000 k Pa -1,0 bar / -100 kPa

-1,0 …+40,0 bar / -100…+4 000 kPa 200 bar / 20 000 kPa -1,0 bar / -100 kPa

-1,0…+60,0 bar / -100…+6 000 kPa 300 bar / 30 000 k Pa -1,0 bar / -100 kPa

Absolute pressure

0…1,0 bar / 0…100 kPa 35 bar / 3 500 kPa 0…2,5 bar / 0…250 kPa 50 bar / 5 000 kPa 0…5,0 bar / 0 …500 kPa 65 bar / 6 500 kPa 0…10,0 bar / 0…1 000 kPa 90 bar / 9 000 k Pa 0…20,0 bar / 0…2 000 kPa 130 bar / 13 000 kPa 0…40,0 bar / 0…4 000 kPa 200 bar / 20 000 kPa 0…60,0 bar / 0…6 000 kPa 300 bar / 30 000 kPa

6 VEGABAR 44 (HART®)

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 12 … 36 V DC Exd version (pressure-tight encapsulation) 18 … 36 V DC Permissible residual ripple U

- at 500 Hz … 10 kHz U Output signal

- range 3.8 … 20.5 mA

- resolution 6 µA Current limiting approx. 22 mA Fault signal 22 mA (3.6 mA) Integration time 0 … 10 s adjustable Rise time 85 ms (ti = 0 sec; 0 – 63 %) Connection cable 2-wire Max. permissible load dependent on the supply voltage

≤ 1 V

≤ 10 mV

(see load diagram)

1000

750

in Ohm

Ltotal

500 250

Load R

18 24 30 36

Voltage of the external energy UH in Volts

Display and adjustment circuit

For connection to VEGADIS 10 and/or indicating module Data transmission digital Connection cable 4-wire (standard cable) Max. cable length 25 m

Connection

Cable entry M20 x 1.5 (for cable-ø 5 … 10 mm) Screw terminals for conductor cross sections of up to 2.5 mm

Protective measures

Protection

IP 65 Protection class III Overvoltage category III

Use of a suitable seal for the cable in the PG is necessary for maintaining the housing protection. If the seal used does not fit the cable, it should be replaced by a suitable one.

VEGABAR 44 (HART®) 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 incl. hysteresis and repeatability

- 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

Influence of the ambient temperature

Average temperature coefficient of the zero signal

- 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 %/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

1) 3)

< 0.1 % per 2 years

Other actuating variables

Calibration position upright, diaphragm points downwards Influence of the mounting position < 0.2 mbar/20 Pa 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 measuring range.

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

Acc. to IEC 770, point 6.1.2 relating to the nominal measuring range.

8 VEGABAR 44 (HART®)

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, dependent on the seal material of the measuring cell

- Viton -20°C … +100°C

- EPDM -40°C … +100°C

- Kalrez 0°C … +100°C

1.4 Approvals and certificates

Approvals

- Ex Zone 2

- StEx Zone 10

- Ship approval

- CENELEC EEx ia IIC

- ATEX II 1G EEx ia IIC

- ATEX II 2G EExd ia IIC

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

CE conformity

VEGABAR 40 corresponds to 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 and NE 43.

VEGABAR 44 (HART®) 9

1.5 Dimensions

Housing without indicating module with indicating module

~76

Pg 13,5

Product description

Version plastic PBT

Ground connection

~76

Version Alu-die casting

M20x1,5

Ground connection

156

~76

Version Alu-die casting in EExd

Ground connection

½" NPT

10 VEGABAR 44 (HART®)

Product description

Process fitting

SW 60

34,5

ø 49,6

G 1½ A

ø 60

ø 49,6

SW 46

ø 90

ø 49,6

SW 46

ø 92

ø 49,6

SW 60

24,5

G 1½ A

ø 55

49,5

ø 49,6

SW 46

ø 78

ø 49,6

SW 46

ø 78

ø 64

ø 49,6

SW 60

SW 46

ø 49,6

1½ " NPT

ø 49,6

ø 64

ø 49,6

ø 65,8

ø 105

51,5

ø 49,6

SW 46

M44 x 1,25

BA/BB

ø 49,6

SW 46

ø 84

ø 49,6

SW 46

ø 100

20,5

51,5

ø 100

ø 165

VEGABAR 44 (HART®) 11

Mounting, Electrical connection

2 Mounting

2.1 Mounting instructions

VEGABAR can be mounted in any position. Cable entries must point downwards to avoid moisture ingress. For this purpose, the housing can be rotated by 330° in relation to the mounting part.

A seal, appropriate for connection, must be used for mounting. This seal is either supplied with VEGABAR or must be provided by the customer.

2.2 Compensation of the atmospheric pressure

On instruments for gauge pressure measurement, the atmospheric pressure is compensated via a breather facility integrated in the housing.

3 Electrical connection

3.1 Connection instructions

The electronics in VEGABAR 44 requires a supply voltage of 12 … 36 V DC. It is provided in two-wire technology, i.e. supply voltage and current signal are led to the terminals via the same two-wire connection cable.

This external energy is provided via a separate power supply unit:

- power supply unit, e.g. VEGASTAB 690

- processing unit with integrated DC current source (e.g. active PLC input)

- VEGAMET or VEGADIS 371

Make sure that the external energy source is reliably separated from the mains circuits acc. to DIN VDE 0106, part 101. The abovementioned VEGA instruments meet this requirement, and protection class II is therefore ensured.

The external energy source must supply a terminal voltage of at least 12 V to the transmitter. The actual terminal voltage on the transmitter depends on the following factors:

- output voltage of the external energy source under nominal load.

- electrical resistances of the connected instruments in the circuit (see Connected instruments, load resistor).

12 VEGABAR 44 (HART®)

Electrical connection

Note the following instructions for electrical connection:

- Connection must be made according to the specific installation standards (e.g. in Germany acc. to the VDE regulations).

- Terminal voltage must not exceed 36 V, to avoid damage to the electronics.

- Electrical connection must have a preventative measure against inadvertent polarity reversal.

- The wiring between VEGABAR and the power supply can be carried out using standard two-wire cable.

- Screened cable is recommended, if strong electromagnetic interference is to be expected. The shielding must be grounded at both sensor ends. Please note the installation regulations for mounting in Ex areas.

- If overvoltages are expected, we recommend the installation of VEGA overvoltage arresters.

- In the cable connection, a seal must be used which fits the cable.

- For instrument version EExd (pressuretight encapsulation) screened cable must be used for the instrument connection. Note the installation regulations.

3.2 Connection diagram

Note:

An ammeter for local control of the output current can be connected to terminals 1 and 3. This measurement can be made during operation without interrupting current on the supply cable.

VEGABAR with indicating module

Ammeter for local control

Function

ground

Plug connection

321

8765

Indicating module

VEGADIS 10 with indicating module

0 - 20 bar

–+

Supply voltage 12 … 36 V DC 4 … 20 mA

If screened cable is used, the screening should be grounded in the terminal compartment and the ground terminal on the outside of the housing must be grounded according to regulations. The terminals are connected to each other in the housing.

VEGABAR 44 (HART®) 13

0 - 20 bar

3.3 Connection examples

Supply via power supply unit

Processing is carried out using an indicating instrument.

Ammeter for local control

+ – –

1 2 3

VEGABAR terminals

Supply via a PLC with active input circuit

Processing is carried out via a PLC with active input circuit.

Ammeter for local control

analogue / digital indicating instrument

Power supply unit

–

Electrical connection

+ – –

1 2 3

VEGABAR terminals

PLC

–

PLC

14 VEGABAR 44 (HART®)

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