VEGA D81 User Manual

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Operating Instructions

Hydrostatic pressure transmitter D81 METEC

Contents

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

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

1 Product description .................................................................. 4

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

1.2 Electronics version without adjustment .............................. 5

1.3 Electronics version with integrated adjustment

in connection housing .......................................................... 7

1.4 Electronics for connection to VEGADIS 12 ........................ 8

1.5 Technical data ....................................................................... 9

1.6 Approvals and certificates ................................................ 13

1.7 Dimensions ......................................................................... 14

2 Mounting ................................................................................... 18

2.1 Mounting instructions ......................................................... 18

2.2 Compensation of the atmospheric pressure ................... 18

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 Pressure transmitter D81 METEC

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

3 Electrical connection .............................................................. 19

3.1 Connection instructions ..................................................... 19

3.2 Terminal assignment .......................................................... 20

3.3 Connection to external connection housing

VEGABOX 01 ..................................................................... 21

3.4 Connection examples ........................................................ 22

4 Setup .......................................................................................... 23

4.1 Adjustment media .............................................................. 23

4.2 Sensor without adjustment ................................................ 24

4.3 Sensor with adjustment insert, adjustment

in the sensor ....................................................................... 24

4.4 Setup with HART® handheld ............................................. 26

4.5 Adjustment with PC directly on the sensor ...................... 32

6 Diagnosis .................................................................................. 40

7 In strum ent mo dific ation ........................................................ 4 1

7.1 Retrofitting the adjustment insert ...................................... 41

Pressure transmitter D81 METEC

1 Product description

Product description

1.1 Function and configuration

Pressure transmitter D81 METEC® is a powerful instrument for hydrostatic level measurement. A METEC® measuring cell is used as the measuring device. This cell consists of a ceramic-capacitive sensor and a specially adapted isolating diaphragm.

Pressure transmitter D81 METEC

Measuring cell: METEC

Diaphragm: flush, Hastelloy C276/1.4435 Series: flange version Standard application: all types of level measurements, best suited for food processing and pharmaceutical industries.

The hydrostatic pressure of the product causes a diaphragm movement in the ceramic-capacitive CERTEC® measuring cell via a temperature-compensated isolating system consisting of stainless steel body, Hastelloy diaphragm and medical white oil. This capacitance change is detected by an ASIC (Application Specific Integrated Circuit) and converted into a pressure-proportional signal by the integrated electronics module with microcontroller. Precise, high-resolution digital processing of measurement data ensures excellent technical data.

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.

Output signal

The output signal is transferred as a digital or analogue signal from the pressure transmitter to the signal conditioning instrument:

• analogue output signal

- unstandardised (in conjunction with VEGA signal conditioning instrument)

- 4 … 20 mA standardised

• digital output signal (VBUS) for connection of a digital VEGA signal conditioning instrument (VEGAMET 514V, 515V or VEGALOG

571)

CERTEC

4 Pressure transmitter D81 METEC

Product description

1.2 Electronics version without adjustment

Electronics version A: Pressure transmitter for connection to VEGA signal conditioning instruments

e.g. IP 66

VEGABOX 01

VEGAMET

VEGALOG

Zum Anschluss an

For connection to

Druckmessumformer mit

pressure transmitters with

analogem Ausgangssignal

analog output

12310

TRANSMITTER

VEGABOX 01

11 12

VEGAMET

VEGALOG

e.g. IP 67

Electronics version B: Pressure transmitter for connection to VEGA signal conditioning instruments (digital transmission VBUS)

e.g. IP 66

e.g. IP 67

VEGABOX 01

Zum Anschluss an

For connection to

Druckmessumformer mit

pressure transmitters with

analogem Ausgangssignal

analog output

12310

11 12

TRANSMITTER

VEGABOX 01

VEGAMET

VEGALOG

Pressure transmitter D81 METEC

Electronics version I: Pressure transmitter 4 … 20 mA, HART®, VVO

4-20mA

51234

4...20mA 12V...36V DC

Klemmeinsatz

terminal

e.g. IP 66

VEGABOX 01

Zum Anschluss an

For connection to

Druckmessumformer mit

pressure transmitters with

analogem Ausgangssignal

analog output

12310

TRANSMITTER

VEGABOX 01

11 12

e.g. IP 67

HART® handheld

4-20mA

4...20mA

51234

12V...36V DC

Klemmeinsatz

terminal

VVO

250 Ω

Product description

PLC/DCS

6 Pressure transmitter D81 METEC

Product description

1.3 Electronics version with integrated adjustment in connection housing

Electronics version K: Pressure transmitter 4 … 20 mA, HART®, VVO adjustable

43215

4...20mA 12V...36V DC

Bedieneinsatz

operating unit

PLC/DCS

e.g. IP 66

e.g. IP 67

4...20mA 12V...36V DC

Bedieneinsatz

HART® handheld

VEGABOX 01

Zum Anschluss an

For connection to

Druckmessumformer mit

pressure transmitters with

43215

operating unit

analogem Ausgangssignal

analog output

12310

TRANSMITTER

VEGABOX 01

11 12

250 Ω

PLC/DCS

250 Ω

VVO

Pressure transmitter D81 METEC

1.4 Electronics for connection to VEGADIS 12

VEGADIS 12

DISPLAY

+ -

TRANSMITTER

5876321101112

OPERATE

POINT

DISPLAYTRANSMITTER

END

ZERO

OPERATE

POINT

END

ZERO

VEGADIS 12

DISPLAY

+ -

TRANSMITTER

5876321101112

OPERATE

POINT

DISPLAYTRANSMITTER

END

ZERO

OPERATE

POINT

END

ZERO

51234

VEGADIS 12

Zum Anschluß an

For connection to

12V...36V DC

terminal

Klemmeinsatz

51234

VEGADIS 12

Zum Anschluß an

For connection to

12V...36V DC

terminal

Klemmeinsatz

Electronics version L: Pressure transmitter 4 … 20 mA, HART®, VVO

e.g. IP 66

e.g. IP 67

VEGADIS 12

Product description

PLC/ DCS

250 Ω

PLC/ DCS

250 Ω

VVO

HART® handheld

8 Pressure transmitter D81 METEC

Product description

1.5 Technical data

Nominal measuring range Gauge pr. resistance Low pr. resistance

Gauge pressure

0…0,1 bar / 0…10 kPa 15 bar / 1 500 kPa -1,0 bar / -100 kPa 0…0,2 bar / 0…20 kPa 20 bar / 2 000 kPa -1,0 bar / -100 kPa 0…0,4 bar / 0…40 kPa 30 bar / 3 000 kPa -1,0 bar / -100 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 50 bar / 5 000 kPa -1,0 bar / -100 kPa 0…10,0 bar / 0…1 000 kPa 50 bar / 5 000 kPa -1,0 bar / -100 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 kPa

-1,0…+4,0 bar / -100…+400 kPa 50 bar / 5 000 kPa -1,0 bar / -100 kPa

-1,0…+10,0 bar / -100…+1 000 k Pa 50 bar / 5 000 kPa -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 50 bar / 5 000 kPa 0…10,0 bar / 0…1 000 kPa 50 bar / 5 000 kPa

Mechanical data

Materials, wetted parts

Process connection stainless steel 1.4435 Diaphragm Hastelloy C276

Materials, non-wetted parts

Housing Alu (seawater resistant) Pe-powder coated,

External connection housing high resistance plastic PBT (Polyester) Ground terminal stainless steel 1.4305 Window of the display module safety glass

Weights

Basic weight without housing approx. 1.6 kg External housing approx. 400 g

Adjustment and indicating elements

Pressure transmitter

- terminal insert without adjustment elements

- adjustment insert 2 keys, 1 rotary switch

Pressure transmitter D81 METEC

stainless steel 1.4571

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 (analogue transmission, 4 … 20 mA), electronics version A, C, I and K

Supply voltage 12 … 36 V DC permissible residual ripple U

- at 100 Hz … 10 kHz U Output signal

- terminal insert - analogue transmission (not standardised)

- adjustment insert 4 … 20 mA (adjustable) Current limitation approx. 22 mA Fault signal 22 mA (3.6 mA) Integration time 0 … 10 s Rise time 70 ms (ti = 0 sec; 0 … 63 %) Max. permissible load see load diagram:

≤ 1 V

≤ 10 mV

- 4 … 20 mA

Load in Ω

900

600

300

Supply voltage

18 24 30 36

10 Pressure transmitter D81 METEC

in V

Product description

Supply and signal circuit (analogue transmission, 4 … 20 mA), additional data for electronics version L

Supply voltage for pressure transmitters in conjunction with VEGADIS 12

- without display 12 … 36 V DC

- with display 17 … 36 V DC Max. input current 150 mA Current signal range 3.5 … 22 mA Max. permissible load see load diagram:

Load diagram with display

Load in Ω

700

500

300

100

24 30 36

Supply voltage in V

Supply and signal circuit on VEGA signal conditioning instruments (digital signal transmission VBUS), additional data for electronics version B

Supply voltage 25 … 36 V DC, from VEGAMET (VBUS) or

from VEGALOG 571 with EV input card Data transmission digital (VBUS) Connection cable 2-wire screened Cable length max. 1000 m

Integrated overvoltage protection (option)

Nominal response DC voltage

- protective diode 40 V

- gas separator 650 V Nominal leakage current

- gas separator 20 kA

Connection cables

Cable entry

- housing 2 x M20x1.5 (for cable ø 5…9mm or 9…12mm)

- external connection housing 2 x M20x1.5 (for cable ø 5…9mm or 9…12mm) Screw terminals

- sensor for wire cross-sections up to 2.5 mm

- external connection housing for wire cross-sections up to 2.5 mm

Pressure transmitter D81 METEC

Product description

Protective measures

Protection IP 66, IP 67, IP 68 VEGABOX 01 IP 66 and IP 67 Protection class III Overvoltage category III

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

Deviation

Reference conditions (acc. to IEC 770)

- temperature 15°C … 30°C

- moisture 45 % … 75 %

- air pressure 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 stability of the zero signal

< 0.1 % 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

Maintaining the housing protection IP 66 or IP 67 requires the use of a seal that correctly fits the cable in the cable entry. If the supplied seal does not fit, a suitable seal must be provided by the customer.

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

Acc. to IEC 770, point 6.3.2 relating to the nominal range

12 Pressure transmitter D81 METEC

Product description

Operating conditions

Ambient conditions

Ambient temperature -40°C … +85°C

- with indicating module -10°C … +60°C Storage and transport temperature -50°C … +100°C Product temperature

- METEC® - Standard -12°C … +150°C (1 h up to 160°C)

- METEC - HT -12°C … + 200°C

1.6 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

D81 METEC® pressure transmitters meet the protective regulations 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: 1993

Susceptibility EN 50 082 - 2: 1995

NAMUR regulations

Full compliance with the NAMUR regulations NE21 and NE 43.

Pressure transmitter D81 METEC

1.7 Dimensions

Housing

ø 76

Product description

ø 75

ø 41,6

14 Pressure transmitter D81 METEC

Product description

Process connections D81 METEC

ø 41,6

154

4kt SW 46

G 1½ A

ø 55

ø 41,6

154

ø 64

154

4kt SW 46

154

ø 41,6

1½ " NPT

ø 41,6

ø 84

ø 41,6

110

154

ø 78

154

ø 41,6

154

ø 78

ø 41,6

105

ø 90

ø 41,6

154

ø 92

ø 41,6

154

ø 65,8

ø 105

Pressure transmitter D81 METEC

ø 41,6

182

ø 84

G 1½ A

ø 55

4kt SW 46

GG/HT

Pressure transmitter accessory Welded socket

G 1½

ø 65

Product description

Rd 65 x

ø 79,6

ø 72/6xM6

ø 79,6

Rd 78 x

ø 50

ø 55

21,5

ø 48,6

ø 51,6

ø 84/4xM10

ø 125

Rd 65 x

ø 38

ø 43

ø 82/4xM8

ø 165

16 Pressure transmitter D81 METEC

Product description

VEGABOX 01

38 72

M20x1,5

with protective cover

135

118

108

139

72100

130

Pressure transmitter D81 METEC

2 Mounting

Mounting

2.1 Mounting instructions

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

An appropriate seal must be used for mounting. This seal is either supplied with the pressure transmitter 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 the breather facility integrated in the housing.

Pressure transmitter with housing

- via an integrated breather facility (PTFE

insert 1)), protection IP 66

- via the capillaries of a special cable con-

nected to the terminals, protection IP 67

Pressure transmitter with direct cable outlet

- via the capillaries of the connected special

cable, protection IP 68

We recommend leading the special cable into the external connection housing VEGABOX 01 (accessory) and carrying out the pressure compensation via the integrated breather facility there.

External connection housing

Observe the following instructions:

- as a rule, there must be the same atmos-

pheric pressure on the breather facility as on the vessel

- the pressure compensation must be done

in a dry environment

- with vertical wall mounting, cable entries

must point downward to avoid moisture ingress and buildup on the breather facility.

air permeable and moisture blocking

18 Pressure transmitter D81 METEC

Electrical connection

3 Electrical connection

3.1 Connection instructions

The electronics in the pressure transmitter requires a supply voltage of 12 … 36 V DC. It is designed in two-wire technology, i.e. the supply voltage and the measuring signal are led via the same two-wire cable to the terminals.

This external energy is provided via a separate power supply unit, e.g.:

- power supply unit VEGASTAB 690

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

- VEGAMET, VEGALOG 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 devices meet this requirement and protection class III is therefore guaranteed.

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

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

- electrical resistance of the connected instruments in the circuit (see connected instruments, load resistance).

Note the following instructions for electrical connection:

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

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

- The electrical connection must have a protective measure against polarity reversal.

- Connection of Ex sensors only by qualified personnel.

- The wiring between pressure transmitter and power supply can be made with standard two-wire cable.

- If strong electromagnetic interference is expected, screened cable is recommended. This screening must be done on both ends. Note the installation regulations for use in Ex areas.

- In case of overvoltages, we recommend the use of pressure transmitters with integrated overvoltage protection or the installation of VEGA overvoltage arresters.

- In the cable entry, a seal correctly fitting the cable should be used.

Safety information for Ex applications

As a rule, do all connecting work in the complete absence of line voltage. Always switch off the power supply before you carry out connecting work on the sensors. Protect yourself and the instruments.

Qualified personnel

Instruments used in Ex areas must be installed only by qualified personnel. The qualified personnel must observe and understand the mounting regulations and the supplied type approval certificates and conformity certificates.

If an instrument is used in hazardous areas, the respective regulations, conformity certificates and type approvals of the sensors, separators or safety barriers must be noted (e.g. DIN VDE 0165).

Pressure transmitter D81 METEC

Electrical connection

Sensors used in Ex areas must be connected only to intrinsically safe circuits. The permissible electrical values are stated in the conformity certificate or the type approval certificate.

Intrinsically safe circuits with more than one active instrument (instruments delivering electrical energy) are not allowed. Please note the special installation regulations (DIN VDE 0165).

Certain pressure transmitters are provided with a warning label informing of measures to be taken to avoid the danger of electrostatic discharge. Note the content of the warning label.

3.2 Terminal assignment

Direct cable outlet

Screen

Breather capillaries

Suspension cable

For supply or to the process-

ing system (4 … 20 mA,

12 … 36 V DC or VBUS)

(only for adjustment insert in external housing)

Electronics version B

Digital output signal for connection to a digital VEGA signal conditioning instrument (VBUS)

Zum Anschluss an

For connection to

VBUS-Auswertgeräte

VBUS-signal conditioning instruments

1234

Klemmeinsatz

terminal

BUS

Field Communication

Internal connection

Supply and digital measuring signal from and to the digital VEGAMET 514V and 515V signal condition-

–

ing instrument or VEGALOG 571

processing system

Electronics version I

4 … 20 mA output signal with remote parameter setting through PC and HART® handheld

4-20mA

4...20mA 12V...36V DC

Klemmeinsatz

terminal

51234

–

Power supply

12 … 36 V DC

Electronics version K

Electronics version A

for connection to VEGA signal conditioning instruments

Zum Anschluss an

For connection to

VEGA-Auswertgeräte

VEGA-signal conditioning instruments

51234

Klemmeinsatz

terminal

20 Pressure transmitter D81 METEC

–

Supply or processing from the VEGAMET

–

signal conditioning instrument

12 … 36 V DC

4 … 20 mA output signal with integrated adjustment and remote parameter setting through PC and HART® handheld

4...20mA 12V...36V DC

Bedieneinsatz

operating unit

43215

–

Power supply 12 … 36 V DC

Electrical connection

Electronics version L

4 … 20 mA output signal with adjustability via the external connection housing VEGADIS 12, as well as remote parameter adjustability via PC and HART® handheld

Zum Anschluss an

For connection to

VEGADIS 12

51234

12V...36V DC

Klemmeinsatz

terminal

Connection housing VEGADIS 12

3.3 Connection to external connection housing VEGABO X 01

Adjustment insert in external connection housing

Pressure transmitter with direct cable outlet

Breather capillaries

Suspension cable

–

Screen

Pressure transmitter D81 METEC

Zum Anschluss an

For connection to

Druckmessumformer mit

pressure transmitters with

analogem Ausgangssignal

analog output

231011 12

TRANSMITTER

VEGABOX 01

4... 20mA

For supply or to processing system (4 … 20 mA, 12 … 36 V DC)

–

Control instrument (4 … 20 mA measurement)

–

Electrical connection

3.4 Connection examples

Note:

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

The following connection examples are valid for direct connection to the terminals of the pressure transmitter. When using the external connection housing, the connection is made to the respective terminals of the housing.

Supply through a power supply unit

Processing is done by an indicating instrument.

Ammeter for local control

+ - -

1 2 3

Pressure transmitter terminals

analogue / digital indicating instrument

External energy source

4 … 20 mA

Supply through a VEGA signal conditioning instrument

Standard wiring for non-standardised output.

Ammeter for local control

+ - -

1 2 3

Pressure transmitter terminals

Analogue transmission, not standardised

0/4 … 20 mA

DISBUS

Supply through a PLC with active input circuit

Processing is done by the PLC.

Ammeter for local control

+ - -

1 2 3

Pressure transmitter terminals

4 … 20 mA

PLC

22 Pressure transmitter D81 METEC

Setup

4 Setup

4.1 Adjustment media

The hydrostatic pressure transmitters come with or without adjustment capability.

After connection to the supply voltage, the electronics carries out a self-test (approx. 2 secs.) and the current in this signal circuit (sensors with analogue output signal) takes on a value of > 21.6 mA.

Sensors without adjustment (electronics version A and C)

Sensors with electronics version A deliver a pressure-proportional current as measured value and are not adjustable. All settings such as adjustment, density correction etc. are carried out via the signal conditioning instrument. The sensors with electronics version C come preadjusted according to the measuring range of the sensor (factory setting). In unpressurised condition, they consume a current of 4 mA. With a pressure at the measuring range final value, they consume a current of 20 mA.

Sensors with adjustment insert in the sensor (electronics version K)

The adjustment insert with selection switch allows:

- zero adjustment "z" = empty adjustment

- span adjustment "s" = full adjustment

- adjustment of an integration time (time) "ti"

Adjustment in external connection housing VEGADIS 12 (electronics version L)

The adjustment insert with selection switch (VEGADIS 12 with display) allows:

- zero adjustment

- span adjustment

- adjustment of an integration time (time)

- adjustment of a value for zero point (empty)

- adjustment of a value for span (full)

- adjustment of the decimal point of the displayed value

Adjustment with HART® handheld (electronics version I, K and L)

The hydrostatic pressure transmitters with electronics version I, K and L can be adjusted with the HART® handheld like other HART® compatible instruments. A manufacturer-specific DD (Device Description) is not necessary. The sensors work with the HART standard menus.

Adjustment of VEGA signal conditioning instrument VEGAMET (electronics version A and B)

Electronics version A delivers a non-standardised output signal to a VEGAMET with analogue input.

Electronics version B transfers the measured value digitally (VBUS) to a digital VEGAMET (514V, 515V, 614V).

The signal conditioning instrument itself, as well as the pressure transmitter, can be operated by means of the standard six-key adjustment field (with clear dialogue text display) on the signal conditioning instrument.

Pressure transmitter D81 METEC

Setup

Adjustment with PC and adjustment program VVO (electronics version B, I, K and L)

With the adjustment program VVO (VEGA Visual Operating) on the PC, you can conveniently adjust the pressure transmitters with electronics version B, I, K and L. The PC communicates with the sensor through the interface converter VEGACONNECT 2 or the standard RS 232 interface cable. A digital adjustment signal is superimposed on the signal and supply cable. The adjustment can be carried out from any location on the signal cable, on the sensor directly, on the signal conditioning instrument or on the VEGALOG processing system.

4.2 Sensor without adjustment

Sensors with electronics version C have no adjustment capability and come preset to the stated measuring range.

4.3 Sensor with adjustment insert, adjustment in the sensor

Sensors with electronics version D and K equipped with an adjustment insert.

1 Reduce value 2 Rotary switch 3 Increase value

4...20mA 12V...36V DC

Bedieneinsatz

operating unit

43215

With the rotary switch you can select four switch positions: s - span z - zero ti - time (integration time) Op - operate (operating status)

24 Pressure transmitter D81 METEC

Setup

43215

4...20mA 12V...36V DC

Bedieneinsatz

operating unit

Adjustment

For adjustment of zero and span, an ammeter must be connected to terminals 1 and 3. The measured value is identical to the output current.

1 Adjustment of zero

(e.g. process pressure zero or empty vessel)

• Set rotary switch to zero.

• By pushing the "+" and "–" keys simultaneously, the current jumps directly to 4 mA or you can adjust a current of 4 mA with the "+" and "–" keys.

Adjustment range of zero:

-20 % … +95 % of nominal measuring range

(corresponds to a turn up of up to +95 %)

Note:

- A modification of zero does not influence the span, i.e. the measuring range final value is simply shifted.

- It is also possible to adjust current for partial fillings and partial pressures, e.g. 8 mA for 25 % and 16 mA for 75 %. The pressure transmitter then automatically calculates the values for 0 % or 100 % (only possible with a level difference ≥ 3.3 %).

Integration time

An integration time ti of 0 … 10 s can be adjusted to damp pressure shocks.

Procedure

• Set rotary switch to ti.

• By pushing the "-" key 10 times, make sure that the integration time is set to 0 s.

• For each 1 s of requested integration time, the "+" key has to be pushed once.

2 Adjustment of span

(e.g. process pressure or level at maximum)

• Set rotary switch to span.

• By pushing the "+" and "–" keys simultaneously, the current jumps directly to 20 mA or you can adjust a current of 20 mA with the "+" and "–" keys.

Adjustment range of span:

3.3 % … 120 % of nominal measuring range

(corresponds to a turn down 1 : 30)

Pressure transmitter D81 METEC

Setup

4.4 Setup with HART® handheld

Sensors with electronics versions I, K and L can be set up with the HART® handheld. A special DD (Data Device Description) is not necessary. Just connect the HART® handheld to the sensor signal cable after you have connected the sensor to supply voltage.

250 Ω

Note:

If the resistance of the voltage supply is less than 250 Ω, a resistor must be looped into the signal/connection cable during adjustment. The digital adjustment and communication signals would otherwise be short-circuited through insufficient resistance of e.g. the supply voltage source or the processing system. Simply connect the adjustment resistor in parallel to the connection socket of the HART® handheld.

PLC

Ri < 250 Ω

26 Pressure transmitter D81 METEC

Setup

The most important adjustment steps

On the following four pages, you see a menu schematic of the HART® handheld in conjunction with pressure transmitters D80 … D87. The most important adjustment steps are marked in the menu schematic with the letters A … D. If you are not familiar with HART handheld, please note:

After entering a parameter, first push the "

ENTER

" key. The adjustment is saved in the

handheld, but not in the sensor itself.

Generic: SENSOR PV LVR

0.000 mbar

10.000 mbar

HELP DEL ESC ENTER

Empty adjustment without medium

After you have pushed " push "

SEND

" (here in the example for the

4.1

(5.1)

ENTER

", you have to

min. adjustment), to transfer the input to the sensor.

Generic: SENSOR

1PV LRV 2 PV URV

After a moment, you are asked to switch the system from manual to automatic operation. Confirm with "OK"

Generic: SENSOR

– WARNING –

Return control loop to automatic control

and then with "

Generic: SENSOR

1PV LRV 2 PV URV

HELP HOME

HOME

You are now in the initial menu.

Generic: SENSOR Online (general)

1 Sensor unit 2 P V 80.945 mbar 3 PV Analog output 4PVLRV 5 PV URV

HELP SAVE

HELP SEND HOME

After pushing "

SEND

", a message is displayed warning you that you are about to change device output and for safety reasons, you should switch your system to manual operation. Push "OK" and the adjustment is now transferred to the sensor.

Generic: SENSOR

– WARNING – Pressing „OK“ will change device output

Put loop in manual

ABORT OK

Pressure transmitter D81 METEC

HART® menu schematic

Switch on:

Hart Communicator

Self T est

in Progress

Firmware Rev: F2.2 Module Rev: 3.6

01992-96 FRSI

after approx. 20 s

Generic: SENSOR Online(Generic)

1 Device setup 2 P V 80.007 mbar 3 P V AO 17.594 mA 4 PV LRV 0.000 mbar 5 URV 100.000mbar

HELP SAVE

Set up the sensor in the sequence of the letters A, B, C and D (adjustment without medium). For the adjustment with medium you set up the sensor in the sequence A1, B1, C and D.

Generic: SENSOR Device setup

1 Process variables 2 Diag/Service 3 Basic setup 4 Detailed setup 5 Review

SAVE HOME

Generic: SENSOR PV

84.558 mbar

HELP EXIT

Generic: SENSOR AO1

17.518 mA

HELP EXIT

Generic: SENSOR Process variables

1 Snsr 84.293 mbar 2 AI % rnge 84.265 % 3 AO1 17.478 mA

HELP SAVE HOME

Generic: SENSOR

1 PV LRV 0.000 mbar 2 URV 100.000 mbar

HELP HOME

Generic: SENSOR

– WARNING –

Return control loop to automatic control

Generic: SENSOR

– WARNING – Pressing „OK“ will change device output

Put loop in manual

ABORT OK

Generic: SENSOR

1 PV LRV 0.000 mbar 2 URV 100.000 mbar

Setup

1.1

HELP SEND HOME

4.1 (5.1)

4.2 (5.2)

Important and required menu windows

Less important menu windows

Not required, unimportant or blocked menu windows

Generic: SENSOR

1 PV LRV 0.000 mbar 2 URV 100.000 mbar

HELP HOME

Generic: SENSOR

1 PV LRV 0.000 mbar 2 URV 100.000 mbar

HELP HOME

continue like under 4

Generic: SENSOR PV LRV

0.000 mbar

HELP DEL ESC ENTER

Empty adjustment without medium

Generic: SENSOR PV URV

100.000 mbar

100.000

HELP DEL ESC ENTER

Full adjustment without medium

continue like under A figure 4.1(5.1)

28 Pressure transmitter D81 METEC

Setup

Generic: SENSOR PV

83.454 mbar

HELP EXIT

Generic: SENSOR PV % rnge

83.385 %

HELP EXIT

Generic: SENSOR AO1

17.327 mA

HELP EXIT

Generic: SENSOR Diag/Service

1 Test device 2 Loop test 3 Calibration 4 D/A trim

SAVE HOME

Generic: SENSOR Basic setup

1Tag 2 PV Unit 3 Range values 4 Device information 5 PV Xfer fnctn

HELP SAVE HOME

6 PV Damping

1.1.1

Safety enquiry acknowledgement

1.1.2

1.1.3

1.2

Blocked menu. The following menu window is indicated but not supported by the sensor. Therefore saving of adjustments carried out here is not possible.

1.3

T r ansmission function (linear)

Generic: SENSOR Choose analog output level

14 mA 2 20 mA 3 Other 4End

ABORT ENTER

Generic: SENSOR Calibration

1 Apply values 2 Enter values

HELP SAVE HOM E

Generic: SENSOR Tag

BAR 20

HELP DEL ESC ENTER

Generic: SENSOR PV Snsr unit mbar

mbar g/cm2 kg/cm2 Pa

Generic. D84 Range values

1 PV LRV 0.000 mbar 2 URV 100.000 mbar 3 PV LSL 0.000 mbar 4 USL 100.000 mbar

HELP HOME

Generic: SENSOR Device information

1 Distributor 2 Model Generic 3 Dev id 11017815 4Tag D84 5 Date 10/01/97

HELP SAVE HOME

6 Write protect 7 Description 8 Message 9 PV Snsr. s/n

Final asmbly num 0 Revision #’s

Generic: SENSOR PV Damp

1.000 s

1 .000 s

1.2.2 Input of individual current

values for test purposes (simulation of measured value)

1.2.3

A1A1

B1B1

1.3.1

1.3.2

ESC ENTER

1.3.3

1.3.4

1.3.6

Empty and full adjustment with medium

}

(see next page)

Newly assigned measurement loop designation to be saved with ENTER and SEND

see next page

}

see next page

}

Generic: SENSOR Review

Model

Generic

HELP PREV NEXT EXIT

Pressure transmitter D81 METEC

NAE CH VERL.

1.5

HELP DEL ESC ENTER

Generic: SENSOR Detailed setup

1 Sensors 2 Signal condition 3 Output condition 4 Device information

SAVE HOME

1.4

}

see next page

HART® menu schematic (continuation)

Generic: SENSOR Calibration

1 Apply values 2 Enter values

HELP SAVE HOME

Generic: SENSOR Range values

1 PV L RV 0.000mbar 2 PV URV 95.981mbar 3 PV LSL 0.000mbar 4 USL 100.000mbar

HELP HOME

Menu fields (broken line): Repetition of previous page

1.2.3

1.2.3.1

Generic: SENSOR Enter values

HELP HOME

1.3.3

Indication of the

}

sensor measuring range limits

Safety enquiry acknowledge-ment

1 PV LRV 0.000 mbar 2 URV 100.000 mbar 3 PV USL 4 PV LSL 0.000 mbar

Generic: SENSOR Set the:

14 mA 2 20 mA 3Exit

ABORTENTER

1.2.3.2 like display 4.1

like display 4.2

Indication of the

}

sensor measuring range limits

Generic: SENSOR PV LRV

0.000 mbar

0.000

HELP DEL ESC ENTER

Generic: SENSOR PV URV

100.000 mbar

1.2.3.1

A1A1

B1B1

1.3.3.1

1.3.3.2

Empty adjustment with medium

Generic: SENSOR Apply new 4 mA input

ABORT OK

Generic: SENSOR Apply new 20 mA input

Full adjustment with medium

ABBR. OK

Setup

Generic: SENSOR Device information

1 Distributor 2 Model Generic 3 Dev id 11017815 4Tag D84 5 Date 01/01/97

HELP SAVE HOME

6 Write protect None 7 Descriptor 8 Message 9 PV Snsr s/n

Final asmbly num 0 Revision #’s

Generic: SENSOR Detailed setup

1 Sensors 2 Signal condition 3 Output condition 4 Device information

SAVE HOME

like menu 1.3.4

1.3.4

Unknown Enumerator

General

(1.3.4.3) Indication of the sensor serial number

(1.3.4.4) Measurement loop designation as under menu window 1.3.1

(1.3.4.5) Date adjustment

None

individual text adjustment

Indication of the sensor serial number (like menu window 1.3.4.3)

Generic: SENSOR Sensors

1.4

1 P V 97.214 mbar 2 PV Snsr unit mbar 3 Sensor information

HELP SAVE HOME

Generic: SENSOR Signal condition

1 Snsr Damp 1.000 s 2 URV 100.000 mbar 3 AI L R V 0.000 mbar 4 Xfer fnctn Linear 5 AI % rnge 97.101 %

HELP SAVE HOME

Generic: SENSOR Output condition

1 Analog output 2 HART output

HELP DEL ESC ENTER

SAVE HOME

1.4.1 Measured value

Modification of the unit

Info on lower and upper measur-

ing range limit as well as min. span (i.e. the sensor characteris-

1.4.2

1.4.3

tics values)

Adjustment of the integration time

Adjustment of zero and span

linear

Indication of the level in % of the adjusted span

30 Pressure transmitter D81 METEC

Setup

Generic: SENSOR Current applied process value: 97.112 mbar

1 Set as 4 mA value 2 Read new value 3 Leave as found

ABORTENTER

Generic: SENSOR Current applied prosess value :96.262 mbar

1 Set as 20 mA value 2 Read new value 3 Leave as found

Generic: SENSOR Analog output

1 AO1 19.920 mA 2AO Alrm typ 3 Loop test 4 D/A trim 5 Scaled D/A trim

HELP SAVE HOME

1.2.3.1.1

ABORT ENTER

1.2.3.1.2

1.4.3.1

Generic: SENSOR Set the:

14 mA 2 20 mA 3 EXIT

Generic: SENSOR Set the:

14 mA 2 20 mA 3Exit

Generic: SENSOR AO Alrm typ Lo

Generic: SENSOR WARN - Loop should be removed from automatic control

Menu windows are displayed but not

}

supported by the sensor. Saving of adjustments carried out here is therefore not possible.

1.2.3.1.1.1

ABORT ENTER

1.2.3.1.2.1

1.4.3.1.2

EXIT

1.4.3.1.3

ABORT OK

Generic: SENSOR Apply new 4 mA input

ABORT OK

Generic: SENSOR Apply new 20 mA input

ABORT OK

Low : In case of failure, current output

goes to 22 mA

High: In case of failure, current output

goes to < 3.6 mA

Generic: SENSOR Choose analog output level

14 mA 2 20 mA 3 Other 4End

1.4.3.1.3

ABORTENTER

Generic: SENSOR Current applied process value: 96.5 49 mbar

Generic: SENSOR Current applied process value: 95.7 03 mbar

1 Set as 20 mA value 2 Read new value 3 Leave as found

Generic: SENSOR Fld dev output is fixed at 4.000 mA

1 Set as 4 mA value 2 Read new value 3 Leave as found

ABORT ENTER

1.4.3.1.3.1

ABBR. OK

Generic: SENSOR HART output

1 Poll addr 0 2 Num req preams 5 3 Burst mode Off 4 Burst option

HELP SAVE HOME

1.4.3.2

Note:

After entering a parameter, push " Confirm the message to switch over to manual operation with "OK". Confirm the message to reset to automatic operation also with "OK". Only then will the adjustment be stored in the sensor and take effect.

Pressure transmitter D81 METEC

Generic: SENSOR Burst mode Off

Off On Not Used None

Generic: SENSOR Burst option *********

PV % range/current Process vars/crnt

HELP ESC ENTER

ESC ENTER

1.4.3.2.3

1.4.3.2.4

ENTER

Off On Not used None Unknown Special

Leave the burst mode in OFF position.

Choice is not supported

" and then "

Sensor signals measured values only on request Sensor signals measured values unrequested

Choice is not supported

SEND

4.5 Adjustment with PC directly on the sensor

(electronics versions I, K and L)

To connect the PC to the sensor, the interface converter VEGACONNECT 2 is required.

Connection of the PC to the sensor

Insert VEGACONNECT into the serial interface of the PC and insert the two-wire cable of VEGACONNECT into the CONNECT socket of the sensor.

Connection of the PC to the signal cable

Connect the two-wire cable of VEGACONNECT 2 to the signal cable leading to the sensor.

Connection configuration with pressure transmitter directly on active PLC

(electronics versions I, K and L)

• Two-wire technology, power supply from active PLC.

• Output signal 4 … 20 mA (passive).

• Adjustment with PC, HART® handheld or adjustment insert located in the sensor or in the external connection housing.

Setup

4 ... 20 mA

VEGACONNECT 2

32 Pressure transmitter D81 METEC

If the resistance of the processing system (PLC) connected to the 4 … 20 mA signal output is less than 200 Ω, a resistor of 250 Ω must be connected to the connection cable during adjustment.

The digital adjustment signal would otherwise be considerably damped or short-circuited through insufficient resistance of a connected processing system, and digital communication with the PC would not be ensured.

PLC

Ri < 250 Ω

Setup

If you have already connected the PC with the adjustment software VVO to your measuring system,

• first switch on the power supply of the connected sensor.

• Switch on the PC and start the adjustment software VVO.

• Choose with the arrow keys or the mouse the item " and click to "

PlanningPlanning

Planning

PlanningPlanning

OKOK

" on the entrance screen

You are asked for user identification.

The adjustment program (VVO), called in the following VVO, gets into contact with the connected sensor…

…and indicates after a few seconds if and with which sensor a connection exists.

The preset user identification can be changed later in the menu "

User access

• Enter under name "

• Also enter "

Pressure transmitter D81 METEC

VEGAVEGA

VEGA

VEGAVEGA

VEGA

" under password.

VEGAVEGA

Note:

If you connect the adjustment software (VVO) to a sensor from which data has already been saved, you are asked if the saved data should be transferred to the sensor or if you want to transfer the sensor data to the database of VVO (the available data of the current sensor will be overwritten).

If you don’t get communication with the sensor, check the following:

- Is the sensor being supplied with sufficient voltage (min. 12 V)?

- When VEGACONNECT 2 is connected to the signal cable, is the load resistance 250 … 350 Ω?

Configuration

• Choose the menu "

system

", to get further information on the sensor type, the software version of the sensor, measuring unit, the measurement loop designation etc.

Configuration/Measuring

Setup

In the menu "

Modify meas. loop configuration

you can give a name (e.g. vessel 10) and a description (e.g. cleaning detergent). to the measurement loop in place of the sensor number. This will make your entire measuring system more understandable.

• Now enter in this menu whether a level, a distance or a gauge should be measured.

• Click to "

• Click to the menu "

ment loop/Modifyment loop/Modify

ment loop/Modify

ment loop/Modifyment loop/Modify

QuitQuit

Quit

QuitQuit

Configuration/Measure-Configuration/Measure-

Configuration/Measure-

Configuration/Measure-Configuration/Measure-

". This is the first step of

• Confirm the adjustment with "

OKOK

" and after

OKOK

saving, you are again in the initial menu.

sensor setup.

34 Pressure transmitter D81 METEC

Setup

Parameter adjustment/Adjustment

In the menu "

justment

adjustments.

• Choose the menu "

eter adjustment

Instrument data/Parameter ad-

", you carry out all important sensor

Instrument data/Param-

• Choose in the menu window "

data parameter adjustment

AdjustmentAdjustment

Adjustment

AdjustmentAdjustment

• In the menu window "

Min/Max. adjustmentMin/Max. adjustment

to "

Min/Max. adjustment

Min/Max. adjustmentMin/Max. adjustment

Adjustment

Instrument

" the menu item

" you click

" (zero/span).

You can carry out the min./max. adjustment with or without medium. Generally you will carry out the adjustment without medium.

The adjustment can be quickly and conveniently carried out without medium, as shown in the example.

• Confirm the warning with "

OKOK

In the heading, you now see the previously entered measurement loop name and the measurement loop description.

Pressure transmitter D81 METEC

• Choose in which unit you want to carry out the adjustment.

• Enter the pressures corresponding in your application to 0 % and 100 % and push

OKOK

Setup

The example shows an absolute pressure transmitter with a measuring range of 0 … 1000 mbar, with which low pressures (partial vacuum) are measured. The min. value was set to 50 mbar and the max. value (span) to 1000 mbar (i.e. the final value of the measuring range).

• Confirm your adjustments with "

OKOK

" and after a short data transmission to the sensor, you are again in the menu window "

Adjustment

• Quit all menu windows with "

QuitQuit

Quit

" and you

QuitQuit

are again in the initial menu.

Offset correction (not possible with absolute pressure transmitters)

With this menu, you can carry out a zero point correction/position correction (unpressurised sensor).

• Click to "

Offset correctionOffset correction

Offset correction

Offset correctionOffset correction

• When the sensor is unpressurised and in installation position, confirm the safety enquiry with "

OKOK

You see the actual measured value from the sensor.

• Click to "

CorrectCorrect

Correct

CorrectCorrect

• Choose in the initial menu "

Parameter adjustment functionsfunctions

functions

functionsfunctions

36 Pressure transmitter D81 METEC

Instrument data/

" the item "

AdditionalAdditional

Additional

AdditionalAdditional

Setup

Again choose the menu "

Offset correction

and you see the corrected zero value.

Note: The menu item "

Real value correction

" enables the correction of the actual pressure by means of a reference value. This corrects the measuring characteristics in a way similar to the offset correction.

Conditioning/Linearisation

In the menu "

justment/Conditioning/Linearisation

cate a filling quantity (volume) to the level (filling height). The correlation between level and volume is described with so-called linearisation curves.

Instrument data/Parameter ad-

" you allo-

You can choose four linearisation curves: Linear, horiz. cylindrical tank, spherical tank and user programmable curve.

Under "

User programmable curve

", you can enter your own linearisation curve as a correlation between level in % or pressure in % (percentage value) and volume (linearised).

• Choose "

then "

User programmable curveUser programmable curve

User programmable curve

User programmable curveUser programmable curve

EditEdit

Edit

EditEdit

" and

• Click to "

mentment

ment

mentment

Pressure transmitter D81 METEC

Instrument data/Parameter adjust-Instrument data/Parameter adjust-

Instrument data/Parameter adjust-

Instrument data/Parameter adjust-Instrument data/Parameter adjust-

", then to "

LinearisationLinearisation

Linearisation

LinearisationLinearisation

ConditioningConditioning

Conditioning

ConditioningConditioning

" and finally to

First of all, a linear correlation is displayed (the function is a straight line).

Setup

In the field "

Transfer measured value

" the current pressure as a percentage of the adjusted span is displayed. The measuring span has already been adjusted with the min./max. adjustment. In our example, this is in the range between 50 … 1000 mbar.

The user-programmable linearisation curve is generated by index markers, consisting of the value pairs " the selected unit) and "

Linearised

Percentage value

" (volume in % or

(level or filling height in %) .

Defining the linearisation curve by incremental filling

In the characteristics of the example (evacuated vessel) you see four index markers or value pairs. There is always a linear interpolation between the index markers.

• Click in the check box "

ues

", to have the selected unit of measure-

Show scaled val-

ment displayed on the y-axis (left bottom part in the menu window).

Index marker 1 is at 0 % level or pressure (percentage value [%]), corresponding to an actual pressure of 0 mbar.

Index marker 2 is at 30 % level or pressure and 5 % filling volume.

Index marker 3 is at 70 % level or pressure and 35 % filling volume.

1000 mbar = 100 liters

700 mbar = 35 liters

300 mbar = 5 liters

0 mbar = 0 liters

Pressure transmitter

Vacuum

Saline solution

Max. 32 index markers (value pairs) can be entered.

• Quit the menu with "

• Confirm the message with "

OKOK

" and your

OKOK

individual linearisation curve will be saved in the sensor.

Again in the menu window "

Conditioning

", you can enter a measured value integration with the menu item "

Integration time

". This is useful for fluctuating product surfaces - it smooths the display and output of measured values. As a standard feature, the integration time is preset to 0 seconds.

• Quit the menu with "

You are again in the menu window "

ment data parameter adjustment

OKOK

Instru-

Index marker 4 is at 100 % level or pressure and 100 % filling volume (100 litres).

38 Pressure transmitter D81 METEC

Setup

Meas. data information

• Click to "

Meas. data info

All available sensor information is displayed. With the button "

reset

" you can delete the pressure and temperature history saved in the sensor.

Backup

In the menu window " with its serial number is displayed. You can save the sensor data in the PC individually or in groups with all adjustments in a directory of your choice. A small text message can be added to each backup.

Backup

", the sensor

Saved sensor data can be transferred later to other sensors.

For example, if you have a system with several of the same storage vessels and identical sensors, it is sufficient to configure one sensor and then transfer the settings to the other sensors.

In this menu window, the actual setting (database) with date and time of the last system configuration is displayed in the yellow window field. If you click on the serial number of the sensor from which you want to adopt the adjustments (in the yellow field), these sensor settings will be transferred to the currently connected sensor with "

Restore to

Pressure transmitter D81 METEC

6 Diagnosis

Diagnosis

Maintenance

The pressure transmitter D81 METEC® is maintenance-free.

Should dismounting of the pressure transmitter (e.g. for vessel cleaning) be necessary, we recommend the use of new seals. Use only original seals from VEGA.

Remedying faults

Through continuous self-monitoring, series 80 pressure transmitters offer maximum reliability. However, if faults occur, please check the following before removing the pressure transmitter:

- the atmospheric pressure compensation (only with gauge pressure measuring ranges),

- the electrical connections.

Checking atmospheric pressure compensation

First of all, open the cover of the housing in which the atmospheric breather facility 1) is located. The displayed measured value must not change. If, however, the displayed value changes, the compensation of the atmospheric pressure does not function correctly and the measured value will be distorted. Therefore check:

- the breather facility on the housing

- the external connection housing VEGADIS 12

- the capillaries in the special cable.

Note:

The same atmospheric pressure must be acting on the breather facility and the open vessel.

Checking electrical connections

Pressure transmitter terminals

1 2 3

Current

Voltage

Current

External energy source

Checking the voltage

- The terminal voltage on the pressure transmitter must be at least 12 V DC.

- The terminal voltage on VEGADIS 12 must be at least 12 V DC or 17 V DC (with display).

- The supply voltage for the pressure transmitter through a VEGAMET signal conditioning instrument must be approx. 18 V DC (on VBUS 25 V DC).

Checking the current

These values are only valid for pressure transmitters with analogue signal transmission, not for pressure transmitters with digital output signal (VBUS).

• Initial current with unimmersed diaphragm of the pressure transmitter: approx. 4 mA (5 mA when operated on a VEGA signal conditioning instrument)

• Measuring current during operation: 4 … 20 mA (5 … 19 mA when operated on a VEGA signal conditioning instrument)

• Exceeding or falling short of the specified measuring range: 20.5 mA or 3.8 mA

• Pressure transmitter defective or shortcircuit: current 22 mA or 3.6 mA

It consists of a black plastic insert with integrated filter element.

40 Pressure transmitter D81 METEC

Instrument modification

7 Instrument modification

7.1 Retrofitting the adjustment insert

Such a retrofitting can be necessary, e.g. when a pressure transmitter with factory setting must be adapted to changed measuring conditions.

Note the following retrofit procedure:

• remove the outdated terminal insert

• mount new adjustment insert

• set up pressure transmitter acc. to chapter "5 Setup"

Remove the outdated terminal insert

1 Separate pressure transmitter from

power supply.

2 Unscrew cover of the connection housing

or loosen the screws on the cover of the

external housing. 3 Remove cover. 4 Loosen connection cables on the terminal

insert. 5 Loosen the three screws of the terminal

insert. 6 Remove terminal insert and pull out plug

connection (to do this, bend locking nose

carefully towards housing centre).

Mount new adjustment insert

7 Plug the connection into the adjustment

insert (must snap in). 8 Place adjustment insert in the housing

and fasten with three screws. 9 Connect the connection cables to the

terminals. 10 Fasten the cover. 11 Reconnect the pressure transmitter to

power supply.

Setup of pressure transmitter

see chapter "5 Setup".

Pressure transmitter D81 METEC

Notes

42 Pressure transmitter D81 METEC

Notes

Pressure transmitter D81 METEC

VEGA Grieshaber KG Am Hohenstein 113 D-77761 Schiltach Phone (07836) 50-0 Fax (07836) 50-201 E-Mail info@de.vega.com

www.vega.com

ISO 9001

All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the latest information at the time of printing.

Technical data to subject to alterations

26534-EN-030415

VEGA D81 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety information

Note Ex area

1 Product description

1.1 Function and configuration

1.2 Electronics version without adjustment

1.3 Electronics version with integrated adjustment in connection housing

1.4 Electronics for connection to VEGADIS 12

1.5 Technical data

1.6 Approvals and certificates

1.7 Dimensions

2 Mounting

2.1 Mounting instructions

3 Electrical connection

3.1 Connection instructions

3.2 Terminal assignment

3.3 Connection to external connection housing VEGABO X 01

3.4 Connection examples

4 Setup

4.1 Adjustment media

4.2 Sensor without adjustment

4.3 Sensor with adjustment insert, adjustment in the sensor

4.4 Setup with HART® handheld

4.5 Adjustment with PC directly on the sensor

6 Diagnosis

7 Instrument modification

7.1 Retrofitting the adjustment insert