VEGA BAR40 User Manual

Level and Pressure

Operating Instructions

VEGABAR 40 (HART®) WE'VE GOT

ABILITY

OPERATE

t i ZERO

SPAN

1

2

3

5

6

7

8

+	-	-
4...20mA		VEGADIS 10	AM10
		+

E12

OK

1

2

3

5

6

7

8

+	-	-
4...20mA		VEGADIS 10	AM10
		+

E12

p

Contents

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

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.

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.

2	VEGABAR 40 (HART®)

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 process fitting ........................................	39

VEGABAR 40 (HART®)

3

Product description

1 Product description

1.1 Function and configuration

1.2 Self-monitoring

VEGABAR 40 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

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 have a predefined correlation to each other 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 40 (HART®)

Product description

1.3 Technical 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
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 40 (HART®)

5

			Product description
		Gauge pressure	Low pressure
Nominal measuring range		resistance	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 kPa
0…40,0 bar / 0…4 000 kPa		200 bar / 20 000 kPa	-1,0 bar / -100 kPa
0…60,0 bar / 0…6 000 kPa		200 bar / 20 000 kPa	-1,0 bar / -100 kPa
-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 kPa
-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 kPa
-1,0…+20,0 bar / -100…+2 000 kPa		130 bar / 13 000 kPa	-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		200 bar / 20 000 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		65 bar / 6 500 kPa
0…10,0 bar / 0…1 000 kPa		90 bar / 9 000 kPa
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		200 bar / 20 000 kPa

6	VEGABAR 40 (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		USS	≤	1 V
-	at 500 Hz … 10 kHz	USS	≤	10 mV
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
		(see load diagram)

Ohm	1000
	750
in
Ltotal	500
R
Load	250
	0
	12	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 mm2
Protective measures
Protection 1)	IP 65
Protection class	III
Overvoltage category	III

1)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 40 (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
		< 0.1 % with accuracy class 0.1
-	Turn Down up to 1 : 5	typ. < 0.3 % with accuracy class 0.25
		typ. < 0.1 % with accuracy class 0.1
-	Turn Down up to 1 : 10	typ. < 0.4 % with accuracy class 0.25
		typ. < 0.2 % with accuracy class 0.1
Influence of the ambient temperature
Average temperature coefficient
of the zero signal 2)
-	Turn Down 1 : 1	< 0.15 %/10 K with accuracy class 0.25
		< 0.05 %/10 K with accuracy class 0.1
-	Turn Down up to 1 : 5	typ. < 0.225 %/10 K with accuracy class 0.25
		typ. < 0.075 %/10 K with accuracy class 0.1
-	Turn Down up to 1 : 10	typ. < 0.3 %/10 K with accuracy class 0.25
		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

1)Relating to the nominal measuring range.

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

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

8	VEGABAR 40 (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
-	Hifluour	-10°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 respective 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
	Susceptibility	EN 50 082 - 2: 1995
NSR		EN 61 010 - 1: 1993

NAMUR regulations

Full compliance with the NAMUR regulations NE 21 and NE 43.

VEGABAR 40 (HART®)

9

Product description

1.5 Dimensions

Housing	without indicating module		with indicating module
	85
	~76
			Version
			plastic PBT
	72	82
	Pg 13,5
	Ground connection		~76
	90
			Version
			Alu-die casting
	82
			M20x1,5
	Ground connection		90
	156		~76
			Version
			Alu-die casting
			in EExd
78		82	½" NPT
	Ground connection

10	VEGABAR 40 (HART®)

Product description

Process fittings

	92				92			92
	SW 27				SW 27			SW 27
	25		15	20	25		20	25	5
		¼" NPT				ø11,4			ø3
		½" NPT				½" NPT			ø6
									M20x1,5
		GN				GA			GB
92		87				87			92
SW 27			SW 27				SW 27		SW 27
25	5	20	3			20	3		25	5
	ø3				G ¼			ø11,4		ø3
	ø6				ø17,5			ø17,5		ø6
	G ½ A				G ½ A			G ½ A		G ½ A
	GM/GV				GP			GR		GI

VEGABAR 40 (HART®)

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		Mounting, Electrical connection
2 Mounting		3 Electrical connection
2.1 Mounting instructions		3.1 Connection 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.

2.2Compensation of the atmospheric pressure

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

The electronics in VEGABAR 40 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 above mentioned 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 40 (HART®)