VEGA BAR40 User Manual
Operating Instructions
VEGABAR 40 (HART®)
WE'VE GOT
ABILITY
OPERATE
t
i
ZERO
SPAN
123 5678
-
+
VEGADIS 10
+
4...20mA
E12
AM10
Level and Pressure
123 5678
-
+
VEGADIS 10
+
4...20mA
E12
OK
AM10
p
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 40 (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
4Setup
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
1 Product description
Product description
1.1 Function and configuration
VEGABAR 40 process pressure transmitters
are efficient instruments for process pressure measurement. As pressure sensor
element, the dry ceramic-capacitive measuring cell CERTEC
sure 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
®
is used. The process pres-
®
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
ing 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).
®
measur-
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
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
®
(99.9 % Oxide ceramic)
VEGABAR 40 (HART®) 5
Product description
Nominal measuring range
Gau ge pressure
resistance
Low pressure
resistance
Gauge press ure
0…0,1 bar / 0…10 kPa 15 bar / 1 500 kPa -0,2 bar / -20 kP a
0…0,2 bar / 0…20 kPa 20 bar / 2 000 kPa -0,4 bar / -40 kP a
0…0,4 bar / 0…40 kPa 30 bar / 3 000 kPa -0,8 bar / -80 kP a
0…1,0 bar / 0…100 kPa 35 bar / 3 500 kPa -1,0 bar / -100 kP a
0…2,5 bar / 0…250 kPa 50 bar / 5 000 kPa -1,0 bar / -100 kP a
0…5,0 bar / 0…500 kPa 65 bar / 6 500 kPa -1,0 bar / -100 kP a
0…10,0 bar / 0…1 000 kPa 90 bar / 9 000 kPa -1,0 bar / -100 kP a
0…20,0 bar / 0…2 000 kPa 130 bar / 13 000 kPa -1,0 bar / -100 kP a
0…40,0 bar / 0…4 000 kPa 200 bar / 20 000 kPa -1,0 bar / -100 kP a
0…60,0 bar / 0…6 000 kPa 200 bar / 20 000 kPa -1,0 bar / -100 kP a
-0,05…+0,05 bar / -5…+5 kPa 15 bar / 1 500 kPa -0,2 bar / -20 kP a
-0,1…+0,1 bar / -10…+10 kPa 20 bar / 2 000 kPa -0,4 bar / -40 kP a
-0,2…+0,2 bar / -20…+20 kPa 30 bar / 3 000 kPa -0,8 bar / -80 kP a
-0,5…+0,5 bar / -50…+50 kPa 35 bar / 3 500 kPa -1,0 bar / -100 kP a
-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 kP a
-1,0…+4,0 bar / -100…+400 kPa 65 bar / 6 500 kPa -1,0 bar / -100 kP a
-1,0…+10,0 bar / -100…+1 000 kPa 90 bar / 9 000 kP a -1,0 bar / -100 kPa
-1,0…+20,0 bar / -100…+2 000 kPa 130 bar / 13 000 kP a -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 kP a -1,0 bar / -100 kPa
A bsolute 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
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
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
(pressure-tight encapsulation) 18 … 36 V DC
≤ 1 V
SS
≤ 10 mV
SS
(see load diagram)
1000
750
in Ohm
Ltotal
500
250
Load R
0
12
18 24 30 36
Voltage of the external energy UH in Volts
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
2
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
- 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
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
Long-term stability
Long-term drift of the zero signal
1) 3)
< 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
< 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
NSR EN 61 010 - 1: 1993
NAMUR regulations
Full compliance with the NAMUR regulations NE 21 and NE 43.
VEGABAR 40 (HART®) 9
Susceptibility EN 50 082 - 2: 1995
1.5 Dimensions
Housing without indicating module with indicating module
85
~76
72
Pg 13,5
82
Product description
Version
plastic PBT
90
Ground connection
~76
Version
Alu-die casting
82
M20x1,5
Ground connection
156
90
~76
Version
Alu-die casting
in EExd
78
Ground connection
82
½" NPT
10 VEGABAR 40 (HART®)
Product description
Process fittings
92
SW 27
25
¼" NPT
½" NPT
GN
92
SW 27
25
5
ø3
ø6
G ½ A
87
SW 27
20
GM/GV
92
SW 27
25
20
15
ø11,4
½" NPT
GA
87
SW 27
3
G ¼
ø17,5
G ½ A
20
GP
92
SW 27
25
5
20
ø3
ø6
M20x1,5
GB
92
SW 27
3
ø11,4
ø17,5
G ½ A
GR
25
5
ø3
ø6
G ½ A
GI
VEGABAR 40 (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
3 Electrical connection
3.1 Connection instructions
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 ter minal 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).
On instruments for gauge pressure measurement, the atmospheric pressure is compensated via a breather facility integrated in
the housing.
12 VEGABAR 40 (HART®)
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