VEGA D96, D97 User Manual

Operating Instructions
Level and Pressure
Hydrostatic pressure transmitters
PROF I
D96/D97 (Profibus PA)
PROCESS FIELD BUS
BUS
p
Safety information, note Ex area

Safety information

Please read this manual carefully, and also take note of country-specific installation standards (e.g. the VDE regulations in Germany) as well as all prevailing safety regulations and acci­dent prevention rules. For safety and warranty reasons, any internal work on the instruments, apart from that in­volved in normal installation and electrical con­nection, must be carried out only by qualified VEGA personnel.
2 Pressure transmitter D96/D97 (Profibus PA)

Note Ex area

Please note the attached safety instructions containing important information on installation and operation in Ex areas. These safety instructions are part of the operating instructions and come with the Ex approved instruments.
Contents
Contents
Safety information ........................................................................ 2
Note Ex area ................................................................................ 2
1 Product description
1.1 Function and configuration .................................................. 4
1.2 Types and versions ............................................................. 5
1.3 Technical data ....................................................................... 6
1.4 Approvals and certificates .................................................. 9
1.5 Dimensions ......................................................................... 10
2 Mounting
2.1 Mounting instructions ......................................................... 12
2.2 Compensation of the atmospheric pressure ................... 12
3 Electrical connection
3.1 Connection instructions ..................................................... 13
3.2 Wiring plan .......................................................................... 14
4 Setup
4.1 Setting the Profibus PA address ...................................... 15
4.2 Setup with module
"Menu-driven adjustment with additional functions" ........ 17
4.3 Setup with adjustment software
VEGA Visual Operating (VVO) ......................................... 23
5 Diagnostics
5.1 Maintenance ....................................................................... 31
5.2 Failure rectification ............................................................. 31
6 Instrument modification
6.1 Exchange of adjustment modules
in the processing unit ........................................................ 32
Pressure transmitter D96/D97 (Profibus PA) 3

1 Product description

0 - 20 bar
Product description

1.1 Function and configuration

D96 and D97 pressure transmitters are effi­cient instruments for hydrostatic level meas­urement. A dry ceramic-capacitive CERTEC measuring cell is used as the pressure sen­sor element for D96. D97 uses a dry metallic­capacitive measuring cell with Duratherm 600 diaphragm. The hydrostatic pressure effects a capacitance change on the diaphragm. This capacitance change is detected by an ASIC (Application Specific Integrated Circuit) and converted into a pressure-proportional signal by the integrated electronic module with microcontroller. Precise, high-resolution digital processing of measurement data ensures excellent technical data.
The electronics module is powered by a Profibus DP - PA segment coupler. The measured pressure is transmitted as a digital signal via the bus cable to the processing system and can be displayed on the indicat­ing module.
To improve reliability, the functionality of im­portant electronic components is continu­ously checked, and internal parameters such as sensor value, temperature and operating voltage are closely monitored.
The pressure transmitters D96 with ceramic CERTEC® measuring cell offer 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, fault signals are triggered according to the Profibus PA specification.
The pressure transmitter consists of two parts, the transmitter and the processing unit. Both parts are connected via a three­wire screened cable (depending on the ver-
®
sion, with or without breather capillaries). The processing unit contains the adjustment elements (address switch, keys and LCD) and the terminals for the Profibus PA cable.
Transmitter
Processing unit
Profibus PA version
The instrument profile of the pressure trans­mitter D96/D97 is according to the profile specification version 3.0. The instrument master file (GSD) is supplied with the pres­sure transmitter D96/D97. In addition, the GSD is available as a download file from the VEGA homepage (www.vega.com).
Adjustment and indication
The following adjustment versions are avail­able:
- menu-driven adjustment (4 keys and DOT­Matrix) in the processing unit
- via PC with the adjustment software VEGA Visual Operating (VVO)
- optional, processing unit equipped with an indicating module.
Profibus PA cable
4 Pressure transmitter D96/D97 (Profibus PA)
Product description

1.2 Types and versions

Housing with terminals
Measuring ranges D96
Nominal meas. range (gauge pressure) Gauge press. resistance Low pressure resistance
00.1 bar / 010 kPa 15 bar / 1 500 kPa -0.2 bar / -20 kPa 00.2 bar / 020 kPa 20 bar / 2 000 kPa -0.4 bar / -40 kPa 00.4 bar / 040 kPa 30 bar / 3 000 kPa -0.8 bar / -80 kPa 01.0 bar / 0100 kPa 35 bar / 3 500 kPa -1.0 bar / -100 kPa 02.5 bar / 0250 kPa 50 bar / 5 000 kPa -1.0 bar / -100 kPa 05.0 bar / 0500 kPa 65 bar / 6 500 kPa -1.0 bar / -100 kPa 010.0 bar / 01 000 kPa 90 bar / 9 000 kPa -1.0 bar / -100 kPa 020.0 bar / 02 000 kPa 130 bar / 13 000 kPa -1.0 bar / -100 kPa
Cable outlet axial
Cable outlet lateral Plug connection
lateral
Measuring ranges D97
Nominal meas. range (gauge pressure) Gauge press. resistance Low pressure resistance
00.1 bar / 010 kPa 2.5 bar / 250 kPa -0.1 bar / -10 kPa 00.2 bar / 020 kPa 5 bar / 500 kP a -0.2 bar / -20 kPa 00.4 bar / 040 kPa 10 bar / 1 000 kPa -0.4 bar / -40 kPa 01.0 bar / 0100 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 02.5 bar / 0250 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 05.0 bar / 0500 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 010.0 bar / 01 000 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa 020.0 bar / 02 000 kPa 25 bar / 2 500 kPa -1.0 bar / -100 kPa
Pressure transmitter D96/D97 (Profibus PA) 5
Product description

1.3 Technical data

Mechanical data
Transmitter materials, wetted parts
Pressure transmitter D96
- transmitter stainless steel 1.4571
- diaphragm sapphire-ceramic® (99.9 % Oxide-ceramic)
- suspension cable PE cable bushing CSM
- suspension hose FEP
- connection tube stainless steel 1.4571
- mounting boss stainless steel 1.4571
- transmitter protection PE plastic coating with funnel
- seal measuring cell Viton, Kalrez, EPDM, Hifluor
Pressure transmitter D97
- transmitter stainless steel 1.4571
- diaphragm Duratherm 600
- suspension cable PE cable bushing CSM
- suspension hose FEP
- connection tube stainless steel 1.4571
- mounting boss stainless steel 1.4571
- transmitter protection PE plastic coating with funnel
Transmitter materials, non-wetted parts
Transmitter housing - Alu die casting, powder-coated
Straining clamp galvanized steel Closing screw stainless steel 1.4305
- stainless steel 1.4571
Material of the processing unit
Housing high resistance plastic PBT (Polyester) Ground terminal stainless steel 1.4305 Window of the indication module Lexan
Adjustment and indicating elements (in the processing unit)
Menu-driven adjustment with additional functions
- adjustment elements 4 keys
- indicating elements DOT-matrix display, 3 lines with 7 digits each
Version without adjustment module
- adjustment element 8-pole mini coding switch for adjustment of the
Indication module LC-display with
6 Pressure transmitter D96/D97 (Profibus PA)
bus address
- bar graph (20 segments)
- digital value (4 digits)
- tendency indicators for rising or falling values
Product description
Weight
Basic weight approx. 1.5 kg Suspension cable approx. 0.12 kg/m Closing screw approx. 0.4 kg Straining clamp approx. 0.2 kg Sensor with terminal housing or with direct cable outlet approx. 2.2 kg Processing unit approx. 480 g
Electrical data
Adjustment ranges
Zero adjustable from -20 +95 % of nominal range Span adjustable from 3.3 120 % of nominal range
Supply and signal circuit
Supply voltage 9 … 32 V DC
(delivered by the segment coupler) Current consumption 10 mA ± 1 mA Integration time 0 50 s Rise time 70 ms (ti = 0 sec; 0 – 63 %)
Connection cable, processing unit – Profibus PA
Cable entry M20 x 1.5 (for cable ø 5 9 mm) Screw terminals for conductor cross-sections of up to 2.5 mm Recommended bus cable types - SINEC 6XV 830-5AH10 (Siemens AG)
- SINEC L2 6XV1 830-35H10 (Siemens AG)
- 3079 A (Belden)
2
Connection cable, processing unit – Transmitter
Cable entry M20 x 1.5 (for cable ø 5 9 mm) Screw terminals for conductor cross-sections of up to 2.5 mm
2
Transmitter
- with fixed cable outlet 3-wire screened, with breather capillaries
- with cable connection terminals 3-wire screened
Protective measures
1)
Protection
- transmitter with fixed cable outlet IP 68
- transmitter with terminal housing IP 66/IP 67
- processing unit IP 66/IP 67 Protection class III Overvoltage category III
1)
The use of a properly fitting cable seal in the cable connection is necessary for maintaining the housing protection. If the seal used does not fit the cable, it should be replaced by a suitable one.
Pressure transmitter D96/D97 (Profibus PA) 7
Product description
Accuracy (similar to DIN 16 086, DIN V 19 259 - 1 and IEC 770)
Deviation
Reference conditions (acc. to IEC 770)
- temperature 15°C 35°C
- rel. humidity 45 % 75 %
- air pressure 860 mbar 1060 mbar/86 kPa 106 kPa Determination of characteristics limit point adjustment acc. to DIN 16 086 Characteristics linear Deviation in characteristics
- Turn Down 1 : 1 < 0.25 % with accuracy class 0.25
- Turn Down up to 1 : 5 typ. < 0.3 % with accuracy class 0.25
- Turn Down up to 1 : 10 typ. < 0.4 % with accuracy class 0.25
Hysteresis 1) and repeatability
- D96 (ceramic measuring cell) < 0.02 %
- D97 (metal measuring cell) < 0.05 %
Influence of the ambient temperature
Average temperature coefficient of the zero signal
1) 2)
- Turn Down 1 : 1 < 0.15 %/10 K with accuracy class 0.25
- Turn Down up to 1 : 5 typ. < 0.225 %/10 K with accuracy class 0.25
- Turn Down up to 1 : 10 typ. < 0.3 %/10 K with accuracy class 0.25
1)
< 0.1 % with accuracy class 0.1
typ. < 0.1 % with accuracy class 0.1
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
3)
- D96 (ceramic measuring cell) < 0.1 % per 2 years
- D97 (metal measuring cell) < 0.1 % per 2 years
Other actuating variables
Calibration position upright, diaphragm points downwards Influence of the installation position
- D96 (ceramic measuring cell) < 0.2 mbar
- D97 (metallic measuring cell) < 5.0 mbar 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 range.
2)
In compensated temperature range of 0°C +80°C, reference temperature 20°C.
3)
Acc. to IEC 770, item 6.1.2 relating to the nominal range.
8 Pressure transmitter D96/D97 (Profibus PA)
Product description
Operating conditions
Ambient conditions
Ambient temperature -40°C … +85°C
- with indicating module -20°C … +70°C Storage and transport temperature -40°C … +85°C Pressure transmitter D96
Product temperature with Viton seal tube version -20°C … +85°C
FEP suspension hose -20°C … +85°C PE cable -20°C … +60°C
with EPDM seal
tube version -40°C … +85°C FEP suspension hose -40°C … +85°C PE cable -40°C … +60°C
with Hilfuor seal
tube version -10°C … +85°C FEP suspension hose -10°C … +85°C PE cable -10°C … +60°C
with Kalrez seal
tube version 0°C … +85°C FEP suspension hose 0°C … +85°C PE cable 0°C … +60°C
Pressure transmitter D97
Product temperature
tube version -40°C … +85°C FEP suspension hose -40°C … +85°C PE cable -40°C … +60°C

1.4 Approvals and certificates

Approvals
- Ex Zone 2
- CENELEC EEx ia IIC
- ATEX II 1G EEx ia IIC If the use of approved instruments is required for certain applications, the appropriate official documents (test reports, test certificates and conformity certificates) must be ob­served. These are supplied with the respective instrument.
CE conformity
D96 and D97 pressure transmitters meet 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, May 1993.
Pressure transmitter D96/D97 (Profibus PA) 9
Susceptibility EN 50 082 - 2: 1995
Product description

1.5 Dimensions

175
C1
52
R 11
49
25
X4 A4 V4
A1, A2, B1, B2
66
ø 76
77
ø 41,6
SW 30
41
14
G 1½ A
39
14
C3 D3
100
77
ø 41,6 ø 41,6
SW 60
39
14
G 1½ A
139
SW 60
1½" NPT
G4 N4
ø 10
K
ø 10 ø 13 ø 28
KS R
XP
110
ø 40
134
ø 44
10 Pressure transmitter D96/D97 (Profibus PA)
Product description
Processing unit
with display module
38 82
5
˘
M20x1,5
with protective cover
135
118
108
139
85
72100
130
Pressure transmitter D96/D97 (Profibus PA) 11

2 Mounting

Mounting

2.1 Mounting instructions

The pressure transmitter 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.
An appropriate connection 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 a breather facility integrated in the housing.
Pressure transmitter with housing
- via an integrated breather facility (PTFE
use 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 a special cable con-
nected to the terminals, protection IP 68
We recommend leading a special cable to the processing unit and carrying out the pressure compensation via the integrated breather facility there.
Processing unit
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 made
in dry environment
- with vertical wall mounting, cable entries
must point downward to avoid moisture ingress and buildup on the breather facility.
1)
air permeable and moisture-blocking
12 Pressure transmitter D96/D97 (Profibus PA)
Electrical connection

3 Electrical connection

3.1 Connection instructions

The electronics in pressure transmitter D96/ D97 requires a supply voltage of 9 32 V DC. The supply voltage and the digital output signal are led via the same two­wire cable to the terminals. The external en­ergy is provided via a segment coupler.
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 electrical connection must have a pro­tective measure against polarity reversal.
- The connection of field instruments is gen­erally made via T-adapters on stubs.
- Screened cable is recommended for con­nection (cable types, see chapter "1.3 Technical data"). The shielding must be grounded on both ends (on the T-adapter and on the connection housing of D96/97).
- For use in Ex areas, the installation regula­tions must be observed.
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 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).
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 (instrument 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.
Pressure transmitter D96/D97 (Profibus PA) 13

3.2 Wiring plan

Transmitter with direct cable outlet
Breather capillaries
Suspension cable
br
bl
ge
Screen
Transmitter with terminal housing
Zum Anschluß an
For connection to
E21 PA
4321543215
TransmitterTransmitter
Klemmeinsatz
terminal
Processing unit
Transmitter
E21PA
bl
br
ge
Electrical connection
Display module
OK
121110231
PA+PA
AM10
-
4
PA +
Profibus PA cable
PA -
14 Pressure transmitter D96/D97 (Profibus PA)
Setup
4 Setup
4.1 Setting the Profibus PA address
Since each bus participant must have its own address by which it is identified on the bus, the address must be adjusted before setup of the transmitter. Depending on the instru­ment version, this is done either with the module "Menu-driven adjustment" or the address switch.
Address adjustment with the address switch
Address
12345678
on off
The transmitter is delivered with the address set as shown (all switches position "on").
If the mini coding switch is set to address 126 and higher (factory setting), the address can be modified via software (with VVO). However, this is only possible if the transmit­ter is connected as the only participant with address 126 on the bus. For this reason, we recommend adjusting the address of the sensor via the hardware (switch) before connecting to the bus.
Example:
To select address 37, set switch 1 (value 1), switch 3 (value 4) and switch 6 (value 32) to position "on". Set all other switches to position "off".
Address
12345678
on off
1 2 4 8 16 32 64 128
1+4+32=37
S H
S H
value
Address adjustment with the module "Menu-driven adjustment with addi­tional functions"
The Profibus PA transmitter is delivered with the address set to "126". To modify the ad­dress via the keyboard, the transmitter must be connected to the power supply. This does not have to be over the bus cable. You can use a standard power supply unit or a bat­tery (9 … 32 V DC, 10 mA).
OK
121110231
PA+PA
Transmitter
With the arrow key and the "OK" key, you move to the menu item "Instrument address". There you can adjust the address (0 … 125) with the "+" and "–" key. Save the adjusted address with the "OK" key.
Operate
0.123
bar
Ad-
just-
ment
E21PA
–+
U
B
Calcu-
lation
AM10
-
Output
Station
address
126
Simula-
tion
Addi-
tional
funct.
Escape
Pressure transmitter D96/D97 (Profibus PA) 15
Further adjustment steps (adjust PA output, adjustment etc.) can also be carried out if the processing unit is connected to a power supply unit. However, adjustment is also possible at a later time (when the processing unit is connected to the bus cable).
Adjustment can be simplified by temporarily mounting the cover or the display module on the processing unit laterally or displaced downwards.
Processing unit
Display module
OK
121110231
PA+PA
Transmitter
AM10
-
E21PA
0 - 20 bar
Setup
Tighten screws lightly
16 Pressure transmitter D96/D97 (Profibus PA)
Setup

4.2 Setup with module "Menu-driven adjustment with additional functions"

Adjustment elements
Indication of:
- measured value
- functions in menu
Jump to the menu below
with the "OK" key
Return to menu above with
the "OK" key
Depending on parameter: change value (increase) or choose out of a list
+
OPERATE
3.00
mbar
Depending on the param­eter: change value (de­crease) or choose out of a list
–>
OK
Adjustment with the multifunctional module is menu-orientated and is made via the four keys in conjunction with the text display. The switchover from the measured value indica­tion to the main menu is made with the "OK" key. Use the "®" key to change within a menu from one menu item to another.
Branching points
A branching point is shown by the symbol and enables a jump to the menu below with the "OK" key. In this menu you can find pa­rameters which belong together according to function (possibly in other submenus).
Choose menu item or interrupt adjustment
Depending on the menu item, save the adjusted value or change the menu level
Reset
A reset is indicated by the symbol and enables a jump up to the menu above with the "OK" key.
An automatic jump back to measured value indication is triggered 60 minutes after the last key push.
Parameters have no or symbol. The value of the parameters can be modified with the "+" and "–" keys or chosen from a list. When these keys are pushed once, the value flashes first. When pushed again, the value is modified. The modified value can be saved with the "OK" key. Push the "®" key to cancel input (without saving the modification).
Certain parameters can be displayed but not modified.
Pressure transmitter D96/D97 (Profibus PA) 17
Menu schematic
Setup
Operate
0,0
skal
Adjust-
ment
Measured value indication
Calcu-
lation
Lin.-
curve
activ
with PA output "Pres­sure"
Output
PA-
output
Lin%
pressure
is only displayed if a linearisation curve was activated with VVO and the PA output is set to Lin%
with PA output "%" or "Lin%"
%
ti
1
s
Scaling
out
0
%=
0
Unit
0,0
skal
mbar psi kPa % Lin% inHg
Zurück
100
%=
1000
Escape
Decimal
point
888,8
Unit
0,0
%
mbar psi kPa m ft inch inHg
Simula-
tion
Sim.
x,xx
bar
Escape
Escape
Adjust
with
pres.
Zero
0,0
%
Offset
correc-
tion
Offset
corr. OK?
Sensor
un-
pres.?
18 Pressure transmitter D96/D97 (Profibus PA)
Escape
Only on pressure transmitter for relative pressure meas­urement
Span
100
%
Escape
Adjust
without
pres.
Unit
0,0 bar
psi kPa inHg
Escape
on sensors with a measuring range <1 bar the unit
mbar
Offset
correc-
tion
Offset
corr. OK?
Sensor
un-
pres.?
is displayed instead of
Zero
0,0
bar
Span
1,000
bar
bar
Escape
Setup
Addi-
tional
funct.
Station
address
126
Escape
Sensor
data
Fabr.
date
49.98
Lan-
guage
English
Reset
Escape
Franc. Ital. Español Deutsch
P min
-0,3
bar
1) 1) 1) 1)
1)
The min. and max. values can be set to the actual value
Reset OK ?
Reset Now ! OK ?
P max
15,0
bar
Temp.
30,7
°C
T min
23,5
°C
T max
36,2
°C
by pushing the "+" and "–" keys simultaneously.
Diagno-
se no.
- - -
Escape
White letters indicate the parameters which can be modified with the "+"or "– " key and saved with the "OK" key.
bar
Sensors or measured value informa­tion which cannot be modified in these positions are in italics..
Lan-
List These options can be selected with the "+" or "–" key and saved with the "OK" key.
Adjust
with
pres.
Escape
Use the arrow key to move to the right in the menu sche­matic.
In menu items with these sym­bols, you can move to the top or bottom with the "OK" key.
Span
100,0
guage
English
Franc. Ital. Español Deutsch
Pressure transmitter D96/D97 (Profibus PA) 19
Setup
Adjust PA output
Operate
0,0
skal
%=
Calcu-
lation
0
0
100
%=
1000
Output
PA-
output
Lin%
pres­sure %
Decimal
point
888,8
Scaling
out.
Unit
0,0
%
mbar psi kPa m ft inch inHg
Escape
Escape
Adjust-
ment
The PA output is factory-set to "Lin%". With this adjustment it is possible to carry out an adjustment and a volume measurement ( to measure the volume of a non-linear vessel, the linearisation curve of the vessel also has to be programmed into the D96/D97 with the software VVO). The adjustment "%" enables a level measurement (also with adjustment). If only a pressure value should be outputted, the PA output must be set to "Pressure". An adjustment is then not possible. Move with the arrow and "OK" key to the menu item "PA output", choose there the requested option with the "+" or "–" key and save with the "OK" key.
Under "Scaling out." you can modify the number values (min/max), the position of the decimal point and the unit (with the "+" or "–" key the values can be modified, with the "OK" key the adjustments are saved).
Adjustment
(only possible if "%" or "Lin%" has been cho­sen for the PA output)
Adjustment taking the current pres­sure into account (live adjustment)
Live adjustment comprises two steps: 1 Adjustment of zero 2 Adjustment of span
1 Adjustment of zero
(e.g. process pressure zero or vessel empty)
Set the percentage value to 0.0 %
Zero
0,0
with the "+" or "–" key. Then push the
%
"OK" key.
2 Adjustment of span
(e.g. process pressure zero or vessel level max.)
Set the percentage value to 100 %
Span
100
with the "+" or "–" key. Then push the
%
"OK" key.
Note:
- A modification of zero does not influence the adjusted span, i.e. the final value of the measuring range is shifted.
- Push the "+" and "-" key simultaneously for standard adjustment of zero/span. The value jumps directly to 0 %/100 %.
- When pushing the "+" or "–" keys individu­ally, the output signal remains at the last value; it takes on the adjusted value only after saving with the "OK" key.
- It is also possible to set values for partial fillings or partial pressures, e.g. 25 % and 75 %. The pressure transmitter then auto­matically calculates the values for 0 % or 100 % (only possible with a level difference >3.3 %).
20 Pressure transmitter D96/D97 (Profibus PA)
Setup
Adjustment without taking the current pressure into account (dry adjustment)
Adjustment without pressure comprises four steps: 1 Selection of the unit in which the adjustment
is to be carried out 2 Offset correction 3 Adjustment of zero 4 Adjustment of span
The offset correction (only in gauge pressure mode) defines the reference positions for the measurement. It can be carried out:
- before or after adjustment of zero and
span
- before or after installation of transmitters.
The transmitter must be unpressurised for the offset correction!
Adjustment without pressure can be carried out with the instrument mounted or dis­mounted (e.g. workroom). Any ambient pres­sure has no effect on the adjustment.
1 Selection of the unit
Choose the unit with the "+" or "–"
Adjust
without
key. Save the selected unit with
pres.
the "OK" key.
Unit
0,0
mbar
psi kPa inHg
2 Adjustment of zero
Adjust zero with the "+" or "–" key
Zero
0,0
and save with the "OK" key.
mbar
4 Adjustment of span
Span
Adjust span with the "+" or "–" key
100,0
and save with the "OK" key.
mbar
Note:
- A modification of zero does not influence the span.
- By pushing the "+" and "–" keys, the output remains on the last value - only after saving with the "OK" key will the output take on the adjusted value.
Evaluation
Linearisation curve
Lin.-
Is only displayed if a linearisation
curve
curve has been activated with VVO.
activ
Adjustment of the integration time
ti
An integration time ti of 0 s 50 s
1
can be adjusted with the "+" or "–"
s
shocks. The adjusted value can be saved with the "OK" key.
Selection of the indicated unit
key for damping of pressure
The measurement unit for the indi-
Unit
0,0
cated measured value as well as
skal
for the display module can be
psi
selected here (with the "+" or "–"
kPa
key and the "OK" key). If you select
%
"scal.", the scaled PA output value
m ft
will be displayed (as adjusted
inch
under "Scaling outp.").
mbar
Pressure transmitter D96/D97 (Profibus PA) 21
Setup
Simulation
Simula-
You can adjust with the "+" or "–"
tion
keys an individual pressure or % value to check the outputs of the pressure transmitter and the con-
Sim.
nected components. The adjusted
xx,x
mbar
value flashes during activated simu­lation. The simulation can be
stopped with the "OK" key.
Additional functions
Sensor data
Important sensor data can be displayed via the DOT-matrix for information and diagnostic purposes:
- manufacturing date
- pointer function (p
- pointer function (p
- actual temperature value (Temp)
- pointer function (T
- pointer function (T
- diagnostic number
Addi­tional funct.
min
max
min
max
)
)
)
)
Language
Lan-
guage
English
Franc. Ital. Español Deutsch
Reset
Reset
Reset Now?
Reset Now ! OK ?
The pressure transmitter comes adjusted to the language in which it is ordered. The languages Ger­man, English, French, Italian or Spanish can be chosen with the "+" or "–" key and the "OK" key.
The reset function deletes the ad­justed values and resets the param­eters to the default values. The adjustment data again correspond to the nominal measuring range. The following data are not reset:
- instrument address
- language
- diagnostics number
- offset correction
- pointer
Station
address
Fabr.
date
49.98
1)
The min. and max. values can be set to the actual value by pushing the "+" and "–" keys simultane­ously.
22 Pressure transmitter D96/D97 (Profibus PA)
xxx
Sensor
data
P min
P max
-0,3
150
mbar
mbar
1)
1) 1) 1)
Temp.
30,7
°C
T min
23,5
°C
T max
36,2
°C
Diagno-
se no.
- - -
Setup

4.3 Setup with adjustment software VEGA Visual Operating (VVO)

VVO connection to the bus cable
To operate the sensor with the adjustment software VVO, you require a Profibus DP interface card (from Messrs. Softing) in your PC. This card must be used to provide the connection between computer and Profibus DP cable (a connection directly to the sensor or to the Profibus PA cable is not possible). The computer with VVO then has the status "Master, class 2".
Segment coupler
Profibus PA cable
VVO
DP cable
Profibus DP interface card (Messrs. Softing)
Field distributor
Sensor Sensor Sensor Sensor
If the computer is connected to the Profibus DP cable, you can start VVO. If the following presentation is shown on the monitor, you have to modify the communication settings in VVO. To do this, click to Configuration, point to Program and click to Communication.
First click in the window "Communication" to Profibus DP for PA sensors. Then select the Profibus card installed in your PC. It is also possible to modify the settings for baud rate, further bus parameters and master address.
Note:
Make sure that the master address you are using is not assigned to another bus partici­pant!
Click to OK, if you are finished with the com­munication settings. You then have to restart VVO.
Pressure transmitter D96/D97 (Profibus PA) 23
Setup
Sensor configuration
After starting VVO as previously described or having made connection to the Profibus, the following presentation will be displayed on the monitor. Click to Configuration, then to Measuring system.
If you have already connected several VEGA sensors to the bus, you can select the sen­sor to be configured, in this case pressure transmitter D96/D97. The serial number and the bus address of the sensors are dis­played to enable clear identification.
The menu language of the sensor can be selected (only relevant for a sensor with menu-driven adjustment) and the units for the output of sensor values can be set. If ad­dress 126 has been set directly on the sen­sor, you can assign a bus address to the sensor in the field "Sensor address". Then click to Save.
Information about the sensor identifica­tion number:
You do not have to modify the adjustment "VEGA specific No.". Only if you want to make sure that the pressure transmitter can be replaced on the Profibus by a sensor of another manufacturer do you have to choose the option "Profile specific No.".
Configuration measurement loop
Click to Configuration, point to Measure­ment loop, then click to Modify.
Now all instruments which are connected to the bus are shown (identifiable by the bus address and the serial number). Notice that in this example, the same serial number ap­pears twice. This is a sensor with a measure­ment loop for pressure and a second meas­urement loop for temperature. Choose the sensor (the measurement loop) with which you want to create a measurement loop and click to OK.
24 Pressure transmitter D96/D97 (Profibus PA)
Setup
In the window "Modify meas. loop configura­tion" you can assign a name and a descrip­tion to the measurement loop. State under "Application" if you want to create a process pressure or a level measurement. With OK you return again to the window "VEGA Visual Operating". In the following explanations, we assume that you have chosen the application "Level measurement". The adjustment "Proc­ess pressure measurement" differs only slightly from the following presentation.
Sensor parameter setting – Adjustment
Click to Instrument data, then to Parameter adjustment.
From the window "Instrument data parameter adjustment" you can reach all submenus of the sensor. To get familiar with the available options, try out the buttons one after the other. You will always return to this window. To carry out the adjustment, click the button Adjustment.
Click in the window "Adjustment" to Min/Max adjustment.
Choose the measurement loop in which you want to make the parameter adjustment and click to OK.
Pressure transmitter D96/D97 (Profibus PA) 25
Then in the window "Min/Max adjustment" you have to choose the type of adjustment. If you want to carry out the "Adjustment without taking the actual product into account" (dry adjustment), click to no, then to OK.
Setup
Here you can choose in which unit the adjust­ment should be made (mbar or bar, psi, kPa, inHg). Then you enter the pressure values corresponding to 0 % and 100 %. Then click to OK. The adjustment is now finished.
If you want to carry out the "Adjustment tak­ing the actual product into account" (live adjustment), click in this window to yes, then to OK.
Click to Min-Adjustment or to Max-Adjust- ment to carry out the respective adjustment.
In the window "Min-Adjustment" you choose in which unit the adjustment should be carried out (bar, mbar, psi, kPa, inHg). Then click to Save. The min. adjustment is finished.
In the window "Max-Adjustment" you choose in which unit the adjustment should be car­ried out (bar, mbar, psi, kPa, inHg). Then click to Save. The max. adjustment is fin­ished.
Sensor parameter setting – Linearisa­tion curves
Click in the window "Instrument data param­eter adjustment" to Conditioning.
Note:
For min. adjustment and max. adjustment, defined levels (e.g. 0 % and 100 % or e.g. 20 % and 80 %) have to be present in the vessel.
26 Pressure transmitter D96/D97 (Profibus PA)
Setup
Click in the window "Conditioning" to Lineari- sation.
In the window "Linearisation" you can choose the linearisation curves of a cylindrical or a spherical tank. If you choose a user-pro­grammable curve, you can then click to Edit and open the program "Tank Calculation". With this program you can calculate the curves of different tank shapes (see the manual "VEGA Visual Operating"). After se­lection of the curve, click to OK.
Click in the window "Outputs" to Profibus output.
In the window "Profibus output" you can de­termine the options for the Profibus output (acc. to Profibus PA instrument profile). Con­firm your adjustments with OK.
Sensor parameter setting – Outputs
Click in the window "Instrument data param­eter adjustment" to Outputs.
Pressure transmitter D96/D97 (Profibus PA) 27
Setup
Sensor parameter setting – Integration time
Click in the window "Instrument data param­eter adjustment" to Conditioning.
Click in the window "Conditioning" to Integra- tion time. In the window "Integration time" you can enter a time interval of max. 50 sec­onds. Then click to OK.
Sensor parameter setting – Offset cor­rection
Click in the window "Instrument data param­eter adjustment" to Additional functions, then in the window "Additional functions" to Offset correction.
Confirm the question with OK, in case the conditions are met.
Click in the window "Offset correction" to Correct.
28 Pressure transmitter D96/D97 (Profibus PA)
Setup
Pointer functions
Click in the window "Instrument data param­eter adjustment" to Meas. loop data.
In the window "Meas. loop data", all available, current sensor values and the peak values (pointer function) are displayed. With the button reset you can reset all displayed peak values to the actual value all at once.
Choose the requested measurement loop and click to OK.
In the window "Simulation of outputs", you click to Start to begin the simulation. With the buttons "<–" and "–>" (or the thumb of the scroll bar) you can adjust values between ­10 % and 110 %. Click to Stop to terminate the simulation.
Simulation
For checking outputs of the pressure trans­mitter and connected devices and compo­nents, a pressure can be simulated. Click to
Diagnostics, then to Simulation.
Note:
The simulation mode is not terminated auto­matically, but remains active until you switch it off!
Pressure transmitter D96/D97 (Profibus PA) 29
Display of measured values
The current values of the measurement loops can be displayed from the main menu. Click to Display and then to "Display of measured value".
Choose the requested measurement loop and click to OK.
Setup
In the window "Display of measured value" you can choose the unit in which the meas­ured value should be displayed. In addition, you will see the current value. By clicking to Quit you return to the window "VEGA Visual Operating".
30 Pressure transmitter D96/D97 (Profibus PA)
Diagnostics

5 Diagnostics

5.1 Maintenance

Pressure transmitter D96 and D97 are main­tenance-free.

5.2 Failure rectification

Fault signals
The pressure transmitter D96/D97 provides maximum reliability through its self-test and continuous self-monitoring. If, however, mal­functions occur, the pressure transmitter D96/D97 diagnosis distinguishes between atypical process conditions and faults in the pressure transmitter D96/D97.
Atypical process conditions
Exceeding or falling short of measuring range limits (fault signal extinguishes when the measured value is again in the measuring range).
Failure in the D96/D97 pressure transmit­ter
Failure in the electronics, interference or damage in the measuring cell.
The following table assists in the analysis of fault signals.
Cause of Fault signal via failure DOT-matrix Bar graph
Clearly "OPERATE Bar graph 0 % outside ???? or 100 % measuring bar" digital value range flashes
Overload Bar graph 0 % range or 100 %, of the digital value meas. cell four segments
Failure in all segments D96/D97 flash
Digital indication
flash "- - - -"
On instruments with menu-driven adjustment with additional functions, the possible causes are displayed under the menu item "Diagnos­tics no." in case of failure.
Diagnostics Meaning no.
1 No frequency from C/D-converter
2 Frequency signal of the capacitor not
within the limit values
3 Frequency signal of the reference
capacitor not within the limit values
4 Frequency signal temperature not
within the limit values
7 Communication with EEPROM dis-
rupted
9 Error in EEPROM CRC-checksum
11 Process connection or electronics
module has been exchanged (ap­pears for approx. 20 s after switching on for the first time after exchange)
Troubleshooting
If the displayed value does not correspond to the level in the vessel or to the process pressure, the following measures must be taken:
- check the pressure compensation (only with gauge pressure measuring ranges)
- check the electrical connections.
Checking pressure compensation
Open the processing unit of the pressure transmitter. The measured value must not change. However, if the displayed value changes, compensation of the atmospheric pressure is not ensured, which can result in distortion of the measured value. Check the breather on the processing unit.
Pressure transmitter D96/D97 (Profibus PA) 31
6 Instrument modification
Instrument modification
6.1 Exchange of adjustment mod­ules in the processing unit
Display module
Module for menu-driven adjustment
Module without adjustment
Exchange of the adjustment module
Removal of the adjustment module
Separate processing unit from the power supply.
Remove the screws on the upper side of the housing and remove the cover or the display module.
Disconnect the cables from the terminals, and if applicable, pull out the plug con­nection of the display module.
Remove the two screws of the adjustment module.
Remove adjustment module and pull out plug connection.
Insertion of an adjustment module
Plug the plug connection of the new ad­justment module into the plug-in socket of the electronics module.
Fasten the new adjustment module.
Reconnect the cables, and if applicable,
also the cable from the display module.
Replace the cover or the display module of processing unit.
Reconnect processing unit to power supply.
Processing unit
The modular construction of the processing unit allows retrofitting, interchange and re­moval of the adjustment modules and the display module. Data previously saved (e.g. adjustment values) are not stored in the ad­justment module but in an EEPROM of the electronics module and readjustment is therefore not necessary. The connection of the modules is made via a 4-pole plug con­nection.
32 Pressure transmitter D96/D97 (Profibus PA)
Notes
Pressure transmitter D96/D97 (Profibus PA) 33
Notes
34 Pressure transmitter D96/D97 (Profibus PA)
Notes
Pressure transmitter D96/D97 (Profibus PA) 35
VEGA Grieshaber KG Am Hohenstein 113 D-77761 Schiltach Germany Phone +49 (0) 7836 50-0 Fax +49 (0) 7836 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 subject to alteration
2.24 855 / January 2001
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