Directed Electronics 625 Operating instructions

Operating Instructions
Signal conditioning and display
instrument for level sensors
VEGAMET 625
Double channel HART
Document ID: 28970
Contents
Contents
1 About this document
1.1Function............................................................................................................................ 4
1.2 Target group...................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety
2.1 Authorised personnel........................................................................................................ 5
2.2 Appropriate use................................................................................................................. 5
2.3 Warning about incorrect use.............................................................................................. 5
2.4 General safety instructions................................................................................................ 5
2.5 Safety label on the instrument........................................................................................... 6
2.6 CE conformity.................................................................................................................... 6
2.7 Safety instructions for Ex areas......................................................................................... 6
2.8 Overfill protection according to WHG................................................................................ 6
2.9 Environmental instructions................................................................................................ 6
3 Product description
3.1 Configuration..................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3Operation.......................................................................................................................... 8
3.4 Packaging, transport and storage...................................................................................... 9
4Mounting
4.1 General instructions........................................................................................................ 10
4.2 Mounting instructions...................................................................................................... 10
5 Connecting to power supply
5.1 Preparing the connection................................................................................................ 12
5.2 Input mode active/passive............................................................................................... 12
5.3 Connection procedure..................................................................................................... 13
5.4 Wiring plan...................................................................................................................... 14
6 Setup with the integrated display and adjustment unit
6.1 Adjustment system.......................................................................................................... 16
6.2 Setup steps..................................................................................................................... 17
6.3 Menu schematic.............................................................................................................. 27
7 Setup with PACTware
7.1 Connect the PC............................................................................................................... 35
7.2 Parameter adjustment with PACTware............................................................................. 37
7.3 Setup web server/e-mail, remote enquiry........................................................................ 38
9 Maintenance and fault rectification
9.1Maintenance................................................................................................................... 49
9.2 Rectify faults.................................................................................................................... 49
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VEGAMET 625 • Double channel HART
28970-EN-150129
8 Application examples
8.1 Level measurement in a cylindrical tank with overfill protection/dry run protection.......... 39
8.2 Weir control of a water power station............................................................................... 40
8.3 Interface measurement with VEGAFLEX......................................................................... 42
8.4 Pump control 1/2 (running time controlled)...................................................................... 43
8.5 Tendency recognition...................................................................................................... 45
8.6 Flow measurement.......................................................................................................... 47
Contents
9.3
How to proceed if a repair is needed............................................................................... 51
10Dismount
10.1 Dismounting steps.......................................................................................................... 52
10.2Disposal.......................................................................................................................... 52
28970-EN-150129
11Supplement
11.1 Technical data................................................................................................................. 53
11.2 Overview applications/functionality................................................................................. 55
11.3Dimensions..................................................................................................................... 56
Supplementary documentation
Information:
Supplementary documents appropriate to the ordered version come
with the delivery. You can find them listed in chapter "Product description".
Editing status: 2015-01-13
VEGAMET 625 • Double channel HART
3
1 About this document
1 About this document
1.1Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instructions for maintenance and fault rectification. Please read this information before putting the instrument into operation and keep this manual
accessible in the immediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained specialist
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.
1.3 Symbols used
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
•
→
1
SIL applications
This symbol indicates instructions for functional safety which must be
taken into account particularly for safety-relevant applications.
List
The dot set in front indicates a list with no implied sequence.
Action
This arrow indicates a single action.
Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of batteries and accumulators.
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VEGAMET 625 • Double channel HART
2 For your safety
2 For your safety
2.1 Authorised personnel
All operations described in this operating instructions manual must
be carried out only by trained specialist personnel authorised by the
plant operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2 Appropriate use
VEGAMET 625 is a universal signal conditioning instrument and
power supply unit for connection of two HART sensors.
You can find detailed information about the area of application in
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
used according to the specifications in the operating instructions
manual as well as possible supplementary instructions.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbitrary conversions or modifications are explicitly forbidden.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards, e.g. vessel overfill or damage to system
components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and guidelines. The instrument must only be operated in a
technically flawless and reliable condition. The operator is responsible
for the trouble-free operation of the instrument.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regulations.
28970-EN-150129
The safety instructions in this operating instructions manual, the national installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbitrary conversions or modifications are explicitly forbidden.
The safety approval markings and safety tips on the device must also
be observed.
VEGAMET 625 • Double channel HART
5
2 For your safety
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 CE conformity
The device fulfills the legal requirements of the applicable EC guidelines. By affixing the CE marking, we confirm successful testing of the
product.
You can find the CE Certificate of Conformity in the download section
of our homepage.
Electromagnetic compatibility
The instrument is designed for use in an industrial environment.
Nevertheless, electromagnetic interference from electrical conductors
and radiated emissions must be taken into account, as is usual with a
class A instrument according to EN 61326-1. If the instrument is used
in a different environment, its electromagnetic compatibility with other
devices must be ensured by suitable measures.
2.7 Safety instructions for Ex areas
Please note the Ex-specific safety information for installation and operation in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.
2.8 Overfill protection according to WHG
In Germany the WHG (Water Resource Act) stipulates an overfill
protection for systems that deal with substances hazardous to water.
An appropriately certified sensor is the prerequisite for such protection. The VEGAMET 625 fulfils the construction and testing principles
for overfill protection systems. This is certified by the TÜV (Technical Control Board) statement "PP 5003/09". You can download this
document from our homepage under "Downloads - Approvals - Signal
conditioning instruments - Overfill protection".
2.9 Environmental instructions
Protection of the environment is one of our most important duties.
That is why we have introduced an environment management system
with the goal of continuously improving company environmental protection. The environment management system is certified according
to DIN EN ISO 14001.
Please help us fulfill this obligation by observing the environmental
instructions in this manual:
6
Chapter "Packaging, transport and storage"
Chapter "Disposal"
VEGAMET 625 • Double channel HART
28970-EN-150129
•
•
3 Product description
3 Product description
3.1 Configuration
Scope of delivery
The scope of delivery encompasses:
Constituent parts
The VEGAMET 625 consists of the components:
•
•
•
•
•
•
•
VEGAMET 625 signal conditioning instrument
Terminal socket
Coded pins and bridges
RS232 modem connection cable (optional)
Documentation
–– this operating instructions manual
–– Supplementary instruction 30325 "RS232/Ethernet connection"
(optional)
–– Supplementary instructions manual 30768 "Modbus-TCP,
VEGA ASCII protocol" (optional)
–– Ex-specific "Safety instructions" (with Ex versions)
–– if necessary, further certificates
VEGAMET 625 signal conditioning instrument with display and
adjustment unit in the front
Terminal socket
1
1
2
3
4
5
6
7
8
2
1
2
3
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VEGAMET
9 10
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on
17 18
11 12
20 21 22
13 14
15 16
23 24 25 26 27 28
Fig. 1: VEGAMET 625
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2
3
4
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28970-EN-150129
Type label
Ex separating chamber with Ex version
VEGAMET 625
Display and adjustment unit
Communication interface for VEGACONNECT (I²C)
RS232 or Ethernet interface (optional)
Terminal socket
The type label contains the most important data for identification and
use of the instrument:
•
•
•
•
Article number
Serial number
Technical data
Article numbers, documentation
VEGAMET 625 • Double channel HART
7
3 Product description
The order data and the documentation of the instrument can be
retrieved by means of the instrument serial number on the type label.
To do this, go to www.vega.com, "VEGA Tools" and "serial number
search".
Application area
3.2 Principle of operation
VEGAMET 625 is a universal signal conditioning instrument for a
number of applications such as level, gauge, interface and process
pressure measurement. At the same time, it can serve as power
supply unit for connected sensors. VEGAMET 625 is designed for
connection of two independent VEGA HART sensors. Hence two
independent measurements can be carried out. By means of a third
measurement loop, the difference between the two input values can
be calculated.
On instruments with one of the optional interfaces (RS232/Ethernet),
the measured values can be retrieved via modem or network and displayed by means of a web browser, Visual VEGA or WEB-VV. It is also
possible to send measured values and messages via e-mail. The use
of VEGAMET 625 is particularly suitable for stocktaking, VMI (Vendor
Managed Inventory) and remote enquiry.
Functional principle
The VEGAMET 625 signal conditioning instrument can power two
HART sensors and process their measured signals via the same
cable. The measured value transmission is carried out via a digital
bus system (HART Multidrop). The requested parameter is displayed
and also sent to the integrated current outputs for further processing.
Hence the measured signal can be transferred to a remote indication
or a superordinate control system. Three level relays for control of
pumps or other actuators are also integrated.
Voltage supply
Wide-range power supply unit with 20 … 253 V AC/DC for worldwide
use.
Detailed information about the power supply can be found in chapter
"Technical data".
3.3Operation
The instrument can be adjusted with the following adjustment media:
•
•
With integrated display and adjustment unit
an adjustment software according to FDT/DTM standard, e.g.
PACTware and a Windows PC
The entered parameters are generally saved in VEGAMET 625, when
used with PACTware and PC also optionally in the PC.
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VEGAMET 625 • Double channel HART
28970-EN-150129
Information:
When using PACTware and the corresponding VEGA DTM, additional
settings can be carried out which are not possible or only partly possible with the integrated display and adjustment unit. When using an
adjustment software, you either need one of the integrated interfaces
(RS232/Ethernet) or the interface converter VEGACONNECT.
3 Product description
Further instructions for setting up the web server and e-mail functions
can be found in the online help of PACTware or the VEGAMET 625
DTMs as well as the operating instructions manual "RS232/Ethernet
connection".
Packaging
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environmentfriendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
Transport inspection
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or concealed defects must be appropriately dealt with.
Storage
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
•
Not in the open
Dry and dust free
Not exposed to corrosive media
Protected against solar radiation
Avoiding mechanical shock and vibration
Storage and transport temperature see chapter "Supplement Technical data - Ambient conditions"
Relative humidity 20 … 85 %
28970-EN-150129
Storage and transport
temperature
•
•
•
•
•
•
VEGAMET 625 • Double channel HART
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4 Mounting
4Mounting
Installation possibilities
Mounting
4.1 General instructions
Each series 600 instrument consists of the actual signal conditioning
instrument as well as a plug-in socket for carrier rail mounting (tophat rail 35 x 7.5 according to DIN EN 50022/60715). Because it has
protection class IP 30 or IP 20, the instrument is intended to be used
in switching cabinets.
4.2 Mounting instructions
The plug-in socket is designed for carrier rail mounting. The operating voltage is connected to terminals 17 and 18. For neighbouring
series 600 instruments it is possible to continue connection L1 and
N directly via the supplied bridges. Max. five instruments can be connected through in this way.
Danger:
Looping through via bridges is only allowed for operating voltage
(sockets L1 and N). The bridges must never be used with single
instruments, at the end of a row of instruments or with other sockets.
If this rule is not heeded, there is a danger of coming into contact with
the operating voltage or causing a short circuit.
A VEGAMET 625 in Ex version is an auxiliary, intrinsically safe instrument and may not be installed in explosion-endangered areas.
Before setup, the Ex separating chamber must be attached (as shown
below) with Ex versions. Safe operation can be only ensured if the
operating instructions manual and the EG type approval certificate
are observed. VEGAMET 625 must not be opened.
Instrument coding
All signal conditioning instruments are provided with different gaps
dependent on type and version (mechanical coding).
The plug-in socket is provided with coded pins that can be inserted to
prevent accidental interchanging of the various instrument types.
With a VEGAMET 625 in Ex version, the supplied coded pins (type
coded pin and Ex coded pin) must be inserted by the user according
to the below chart.
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VEGAMET 625 • Double channel HART
4 Mounting
1
1
2
3
Ao
Bo
Co
1o
2o
3o
o
o
o
4
7o
8o
9o
o
o
12 o
4
VEGA
N
L1
5
6
7
Ao
Bo
Co
1o
2o
3o
4o
5o
6o
7o
8o
9o
10 o
11 o
12 o
8
VEGA
2
3
N
L1
4
Fig. 2: Plug-in socket VEGAMET 625
Ex separating chamber
Ex coding with Ex version
Type coding for VEGAMET 624/625
Bridges for looping the operating voltage
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2
3
4
VEGAMET 625 • Double channel HART
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5 Connecting to power supply
5 Connecting to power supply
Note safety instructions
5.1 Preparing the connection
Always keep in mind the following safety instructions:
•
•
Connect only in the complete absence of line voltage
If overvoltage surges are expected, overvoltage arresters should
be installed
Take note of safety
instructions for Ex
applications
In hazardous areas you must take note of the respective regulations,
conformity and type approval certificates of the sensors and power
supply units.
Select power supply
The voltage supply can be 20 … 253 V AC/DC, 50/60 Hz.
Select connection cable
The voltage supply of VEGAMET 625 is connected with standard
cable according to the national installation standards.
Standard two-wire cable can be used for connecting the sensors. The
screening is absolutely necessary to ensure interference-free operation with HART sensors.
Cable screening and
grounding
Connect the cable screen on both ends to ground potential. In the
sensor, the screen must be connected directly to the internal ground
terminal. The ground terminal on the outside of the sensor housing
must be connected to the potential equalisation (low impedance).
If potential equalisation currents are expected, the screen connection
on the side of VEGAMET 625 must be made via a ceramic capacitor
(e. g. 1 nF, 1500 V). The low frequency potential equalisation currents
are thus suppressed, but the protective effect against high frequency
interference signals remains.
Select connection
cable for Ex applications
Take note of the corresponding installation regulations for Ex applications. In particular, make sure that no potential equalisation currents
flow over the cable screen. In case of grounding on both sides this
can be achieved by the use of a capacitor or a separate potential
equalisation.
5.2 Input mode active/passive
Through the selection of the terminals, you can choose between active and passive operation of the measuring data intput.
•
12
VEGAMET 625 • Double channel HART
28970-EN-150129
•
In active mode, VEGAMET 625 provides the power for the
connected sensors. Power supply and measurement data are
transmitted over the same two-wire cable. This mode is provided
for connection of measuring transducers without separate voltage
supply (sensors in two-wire version).
In passive mode the sensors are not powered, only the measured
value is transmitted. This input is for connection of transmitters
with their own separate voltage supply (sensors in four-wire
version). The VEGAMET 625 can be also looped into the existing
circuit like a normal ammeter.
5 Connecting to power supply
Note:
With a VEGAMET 625 in Ex version, the passive input is not availble
for approval technical reasons.
5.3 Connection procedure
VEGAMET 625 is designed for connection of two HART sensors.
Because they are accessed via different addresses in the HART
multidrop mode, both sensors are connected to the same sensor
input. These are either terminals 1/2 (active input) or terminals 3/4
(passive input). Simultaneous mixed operation on active and passive
input is not possible. The measured value transmission is carried out
via the digital HART signal. An analogue 4 … 20 mA transmission is
not possible.
Because this is a digital bus system, only one two-wire cable should
lead to the two sensors. A distributor can be connected directly in
front of the sensors. As an alternative, the connection to the next sensor can be continued via the second cable entry in the sensor housing. Before connection, the addressing the sensors should be carried
out, see chapter "Setup".
Note:
Before the actual setup, each HART sensors must be assigned an
address (address range 1-15), (see chapter "Setup"). Address 0
(mode 4 … 20 mA) must not be used. When assigning an address,
only one sensor should be connected to VEGAMET 625. If connection is completed already, the wiring must be briefly cancelled for
addressing. Depending on the installation location of the sensors, it
can be advantageous to carry out this addressing before installing
and connecting the sensors. This can be conveniently carried out
e.g. in the workshop. You just need a 24 Volt power supply as well as
an indicating and adjustment module PLICSCOM or the adjustment
software PACTware with VEGACONNECT.
Move on to electrical connection and proceed as follows:
1. Snap the socket without VEGAMET 625 onto the carrier rail
2. Connect sensor cable to terminal 1/2 (active input) or 3/4 (passive
input), provide a screening
3. When using several sockets, loop the power supply by means of
bridges
4. Connect power supply (switched off) to terminal 17 and 18
5. If necessary, connect relays or other outputs
28970-EN-150129
6. Insert VEGAMET 625 into the plug-in socket and screw it down
tightly
Note:
If the addressing of the sensors has not yet been carried out, only one
sensor must be connected. Addressing (see chapter "Setup") of the
first sensor can then be carried out. Afterwards, the first sensor must
be disconnected again and the next sensor connected and provided
with an address. Then all sensors can be connected and setup can
be started.
VEGAMET 625 • Double channel HART
13
5 Connecting to power supply
Before setting up Ex versions, make sure the Ex separating chamber
is plugged on the left housing side (above the sensor terminals). The
pins for type and Ex coding must also be inserted correctly.
Wiring plan for two-wire
sensors
5.4 Wiring plan
10
+ -
+ -
1
3
2
8
4
5
6
7
8
9
13
4
9 10
12
6
+ -
+ -
11 12
13 14
15 16
17 18 19 20 21 22
11
5
+ -
23 24 25 26 27 28
+ L1 N
7
1
2
3
Fig. 3: Wiring plan VEGAMET 625 with two-wire sensors
1 Internal operating relay 1
2 Internal operating relay 2
3 Internal operating relay 3
4 Internal current output 1
5 Internal current output 2
6 Internal current output 3
7 Voltage supply of VEGAMET 625
8 Measurement data input with sensor supply (active input)
9 Measurement data input (passive input), not in Ex ia
10 Internal fail safe relay
11 HART two-wire sensor with Multidrop address 1
12 HART two-wire sensor with Multidrop address 2
13Distributor
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VEGAMET 625 • Double channel HART
5 Connecting to power supply
Wiring plan for four-wire
sensors
10
+ -
+ -
1
3
2
8
4
5
6
7
8
9
13
4
9 10
11
12
6
+ -
+ -
11 12
13 14
15 16
17 18 19 20 21 22
14
5
+ -
23 24 25 26 27 28
+ L1 N
7
1
2
3
Fig. 4: Wiring plan VEGAMET 625 with four-wire sensors
28970-EN-150129
1 Internal operating relay 1
2 Internal operating relay 2
3 Internal operating relay 3
4 Internal current output 1
5 Internal current output 2
6 Internal current output 3
7 Voltage supply of VEGAMET 625
8 Measurement data input with sensor supply (active input)
9 Measurement data input (passive input), not in Ex ia
10 Internal fail safe relay
11 HART four-wire sensor with Multidrop address 1
12 HART four-wire sensor with Multidrop address 2
13Distributor
14 Power supply for four-wire sensors
VEGAMET 625 • Double channel HART
15
6 Setup with the integrated display and adjustment unit
6 Setup with the integrated display and
adjustment unit
Function
Display and adjustment
elements
6.1 Adjustment system
The integrated display and adjustment unit is used for measured
value display, adjustment and diagnosis of VEGAMET 625 as well as
the connected sensors. The indication and adjustment are carried out
via four keys and a clear, graphic-capable display with background
lighting. The adjustment menu with selectable language is clearly
structured and enables easy setup.
Certain adjustment options are not possible or only partially available
with the integrated display and adjustment unit, e.g. settings for the
e-mail server. For such applications, the use of PACTware with appropriate DTMs is recommended.
7
1
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Fig. 5: Display and adjustment elements
Key functions
1
2
3
4
5
6
7
LC display
Adjustment keys
Communication interface for VEGACONNECT
Status indication operation
Status indication fail safe relay
Status indication interface activity
Status indication operating relay 1 - 3
•
[OK] key:
–– Move to the menu overview
–– Confirm selected menu
–– Edit parameter
–– Save value
•
•
16
[+] key:
–– Change value of the parameter
[ESC] key:
–– Interrupt input
VEGAMET 625 • Double channel HART
28970-EN-150129
•
[->] key to select:
–– Menu change
–– Select list entry
–– Select editing position
6 Setup with the integrated display and adjustment unit
–– Jump to next higher menu
Note:
Approx. 10 minutes after the last pressing of a key, an automatic reset
to measured value indication is triggered. Any values not confirmed
with [OK] will not be saved.
Parameter adjustment
6.2 Setup steps
Through parameter adjustment, the instrument is adapted to the individual application conditions. A measurement loop calibration is the
most important step and should always be carried out. A scaling of
the measured value to the desired physical variable and unit, possibly
including a linearization curve, is often useful. The adaptation of the
relay switching points or the setting of an integration time to smooth
the measured value are further standard adjustment options.
Instruments with Ethernet interface can be provided with a Host name
suitable for the measurement loop. As an alternative to the addressing
via DHCP, it is also possible to adjust an IP address and subnet mask
suitable for your network. If necessary, the e-mail/Web server can be
also configured with PACTware.
Information:
When using PACTware and the corresponding VEGA DTM, additional
settings can be carried out which are not possible or only partly possible with the integrated display and adjustment unit. When using an
adjustment software, you either need one of the integrated interfaces
(RS232/Ethernet) or the interface converter VEGACONNECT.
Further instructions for setting up the web server and e-mail functions
are stated in the online help of PACTware or the VEGAMET 625 DTMs
as well as the supplementary instructions manual "RS232/Ethernet
connection".
Set HART address
VEGAMET 625 can process measured values of more than one
HART sensor. The measured values are transmitted as digital HART
signals to the same cable (bus). An analogue 4 … 20 mA transmission is not possible, the current is limited to 4 mA. An own, unambiguous address (address range 1-15) must be assigned to each
connected sensor. This mode is also called HART multidrop mode.
Address 0 (mode 4 … 20 mA) must not be used.
28970-EN-150129
Note:
When addresses are being assigned, only one sensor must be connected on the bus. If this is not the case, no sensor can be accessed
and it is not possible to assign an address.
The addressing can be carried out directly on each HART sensor via
the respective adjustment unit or adjustment software. As an alternative, the setting of the sensor address can be also carried out via the
VEGAMET menu under "Service - Sensor address" (see chapter
"Setup procedure" under "Service - Change sensor address").
VEGAMET 625 • Double channel HART
17
6 Setup with the integrated display and adjustment unit
Switch-on phase
After being switched on, VEGAMET 625 first of all carries out a short
self-check. The following steps are carried out:
•
•
•
Internal check of the electronics
indication of the instrument type, firmware version as well as the
instrument TAG (instrument name)
The output signals jump briefly to the set fault value
After the assignment of the addresses to the sensors, the current
measured values will be displayed and outputted.
Measured value indication
As requested, the measured value display shows the individual
measurement loops separately or in a joint overview. The respective
digital display value, the measurement loop name (meas. loop TAG)
and the unit are shown. With the separate presentation, an analogue
bar graph is also displayed and the measured values appear in bigger font size. By pushing the [>] key, you move between the different
indicating options.
Note:
Depending on the configuration and use of all measurement loops,
the cycle time for the measured value transmission can take up to five
seconds.
By pushing [OK] you move from the measured value indication to the
main menu.
Main menu
The main menu is divided into six areas with the following functions:
•
•
•
•
•
•
VEGAMET 625 • Double channel HART
28970-EN-150129
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Device settings: Includes the device-TAG, settings for network
connection such as date/time setting, …
Measurement loop: Includes settings for input selection, adjustment, damping, linearization, scaling, outputs, …
Display: Includes settings to the displayed measured value
Diagnosis Includes information to the device status, error messages
Service Includes simulation, reset, PIN, selectable language,
sensor address, …
Info: Shows serial number, software version, last change, instrument features, MAC addr., …
6 Setup with the integrated display and adjustment unit
→ Select the menu item "Device settings" with [->] and confirm with
[OK].
Device settings - Applica- Under the menu item "Device settings", you can select the requested
tion
application. For all level, gauge and differential measurements, the
application "Standard" is correct.
If an interface measurement should be carried out with a VEGAFLEX
67, you have to choose the menu item "Interface measurement" as
application. After the configuration of the inputs, the exact dielectric
constant for the upper medium must be entered. For further information see chapter "Application examples".
→ Select the requested application with [->] and save your setting
with [OK]. Finally change to the menu item "Input" with [->].
Device settings - Input
Because VEGAMET 625 has two inputs, the measurement loops
must be assigned to the inputs. After the addresses of the HART sensors are assigned, a list of the existing sensors can be prepared and
displayed via "Sensor selection - Sensor search". Now you can assign
the requested sensor to each measurement loop.
For transmission, VEGAMET 625 must be informed which "Sensor
value" should be used for further processing. Depending on the sensor type this can be distance, pressure, interface or temperature. You
will find further information under the menu item "Meas. loop - Input".
→ Allocate the requested inputs to the appropriate measurement
loops, select the suitable sensor value and save your settings with
[OK]. After the first setup, you can modify the inputs also under
"Meas. loop - Input".
28970-EN-150129
Device settings - DeviceTAG
You can assign an unambiguous name to VEGAMET 625 via the
Device-TAG. This function is recommended when several instruments
are implemented and a good documentation of larger systems is
required.
→ Enter the requested values via the appropriate keys and save
Device settings - Host
Name/IP addr.
your settings with [OK].
For instruments with integrated Ethernet interface, the automatic
addressing via DHCP is preset, i.e. the IP address must be assigned
by a DHCP server. Generally the instrument is contacted via the Host
VEGAMET 625 • Double channel HART
19
6 Setup with the integrated display and adjustment unit
name. By default, the host name consists of the serial number plus
"VEGA-" in front. As an alternative, it is also possible to enter a static
IP addr. with Subnet mask and optional Gateway addr.
Note:
Keep in mind that your modification will be only effective after a restart
of VEGAMET 625. You can find further information of these network
parameters in the supplementary instructions "RS232/Ethernet connection" and in the Online help of the respective DTM.
Carry out your settings via the appropriate keys and save with [OK].
→ Carry out your settings via the appropriate keys and save with
[OK]. Disconnect briefly the operating voltage so that the modified settings become effective.
Device settings - Time/
Date
Date and time can be entered in this menu item for instruments with
integrated RS232/Ethernet interface. These time settings are buffered
in case of power failure for approx. 3 days.
→ Enter the values via the appropriate keys and save your settings
with [OK].
Device settings - Commu- For instruments with integrated RS232 interface, you determine here
nication protocol
which mode this serial interface should operate in. The following options are available:
•
•
•
VVO protocol: Direct standard connection between signal conditioning instrument and PC for parameter adjustment and enquiry
(e.g. with PACTware and DTM)
PPP: Dial-up connection between signal conditioning instrument
and modem for independent transmission of e-mails (dial-out connection) or enquiry via web browser (dial-in connection)
ASCII protocol: Direct standard connection between signal conditioning instrument and PC for enquiry with terminal programs,
e.g. Hyperterminal
28970-EN-150129
20
VEGAMET 625 • Double channel HART
6 Setup with the integrated display and adjustment unit
→ Carry out your settings via the respective keys and save with
[OK]. Further information is available in the supplementary
instructions manual "RS232/Ethernet connection" and the online
help of the respective DTM.
Measurement loop - Input Because VEGAMET 625 has two inputs, the measurement loops
must be assigned to the inputs. After the addresses of the HART sensors are assigned, a list of the existing sensors can be prepared and
displayed via the sensor search. Now you can assign the requested
sensor to each measurement loop.
For transmission, VEGAMET 625 must be informed which "Sensor value" should be used for further processing. Depending on the
sensor type this can be distance, pressure, interface or temperature.
When HART sensors of other manufacturers are connected, the options PV (Primary Value) and SV (Secondary Value) will be available.
Prerequisite is that the HART commands 0, 1, 3 and 15 are supported. This information and which measured values should be transmitted is stated in the operating instructions manual of the respective
sensor manufacturer.
Meas. loop - Parameter
The measured variable defines the applicaton of the measurement
loop, the following settings are available depending on the connected
sensor:
•
•
•
•
•
•
Level
Process pressure
Temperature
Difference (only with measurement loop 3)
Interface
Universal (for sensors of other manufacturers)
28970-EN-150129
The third measurement loop is always a differential measurement
loop calculating the difference of the values of measurement loops 1
and 2 (optionally measurement loop 1-2 or 2-1).
Information:
Keep in mind that some settings must be carried out individually several times, because they are specifically required for each measurement loop.
Meas. loop - Adjustment
Through the adjustment the input value of the connected sensor is
converted into a percentage value. This conversion step allows any
input value range to be depicted in a relative range (0 % up to 100 %).
VEGAMET 625 • Double channel HART
21
6 Setup with the integrated display and adjustment unit
Before carrying out the adjustment, the requested adjustment unit can
be selected which depends on the sensor type. With radar, ultrasonic
and guided microwave this is always the distance in metres or feet
"m(d)" or "ft(d)", and with pressure transmitters it is e.g. "bar" or "psi".
The following illustrations and examples relate to the min./max. adjustment of a radar sensor with HART communication.
1.With [OK] you prepare the percentage value for editing, with [->]
you place the cursor to the requested position. Set the requested
percentage value with [+] and save with [OK].
2. After entering the percentage value for the min. adjustment, the
suitable distance value must be entered. If you want the use the
currently measured distance value, select the menu item "Accept"
(live adjustment or adjustment with medium). If the adjustment
should be carried out independent of the measured level, then
select the option "Edit". Enter now the distance value in m [m(d)]
for the empty vessel that is suitable for the percentage value, e.g.
distance from the sensor to the vessel bottom (dry adjustment or
adjustment without medium).
3. Save your settings with [OK] and move to "Max. adjustment" with
[->].
4. As described previously, enter now the percentage value for max.
adjustment and confirm with [OK].
5. After entering the percentage value for the max. adjustment, the
suitable distance value must be entered. If you want the use the
currently measured distance value, select the menu item "Accept"
(live adjustment or adjustment with medium). If the adjustment
should be carried out independent of the measured level, then
select the option "Edit". Enter now the distance value in m [m(d)]
for the full vessel that is suitable for the percentage value (dry
adjustment or adjustment without medium). Keep in mind that the
max. level must be below the radar antenna.
22
VEGAMET 625 • Double channel HART
28970-EN-150129
6. Finally save your settings with [OK], the adjustment is finished.
Keep in mind that this adjustment refers only to the measurement
loop selected by you initially. All other measurement loops must
be adjusted separately, if necessary.
6 Setup with the integrated display and adjustment unit
Meas. loop - Damping
To suppress fluctuations in the measured value display, e.g. caused
by an agitated product surface, an integration time can be set. This
time can be between 0 and 999 seconds. Remember that the reaction
time of the entire measurement will then be longer and the sensor will
react to measured value changes with a delay. In general, a period of
a few seconds is sufficient to smooth the measured value display.
→ Enter the requested parameters via the appropriate keys and
save your settings with [OK].
Meas. loop - Linearization A linearization is necessary for all vessels in which the vessel volume
curve
does not increase linearly with the level, for example, with a cylindrical
or spherical tank. Corresponding linearization curves are preprogrammed for these vessels. They represent the correlation between
the level percentage and vessel volume. By activating the appropriate
curve, the volume percentage of the vessel is displayed correctly. If
the volume should not be displayed in percent but e.g. in l or kg, a
scaling can be also set.
→ Enter the requested parameters via the appropriate keys and
save your settings with [OK].
Meas. loop - Scaling
Scaling means converting the measured value into a certain parameter and unit. The linearized percentage value is the source signal
which is used as basis for the scaling. The indication can then show
the volume in litres e.g., instead of the percentage value. Indication
values from max. -99999 to +99999 are possible.
→ Enter the requested parameters via the appropriate keys and
save your settings with [OK].
In this menu item you can enter an unambiguous designation for each
measurement loop, e.g. the measurement loop name or the tank or
product designation. In digital systems and in the documentation
of larger plants, a singular designation should be entered for exact
identification of individual measuring points.
28970-EN-150129
Meas. loop - Meas. loop
TAG
VEGAMET 625 • Double channel HART
23
6 Setup with the integrated display and adjustment unit
→ Enter the requested parameters via the appropriate keys and
save your settings with [OK].
Meas. loop - Outputs Relays outputs
Under "Outputs" you will find the relay/current outputs. With relay
output, first of all the requested mode ("Overfill protection" or "Dry
running protection") must be selected.
•
•
Overfill protection: Relay is switched off when the max. level is
exceeded (safe currentless state), relay is switched on again when
the level falls below the min. level (switch-on point < switch-off
point)
Dry run protection: Relay is switched off when the level falls
below the min. level (safe currentless state), relay is switched on
again when the max. level is exceeded (switch-on point > switchoff point)
Additional modes such as "Switching window", "Flow" and "Tendency" can be only adjusted via PACTware and DTM.
Select the requested mode and save with [OK]. By pushing [->], you
reach the next menu item.
1. Now enter the reference value to which the relay switching points
relate. By pushing [->], you reach the next menu item.
2. Enter now the switching points for switching the relay on and off.
The parameter to which they refer can also be selected.
In the following window the reaction of the relay in case of failure can
be determined. Here you can define whether, in case of failure, the
switching condition of the relay remains unchanged or the relay is
switched off.
24
The current output is used to transfer the measured value to a higher
ranking system, for example to a PLC, a control system or a measured value indication. This is an active output, i.e. a current is provided
actively. The processing unit must hence have a passive current input.
VEGAMET 625 • Double channel HART
28970-EN-150129
Meas. loop - Outputs Current outputs
6 Setup with the integrated display and adjustment unit
The characteristics of the current outputs can be set to 0 … 20 mA,
4 … 20 mA or inverted. The reaction in case of failure can be also
adapted to the requirements. The parameter to which they refer can
also be selected.
→ Enter the requested parameters via the appropriate keys and
save your settings with [OK].
Display
In the menu item "Display - Indication value", you can set the requested indication value. The following options are available:
•
•
•
•
Percent: adjusted measured value without taking a probably
stored linearization into account
Lin. percent: adjusted measured value by taking a probably
stored linearization into account
Scaled: adjusted measured value by taking a probably stored
linarization into account as well as the values entered under "Scaling"
Sensor value: input value delivered by the sensor. Presentation in
the selected adjustment unit
→ Enter the requested parameters via the appropriate keys and
28970-EN-150129
save your settings with [OK].
Diagnostics
When the instrument displays a failure message, further information is
available under the menu item "Diagnosis - Device status".
Service - Simulation
The simulation of a measured value is used to check the outputs and
connected components. The simulation can be applied to the percentage value, the lin. percentage value and the sensor value.
Note:
Please note that connected system parts (valves, pumps, motors,
control systems) are influenced by the simulation, thus unintentional
plant operating conditions can occur. The simulation is terminated
automatically after approxminately 10 minutes.
VEGAMET 625 • Double channel HART
25
6 Setup with the integrated display and adjustment unit
→ Carry out your settings via the appropriate keys and save with
[OK].
Service - Reset
There are two reset modes:
•
•
Service - Sensor address
Reset to default: with only a few exceptions, all settings will be
reset to default. Exceptions are: Host name, IP-addr., subnet
mask, time, language.
Reset on measurement loop: The settings of the selected measurement loop will be set to default. The measurement loop is
deactivated and the TAG name reset to default.
With every 4 … 20 mA/HART sensor, the measured value can be
transmitted via analog current signal or digital HART signal. This is
regulated via the HART mode or the address. If a HART sensor is set
to address 0, the sensor is in the standard mode. Here the measured
value is transmitted digitally on the 4 … 20 mA cable.
In mode HART Multidrop, an address from 1 … 15 is assigned to the
sensor. By doing so, the current is fix limited to 4 mA and the measured value transmission is only made digitally.
Each sensor connected to VEGAMET 625 must operate in mode
HART multidrop and must be provided with different addresses in
the range between 01 … 15. Via the menu item "Sensor address", it
is possible to change the address of the connected sensor. For this
purpose, enter the previous address of the sensor (factory setting 0)
and in the next window the new address.
Note:
When addresses are being assigned, only one sensor with the same
address must be connected on the bus. If this is not the case, the sensor cannot be accessed and it is not possible to assign an address.
Service - Data transmission
26
With instrument versions with integrated RS232/Ethernet interface,
a manual data transmission to a WEB-VV server can be trigger, for
VEGAMET 625 • Double channel HART
28970-EN-150129
First of all, enter the previous address of the sensor to be modified
(factory setting 0), then you can enter the selected HART address in
the range of 01 - 15 in the menu "New address". Make sure that no
address is assigned twice.
6 Setup with the integrated display and adjustment unit
example, for test purposes. Requirement is that a WEB-VV event was
configured in advance via PACTware/DTM.
Info
In the menu item "Info" the following information is available:
Optional settings
Additional adjustment and diagnostics options are available via the
Windows software PACTware and the suitable DTM. Connection can
be made optionally via the built-in standard interface or one of the
optionally offered interfaces (RS232/Ethernet). Further information
is available in chapter "Parameter adjustment with PACTware", in
the online help of PACTware or the DTM as well as in the operating
instructions manual "RS232/Ethernet connection". An overview of
the standard functions and their adjustment options can be found in
chapter "Functional overview" in the "Supplement".
•
•
•
•
•
Sensor type and serial number
Date of manufacture and software version
Date of last change using PC
Instrument features
MAC address (with interface option Ethernet)
6.3 Menu schematic
Information:
Depending on the instrument version and application, the highlighted
menu windows are not always available.
28970-EN-150129
Measured value indication
VEGAMET 625 • Double channel HART
27
6 Setup with the integrated display and adjustment unit
Device settings
Device settings - Input
28970-EN-150129
28
VEGAMET 625 • Double channel HART
6 Setup with the integrated display and adjustment unit
Measurement loops 1/2 - Input
Meas. loop 1/2 - Change input
28970-EN-150129
Meas. loop 3 - Change input
VEGAMET 625 • Double channel HART
29
6 Setup with the integrated display and adjustment unit
Meas. loop 1/2 - Parameter
Meas. loop 3 - Parameter
Meas. loop - Adjustment
Meas. loop - Damping
28970-EN-150129
30
VEGAMET 625 • Double channel HART
6 Setup with the integrated display and adjustment unit
Meas. loop - Linearization curve
Meas. loop - Scaling
Meas. loop - Meas. loop TAG
28970-EN-150129
Meas. loop - Output - Relay
VEGAMET 625 • Double channel HART
31
6 Setup with the integrated display and adjustment unit
Meas. loop - Output - Current outputs
Display
Diagnostics
28970-EN-150129
32
VEGAMET 625 • Double channel HART
6 Setup with the integrated display and adjustment unit
Service
Service - Simulation
Service - Sensor address
28970-EN-150129
Service - Data transmission (only with option RS232/Ethernet interface)
VEGAMET 625 • Double channel HART
33
6 Setup with the integrated display and adjustment unit
Info
28970-EN-150129
34
VEGAMET 625 • Double channel HART
7 Setup with PACTware
7 Setup with PACTware
7.1 Connect the PC
For a brief connection of the PC, e.g. for parameter adjustment,
connection can be carried out via the VEGACONNECT 4 interface
converter. The necessary I²C interface on the front is available on all
instrument versions. On the computer side, connection is carried out
via the USB interface.
EN
OP
USB
TWIST
LO
CK
Connection of the PC via
VEGACONNECT
3
2
1
Fig. 6: Connection via VEGACONNECT
1 USB interface of the PC
2 I²C connection cable of VEGACONNECT 4
3 I²C interface
Connection of the PC via
Ethernet
With the Ethernet interface, the instrument can be connected directly
to an existing PC network. Any standard patch cable can be used.
A cross-over cable must be used when connecting the instrument
directly to the PC. To reduce EMC interferences, the supplied split ferrite should be connected to the Ethernet cable. Each instrument can
then be accessed from anywhere in the network by an unique Host
name or its own IP address. The parameter adjustment of the instrument via PACTware and DTM can be carried out from any PC. The
measured values can be made available to individual users within the
company network as HTML chart. As an alternative, the independent,
time or event-controlled transmission of measured values via e-mail
is also possible. The measured values can also be called up via a
visualisation software.
28970-EN-150129
Note:
To respond the instrument, the IP address or the Host name must
be known. You can find this information under the menu item "Device
settings". If you are modifying these specifications, the instrument
must be restarted afterwards. Then the instruments can be reached
from everywhere in the network via its IP address or the Host name.
These specifications must be also entered in the DTM (see chapter
"Parameter adjustment with PACTware").
VEGAMET 625 • Double channel HART
35
7 Setup with PACTware
2
3
1
Fig. 7: Connection of the PC via Ethernet
1 Ethernet interface of the PC
2 Ethernet connection cable (Cross-Over cable)
3 Ethernet interface
Connection of the modem The RS232 interface is particularly suitable for simple modem convia RS232
nection. External analog, ISDN and GSM modems with standard
interface can be used. The necessary RS232 modem connection
cable is included with the delivery. To reduce EMC interference, you
should mount the supplied ferrite bead on the RS232 modem connection cable. Via a visualisation software, measured values can be
retrieved remotely and further processed. Alternatively, autonomous
time or event controlled transmission of measured values via e-mail
is also possible. Remote parameter adjustment of the instrument and
the connected sensors is also possible with PACTware.
3
1
2
Fig. 8: Connection of the modem via RS232
1 Analogue, ISDN or GSM modem with RS232 interface
2 RS232 modem connection cable (in the scope of delivery)
3 RS232 interface (RJ45 plug connection)
Connection of the PC via
RS232
If there is no RS232 interface available on the PC or if it is already
occupied, you can also use a USB-RS232 adapter (e.g. article no.
2.26900).
36
VEGAMET 625 • Double channel HART
28970-EN-150129
Via the RS232 interface, direct parameter adjustment and measured
value retrieval from the instrument can be carried out with PACTware.
Use the RS232 modem connection cable supplied with the instrument and an additionally connected null modem cable (e.g. article no.
LOG571.17347). To reduce EMC interference, you should mount the
supplied ferrite bead on the RS232 modem connection cable.
7 Setup with PACTware
4
3
2
1
Fig. 9: Connection of the PC via RS232
1
2
3
4
RS232 interface of the PC
RS232 interlink cable (article no. LOG571.17347)
RS232 modem connection cable (in the scope of delivery)
RS232 interface (RJ45 plug connection)
Assignment RS232 modem connection cable
1
1
8
2
3
5 4 3 2 1
9 8 7 6
RXD
4
2
TXD
3
3
RTS
6
7
CTS
2
8
GND
5
5
DTR
1
4
Fig. 10: Connection assignment of the RS232 modem connection cable
1 Name of the interface cable
2 Assignment of the RJ45 plug (view contact side)
3 Assignment of the RS232 plug (view soldering side)
28970-EN-150129
Prerequisites
7.2 Parameter adjustment with PACTware
As an alternative to the integrated display and adjustment unit, the
adjustment can be also carried out via a Windows PC. For this, the
configuration software PACTware and a suitable instrument driver
(DTM) according to the FDT standard are required. The current PACTware version as well as all available DTMs are compiled in a DTM
Collection. Furthermore, the DTMs can be integrated into other frame
applications compliant with the FDT standard.
Note:
To ensure that all instrument functions are supported, you should
always use the latest DTM Collection. Furthermore, not all described
functions are included in older firmware versions. You can download
VEGAMET 625 • Double channel HART
37
7 Setup with PACTware
the latest instrument software from our homepage. A description of
the update procedure is also available in the Internet.
Further setup steps are described in the operating instructions
manual "DTM Collection/PACTware" attached to each DTM Collection and which can also be downloaded from the Internet. A detailed
description is available in the online help of PACTware and the DTMs
as well as in the supplementary instructions manual "RS232/Ethernet
connection".
Information:
To access the connected sensors, the addressing must be already
carried out, see chapter "Setup procedure - Set HART address". If the
addressing should be carried out now via PACTware, then also only
one sensor must be connected.
Connection via Ethernet
To respond the instrument, the IP address or the Host name must be
known. You can find this information under the menu item "Device
settings". If the project setup is carried out without assistant (offline
mode), IP address and subnet mask or the Host name must be
entered in the DTM. Click in the project window with the right mouse
key on the Ethernet DTM and choose "Add. functions - Modify DTM
addresses".
Standard/Full version
All device DTMs are available as a free-of-charge standard version
and as a full version that must be purchased. In the standard version,
all functions for complete setup are already included. An assistant for
simple project configuration simplifies the adjustment considerably.
Saving/printing the project as well as import/export functions are also
part of the standard version.
In the full version there is also an extended print function for complete
project documentation as well as a save function for measured value
and echo curves. In addition, there is a tank calculation program as
well as a multiviewer for display and analysis of the saved measured
value and echo curves.
7.3 Setup web server/e-mail, remote enquiry
Setup and application examples of the web server, the e-mail functions and the visualisation WEB-VV are specified in the supplementary instructions "RS232/Ethernet connection".
The connection via Modbus-TCP or ASCII protocol is described in the
supplementary instruction manual "Modbus-TCP, ASCII protocol".
Both supplementary instruction manuals are included with every
instrument with RS232 or Ethernet interface.
28970-EN-150129
38
VEGAMET 625 • Double channel HART
8 Application examples
8 Application examples
8.1 Level measurement in a cylindrical tank with
overfill protection/dry run protection
Functional principle
The level is detected via a sensors and transmitted to the signal
conditioning instrument by means of a 4 … 20 mA signal. Here, an
adjustment is carried out converting the input value delivered by the
sensor into a percentage value.
Due to the geometrical form of the cylindrical tank, the vessel volume
does not increase linear with the level. This can be compensated
by selecting the linearization curve integrated in the instrument.
This curve states the relation between percentage level and vessel
volume. If the level should be displayed in litres, also a scaling must
be carried out. For this purpose, the linearized percentage value is
converted into a volume, for example with the unit litres.
Filling and emptying are controlled via relay 1 and 2 which are
integrated in the signal conditioning instrument. During filling, relay
mode "Overfill protection" is set. The relay is thus switched off (safe
currentless state) when the max. level is exceeded, and switched on
again when the min. level is underrun (switch-on point < switch-off
point). During emptying, mode "Dry run protection" is used. This relay
is thus switched off when the min. level is underrun (safe currentless
condition), and switched on again when the min. level is exceeded
(switch-on point > switch-off point).
Rel. 1
Rel. 2
100%
Rel. 1: 90%
Rel. 2: 5%
0%
Fig. 11: Example for a level measurement, cylindrical tank
28970-EN-150129
Example
A cylindrical tank has a capacity of 10000 litres. The measurement
is carried out with a level sensor operating according to the principle
of the guided microwave. The filling by a tank car is controll via relay
1 and a valve (overfill protection). The discharge is carried out via
a pump and is controlled by relay 2 (dry run protection). The max.
volume should be at 90 % level, these are 9538 litres with a standard vessel (according to bearing chart). The min. level should be
VEGAMET 625 • Double channel HART
39
8 Application examples
adjustedto 5 %, this corresponds to 181 litres. The volume should be
displayed in litres.
Adjustment
Carry out the adjustment in the signal conditioning instrument as
described in chapter "Setup steps". No additional adjustment must
hence be carried out on the sensors. For the max. adjustment, fill the
vessel up to the requested max. level and accept the actually measured value. If this is not possible, the respective current value can be
entered alternatively. For the min. adjustment, empty the vessel up to
the min. level or enter the respective current value.
Linearization
To display the percentage level correctly, select under "Measurement
loop - Linearization curve" the entry "Cylindrical tank".
Scaling
To display the volume in litres, you have to enter "Volume" as unit in
litres under "Measurement loop - Scaling". The allocation is then carried out, in this example 100 % ≙ 10000 litres and 0 % ≙ 0 litres.
Relay
Percent is selected as reference value for the relays. The mode of relay 1 is set to overfill protection, relay 2 gets mode dry run protection.
To ensure that the pump switches off in case of failure, the reaction
in case of failure should be adjusted to switching status OFF. The
switching points are adjusted as follows:
•
•
Relay 1: Switch-off point 90 %, switch-on point 85 %
Relay 2: Switch-off point 5 %, switch-on point 10 %
Information:
The switch on and off point of the relays must not be adjusted to the
same switching point because this would cause a permanent switchin
on and off when this threshold is reached. To avoid this effect also
with fluctuating product surface, a difference (hysteresis) of 5 % is
useful between the switching points.
Functional principle
Example
A water power turbine must be protected against impurities in flowing
water. These impurities get stuck on the weir like on a screen. The
must be removed cyclacylly so that the max. flow is ensured. If the
degree of impurity is too high, the water level in front of the system
raises because the total water volume can no longer flow through.
The difference between level in front of and after the weir is hence a
measure of the degree of impurity and can be used to control the weir
cleaner.
The water level in front of the weir (upstream water) and after the weir
(downstream water) is measured each with a VEGAWELL 72 HART.
VEGAMET 625 generates the difference (h3) out of these two levels
(measurement loop 3). If this difference is too high, a signal will be
outputted by one of the integrated relays triggering the weir cleaning.
Exemplary we assume a max. level of 2 m, the weir cleaning should
be started at a difference of 20 cm.
VEGAMET 625 • Double channel HART
28970-EN-150129
40
8.2 Weir control of a water power station
8 Application examples
5
1
h1
h3
3
2
4
Fig. 12: Differential measurement - weir control
1Headwater
2 Tail water
3 Difference h3
4 Reference plane
5 max. level h1
The following steps are necessary:
•
•
28970-EN-150129
•
Selection of the application
–– Select under "Device settings - Application" the entry "Standard" and confirm with [OK]. Via the [->] key you reach the next
step.
Addressing of the sensors
–– Since both sensors are addressed via HART multidrop, first
of all the sensor addressing must be carried out (see chapter
"Setup procedure")
–– Connect sensor 1 for upstream water
–– Enter now under "Service - Change sensor address" in the
menu item "New address" HART address "01"
–– Disconnect sensor 1 and connect sensor 2 for downstream
water
–– Assign HART address "02"
–– Reconnect sensor 1
Assignment of the inputs and measurement loops
–– Measurement loop 1 (upstream water): Start under "Measurement loops - Meas. loop 1 - Input - Change input 1 - Sensor selection" the menu item "Sensor search". With correct
addressing, both sensors must be displayed. Select the first
sensor with address 01
–– Measurement loop 2 (downstream water): Go under "Measurement loops - Measurement loop 1 - Input - Change input
1 - Sensor selection" to the menu item "Sensor list". Select the
second sensor with address 02
–– Measurement loop 3 (difference): This measurement loop
calculates automatically without further settings the difference
between upstream water and downstream water (measurement
loop 1 minus measurement loop 2)
VEGAMET 625 • Double channel HART
41
8 Application examples
•
•
Adjustment
–– Measurement loop 1 (upstream water): Select under
"Measurement loops - Meas. loop 1 - Adjustment" in the menu
item "Adjustment unit" the unit "m" (meter) and the density
unit "1.000 kg/dm³". Enter under "Min. adjustment" 0.00 m and
under "Max. adjustment" the max. level in meter (h1) ein. I.e. in
the existing example 2 m
–– Measurement loop 2 (downstream water): Carry out the
adjustment with the same specifications as for measurement
loop 1
–– Measurement loop 3 (difference): The adjustment of the
upstream water is taken over automatically (0 % ≙ 0.00m, 100%
≙ 2 m)
Relay configuration
–– Select under "Measurementloops - Meas. loop 3 - Outputs Relay otuputs - Relay 3 - Overfill protection - Percent" the menu
item "Switching points relay 3". Enter for switching point "OFF"
10 % and for switching point "ON" 5 %. With these settings,
the relay deenergizes at a difference of 20 cm and switches
on again at 10 cm. Hence the cleaning procedure starts with a
gauge difference of more than 20 cm and is running until the
difference is again below 10 cm.
8.3 Interface measurement with VEGAFLEX
In an interface measurement, there are two different media which
do not mix, e. g. water and oil or solvents. To detect the volume of
both products, it is necessary to detect the height of the upper liquid
(level) and the interface between the two products. A VEGAFLEX is
necessary as a transmitter which delivers the distance to the upper
medium as well as the distance to the interface. Via the adjustment in
VEGAMET 625 the level, interface and layer thickness of the upper
medium can be calculated and displayed.
The following steps are necessary:
•
•
42
Assignment of the inputs and measurement loops
–– Select "Input - Change input". Now the automatic sensor
search is started and if connected correctly, VEGAFLEX will be
displayed. Take over the selection with [OK] and move to the
adjustment of the dielectric constant with [->]. The input variables are assigned automatically to the following measurement
loops:
–– Meas. loop 1: Interface (level of the lower medium)
–– Meas. loop 2: Level (total level of both products)
–– Meas. loop 3: Layer thickness (thickness of the upper medium)
Enter dielectric constant
–– Enter here the exact dielectric constant of the upper medium.
This figure is then transferred automatically to VEGAFLEX.
VEGAMET 625 • Double channel HART
28970-EN-150129
•
Selection of the application
–– Select under "Device settings - Application" the entry "Interface measurement" and confirm with [OK]. Via the [->] key you
reach the next step.
8 Application examples
•
Further information on the dielectric constant are available in
the operating instructions manual of VEGAFLEX. For this application, do not enter a dielectric constant directly on VEGAFLEX, because this value will be overwritten automatically by
VEGAMET 625
Adjustment
–– Each VEGAFLEX is shipped with default settings. The values of
this adjustment are automatically tranferred to VEGAMET 625
during the setup of the interface measurement. Hence, manual
adjustment is usually not necessary. Should the instrument
require a special adjustment, this adjustment can be carried
out any time under "Measurement loops - Adjustment". Keep in
mind that this adjustment must then be carried out separately
for all three measurement loops.
d2
L2
h2
h1
1
d1
TS
L1
Fig. 13: Interface measurement
1 Reference plane
d1 Distance to the interface, meas. loop 1
d2 Distance to the level, meas. loop 2
TS Thickness of the upper medium (d1-d2), meas. loop 3 (displayed value)
h1 Height - Interface (displayed value)
h2 Height - Level (displayed value)
L1 Lower medium
L2 Upper medium
28970-EN-150129
Note:
When using a VEGAFLEX 8x, this sensor must first be set up for
interface measurement. The VEGAFLEX must not be locked by the
PIN, because the VEGAMET requires write access.
8.4 Pump control 1/2 (running time controlled)
Functional principle
Pump control 1/2 is used to control several pumps with the same
function dependent on the previous running time. Always the pump
with the shortest running time is switched on and the pump with
the longest running time switched off. With increased requirement,
all pumps can also run at the same time dependent on the entered
VEGAMET 625 • Double channel HART
43
8 Application examples
switching points. With this measure, a steady utilization of the pumps
is achieved and the reliability increased.
All relays with activated pump control are not assigned to a certain
switching point but are switched on or off depending on the accumulated operating time. The signal conditioning instrument selects
the relay with the shortest operating time when the switch-on point
is reached and the relay with the longest operating time when the
switch-off point is reached.
With this pump control, there are two different versions:
•
•
Pump control 1: The upper switching point determines the switchoff point for the relay, whereas the lower switching point determines the switch-on point
Pump control 2: The upper switching point determines the switchon point for the relay, whereas the lower switching point determines the switch-off point
Example
Two pumps should empty the vessel when a certain level is reached.
At 80 % filling, the pump with the shortest running time should switch
on. If the level nevertheless increases, a second pump should switch
on at 90 %. Both pumps should switch off again at 10 % filling.
Setup
Select in the DTM navigation section the menu items "Meas. loop Outputs - Relay".
•
•
Set mode "Pump control 2" for relay 1 and 2.
Enter the switching points for the affected relays as follows:
–– Relay 1 upper switching point = 80.0 %
–– Relay 1 lower switching point = 10.0 %
–– Relay 2 upper switching point = 90.0 %
–– Relay 2 lower switching point = 10.0 %
The function of pump control 2 is shown in detail in the following diagram. The previously described example is used as a basis.
Rel. 2: 90% On
Rel. 1: 80% On
Rel. 1, 2: 10% Off
Rel. 1
Rel. 2
On
Off
On
10
30
20
20
5
15
t [h]
Fig. 14: Example of pump control 2
44
VEGAMET 625 • Double channel HART
28970-EN-150129
Off
8 Application examples
Switch on reaction of the pump control 2
When the signal conditioning instrument is switched on, the relays are
at first in a switched-off status. Depending on the input signal and the
switched-on period of the individual relays, the following relay switching conditions can occur after the start procedure:
•
•
•
Option forced changeover
Input signal is higher than the upper switching point -> Relay with
the shortest switch on period is switched on
Input signal is between lower and upper switching point -> Relay
remains switched off
Input signal is smaller than the lower switching point -> Relay
remains switched off
When the level was not changed for a longer period, always the same
pump would have been switched on. Via the parameter "Changeover
time", a time can be preset after which a forced changeover of the
pump is carried out. Which pump will be switched on depends ont he
selected pump mode. If all pumps are already switched on, then the
pump still remains switched on. These function can be only adjusted
via PC and DTM.
Note:
If the pump is already switched on when activating the forced
changeover, the timer will not be started. Only after switching off and
on again, will the timer start. If the switch-off delay is set, it will not
be taken into account, i.e. the changeover is carried out exactly after
the preset time for the forced changeover expires. A preset switch-on
delay, however, is taken into account, i.e. the forced changeover to
another pump is carried out after the preset time expires. Before the
newly selected pump switches on, the preset switch-on delay for this
pump must be expired.
28970-EN-150129
8.5 Tendency recognition
Functional principle
The function of the tendency recognition is to recognize a defined
change within a certain time period and to transfer this information to
a relay output.
Principle of operation
The information for tendency recognition is generated out of the
measured value change per time unit. The output variable is always
the measured value in percent. The function can be configured for
rising and falling tendency. The actual measured value is determined
and summed with a sample rate of asecond. After the max. reaction time, the average value is generated out of this sum. The real
measured value change results then of the newly calculated average
value less the previously calculated average value. If this difference
exceeds the defined percentage value, the tendency recognition
responds and the relay deenergises.
Note:
Activation and configuration of tendency recognition requires PACTware with the suitable DTM. The respective parameters cannot be set
via the integrated display and adjustment unit.
VEGAMET 625 • Double channel HART
45
8 Application examples
Parameter
•
•
•
•
Measured value change higher: Measured value change per
time unit, at which the tendency recognition should respond
Max. reaction time: Time after which a new measured value
generation is carried out and the measured value change is
recalculated
Hysteresis: is automatically always 10 % of the value of "Measured value change larger than"
Reaction in case of failure: In case of a failure, the relaygoes
into the defined condition
Note:
After switching on or a failure, always two complete cycles must be
executed until a measured value difference can be calculated and a
tendency can be outputted.
Example
The level in a basin should be monitored on rising tendency. If the rise
is higher than 25 % per minute, an additional emptying pumpt should
be switched on. The max. reaction time should be one minute. In case
of a probable failure, the pump should be switched off.
Setup
Select in the DTM navigation section the menu items "Meas. loop Outputs - Relay".
•
•
•
E.g. set for relay 1 the mode "Rising tendency"
Select under "Reaction in case of failure" the option "Switching
condition off"
Enter the following values into the parameter fields:
–– Measured value more than 25 %/min.
–– Max. reaction time 1 min.
The function of the tendency recognition is shown in detail in the following diagram. The previously described example is used as a basis.
%
100
tm
tm
tm
tm
5
75
50
25
0
ON
OFF
...
60
1
...
120
...
2
180
...
3
240
...
t [sec]
4
Fig. 15: Example for tendency recognition
46
VEGAMET 625 • Double channel HART
28970-EN-150129
1 Old average value = 25 %, new average value = 25 %
Difference < 25 % -> Relay ON
2 Old average value = 25 %, new average value = 37.5 %
Difference < 25 % -> Relay ON
3 Old average value = 37.5 %, new average value = 62.5 %
Difference = 25 % -> Relay OFF
4 Old average value = 62.5 %, new average value = 75 %
Difference < 25 % -> Relay ON
5 tm -> max. reaction time
8 Application examples
8.6 Flow measurement
Functional principle
For flow measurement in open flumes, a contraction or standardised
flume must be used. Depending on the flow volume, this contraction
generates a certain backwater. The flow can be determined from the
height of this backwater. The flow volume is outputted by an appropriate number of pulseson the relay or current output.
Flume
Depending on the type and version, each flume generates a different
backwater. The data of the following flumes are available in the instrument:
•
•
•
Palmer-Bowlus-Flume
Venturi flume, trapezoidal weir, rectangular weir
Rectangular weir, V-Notch
Setup
The configuration of the flow measurement loop requires PACTware
with the suitable DTMs. The example refers to a flow measurement
with a radar sensor. The following setup steps must be carried out:
•
•
•
•
•
Selection of the parameter "Flow"
Carrying out adjustment
Select flume (linearization)
Set scaling
Parameter adjustment of pulse outputs
Parameter - Flow
Select in the DTM window "Parameter" the option "Flow" withthe
requested unit of measurement.
Adjustment
Min. adjustment: Enter the suitable value for 0 %, i.e. the distance
from the sensor to the medium as long as there is no flow. These are
in the following example 1.40 m.
Max. adjustment: Enter the suitable value for 100 %, i.e. the distance
from the sensor to the medium, with the max. flow volume. This is
0.80 m in the following example.
100% = 0,80m (d) = 400m3/h
28970-EN-150129
0% = 1,40m (d) = 0m3/h
Fig. 16: Adjustment of flow measurement with V-notch
Linearisation curve
Select in the DTM window "Linearization" the option "Flow" and then
the used flume (in the above example V-notch).
VEGAMET 625 • Double channel HART
47
8 Application examples
Scaling
Select in the DTM window "Scaling" under "Parameter" the option
"Flow". Finally the allocation of a value must be carried out, i.e. the
flow volume is assigned to the 0 and 100 % value. As the last step,
select the requested meas. unit. For above example: 0 % = 0 and
100 % = 400, meas. unit m³/h.
Outputs
First of all decide if you want to use a relay and/or a current output. In
the DTM window "Outputs" you can use any of the three outputs as
long as these are not yet used for other tasks.
Finally select under "Mode" (relay) or "Output characteristics"(current
output) the option "Flow volume pulse" or "Sampling pulse". Enter
under "Pulse output all" the flow volume after which a pulse should be
outputted (e.g. 400 m³ corresponds to one pulse per hour with a flow
volume of 400 m³/h).
In mode "Sampling pulse" an additional pulse is outputted after a
defined time. This means that a timer is started after each pulse after
which another pulse is outputted. This applies only if already a pulse
was outputted after exceeding the flow volume.
Due to sludge at the bottom of the flume, it can happen that the min.
adjustment originally carried out can no longer be reached. Therefore
small quantities will continuously enter the flow volume detection
despite the "empty" flume. The option "Min. flow volume suppression"
offers the possibility to suppress measured flow volumes below a
certain percentage value for the flow volume detection.
28970-EN-150129
48
VEGAMET 625 • Double channel HART
9 Maintenance and fault rectification
9 Maintenance and fault rectification
9.1Maintenance
If the instrument is used properly, no special maintenance is required
in normal operation.
9.2 Rectify faults
Reaction when malfunctions occur
The operator of the system is responsible for taking suitable measures to rectify faults.
Causes of malfunction
Maximum reliability is ensured. Nevertheless, faults can occur during
operation. These may be caused by the following, e.g.:
•
•
•
Measured value from sensor not correct
Voltage supply
Interference in the cables
Fault rectification
The first measures to be taken are to check the input and output
signal as well as to evaluate the error messages via the display. The
procedure is described below. Further comprehensive diagnostics
can be carried out on a PC with PACTware and the suitable DTM. In
many cases, the causes can be determined in this way and faults
rectified.
24 hour service hotline
Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. +49 1805 858550.
The hotline is manned 7 days a week round-the-clock. Since we offer
this service worldwide, the support is only available in the English
language. The service is free, only standard call charges are incurred.
Status messages
When the connected sensor is provided with a self-monitoring
according to NE 107, the probably occurring status messages are
passed on and outputted on the VEGAMET indication. Requirement
is that the HART input of the VEGAMET is activated. You can find
further information in the operating instructions manual of the sensor.
1
2
3
4
28970-EN-150129
Fig. 17: Pictographs of the status messages
1Failure
2 Function check
3 Out of specification
4 Maintenance requirement
VEGAMET 625 • Double channel HART
49
9 Maintenance and fault rectification
Fault message
The signal conditioning instrument and the connected sensors are
permanently monitored during operation and the values entered during parameter adjustment are checked for plausibility. If irregularities
occur or in case of incorrect parameter adjustment, a fault signal is
triggered. In case of an instrument defect or line break/shortcircuit, a
fault signal is also triggered.
The fail safe relay deenergises in case of failure, the failure indication lights and the current outputs react according to their configured
control behaviour. In addition, one of the following fault messages is
outputted on the display.
Cause
E003
CRC error (error with –– Carry out a reset
–– Send instrument for repair
self-check)
Rectification
E007
Sensor type not com- –– Search for sensor again and allocate
under "Meas. loop - Input"
patible
E008
Sensor not found
–– Check connection of the sensor
–– Check HART address of the sensor
E011
No HART sensor assigned
–– Assign a sensor in the menu "Input"
E013
Sensor signals error,
no valid measured
value
–– Check sensor parameter adjustment
–– Send sensor for repair
E016
Empty/full adjustment –– Carry out a fresh adjustment
reversed
E017
Adjustment span too
small
–– Carry out a fresh adjustment and
increase the distance between min.
and max. adjustment
E021
Scaling span too
small
–– Carry out a fresh scaling, increase
the distance between min. and max.
scaling.
E026
Units of the input
variable are different (only differential
measurement loop)
–– Adapt the units of both
–– Use sensors with the same input
variable
E030
Sensor in boot phase –– Check sensor parameter adjustment
E034
EEPROM CRC error
–– Switch the instrument off and on
–– Carry out a reset
–– Send instrument for repair
E035
ROM CRC error
–– Switch the instrument off and on
–– Carry out a reset
–– Send instrument for repair
E036
Instrument software
not executable (during software update
and after failed update)
–– Waiting until software update is
finished
–– Carry out another software update
Measured value not
valid
VEGAMET 625 • Double channel HART
28970-EN-150129
50
Error code
9 Maintenance and fault rectification
Reaction after fault rectification
Error code
Cause
E053
–– Communication error: Check sensor
Sensor measuring
cable and screening
range is not read correctly
Rectification
E062
Pulse priority too
small
–– Increase under "Output" the entry
"Pulse output all" so that max. one
pulse per second is outputted.
E110
Relay switching
points too close together
–– Increase the difference between the
two relay switching points
E111
Relay switching
points interchanged
–– Change relay switching points for
"On/Off"
E115
Several relays are as- –– All relays which are assigned to the
pump control must be set to the
signef to the pump
same failure mode
control which are not
set to the same failure mode
E116
Several relays that
are not configured
with the same mode
are assigned to the
pump control
–– All relays which are assigned to the
pump control must be set to the
same mode
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
9.3 How to proceed if a repair is needed
You can find a repair form as well as detailed information on how to
proceed at www.vega.com/downloads and "Forms and certificates".
By doing this you help us carry out the repair quickly and without having to call back for needed information.
If a repair is necessary, please proceed as follows:
•
•
•
28970-EN-150129
•
Print and fill out one form per instrument
Clean the instrument and pack it damage-proof
Attach the completed form and, if need be, also a safety data
sheet outside on the packaging
Please contact the agency serving you to get the address for
the return shipment. You can find the agency on our home page
www.vega.com.
VEGAMET 625 • Double channel HART
51
10 Dismount
10Dismount
10.1 Dismounting steps
Take note of chapters "Mounting" and "Connecting to power supply"
and carry out the listed steps in reverse order.
10.2Disposal
The instrument consists of materials which can be recycled by specialised recycling companies. We use recyclable materials and have
designed the parts to be easily separable.
WEEE directive 2002/96/EG
This instrument is not subject to the WEEE directive 2002/96/EG and
the respective national laws. Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting
points. These may be used only for privately used products according
to the WEEE directive.
Correct disposal avoids negative effects on humans and the environment and ensures recycling of useful raw materials.
Materials: see chapter "Technical data"
If you have no way to dispose of the old instrument properly, please
contact us concerning return and disposal.
28970-EN-150129
52
VEGAMET 625 • Double channel HART
11 Supplement
11Supplement
11.1 Technical data
General data
Series
Module unit with plug-in socket for mounting on carrier
rail (35 x 7.5 according to DIN EN 50022/60715)
Weight
500 g (1.10 lbs)
Housing materials
Noryl SE100, Lexan 920A
Socket materials
Noryl SE100, Noryl SE1 GFN3
Connection terminals
ƲƲ Type of terminal
ƲƲ Max. wire cross-section
Voltage supply
Operating voltage
20 … 253 V AC, 50/60 Hz, 20 … 253 V DC
Max. power consumption
Sensor input
Number of sensors
Type of input (selectable)
12 VA; 7.5 W
1)
ƲƲ Active input
ƲƲ Passive input
Measured value transmission
2 x VEGA HART sensors
Sensor supply through VEGAMET 625
Sensor has an own power supply
ƲƲ HART multidrop protocol
digital for VEGA HART sensors
ƲƲ Non-Ex version
approx. 28 V with 2 sensors (8 mA)
Terminal voltage
ƲƲ Ex version
Current limitation
Adjustment range HART sensor
ƲƲ Adjustment range
ƲƲ min. adjustment delta
approx. 18 V with 2 sensors (8 mA)
approx. 45 mA (26 mA with Ex)
± 10 % of sensor measuring range
0.1 % of sensor measuring range
Connection cable to the sensor
two-wire screened standard cable
Relay outputs
Quantity
3 x operating relay, 1 x fail safe relay
Contact
Floating spdt
Function
28970-EN-150129
Screw terminal
1.5 mm² (AWG 16)
Contact material
Switching voltage
Switching current
1)
Switching relay for level or pulse relay for flow/sampling
pulse
AgSnO2, hard gold-plated
min. 10 mV DC, max. 250 V AC/DC
min. 10 µA DC, max. 3 A AC, 1 A DC
Selection is made via the terminals, a mixed operation active/passive is not possible.
VEGAMET 625 • Double channel HART
53
11 Supplement
Breaking capacity2)
min. 50 mW, max. 750 VA, max. 40 W DC
Min. programmable switching hysteresis 0.1 %
ƲƲ Fault signal (switch over)
Switching condition off; unchanged
ƲƲ Pulse length
350 ms
Mode pulse output
Current outputs
Quantity
3 x outputs
Range
0/4 … 20 mA, 20 … 0/4 mA
Function
Resolution
Max. load
Fault signal (switch over)
Accuracy
Temperature error relating to 20 mA
Mode pulse output
ƲƲ Voltage pulse
ƲƲ Pulse length
Current output for level or flow/sampling pulse
1 µA
500 Ω
0; 3,6; 4; 20; 20.5; 22 mA, unchanged
±20 µA (0.1 % of 20 mA)
0.005 %/K
12 V DC at 20 mA with load 600 Ω
200 ms
Ethernet interface (optional)
Quantity
1 x, cannot be combined with RS232
Plug connection
RJ45
Data transmission
Max. cable length
RS232 interface (optional)
Quantity
Plug connection
Max. cable length
Indicators
Measured value indication
ƲƲ graphic-capable LC display
(50 x 25 mm), with lighting
10/100 MBit
100 m (3937 in)
1 x, cannot be combined with Ethernet
RJ45 (modem connection cable on 9-pole D-SUB in the
scope of delivery)
15 m (590 in)
digital and quasianalogue indication
-99999 … 99999
ƲƲ Status, operating voltage
1 x LED green
ƲƲ Status operating relay 1/2/3
3 x LED yellow
ƲƲ Status, fault signal
ƲƲ Status interface
2)
1 x LED red
1 x LED green
If inductive loads or stronger currents are switched through, the gold plating on the relay contact surface will be
permanently damaged. The contact is then no longer suitable for switching low-level signal circuits.
54
VEGAMET 625 • Double channel HART
28970-EN-150129
ƲƲ Max. indicating range
LED displays
11 Supplement
Operation
Adjustment elements
4 x keys for menu adjustment
PC adjustment
PACTware with respective DTM
Ambient conditions
Ambient temperature
-20 … +60 °C (-4 … +140 °F)
Storage and transport temperature
Electrical protective measures
Protection rating
ƲƲ Instrument
ƲƲ Terminal socket
Overvoltage category
Protection class
-40 … +80 °C (-40 … +176 °F)
IP 30
IP 20
II
II
Electrical separating measures
Reliable separation according to VDE 0106 part 1 between power supply, input and digital component
ƲƲ Reference voltage
ƲƲ Voltage resistance of the isolation
250 V
3.75 kV
Galvanic separation between relay output and digital part
ƲƲ Reference voltage
ƲƲ Voltage resistance of the isolation
250 V
4 kV
Potential separation between Ethernet interface and digital part
ƲƲ Reference voltage
ƲƲ Voltage resistance of the isolation
50 V
1 kV
Potential separation between RS232 interface and digital part
ƲƲ Reference voltage
ƲƲ Voltage resistance of the isolation
50 V
50 V
Approvals
Instruments with approvals can have different technical specifications depending on the version.
For that reason the associated approval documents of these instruments have to be carefully
noted. They are part of the delivery or can be downloaded under www.vega.com via "VEGA Tools"
and "Instrument search" as well as via "Downloads" and "Approvals".
28970-EN-150129
11.2 Overview applications/functionality
The following charts provide an overview of the standard applications and functions of signal conditioning instruments VEGAMET 391/624/625 and VEGASCAN 693. They also give information about
whether the respective function can be activated and adjusted via the integrated indicating and
adjustment unit (OP) or via PACTware/DTM.
VEGAMET 625 • Double channel HART
55
11 Supplement
Application/Function
391
624
625
693
OP3)
Level measurement
•
•
•
•
•
DTM
•
Process pressure measurement
•
•
•
•
•
•
DTM
Instrument version with interface option
391
624
625
693
OP
Set the time
Application/Function
•
•
•
•
•
•
Assign/modify IP-addr./Subnet mask/Gateway addr.
•
•
•
•
•
•
Assign/modify DNS server addr.
•
•
•
•
-
•
Parameter adjustment of PC/DCS output
•
•
•
•
-
•
Web-VV settings
•
•
•
•
-
•
Device trend
•
•
•
•
-
•
Configure transmission of measured values via e-mail
•
•
•
•
-
•
Configure transmission of measured values via SMS
•
•
•
•
-
•
11.3Dimensions
4
5
6
7
8
55 mm (2.17")
ESC
OK
119 mm (4.69")
3
COM
130 mm (5.12")
on
Ser. No.
12345678
9 10
11
12
17 18
20 21 22
13 14
15
16
23 24 25 26 27 28
72 mm (2.84")
28970-EN-150129
1)
2
110 mm (4.33")
87 mm (3.43")
1
Operating Panel (integrated display and adjustment unit)
56
VEGAMET 625 • Double channel HART
11 Supplement
11.4 Industrial property rights
VEGA product lines are global protected by industrial property rights. Further information see
www.vega.com.
Only in U.S.A.: Further information see patent label at the sensor housing.
VEGA Produktfamilien sind weltweit geschützt durch gewerbliche Schutzrechte.
Nähere Informationen unter www.vega.com.
Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellectuelle. Pour plus d'informations, on pourra se référer au site www.vega.com.
VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad industrial. Para mayor información revise la pagina web www.vega.com.
Линии продукции фирмы ВЕГА защищаются по всему миру правами на интеллектуальную
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11.5Trademark
28970-EN-150129
All the brands as well as trade and company names used are property of their lawful proprietor/
originator.
VEGAMET 625 • Double channel HART
57
INDEX
INDEX
A
H
Address setting 13, 17
Adjustment 21, 50
––Max. adjustment 22
––Min. adjustment 22
Application 19
Application area 8
ASCII protocol 38
HART 13, 17, 26
Horizontal cylindrical tank 39
Host name 19
Hotline 49
HTML 35
Hysteresis 40
C
I²C interface 35
Input
––active 12
––HART 19, 21
––Passive 12
Installation possibilities 10
Instrument coding 10
Integration time 23
Interface measurement 21, 42
IP address 19, 35, 38
Cable
––Grounding 12
––Potential equalisation 12
––Shielding 12
Carrier rail mounting 10
Causes of malfunction 49
Current output 24
Cylindrical tank 23
D
Damping 23
Date of manufacture 27
Date setting 20
Default setting 26
Device info 27
Device-TAG 19
DHCP 17, 35
Diagnostics 25
Differential measurement loop 21, 40
Displayed value 25
Dry run protection 24, 39
DTM 8, 17, 24, 38
––DTM Collection 37
––Full version 38
E
E-mail 35, 38
Ethernet 35, 38
Ethernet interface 26
F
G
Gateway address 19
58
L
Level measurement 39
Linearisation curve 23, 39
Linearization 23
Lin. percent 25
M
MAC address 27
Main menu 18
Meas. loop TAG 23
Measured value indication 18
Measured variable 21
Modbus-TCP 38
Modem 36
Mounting 10
Multidrop 17, 26
Multiviewer 38
N
Network 17
O
Online help 27, 38
Operation 8, 37
Overfill protection 6, 24, 39
P
PACTware 8, 17, 24
Parameter adjustment 17
Potential equalisation 12
VEGAMET 625 • Double channel HART
28970-EN-150129
Fault 25
––Fault message 25, 50
––Rectification 49
Flow measurement 24, 47
Fluctuating product surface 23
Functional principle 8
I
INDEX
Primary Value 21
Pump control 43
Weir control 40
WHG 6
R
Recycling 52
Relay 51
Relay output 24
––Fail safe relay 50
Repair 51
Reset 26
RS232 36
––Communication protocol 20
––Connection assignment RS232 modem
connection cable 37
––USB - RS232 adapter 36
RS232 interface 26
S
Scaling 23, 25, 39, 50
Secondary Value 21
Sensor address 26
Sensor input
––active 12
––Passive 12
Sensor search 21
Serial number 7, 8, 27
Service 25
Service hotline 49
Simulation 25
Software update 37
Spherical tank 23
Subnet mask 19
Switching window 24
T
Tank calculation 38
Tendency 24
Tendency recognition 45
Time setting 20
TÜV 6
Type label 7
U
28970-EN-150129
USB
––USB - RS232 adapter 36
V
Visualization 35
W
Web server 38
WEB-VV 26
WEEE directive 52
VEGAMET 625 • Double channel HART
59
All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the information
available at the time of printing.
Subject to change without prior notice
© VEGA Grieshaber KG, Schiltach/Germany 2015
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
Phone +49 7836 50-0
Fax +49 7836 50-201
E-mail: info.de@vega.com
www.vega.com
28970-EN-150129
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