Vega VEGAMET 625 User manual

Operating Instructions
VEGAMET 625
Double channel HART signal conditioning instrument
Document ID:
28970
Signal
conditioning instruments
and communication

Contents
1About this document
1.1Function.................................. 4
1.2Target group .............................. 4
1.3Symbolism used............................ 4
2For your safety
2.1Authorised personnel ........................ 5
2.2Appropriate use ............................ 5
2.3Warning about misuse ....................... 5
2.4General safety instructions . . . . . . . . . . . . . . . . . . . . 5
2.5Safety label on the instrument . . . . . . . . . . . . . . . . . . 6
2.6CE conformity ............................. 6
2.7Safety instructions for Ex areas . . . . . . . . . . . . . . . . . 6
2.8Overfill protection according to WHG . . . . . . . . . . . . . 6
2.9Environmental instructions..................... 6
3Product description
3.1Structure ................................. 7
3.2Principle of operation ........................ 8
3.3Configuration .............................. 8
3.4Packaging,transport and storage ............... 9
4Mounting
4.1General instructions ......................... 10
4.2Mounting instructions ........................ 10
5Connecting to power supply
5.1Preparing the connection ..................... 12
5.2Connection procedure........................ 12
5.3Wiring plan................................ 14
6Setup with the integrated indicating and adjustment unit
6.1Adjustment system .......................... 16
6.2Setup steps ............................... 17
6.3Menu schematic ............................ 29
7Setup with PACTware
7.1Connecting the PC .......................... 37
7.2Parameter adjustment with PACTware . . . . . . . . . . . . 40
7.3Setup web server/e-mail,remote enquiry . . . . . . . . . . 41
8Application examples
8.1Level measurement in a cylindrical tank with overfill
protection/dry run protection . . . . . . . . . . . . . . . . . . . 42
8.2Weir control of a water power station. . . . . . . . . . . . . 43
8.3Interface measurement with VEGAFLEX 67 . . . . . . . . 45
8.4Pump control 1/2(running time controlled) . . . . . . . . . 47
8.5Tendency recognition ........................ 49
2VEGAMET 625 •Double channel HART signal conditioning instrument
Contents
28970-EN-110801

8.6Flow measurement .......................... 50
9Maintenance and fault rectification
9.1Maintenance .............................. 53
9.2Fault rectification ........................... 53
9.3Instrument repair ........................... 56
10 Dismounting
10.1Dismounting steps .......................... 57
10.2Disposal ................................. 57
11 Supplement
11.1Technical data ............................. 58
11.2Overview applications/functionality............... 62
11.3Dimensions ............................... 64
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:2011-07-06
VEGAMET 625 •Double channel HART signal conditioning instrument 3
Contents
28970-EN-110801

1About 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.
1.2Target group
This operating instructions manual is directed to trained qualified
personnel.The contents of this manual should be made available to
these personnel and put into practice by them.
1.3Symbolism 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.
lList
The dot set in front indicates a list with no implied sequence.
àAction
This arrow indicates a single action.
1Sequence
Numbers set in front indicate successive steps in a procedure.
4VEGAMET 625 •Double channel HART signal conditioning instrument
1About this document
28970-EN-110801

2For your safety
2.1Authorised 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.
2.2Appropriate use
VEGAMET 625 is a universal signal conditioning instrument and power
supply unit for connection of two HART sensors.
You can find detailed information on the application range 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.
2.3Warning about misuse
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.
2.4General safety instructions
This is a high-tech instrument requiring the strict observance of
standard regulations and guidelines.The user must take note of the
safety instructions in this operating instructions manual,the country-
specific installation standards as well as all prevailing safety
regulations and accident prevention rules.
The instrument must only be operated in a technically flawless and
reliable condition.The operator is responsible for 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.
VEGAMET 625 •Double channel HART signal conditioning instrument 5
2For your safety
28970-EN-110801

2.5Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6CE conformity
This device fulfills the legal requirements of the applicable EC
guidelines.By attaching the CE mark,VEGA provides a confirmation
of successful testing.You can find the CE conformity declaration in the
download area of www.vega.com.
2.7Safety 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.
2.8Overfill protection according to WHG
InGermany 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".
2.9Environmental 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 fulfil this obligation by observing the environmental
instructions in this manual:
lChapter "Packaging,transport and storage"
lChapter "Disposal"
6VEGAMET 625 •Double channel HART signal conditioning instrument
2For your safety
28970-EN-110801

3Product description
3.1Structure
The scope of delivery encompasses:
lVEGAMET 625 signal conditioning instrument
lTerminal socket
lCoded pins and bridges
lRS232 modem connection cable (optional)
lDocumentation
-this operating instructions manual
-Supplementary instruction 30325 "RS232/Ethernet connec-
tion"(optional)
-Supplementary instructions manual 30768 "Modbus-TCP,
VEGA ASCII protocol"(optional)
-Ex-specific"Safety instructions"(with Ex versions)
-if necessary,further certificates
The VEGAMET 625 consists of the components:
lVEGAMET 625 signal conditioning instrument with indicating and
adjustment unit in the front
lTerminal socket
VEGAMET
1 2 3 4
9 10 11 12
17 18 20 21 22
5 6 7 8
13 14 15 16
23 24 25 26 27 28
Ser. No.
12345678
on
OK ESC
COM
3
2
1
2
3
4
1
6
5
Fig.1:VEGAMET 625
1Ex separating chamber with Ex version
2VEGAMET 625
3Indicating and adjustment unit
4Communication interface for VEGACONNECT (I²C)
5RS232 or Ethernet interface (optional)
6Terminal socket
The type label contains the most important data for identification and
use of the instrument:
lArticle number
lSerial number
lTechnical data
Scope of delivery
Constituent parts
Type label
VEGAMET 625 •Double channel HART signal conditioning instrument 7
3Product description
28970-EN-110801

lArticle numbers,documentation
The serial number allows you to access the delivery data of the
instrument via www.vega.com,"VEGA Tools"and "serial number
search".
3.2Principle 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.
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.
Wide-range power supply unit with 20 …253 V AC/DC for world-wide
use.
Detailed information about the power supply can be found in chapter
"Technical data".
3.3Configuration
The instrument can be adjusted with the following adjustment media:
lWith integrated indicating and adjustment unit
lan 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.
Application area
Functional principle
Voltage supply
8VEGAMET 625 •Double channel HART signal conditioning instrument
3Product description
28970-EN-110801

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 indicating and adjustment unit.When
using an adjustment software,you either need one of the integrated
interfaces (RS232/Ethernet)or the interface converter VEGA-
CONNECT.
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".
3.4Packaging,transport and storage
The device was protected by packaging during transport.Its capacity
to handle normal loads during transport is assured by a test according
to DIN EN 24180.
The packaging of standard instruments consists of environment-
friendly,recyclable cardboard.For special versions,PE foam or PE foil
is also used.Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out under consideration of the notes on the
transport packaging.Nonobservance of these instructions can cause
damage to the device.
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.
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:
lNot in the open
lDry and dust free
lNot exposed to corrosive media
lProtected against solar radiation
lAvoiding mechanical shock and vibration
lStorage and transport temperature see chapter "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
VEGAMET 625 •Double channel HART signal conditioning instrument 9
3Product description
28970-EN-110801

4Mounting
4.1General instructions
Each series 600 instrument consists of the actual signal conditioning
instrument as well as a plug-in socket for carrier rail mounting.
Because it has protection class IP 30 or IP 20,the instrument is
intended to be used in switching cabinets.
4.2Mounting instructions
The plug-in socket is designed for carrier rail mounting according to
EN 50022.The operating voltage is connected to terminals 17 and 18.
For neighbouring series 600 instruments it is possible to continue
connection L1and Ndirectly 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 L1and 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.
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.
Installation possibilities
Installation
Instrument coding
10 VEGAMET 625 •Double channel HART signal conditioning instrument
4Mounting
28970-EN-110801