This manual should support during the installation of the NXA20 units. It deals with the
mechenical, electrical and signal line installation. The first commisioning steps are described
as well.
Beside basic PC operating knowledge no special training is needed to perform the Tank
Gauging System operations. Nevertheless it is recommended receiving a training on the
system by Endress+Hauser.
1.2Version history
Document versionValid for SW versionChanges to the previous version
BA01335G/00/EN/01.141.1.0Initial version
1.3Document function
1.3.1Used symbols
Safety symbols
SymbolMeaning
DANGER!
A0011189-EN
A0011190-EN
A0011191-EN
A0011192-EN
Electrical symbols
SymbolMeaning
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011197
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
A0011198
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
A0011200
system.
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
A0011199
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in serious or fatal injury.
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in serious or fatal injury.
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in minor or medium injury.
NOTICE!
This symbol contains information on procedures and other facts which do not result
in personal injury.
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
• Trained, qualified specialists: must have a relevant qualification for this specific function
and task
• Are authorized by the plant owner/operator
• Are familiar with federal/national regulations
• Before beginning work, the specialist staff must have read and understood the instructions
in the Operating Instructions and supplementary documentation as well as in the
certificates
(depending on the application)
• Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
• Being instructed and authorized according to the requirements of the task by the facility's
owner operator
• Following the instructions in these Operating Instructions
2.2IT security
We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any
inadvertent changes to the device settings.
IT security measures in line with operators' security standards and designed to provide
additional protection for the device and device data transfer must be implemented by the
operators themselves.
2.3Designated use
2.3.1Application
The Tankvision Gauge Link is a tank gauging protocol converter to allow integration of third
party gauging equipment into the Tankvision system. The Tankvision Gauge Link is available
with a range of different field bus interface options. Most field bus interfaces will support
connection of a number of gauges in a “multi-drop” or bus configuration. The number of
gauges which may be configured in the Tankvision Gauge Link is limited to 32 (limited to 15
when used in combination with NXA820), which should be adequate for most typical tank
gauging field busses, however electrical and / or protocol limitations may reduce this
number. The functionality which obtains will be determined by that offered by the connected
gauge(s) and the interface / protocol.
Connection to the host system is via EIA/TIA-485 (formerly RS-485) Modbus. This is
primarily intended for “one-to-one” connection with the Tankvision Tank Scanner or similar
device.
The Tankvision Gauge Link must only be used in “safe” areas where there is no hazard from
the presence of potentially explosive or flammable atmospheres.
The Tankvision Gauge Link has not been assessed in respect of functional safety.
Accordingly it is not intended to be used as a safety critical component or part of a safety
critical system or in the implementation of any safety function.
6Endress+Hauser
Tankvision Gauge LinkBasic safety instructions
2.4Workplace safety
For work on and with the device:
• Wear the required personal protective equipment according to federal/national
regulations.
• Switch off the supply voltage before connecting the device.
2.5Operational safety
Risk of injury!
• Operate the device in proper technical condition and fail-safe condition only.
• The operator is responsible for interference-free operation of the device.
• In normal operation the Tankvision Gauge Link contains hazardous voltages. Connectors
on the front panel, accessible behind the front cover / door are “touchproof”, but care
must be exercised when carrying out service work with the door open. The unit must not
be operated with any other cover removed.
• If (or it is suspected that) any liquid or conductive object or debris has entered the
enclosure of the Tankvision Gauge Link, the mains supply to the equipment must
immediately be isolated.
Proper operation of the Tankvision Gauge Link is dependent upon correct installation and
configuration. The equipment must be operated and maintained by suitably trained and
competent personnel who are aware of and fully understand the instructions provided
herein.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers
• If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability,
• Carry out repairs on the device only if they are expressly permitted.
• Observe federal/national regulations pertaining to repair of an electrical device.
• Use original spare parts and accessories from Endress+Hauser only.
The Tankvision Gauge Link contains no user-serviceable parts. Other than the mains supply
fuse, the Tankvision Gauge Link contains no user replaceable parts. Any modification or
repair work must only be performed by the manufacturer or its authorised agents.
2.6Product safety
The device is designed to meet state-of-the-art safety requirements, has been tested and left
the factory in a condition in which it is safe to operate. The device complies with the
applicable standards and regulations as listed in the EC declaration of conformity and thus
complies with the statutory requirements of the EG directives. Endress+Hauser confirms the
successful testing of the device by affixing to it the CE mark.
Order code: NXA20
Ext. ord. cd.:
Ser.-No.:XXXXXXXXXXX
-XXXX/XXX
NXA20-XXXXXXXX
-40°C (-40°F)
£
T60°C (140°F)£
amb
1 2
345
6
8
9
10
11
12
13
14
7
3Identification
3.1Product identification
The following options are available for identification of the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All information about the measuring device is
displayed.
For an overview of the technical documentation provided, enter the serial number from the
nameplates in the W@M Device Viewer (www.endress.com/deviceviewer)
3.2Nameplate
1Address of manufacturer
2Device name
3Order code
8Endress+Hauser
4Extended order code (Ext. ord. cd.)
5Serial number (Ser. no.)
6Data Matrix Code
7Degree of protection
8Technical data of the Serial Service port
9Barcode
10CE mark
11Admissible ambient temperature
12Type of fieldbus communication (output)
13Type of fieldbus communication (input)
14Supply voltage
nameplate_NXA20
Tankvision Gauge LinkIdentification
1.
2.
1.
2.
1.
2.
3.3Order code and device version
To find out the version of your device, enter the order code indicated on the nameplate
in the search screen at the following address: www.products.endress.com/order-ident
3.4Device documentation
The information required to retrieve the documentation can be found on the nameplate of
the device.
Technical documentation can also be downloaded from the Download Area of the
Endress+Hauser web site: www.endress.com→ Download. However this technical
documentation applies to a particular instrument family and is not assigned to a
specific device.
3.4.1W@M Device Viewer
Launch the W@M Device Viewer: www.endress.com/deviceviewer
Enter the serial number (Ser. no.) of the device: see nameplate.
All the associated documentation is displayed.
3.4.2Endress+Hauser Operations App
The Endress+Hauser Operations App is available both for android smart phones
(Google Play Store) and for iPhones and iPads (App Store).
Via the serial number:
Launch the Endress+Hauser Operations App.
Enter the serial number (Ser. no.) of the device: see nameplate.
All the associated documentation is displayed.
Via the 2-D matrix code (QR code):
Launch the Endress+Hauser Operations App.
Scan the 2-D matrix code (QR code) on the nameplate.
All the associated documentation is displayed.
3.5Registered trademarks
Microsoft®, Windows® and Internet Explorer
Registered trademarks of the Microsoft Corporation
Modbus
®
Registered trademark of the Modbus-IDA, Hopkinton, MA, USA
®
Java
Registered trademark of Sun Microsystems, Inc.
®
Mozilla
®
Firefox
®
Registered trademark of the Mozilla Foundation
Enraf, Honeywell, Rosemount, Emerson, Saab, L&J, VAREC, GPE are registered trademarks
and trademarks of these organizations and companies.
All other marks are property of their respective owners.
Endress+Hauser9
Technical specificationTankvision Gauge Link
4Technical specification
4.1Environmental conditions
The Tankvision Gauge Link enclosure is rated IP20 to BS EN 60529. Further protection
against dust and water/moisture ingress must be provided by the location in which the
Tankvision Gauge Link is installed.
PropertySpecification
Operating Temperature-40 to +60 °C (-40 to +140 °F)
Storage Temperature-40 to +85 °C (-40 to +185 °F)
Relative humiditymax 90 % at +25 °C (+77 °F), non-condensing
4.2Electrical ratings
PropertySpecification
Supply voltage90 to 250 V
Frequency50 / 60 Hz
Power23 VA
OvervoltageCategory II
AC
Fuse (mains supply)T 400 mA HBC 250V AC, 20 x 5 mm (0,79 x 0,2 in)
10Endress+Hauser
Tankvision Gauge LinkInstallation
43 (1.7)
35 (1.4)
104 (4.1)
91 (3.6)
140 (5.5)
mm (in)
5Installation
5.1Mechanical installation/mounting
Prior to installation, visually inspect the Tankvision Gauge Link for any signs of damage.
Confirm that the type label shows the correct field bus interface for the intended application.
The Tankvision Gauge Link must only be installed in a “safe” area where there is no hazard
from the presence of potentially explosive or flammable atmospheres.
The Tankvision Gauge Link must be installed in a cabinet or similar enclosure which provides
protection against dust and water ingress. The location must also provide protection against
moisture or the formation of condensation.
Ensure that the temperatures likely to be encountered at the installation location lie within
the relevant minimum /maximum operating and storage temperature ratings of the
Tankvision Gauge Link.
The Tankvision Gauge Link should not be installed near to high voltage circuits or to cables
feeding motors or other high current loads, or near to contactors, variable frequency drives,
inverters or frequency converters or other switchgear / controlgear which may emit
significant electromagnetic interference.
A clear space of about 50 mm (1.97 in) above and below the Tankvision Gauge Link
enclosure should be allowed for ventilation. A gap of 10 mm (0.39 in) to either side of the
Tankvision Gauge Link will ease mounting and opening of the front cover of the enclosure.
The enclosure of the Tankvision Gauge Link is intended to be mounted onto “top hat” DIN
rail, T35 to BS EN 60715 (or BS 5584 / EN 50022 / DIN 46277-3). The rail should be
mounted on a vertical surface, with the rail running horizontally, so that the Tankvision
Gauge Link connection plate / access cover is to the front and in a readily accessible location.
To attach the Tankvision Gauge Link to the mounting rail, first hook the enclosure over the
top of the rail, then turn downwards until the spring clip on the back of the enclosure latches
onto the lower edge of the mounting rail (fig. A below).
Endress+Hauser11
GaugeLink_Dimensions
InstallationTankvision Gauge Link
A
B
1.
2.
1.
2.
EN 60715
TH 35x7.5/15
(1.4x0.3/0.6)
mm (in)
2.
1.
L00-FMU90xxx-17-00-00-xx-002
A Attaching the instrument to the rail
B Detaching the instrument from the rail
To remove the Tankvision Gauge Link from the mounting rail (fig. B above), first push the
enclosure upwards against the spring clip until the body of the enclosure is released from the
top of the rail, then turn the enclosure forwards, away from the mounting rail.
All electrical connections and controls are available on the front panel of the Tankvision
Gauge Link in the terminal compartment, accessed by opening the front cover / door. This is
hinged at the left and clicks shut. Press on the arrowed area at the right side of the door to
release and open.
12Endress+Hauser
GaugeLink_Open-Door
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