Elster 6 Series User manual

73023470_A_EN
i 2016-02-26
Doc: 10000050191

Page 2 of 31
Wiring Instructions
UFM Series 6
Elster GmbH
Steinern Strasse 19-21
D - 55252 Mainz-Kastel, Germany
Tel.:
[phone]
Fax:
[phone]
E-Mail:
[email protected]

UFM Series 6
Wiring Instructions
Page 3 of 31
Contents
1General Information 5
1.1 About these Instructions 5
1.2 Limitation of Liability 5
1.3 Text Labelling 6
1.3.1 Presentation of Safety and Risk Instructions 6
1.3.2 Paragraph Formats 8
1.3.3 Character Formats 8
2SPU Overview 9
3Installation Instructions 10
4Power Connection (TB1) 12
5Communication Connections 14
5.1 Network (TB2 and J4) 14
5.1.1 Connector TB2 15
5.1.2 Connector J4 (Ethernet RJ45 Connection) 16
5.2 Communication Connector TB3 17
6Switches and LED Indication 20
6.1 Switches on the Field Terminal Board 20
6.1.1 SW1 20
6.1.2 SW2 and SW3 21
6.1.3 SW4 21
6.2 LED Indication on the Display 22
7Optional DSL Modem 22
7.1 Switches 22
7.1.1 DIP Switch 1 23
7.1.2 DIP Switch 2 23
7.1.3 DIP Switch 3 23

Contents
Page 4 of 31
Wiring Instructions
UFM Series 6
7.1.4 DIP Switch 4 24
7.2 LED Indication 24
8IS Connections TB4, TB5 26
9Index 29
Appendix I –References 30

1
General Information
UFM Series 6
Wiring Instructions
Page 5 of 31
1 General Information
1.1 About these Instructions
This document provides detailed information for wiring a Series 6 Ultrasonic
Flow Meter (UFM) from Elster. For general information, please refer to the
Operation and Maintenance Manual for your particular flow meter (latest
valid revision). Before performing any activity on the UFM, please familiarize
yourself with the Safety Instructions. Both of these documents are available
online at http://www.docuthek.com/.
Please also refer to Appendix I –References at the end of this document
for a complete list of UFM Series 6 resources.
1.2 Limitation of Liability
This manual is based on the latest information. It is provided subject to
alterations. We reserve the right to change the construction and/or
configuration of our products at any time without obligation to update
previously shipped equipment.
The warranty provisions stipulated in the manufacturer's Terms of Delivery
are applicable to the product. The manufacturer shall have no obligation in
the event that:
Repair or replacement of equipment or parts has been required
through normal wear and tear, or by necessity in whole or part by
catastrophe, or the fault or negligence of the purchaser;
The equipment, or parts, have been maintained or repaired by other
than an authorized representative of the manufacturer, or have
been modified in any manner without prior express written
permission of the manufacturer;
Non-original parts are used;
Equipment is used improperly, incorrectly, carelessly or not in line
with its nature and/or purpose;

General Information
1
Page 6 of 31
Wiring Instructions
UFM Series 6
Use of this product with unauthorized equipment or peripherals,
including, but not necessarily limited to, cables, testing equipment,
computers, voltage, etc.
The manufacturer is not responsible for the incidental or consequential
damages resulting from the breach of any express or implied warranties,
including damage to property, and to the extent permitted by law, damage
for personal injury.
Read through these Wiring Instructions carefully before beginning
any work.
The manufacturer assumes no liability for loss and malfunctions
that result from non-compliance with these instructions.
We reserve the right to make technical changes within the scope of im-
proving performance characteristics and continuous development of the
device.
Current warranty conditions in the General Terms and Conditions are
available on our website:
http://www.elster-instromet.com/en/general-terms-of-business
1.3 Text Labelling
This manual employs consistent visual cues and standard text formats to
help you easily locate and interpret information. This information will help
you quickly identify relevant content.
1.3.1 Presentation of Safety and Risk Instructions
Hazard Warnings
Hazard warnings indicate hazardous situations which may result in material
damage and bodily harm or even death if disregarded.

1
General Information
UFM Series 6
Wiring Instructions
Page 7 of 31
Hazard warnings are described below:
DANGER WORD!
Type of danger
Consequences in case of non-compliance
Avoiding danger
Safety Instructions
Safety instructions include notes and information which if disregarded may
lead to functions not working correctly or not working at all.
Safety instructions are described below:
Safety instruction (optional)
Safety instruction text
Tips and Recommendations
Tips include notes and information that make it easier for the user. Tips are
described below:
Heading (optional)
Hint text

General Information
1
Page 8 of 31
Wiring Instructions
UFM Series 6
1.3.2 Paragraph Formats
►This triangle prompts you for an action.
This character will show you the immediate result of your action.
Example
Multi-row examples are marked by two continuous blue lines and the
keyword “Example”.
1.3.3 Character Formats
Example
Use
See Chapter 4 Power
Connection (TB1) (p.12)
References to additional information are
marked with an arrow. If the arrow refers to
information within the document, these
references are formatted as hyperlinks in
blue font. You can go directly to the
corresponding section by clicking on the
blue text.
www.docuthek.com
links (Hyperlink)
Table 1: Character formats

2
SPU Overview
UFM Series 6
Wiring Instructions
Page 9 of 31
2 SPU Overview
The SPU box contains two separated compartments; a main and a rear
compartment (see Figure 2-1 and Figure 2-2). The main compartment can
be opened from the side of the SPU and contains the most important circuit
boards. All connections herein are factory set and should not be adjusted on
site. It is strongly advised to only open this compartment after consultation
with Elster.
For all external connections to the meter the connection holes in the bottom
of the rear compartment should be used (see Figure 2-2). Five connection
holes are provided; the thread type can be either M20 or ½” NPT. Unused
Figure 2-1: SPU Compartments
Figure 2-2: Rear Compartment

Installation Instructions
3
Page 10 of 31
Wiring Instructions
UFM Series 6
holes shall be equipped with certified stopping plugs; non-certified plugs
(e.g. used for transport or storage) shall also be replaced by certified plugs.
The client is responsible to provide suitable glands and stopping plugs, with
regards to e.g. thread type, hazardous area certification, ingress protection.
The rear compartment contains the field terminal board (see Figure 2-3). All
connections for external wiring are placed on this PCB, therefore when
connecting to a flow computer only the connection on this PCB should be
used. For long distance network connections an optional DSL modem can
be placed behind the field terminal board.
3 Installation Instructions
Suitable armored shielded cables must be used for wiring the meter
(communication cables should also be twisted), whereby the cables are
protected from mechanical damages as well as electrical interference. In
addition, ensure the length, diameter, core, and resistance of the cables are
an optimal match for the particular application.
For making reliable and durable connections to your UFM it is highly
recommended to use insulated wire end terminals. To avoid cables hanging
in the glands; all cables must be clamped and cleated properly and close to
the UFM connections. The SPU can rotate almost 360°, keep this in mind
when wiring your meter. Ensure the wires can rotate as well, if needed.
Figure 2-3: Field Terminal Board

3
Installation Instructions
UFM Series 6
Wiring Instructions
Page 11 of 31
As the SPU can rotate almost 360°, a stopping pin should be in place to
prevent the SPU from rotating beyond its limits. Please see Figure 3-1.
Before rotating, loosen the three socket screws. Rotation of the SPU should
be smooth. When encountering resistance, stop rotating the SPU and check
Be Aware!
Special attention needs to be taken when the UFM Series 6 must
be installed in accordance with MID. Please see the Operation
and Maintenance Manual of your particular flow meter, latest valid
revision.
For FM and CSA Approved UFM Series 6 Meters, please also
see the related control drawings and installation remarks in the
UFM Series 6 Safety Instructions manual.
Please refer to Appendix I –References for more information
regarding these documents.
Figure 3-1: Rotation of the SPU

Power Connection (TB1)
4
Page 12 of 31
Wiring Instructions
UFM Series 6
if the socket screws are loose enough. When the SPU does not rotate
smoothly please contact Elster or your local representative. After rotating the
SPU, fasten the three socket screws back on.
4 Power Connection (TB1)
In Table 2 an overview is given of the power connections of the Ultrasonic
Flow Meter Series 6. The position of the power connection is stated in Figure
2-3.
Table 2: Power Connections (TB1)
For choosing the correct cable for wiring the power connection, please refer
to the general instruction in Chapter 3 - Installation Instructions (p.10) and
specific instructions in Table 2.
Pin
Number
Signal Name
Description
3
24 VDC
DC power input 24V nominal
2
0 VDC
DC power ground
1*
EARTH
Power earth
*ATTENTION!
In case the ultrasonic flow meter body is connected to a cathodic
protection system, leave pin number 1 unconnected; as in that case
the ‘earth’ of the external power supply should not be connected.

4
Power Connection (TB1)
UFM Series 6
Wiring Instructions
Page 13 of 31
* For a very short period of time the power consumption can be higher at start up
(maximum 40W)
Table 3: Power Connection, Wire Specification
When wiring the meter ensure all requirements are fulfilled. In case of
accidental overvoltage the UFM contains built-in surge protection.
WARNING!
For compliance with EN-IEC 61010 (also harmonized under EU
Low Voltage directive 2006/95/EC) the SPU requires an external
power supply, limited-energy (< 30 Vdc max. 8A), and reinforced
insulation between input and output by the safety transformer and
appropriate distance between components on the PCB.
Do not open the rear compartment when device is energized.
For choosing the correct wires, ensure they are capable of
providing a maximum power of 40 Watts, to avoid startup
problems with the meter.
Depending on the switch ‘SW4’ it is also possible to power the meter through
the Ethernet connections.
For more detailed information please see Chapters 5.1.1 - Connector TB2
(p.15) and 6.1.3 - SW4 (p. 21).
Power Connection
Wire Specification
Maximal cable core
2.5 mm2
Maximal cable length
700 m
(max. 5 ohm / wire)
Voltage at the field terminal board
18 –30 VDC
(24 V nominal)
Nominal power consumption*
20 Watt

Communication Connections
5
Page 14 of 31
Wiring Instructions
UFM Series 6
5 Communication Connections
This chapter provides detailed information on communication wiring of the
Ultrasonic Flow Meter Series 6. For choosing the correct cables, do not only
follow the specifications in this chapter, but also refer to Chapter 3
Installation Instructions (p.10).
Elster recommends to only wire those connections that will be used. Wires
that are connected to the field terminal board but not connected to the flow
computer can cause communication issues.
5.1 Network (TB2 and J4)
With the Elster software program SonicExplorer it is possible to perform
parameterizations on the meter. Software packages are only able to connect
with the meter through a network connection. This network connection can
be either Ethernet or DSL.
It is only possible to connect through DSL when the field terminal board is
equipped with the optional DSL modem print board (see Figure 5-1). Using
DSL it is possible to get a network communication over a total maximum
length of 1 km.
Figure 5-1: Optional DSL Modem Print Board

5
Communication Connections
UFM Series 6
Wiring Instructions
Page 15 of 31
When connecting through DSL, certain switches on the field terminal board
need to be aligned, as seen in Chapter 6.1.2 - SW2 and SW3 (p.21). With
the switches on the DSL modem itself, it is possible to fine-tune the quality of
the communication. Please see Chapter 7 - Optional DSL Modem (p.22).
5.1.1 Connector TB2
Table 3 shows an overview of the connections on TB2. Maximum cable core
is 1.5 mm².
When connecting the communication through these connectors, the J4
connector should be left disconnected. See Chapter 5.1.2 - Connector J4
(Ethernet RJ45 Connection) (p.16).
* Only possible with the optional DSL modem print board
** Power over Ethernet (POE) requires an external power supply, limited-energy (max. 48
Vdc max. 3 A), reinforced insulation is provided between input and output by safety
transformer and distances on PCB. Power over Ethernet complies with IEEE 802.3af
*** Cable must be UTP, STP or FTP with category 5E or 6. Maximum cable length is 100
meters.
Table 4: Communication Connector, TB2
Pin number
Signal name
Description
10
VDSL -
DSL - *
9
VDSL +
DSL + *
8
PoE -
Power over Ethernet (Power -) **
7
PoE -
Power over Ethernet (Power -) **
6
RX-
Ethernet receive - ***
5
PoE +
Power over Ethernet (Power +) **
4
PoE +
Power over Ethernet (Power +) **
3
RX+
Ethernet receive + ***
2
TX-
Ethernet transmit - ***
1
TX+
Ethernet transmit + ***

Communication Connections
5
Page 16 of 31
Wiring Instructions
UFM Series 6
5.1.2 Connector J4 (Ethernet RJ45 Connection)
Table 5 shows an overview of the connections on J4.
When connecting the communication through this connector, the TB2
connectors should be left disconnected. See Chapter 5.1.1 - Connector
TB2 (p.15).
Pin Number
Signal name
Description
8
Unused / PoE Power -
RJ45 Power over Ethernet
(Power -) *
7
Unused / PoE Power -
RJ45 Power over Ethernet
(Power -) *
6
Receive - / PoE Receive
-
RJ45 Ethernet receive - **
5
Unused / PoE Power +
RJ45 Power over Ethernet
(Power +) *
4
Unused / PoE Power +
RJ45 Power over Ethernet
(Power +) *
3
Receive + / PoE Receive
+
RJ45 Ethernet receive + **
2
Transmit - / PoE Transmit
-
RJ45 Ethernet transmit - **
1
Transmit + / PoE
Transmit +
RJ45 Ethernet transmit + **
* Power over Ethernet (POE) complies with IEEE 802.3af. It requires an external
power supply, limited-energy (max. 48 Vdc max. 3 A), reinforced insulation is provided
between input and output by safety transformer and distances on PCB.
** Cable must be UTP, STP or FTP with category 5E or 6. Maximum cable length is
100 meter.
Table 5: Communication Connector, J4

5
Communication Connections
UFM Series 6
Wiring Instructions
Page 17 of 31
5.2 Communication Connector TB3
Besides a network connection, the Ultrasonic Flow Meter Series 6 is capable
of communicating through:
Serial communication (either RS232 or RS485), protocol U_DATA
or ModBus
oCable cross-sectional size area (CSA) min 0.5 mm²
oRS232: 3 x 2 cable max. 15m and 2.5ohm/wire
oRS485: 2 x 2 cable max. 700m
Frequency output
oExternally powered: 24 VDC, 10 kOhm pull-up resistor
(max 30VDC @ 12mA)
oRange programmable up to 5kHz
oPossible outputs can be selected with SonicExplorer
Analogue output
oInternally powered (active): 24VDC, 40 mA maximum
oPossible outputs can be selected with SonicExplorer.
Digital output
oExternally powered: 24 VDC, 10 kOhm pull-up resistor
oCan be set as ‘Low frequency’ or as a status output
(e.g. data valid, flow direction)
oPossible outputs can be selected with SonicExplorer.
All these communication possibilities are located on the TB3 connector.
Maximum cable core is 1.5 mm². Table 6 shows an overview of the
connections.

Communication Connections
5
Page 18 of 31
Wiring Instructions
UFM Series 6
Pin Number
Signal Name
Description
14
D/I_RET2
Digital output 2 / current output 2 return
13
D/I_OUT2
Digital output 2 (open collector) / current
output 2
12
D/I_RET1
Digital output 1 / current output 1 return
11
D/I_OUT1
Digital output 1 (open collector) / current
output 1
10
FRET2
Frequency output 2 (return)
9
FOUT2
Frequency output 2 (open collector)
8
FRET1
Frequency output 1 (return)
7
FOUT1
Frequency output 1 (open collector)
6
RXD COM2
Serial port 2 RS232 receive / RS485 B
5
GND COM2
Serial port 2 RS232 ground
4
TXD COM2
Serial port 2 RS232 transmit / RS485 A
3
RXD COM1
Serial port 1 RS232 receive / RS485 B
2
GND COM1
Serial port 1 RS232 ground
1
TXD COM1
Serial port 1 RS232 transmit / RS485 A
Table 6: Field Terminal Board, TB3
TB3 is factory set according to Elster’s standard settings (see Table 7
below), unless for a specific order other settings have been agreed upon.
The user can change the settings using the SonicExplorer software through
a network connection. See Chapter 5.1 Network (TB2 and J4) (p.14) for
more information.

5
Communication Connections
UFM Series 6
Wiring Instructions
Page 19 of 31
* It is also possible to ‘link’ the second frequency to the first, then it has the same output,
only 90° phase shifted.
Table 7: Standard factory settings of communication connector TB3
Factory settings can be changed by using the software package
SonicExplorer. Communication between the meter and SonicExplorer can
only be made through a network connection. Please see Chapter 5.1 -
Network (TB2 and J4) (p.14).
Pin Number
Signal name
Description
13 - 14
Digital output 2
Flow direction
Open: Flow direction positive
Closed: Flow direction negative
11 - 12
Digital output 1
Partial Failure
Open: Performance of at least
one path is below 10%
Closed: Performance of all paths
are above 10%
9 - 10
Frequency output
2*
Q-line Reverse flow, 0 –3000 Hz
7 - 8
Frequency output
1
Q-line Positive flow, 0 –3000 Hz
4 - 6
Serial comm. 2
RS 485, U_DATA, Baudrate 4800
1 - 3
Serial comm. 1
RS 485, ModBus RTU, Baudrate
9600

Switches and LED Indication
6
Page 20 of 31
Wiring Instructions
UFM Series 6
6 Switches and LED Indication
6.1 Switches on the Field Terminal Board
The field terminal board contains four switches, SW1 to SW4 (see Figure
6-1) to control communication lines and power input.
6.1.1 SW1
This switch is placed for the line termination of the serial communication
lines (see Table 6).
Every transmission line has to be terminated with the right impedance.
Certainly with long lines, like with RS 485 connections, a correct line
termination is important. In transmission lines without termination, the signal
reflects at the end of the cable. This reflection interferes with the original
signal so a cacophony of signals is seen at the receiver.
Figure 6-1: Switches on the Field Terminal Board
SW2
SW3
SW1
SW4