GESTRA LRG 16-60 Installation instructions

Original Installation & Operating
Manual
Conductivity Electrodes
LRG 16-60
LRG 16-61
LRG 17-60
819878-00
EN
English

2LRG 1x-6x - Installation & Operating Manual - 819878-00
Contents
Content of this Manual................................................................................................................................... 4
Scope of delivery/Product package............................................................................................................... 4
How to use this Manual.................................................................................................................................. 5
Illustrations and symbols used...................................................................................................................... 5
Hazard symbols in this Manual...................................................................................................................... 5
Types of warning ............................................................................................................................................ 6
Specialist terms/Abbreviations...................................................................................................................... 7
Usage for the intended purpose..................................................................................................................... 8
Applicable directives and standards...........................................................................................................8
Admissible system components, dependent on the required safety level....................................................9
Improper use ................................................................................................................................................ 10
Basic safety notes ........................................................................................................................................ 11
Required personnel qualifications............................................................................................................... 12
Notes on product liability............................................................................................................................. 12
Functional safety, safety integrity level (SIL) .............................................................................................. 13
Check the safety function regularly..........................................................................................................13
Reliability data as per EN 61508 .................................................................................................................. 14
Function ........................................................................................................................................................ 15
Technical data .............................................................................................................................................. 18
Name plate/Identification ............................................................................................................................ 21
Factory settings............................................................................................................................................ 23
Overall view .................................................................................................................................................. 24
LRG 16-60............................................................................................................................................... 24
LRG 16 -61.............................................................................................................................................. 24
LRG 17-60............................................................................................................................................... 24
Dimensions of LRG 16-60............................................................................................................................. 26
Dimensions of LRG 17-60............................................................................................................................. 27
Dimensions of LRG 16-61............................................................................................................................. 28
Installation.................................................................................................................................................... 29
Additional installation notes ..................................................................................................................... 30
Example LRG 1x-60.................................................................................................................................31
Installation examples with dimensions....................................................................................................... 33
Conductivity measurement ......................................................................................................................33
Conductivity measurement and continuous blowdown control.................................................................. 34
Conductivity measurement and continuous blowdown control via a separate measuring vessel............... 35
Key Fig. 14 to Fig. 16............................................................................................................................... 36
Aligning the terminal box............................................................................................................................. 36

3LRG 1x-6x - Installation & Operating Manual - 819878-00
Contents
Functional elements............................................................................................................................. 37
Connecting the CAN bus system.................................................................................................................. 38
Bus line, cable length and cross-section .................................................................................................. 38
Example ..................................................................................................................................................38
Important notes on connecting the CAN bus system................................................................................. 39
Bringing into service .................................................................................................................................... 40
Changing the factory settings if necessary............................................................................................... 40
Notes on changing communication parameters “bd.rt, Id.Hi or GrP”......................................................... 42
Changing the baud rate ...........................................................................................................................42
Changing the limiter ID ............................................................................................................................ 42
Changing the controller group .................................................................................................................43
Changing the alarm limit value of the limiter function............................................................................... 43
Changing the cell constant....................................................................................................................... 44
Changing the temperature coefficient ...................................................................................................... 44
Using the “CAL” function..........................................................................................................................45
Using the “FiLt” function.......................................................................................................................... 46
Changing the scaling of 4 - 20 mA actual output at LRR 1-60.................................................................. 46
Changing the unit of the display value (µS/cm or ppm).............................................................................47
Triggering a display test manually............................................................................................................ 47
Comparing the measured value with the reference measurement of a reliable sample............................. 48
Checking the alarm limit value Al.Hi by triggering a test function..............................................................48
Lockout function...................................................................................................................................... 48
Start, operation, alarm and test ................................................................................................................... 49
System errors ............................................................................................................................................... 53
Causes ....................................................................................................................................................53
Indication of system malfunctions using fault codes................................................................................. 54
Errors without shutoff .............................................................................................................................. 56
Checking installation and function ...........................................................................................................57
Taking out of service/Disassembly.............................................................................................................. 58
Cleaning the conductivity electrode ............................................................................................................ 59
Monthly comparison of the measured values ..........................................................................................59
Cleaning interval...................................................................................................................................... 59
Disposal ........................................................................................................................................................ 60
Returning decontaminated equipment........................................................................................................ 60
EU Declaration of Conformity....................................................................................................................... 61

4LRG 1x-6x - Installation & Operating Manual - 819878-00
Content of this Manual
Product:
 Conductivity electrode LRG 16-60
 Conductivity electrode LRG 16-61
 Conductivity electrode LRG 17-60
First edition:
BAN 819878-00/08-2019cm
© Copyright
All rights reserved. Any misuse, particularly reproduction and dissemination to third parties, is not permitted.
The General Terms & Conditions of GESTRA AG apply.
Scope of delivery/Product package
 1 x Conductivity electrode LRG 1x-6x
 1 x Sealing ring, D 33 x 39, form D, DIN 7603-2.4068, bright annealed
 1 x Installation & Operating Manual
Accessories
 1 x M12 CAN bus connector, 5-pole, A-coded, with 120 Ωterminating resistor

5LRG 1x-6x - Installation & Operating Manual - 819878-00
How to use this Manual
This Installation & Operating Manual describes how to correctly use LRG 16-60/LRG 16-61/LRG 17-60
conductivity electrodes. It applies to persons who integrate this equipment in control systems, install,
bring into service, operate, maintain and dispose of this equipment. Anyone carrying out the above-men-
tioned activities must have read this Installation & Operating Manual and understood its contents.
 Read this Manual in full and follow all instructions.
 Please also read the instructions for use of any accessories.
 The Installation & Operating Manual is part of the equipment package. Keep it in an easily accessible
location.
Availability of this Installation & Operating Manual
 Make sure this Installation & Operating Manual is always available to the operator.
 If you pass on or sell the equipment to a third party, please also hand over the Installation & Operating
Manual.
Hazard symbols in this Manual
Danger zone/Dangerous situation
Illustrations and symbols used
1. Action to be taken
2.
 Lists
 Bullet points in lists
A Keys to illustrations
Additional
information
Read the relevant
Installation & Operating Manual

6LRG 1x-6x - Installation & Operating Manual - 819878-00
Types of warning
DANGER
Warning of a dangerous situation that results in death or serious injury.
WARNING
Warning of a dangerous situation that may possibly result in death or serious injury.
CAUTION
Warning of a situation that may result in minor or moderate injury.
ATTENTION
Warning of a situation that results in damage to property or the environment.

7LRG 1x-6x - Installation & Operating Manual - 819878-00
Specialist terms/Abbreviations
Here, we explain some abbreviations, specialist terms, etc., which are used in this Manual.
IEC 61508
International standard IEC 61508 describes both the type of risk assessment and actions taken to provide
appropriate safety functions.
SIL (safety integrity level)
Safety integrity levels SIL 1 to 4 are used to quantify risk reduction. SIL 4 is the highest level of risk reduction.
International standard IEC 61508 forms the basis for establishing, testing and operating technical safety
systems.
CAN (Controller Area Network) bus
Data transmission standard and interface for connecting electronic equipment,sensors and control systems.
Data can be sent and received.
LRG .. / URS .. / URB .. / SRL .. / NRG .. / etc.
Equipment and type designations of GESTRA AG, see page 9.
SELV
Safety Extra Low Voltage

8LRG 1x-6x - Installation & Operating Manual - 819878-00
Usage for the intended purpose
LRG 16-60/LRG 16-61/LRG 17-60 conductivity electrodes may only be used for measuring electrical
conductivity in liquid media.
LRG 1x-6x conductivity electrodes are used in combination with the URS 60/URS 61 safety control unit
as a conductivity limiter and in combination with an LRR 1-60 conductivity controller as a continuous
blowdown regulator and limit indicator in steam boiler systems and hot-water plants.
 To guarantee trouble-free operation, observe the water quality requirements as specified
in the Technical Rules (TRD) and EN standards for steam boiler systems.
 The equipment may only be used within the admissible pressure and temperature limits; see
“Technical data” on page 18 and “Rating plate/Identification” on page 21.
 Visualisation and operation take place via an operating unit of type URB 60 or SPECTOR
control .
Applicable directives and standards
LRG 16-60/LRG 16-61/LRG 17-60 conductivity electrodes have been tested and approved for use in the
area governed by the following directives and standards:
Directives:
 Directive 2014/68/EU EU Pressure Equipment Directive
 Directive 2014/35/EU Low Voltage Directive
 Directive 2014/30/EU EMC Directive
 Directive 2011/65/EU RoHS II Directive
Standards:
 EN 12953-09 Shell boilers, requirements for limiting devices
 EN 12952-11 Water-tube boilers, requirements for limiting devices
 EN 60730-1 Automatic electrical controls – Part 1:
General requirements
 EN 61508 Functional safety of electronic systems
Standards documents:
 VdTÜV Bulletin BP WAUE 0100-RL
Requirements for the testing of water monitoring equipment
Technical rules for steam boilers - as a knowledge base:
This Manual occasionally refers to the TRD regulations as a knowledge base.
These regulations have not been in force since 1 March 2019 and are no longer updated.
They are replaced by the TRBS (German Technical Rules for Industrial Health & Safety).
Always observe the current regulations (EU directives, EN standards, information from emplo-
yers’ liability insurance associations, etc.) in order to comply with the current state of the art.

9LRG 1x-6x - Installation & Operating Manual - 819878-00
Usage for the intended purpose
Admissible system components, dependent on the required safety level
In accordance with EU Pressure Equipment Directive 2014/68/EU and standards EN12952, EN12953,
EN 61508, and the technical rules of VdTÜV Bulletin BP WAUE 0100-RL, the conductivity electrodes can be
operated with the following system components, depending on the required safety level.
Conductivity
electrodes
Safety
control unit for
limiter
Control unit as
continuous blowdown controller,
limit indicator
or automatic intermittent
blowdown
Operating unit
SIL 2
as per
EN 61508
LRG 16-60
LRG 17-60
LRG 16-61
URS 60
URS 61 −
URB 60,
SPECTOR
control
without
safety level in line
with
EN 61508
LRG 16-60
LRG 17-60
LRG 16-61
− LRR 1-60
URB 60,
SPECTOR
control
Fig. 1
Key to Fig. 1:
LRG = Conductivity electrode
URS = Safety control unit
URB = Visual display and operating unit
LRR = Conductivity controller
To ensure the proper use of equipment during all types of use, you must also read the Installa-
tion & Operating Manuals for the system components used.
 You will find the latest Installation & Operating Manuals for the system components named
in Fig. 1 on our website:
http://www.gestra.com/documents/brochures.html

10 LRG 1x-6x - Installation & Operating Manual - 819878-00
Improper use
There is a danger of death due to explosion if the equipment is used in potentially explo-
sive atmospheres.
Do not use the equipment in potentially explosive atmospheres.
Do not bring any equipment into service that does not have its own specific name plate.
The name plate indicates the technical features of the equipment.