Lutz RM10 User manual

0698-701 Relay module - 04/2021
Translation of the original instructions
RELAY MODULE / POWER SUPPLY UNIT
Type
RM10
RM30
NG10
en
Please read this manual before starting up.
To be retained for future reference.

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Table of Contents
A. General ............................................................................................................................................ 4
1. Concerning this manual ............................................................................................................. 4
1.1 Terms .................................................................................................................................. 4
1.2 Target groups...................................................................................................................... 4
1.3 Associated applicable documents....................................................................................... 4
1.4 Warnings and symbols ....................................................................................................... 5
1.5 Latest state.......................................................................................................................... 5
1.6 Copyright ............................................................................................................................ 5
2. Safety.......................................................................................................................................... 6
2.1 General safety information................................................................................................. 6
3. Scope of supply .......................................................................................................................... 7
4. Marking .................................................................................................................................. 7
5. Modular Flow Meter System TS.................................................................................................. 8
6. Modular Flow Meter System HDO .............................................................................................. 9
B. Relay module RM10/RM30 and power supply unit NG10............................................................... 10
1. Proper use ................................................................................................................................ 10
1.1 Technical data ................................................................................................................... 12
1.2 Application in explosion hazard areas .............................................................................. 12
1.2.1 Electrical data........................................................................................................... 13
1.2.2 Applied standards.................................................................................................... 13
1.3 Prevention of obvious misapplication (examples)............................................................ 13
2. Installation ............................................................................................................................... 14
  2.1 Retrottingtherelaymodule/powersupplyunit............................................................. 14
2.2 Connection for automatic mode....................................................................................... 15
2.3 Flow meter with separate installation
of relay module/power supply unit and operating unit ................................................... 18
2.4 Flow meter with relay module/power supply unit
and separate installation of operating unit ...................................................................... 20
3. Maintenance and servicing ...................................................................................................... 22
3.1 Changing the fuse in the relay module/power supply unit ............................................. 22
C. Repairs .......................................................................................................................................... 24
D. Traceability...................................................................................................................................... 24
E. Waste disposal ................................................................................................................................ 24
F. Annex .......................................................................................................................................... 25
1. Terminal assignment of cables and connectors ....................................................................... 25
2. Trouble shooting ...................................................................................................................... 26
2.1 Fault report ....................................................................................................................... 26
2.2 Other faults....................................................................................................................... 28
Spare parts list ........................................................................................................................... 32-34
Declaration of Conformity .................................................................................................................... 35

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A. General
1. Concerning this manual
This manual
• is part of this product
• is valid for all mentioned series
• describes the safe and proper use in all operating stages
1.1 Terms
User: Single person or organisation who is using the products e.g. customer, user, assistant
1.2 Target groups
Target group Task
User ► Retain these operating instructions at the product’s place of use
for future reference.
► Demandthestatoreadandobservetheseinstructionsandthe
additional valid documents, in particular the safety information
and warnings.
► Observe additional regulations and instructions concerning the
plant.
Qualiedpersonnel,installer ► Read, observe and follow these instructions and the additional
valid documents, in particular the safety information and
warnings.
Tab. 1: Target groups and their tasks
1.3 Associated applicable documents
Document Purpose
Operatinginstructionsbasicowmeter Safeandproperuseofthebasicowmeter.
Operating instructions operating unit Safe and proper use of the operating unit. Set up and
check the functions of the relay module.
Operating instructions
communication module
Safe and proper use of the communication module.
Supplementary operating instructions for additional delivered components
Tab. 2: Associated applicable documents and purpose

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1.4 Warnings and symbols
Warning Level of risk Consequences in case of
non-compliance
DANGER direct danger death or serious injury
WARNING possible direct danger death or serious injury
CAUTION possible dangerous situation Light physical injury
NOTICE possible dangerous situation damage of property
Tab. 3: Warnings and consequences in case of non-compliance
Symbol Meaning
Safety information
►Comply with all measures that are marked with a safety sign to prevent injuries or
death.
iInformation / Recommendation
►What to do
→Cross reference
3Requirement
Tab. 4: Symbols and meaning
1.5 Latest state
Pleasendthelateststateofthisoperatinginstructionunderwww.lutz-pumpen.de.
1.6 Copyright
The content of this operating instruction and the images contained in them are subject to the copyright
protection of Lutz Pumpen GmbH.

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2. Safety
The manufacturer will not be held responsible for any damages resulting from non-compliance of the
overall documentation, in particular for damages in case of non-compliance of the operating instructions.
2.1 General safety information
Observe following regulations before accomplishing all activities.
Product safety
The relay module is constructed in conformity with the state of the art and approved safety-related
standards. Danger however can occur during use for life and health of the user or third parties or dam-
age of the relay module and other material assets. Therefore:
• Operate the relay module only in a technically sound state, for its proper use, and conscious of safety
and hazards taking into account these instructions.
• Ensure that these instructions and all associated applicable documents are complete, legible, and
stored in a place that personnel can access at all times.
• Refrain from any manner of working that endangers personnel or uninvolved third parties.
• In the case of a safety-relevant malfunction, stop the relay module system immediately and enlist a
responsible person to rectify the malfunction.
• In addition to the overall documentation, observe the statutory or other safety and accident preven-
tion regulations, as well as the valid standards and guidelines of the respective operating country.
Modications
Unless the manufacturer has provided its consent in writing, the manufacturer is not liable for interven-
tionsperformedbytheuser(modications)ontheproduct,suchasconversion,alteration,newdesign,
etc.Modicationsnotagreedwiththemanufacturermayhavethefollowingeects,amongothers:
• Functional impairments on the appliance or plant
• Damage to the appliance and other property damage
• Environmental damage
• Personal injuries right through to death
Duties of the operator
Safety-conscious working
• Operate the relay module only in a technically sound state, for its proper use, and conscious of safety
and hazards taking into account these instructions.
• Ensure observance and monitoring of:
- Proper use
- Statutory or other safety and accident prevention regulations
- Safety provisions in handling hazardous substances
- Valid standards and guidelines in the respective country of operation
• Provide protective equipment.

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Personnel quali cation
• Ensure that personnel tasked with work on the relay module has read and understood these instructions
and all associated applicable documents, particularly safety, maintenance and servicing information,
before they start work.
• Clarify responsibilities, competencies and monitoring of the personnel.
• Ensurethatallworkiscarriedoutbytechnicalqualiedpersonnelonly:
- Assembly, servicing, maintenance work
- Work on the electrics
Statutory warranty
• Duringtheguaranteeperiod,obtainthemanufacturer'spermissionformodications,maintenance
work or alterations.
• Use only original parts.
Duties of the personnel
• Observe the notices on the relay module and maintain them in a legible state.
• Use protective equipment where necessary.
• Ensure that the relay module is disconnected from power supply before you carry out assembly and
maintenance work.
3. Scope of supply
When unpacking the goods, check the articles that:
• there is no visible damage from transporting,
• the shipped articles, including accessories, are the articles you ordered,
• no screws have loosened during transportation.
4. Marking
1 Type of relay module
2 ATEX-Identication
3 Technical data
4 Serial number
5 Year of construction (last two digits of the serial number e.g. -15 for 2015)

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5. Modular Flow Meter System TS
Theowmeteroperatesaccordingtothepositivedisplacementprinciple.Inahousingttedwithinletand
outletisameasuringchamberthroughwhichtheuidisforcedtoowonitswaythroughthehousing.
Inthemeasuringchamber,anutatingdiscblockstheuid`sclearpath.Asitowsthroughthemeasuring
chamber,theuidpushesthenutatingdisctooneside.Itistheactionofdisplacingtheimpedimentwhich
produces the wobble movement of the disc and circular motion of the nutating disc shaft. By means of a
driver, a magnet with several poles is set into rotation, which is able to activate a magnetically switched
contact through the lid of the housing. Every revolution of the nutating disc is assigned to a constant volume
andaxednumberofpulses,sopermittingtheelectonicevaluatingsystemtodeterminethevolumetric
owthroughthenumberofreceivedpulses.
For practically-orientated application, the ow meter system is made up of various modules:
ÀOperating unit
Electronicevaluatingunitwithtouchscreenforoperationoftheow
meter.
ÁProtection cap
Protectsthemodulesbasicowmeter,relaymoduleorpowersupply
unit when the operating unit is decentrally installed.
Pulse converter
Ampliesthesignalsfromthebasicowmeter.Isrequiredifthe
signals need to be transmitted further than 5 m.
ÂRelay module
Switches the external electrical appliances such as pump motor and
solenoid valve and is controlled by the evaluating electronics of the
operating unit.
Power supply unit
Supplies power to the operating unit when battery-powered operation
is not desired and when no relay module is needed.
Communication module
Is the interface to other management, control or process control
systemswithdierentinputsandoutputs.
à Basic ow meter
Housing and measuring chamber with all components for volumetric
measurement which come into contact with the transported medium.
The ow meter can be used in two dierent operating modes:
Manual mode: Forllingusingamanuallyoperatednozzle.The
partvolumemeterisresettozeroandtherequired
volume is metered while the nozzle is being oper-
ated.
Volume preset: Thepreselectedvolumeislledbypressingakey.
Volume preset is possible only when relay module
is connected.
Fig.1-Operatingunitandowmeter
Fig. 2 - Relay module and protection cap

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Fig.3-Operatingunitandowmeter
Fig. 4 - Relay module and protection cap
6. Modular Flow Meter System HDO
TheowmetersofseriesHDOareovalgearowmeters.Thishasproventobeareliableandhighlyac-
curatemethodofmeasuringow.Exceptionalrepeatabilityandhighaccuracyoverawiderangeofuid
viscositiesandowratesarefeaturesoftheHDOseriesowmeterdesign.Thelowpressuredropandhigh
pressureratingmeanstheHDOseriesowmeterissuitableforbothgravityandpump(inline)applications.
For practically-orientated application, the ow meter system is made up of various modules:
ÀOperating unit
Electronicevaluatingunitwithtouchscreenforoperationoftheow
meter.
ÁProtection cap
Protectsthemodulesbasicowmeter,relaymoduleorpowersupply
unit when the operating unit is decentrally installed.
Pulse converter
Ampliesthesignalsfromthebasicowmeter.Isrequiredifthe
signals need to be transmitted further than 5 m.
ÂRelay module
Switches the external electrical appliances such as pump motor and
solenoid valve and is controlled by the evaluating electronics of the
operating unit.
Power supply unit
Supplies power to the operating unit when battery-powered operation
is not desired and when no relay module is needed.
Communication module
Is the interface to other management, control or process control
systemswithdierentinputsandoutputs.
à Basic ow meter
Housing and measuring chamber with all components for volumetric
measurement which come into contact with the transported medium.
The ow meter can be used in two dierent operating modes:
Manual mode: Forllingusingamanuallyoperatednozzle.The
partvolumemeterisresettozeroandtherequired
volume is metered while the nozzle is being oper-
ated.
Volume preset: Thepreselectedvolumeislledbypressingakey.
Volume preset is possible only when relay module
is connected.

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B. Relay module RM10/RM30 and power supply unit NG10
1. Proper use
For preselected volume, the relay module is required alongside the
basicowmeterand operatingunit modules.Therelaymoduleis
controlled by the operating unit and switches the external electrical
appliances such as pump motor and solenoid valve. The electrical
connectionbetweentheoperatingunitandrelaymoduleiseected
by means of a ribbon cable.
Relay module RM10/RM30 or power supply unit NG10 includes a power
supply for the other connected modules.
TherelaymoduleRM10andRM30arettedwiththreesocketsper-
mitting the connection of external appliances À, Áand the power
supply Â.
ThepowersupplyunitNG10isttedonlywithaconnectionforthepower
supply Â.
The device can be used in the following environments:
- on roofed surfaces
- in roofed and closed rooms
- altitude up to 2000 m
- ambient temperature -20°C up to 60°C
- maximum relative humidity 80%
- degree of polution 2
!DANGER
Live mains connection!
Electric shock can kill you.
►An operating unit or a protection cap must be mounted to the relay modules RM10, RM30 or to the
power supply unit NG10 as protection against touching and contact with water.
►Avoidsuddentemperatureuctuations.Ifcondensationhasoccurred,donotoperatethedeviceuntil
it is dry again.
!WARNING
If the relay module is defective, it may switch on automatically!
Thiscanleadtotheescapeofuid.Inthecaseofhazardousuids,thiscanleadtopropertydamageand
injuries.
►Install an EMERGENCY OFF device.
Fig. 5 - Relay module