Apator Metra E-RM 30 Manual

ELECTRONIC RADIO MODULE FOR WATER METER
E-RM 30
Installation and service man al
APATOR METRA s.r.o.
Havlíčkova 919/24
787 64 Šumperk
tel.: [phone]
fa : [phone]
e-mail: prodej@metra - su.cz
www: http://www.metra - su.cz

E-RM 30
Installation and service manual M2016/09f[EN]
TABLE OF CONTENTS
1. INTRODUCTION.....................................................................................................................3
2. DESCRIPTION.......................................................................................................................4
2.1. Type list.................................................................................................................................................. 4
3. CONSTRUCTION AND TECHNICAL DATA.....................................................................................5
3.1. Technical data........................................................................................................................................ 5
3.1.1. Radio module E-RM 30 construction............................................................................................... 6
4. RADIO MODULE´S OPERATION MODES......................................................................................7
4.1. Sleeping mode....................................................................................................................................... 7
4.2. Mode of automatic activation..................................................................................................................7
4.3. Working mode........................................................................................................................................ 7
4.4. Error mode............................................................................................................................................. 7
5. WORK WITH A RADIO MODULE................................................................................................8
5.1. Installation E-RM 30 to the water meter.................................................................................................8
5.2. Reading data, defining parameters and operating modes......................................................................8
5.3. Change of operation mode..................................................................................................................... 8
5.3.1. Switch a radio module to the working mode....................................................................................9
5.3.2. Switch a radio module to the mode o automatic activation.............................................................9
5.3.3. Switch a radio module to the sleeping mode.................................................................................10
5.4. Electronic seal reactivation...................................................................................................................10
6. OTHER INFORMATIONS........................................................................................................10
6.1. Transporting......................................................................................................................................... 10
6.2. Storage................................................................................................................................................. 10
6.3. Application and disposal...................................................................................................................... 11
6.4. Defects and their elimination................................................................................................................11
6.5. Warranty............................................................................................................................................... 11
7. ACCOMPANYING DOCUMENTATION.........................................................................................11
7.1. Ordering............................................................................................................................................... 11
7.2. Packing................................................................................................................................................. 11
8. WATER METERS.................................................................................................................13
8.1. Choosing the right water meter size.....................................................................................................13
8.2. Water meter JS.................................................................................................................................... 13
8.2.1. Single jet dry type water meter...................................................................................................... 13
8.2.2. Parameters.................................................................................................................................... 13
8.2.3. Structure........................................................................................................................................ 14
8.2.4. Testing at the receipt..................................................................................................................... 14
8.2.5. Conditions o correct installation o water meters..........................................................................14
8.2.6. Filling with water and start – up o low transducers......................................................................16
8.2.7. Water meter marking (example).................................................................................................... 17
8.3. Water meter GSD8-RF.........................................................................................................................17
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E-RM 30
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1. INTRODUCTION
Radio madule E-RM 30 scans the data from specially designed water meter, processes them, save to the
memory and transmits data via radio signal. Data sent by radio interface can be read without entering the flat
and even entering the building. E-RM 30 together with electronic heat cost allocators E-ITN 30 protect your
privacy and save your time due to remote data reading.
E-RM 30 rod antenna features a very good efficiency. Deu to this high-quality signla it is possible to read
data without entering the building eve in case of installation in the shaft of multiplestorey building. Data
reading can be made by billing company employee using mobile receiving unit. Data can be also read by
central reading system CRS 40 permanently installed in the building if required. If radio heat cost allocators
E-ITN 30 are also used, data are read simultaneously.
Every user can control current value on analogue dial of water meter. In contrast to the traditional water
meter, radio module E-RM 30 distinguish the direction of water flow – it is thus possible to detect
manipulation with water meter (its turning).
The radio module can be of course secured by conventional mechanical seal against its removal from water
meter. The radio module is equipped with an electronic seal that allows you to identify unauthorized
manipulation and record the e act date. Furthemore, some modelas can detect attemps to manipulate the
water meter by the use of an e ternam magnetic field (e.g. the use of a strong magnet). Information about
such manipulation is transmitted in radio signal.
Month consumptions for forward and back flow for past 12 months can be read from the radio module
memory via infra-red interface.
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Illustration 1: Radio module E-RM 30 with water meter JS
radio module E-RM 30
water meter JS
antenna
IR diode for infra-red
reading
preparation for
mechanical seal water meter dial
reading sensors

E-RM 30
Installation and service manual M2016/09f[EN]
2. DESCRIPTION
Radio module E-RM 30 is intended for record of data about consumed water – measured by mechanical
water meter – and for remote reading of these data. Mechanical water meter is equipped with rotating
circular disc with reflecting sector. Radio module permanently scan the surface of the disc – its speed and
rirection of rotation. Amount of consumed water is recorded and also direction of flow )forward flow or
backflow).
Radio module E-RM does not dispose of display – is equipped with IR interface with bi-birectional
communication. Via this interface it is possible to set module parameters, switch between operational modes,
get informations about set parameters, module functions and measured values (e.g. chapter 5.2. Reading
data, defining parameters and operating modes a 5.3. Change of operation mode).
Some models of the E-RM 30 (e.g. chapter 2.1. Type list) are able to detect attempts to manipulate the water
meter by using an e ternal magnetic field (for e ample by using a magnet). The actual transfer of data
between the water meter and the radio module is based on an optical principle (just like the radio module
itself) and is therefore not affected by a magnetic field.
The radio module is equipped with electronic seals (and also the option to use mechanical seals) in order to
safeguard the module from tampering. If there is an unauthorised removal of the module from the meter, the
device records and stores the date of the offence and transmits this information by radio signal. The unit
remains in operating mode and after re-activation and re-setting it continues to measure the flow in the water
meter.
2.1. TYPE LIST
Radio modules E-RM 30 are produced in several types, which are divergent in water meter made for,
antenna size and skill of magnetic field detection.
The type with short antenna (about 15mm) is determined to places where is not possible to use a standard
one. Due to the low signal is recommended - if it is possible – to use a module with standard antenna.
Type Water meter Antenna Biling period Calc lat. battery
lifetime (year)
Magnetic field
detection
E-RM 30.101
GSD8-RF
standard year
6+1 (reserve) -
E-RM 30.102 month
E-RM 30.111 short year
E-RM 30.112 month
E-RM 30.201
JS
standard year
6+1 (reserve) -
E-RM 30.202 month
E-RM 30.211 short year
E-RM 30.212 month
E-RM 30.301 JS standard year 10+1 (reserve) ●
E-RM 30.302 month
Warning!
Radio mod les are determined j st for one water meter type. Yo CAN´T se it for another type. For
example radio mod le E-RM 30.101 m st not be sed for water meter JS. The man fact rer
ass mes no liability for meas rement mistakes ca sed by water meter s bstitation.
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3. CONSTRUCTION AND TECHNICAL DATA
3.1. TECHNICAL DATA
Environment temperature 5 to 50 °C
Billing period e.g. chapter 2.1. Type list
Calendar functions month consumption, 12 months history (standard flow and backflow)
Data reading radio and infra-red interface
Protection against cheating backflow detection for e ample, reversal of the meter
electronic seal – records the data of any manipulation or removal of
device
magnetic pole deletction (> 3 mT) – only E-RM 30.3**
an option to mechanically lock the radio module to the water meter
Backup data daily backup of measured values including real time
Function control automatic
Dimensions 70 44 71 mm
Power suply lithium battery 3 V
Calculat. battery lifetime e.g. chapter 2.1. Type list
Material polycarbonate
IP code IP64
Class of climate and
mechanical environment
B
Class of electromagnetic
environment
E1
Working frequency 868 MHz
Transmitting wattage < 5 mW
Class of operating cycle 1 (percent of operating cycle <0,1 %)
Length of transmission < 8 ms
Transmission frequency E-RM 30.**1 (year billing period)
•60-66 seconds first month after beginning of billing period
•240-246 seconds rest of the year
E-RM 30.**2 (month billing period)
•60-66 seconds first 3 days after beginning of billing period
•240-246 seconds rest of the year
Transmition up to 500 m (with standard antenna, reading carried out by antenna
ZZ P- 868
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Rem.: all metal parts o construction (switch rooms, armouring, li ts, etc.)
can negatively a ect the range o radio signal.
Data coding yes
Data available via infra-red
interface (for e act data
structure see manual for
decoding software)
E-RM 30.***
•serial number
•consumption in actual billing period, standard flow
•consumption in actual billing period, back flow
•consumption in past billing period, standard flow
•consumption in past billing period, back flow
•reading date (day, month, year)
•date of billing period beginning
•electronic seal status
•stav detektoru magnetického pole (pouze E-RM 30.3**)
Data available via infra-red
interface (for e act data
structure see manual for
decoding software)
E-RM 30.**1
•serial number
•date of billing period beginning
•month consumptions, standard flow (12 months history)
•month consumptions, backflow (12 months history)
•reading date
•consumption in actual billing period, standard flow
•consumption in actual billing period, back flow
•consumption in past billing period, standard flow
•consumption in past billing period, back flow
•consumption in billing period before last, standard flow
•consumption in billing period before last, back flow
•date of electronic seal activation
•date of electronic seal breakage
•operation mode of radio module
•date of magnetic field disruption (only E-RM 30.3**)
E-RM 30.**2
•serial number
•date of billing period beginning
•month consumptions, standard flow (12 months history)
•month consumptions, backflow (12 months history)
•reading date
•consumption in actual billing period, standard flow
•consumption in actual billing period, back flow
•electronic seal activation date
•date of electronic seal breakage
•operation mode of radio module
•date of magnetic field disruption (only E-RM 30.3**)
3.1.1. Radio module E-RM 30 construction
The E-RM 30 unit consists of a top part with an aperture for infrared communication and a bottom part for
detecting the water meter. Both parts provide a protective covering for the printed circuit boards, electronic
components, antenna and battery. The device is equipped with a 16-bit micro processor with low power
consumption and a radio transmission module, powered by lithium batteries. The bottom part is attached to
the top part by 3 self tapping screws and protected against water ingress by a seal.
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4. RADIO MODULE´S OPERATION MODES
Radio module E-RM 30 can be in four operation modes:
•sleeping mode
•automatic activation mode
•working mode
•error mode
Description, how to cange a operation mode find in chapter 5.3. Change of operation mode.
4.1. SLEEPING MODE
Sleeping mode is suitable for prolonged storage prior to radio module use. In this mode device does not scan
position of water meter disc (does not measure amount of consumed water) and does not trasnmit measured
data. Radio module only actualizes real time. Electronic seal is not activated and consumption of electric
power is minimized. The storage period should not e ceed one year.
After installation and sealing the radio module is necessary to do an activationtivaci – description e.g.
chapter 5.3.1. Switch a radio module to the working mode.
Warning!
Witho t an activation, radio mod le E-RM 30 is not reading and sending any data.
4.2. MODE OF AUTOMATIC ACTIVATION
Mode of automatic activation makes installation of water meter with radio module easier. Installation consists
only from putting module on water meter and installation of mechanical seal.
In mode of automatic activation, module regulary tests disc presence. If the presence is detected, measuring
of water consumption is switched on. After 5 liters flows trough, radio module is switched to working mode
and electronic seal is activated. Date of electronic seal activation is saved to radio module memory.
We recommend to do an activation by 5 liters flow immediately after the installation. Otherwise radio module
E-RM 30 is not sending any data and it is not possible to chcek radio modules availability and functionallity
with radio reading unit.
It is also possible to do an activation by chapter 5.3.1. Switch a radio module to the working mode.
4.3. WORKING MODE
Radio module in working mode measures consumption of water, transmits the data in regular intervals,
actualizes real time and test state of electronic seal.
4.4. ERROR MODE
Radio module is switched to error mode when date of billing period beginning is wrong, RAM memory
content is invalid or error occurs when saving data to flash memory. Module does not scan disc position
(does not measure water consumption), does not transmit measured data does not test state od electronic
seal. It only actualizes real time.
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5. WORK WITH A RADIO MODULE
5.1. INSTALLATION E-RM 30 TO THE WATER METER
1. Check the condition of the intended water meatier and its housing. If there is any damage or
contamination, clean or replace the meter.
2. Remove the cardboard plugs which are used to protect the E-RM 30 radio module's sensors during
transport. Retain the plugs for covering the sensors during any modes changes (5.3 Change of
operation mode).
3. Attach the radio module to the water meter using the snap-on lock and then seal it. It is
recommended that plastic or adhesive paper seals are used.
4. Activate the radio module depending on the required operating mode.
5.2. READING DATA, DEFINING PARAMETERS AND OPERATING MODES
Given that the radio module RM E-30 is not equipped with a display, it is possible to obtain basic information
about the active mode, the start date of the billing period, and electronic seals using infrared reading unit
IRU 10.00.
The IRU 10.00 displays information related to the last unit it has read. It is therefore necessary to carry out a
data reading from the radio module so that you can view the parameters and operating mode. During the
reading it is necessary to put on the viewing screen so as to avoid interference from ambient light sources.
The front of the meter reading head should be in contact with the plastic cover of the infrared reading diodes
inside the unit (e.g. Illustration 2: Data reading from E-RM 30 with IRU 10.00).
For more information about reading data, display parameters and operating mode, refer to the Installation
and service manual for the IRU 10.00.
5.3. CHANGE OF OPERATION MODE
Using the infrared reading unit, the IRU 10.00, it is possible to change the operating modes of the E-RM30.
In individual operating modes it is only possible to make certain changes (see table below). It is therefore
advisable to first check the current operating mode of the radio module (e.g. chapter 5.2. Reading data,
defining parameters and operating modes) and then change the mode.
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Illustration 2: Data reading rom E-RM 30 with IRU 10.00

E-RM 30
Installation and service manual M2016/09f[EN]
Act al operation mode Modes to which the mod le can be switched
Sleeping mode Mode of automatic activation
Working mode
Mode of automatic activation Sleeping mode
Working mode
Working mode Slepping mode
Error mode -
Warning!
If changing the operating mode req ires removal of the radio mod le from the water meter (or
changing the water meter), the light sensors in the nit sho ld not be exposed to nnecessary light.
It is therefore advisable to cover the sensors with the sensor pl gs s pplied for transport.
5.3.1. Switch a radio module to the working mode
Switching the radio module into working mode is possible from sleep mode and mode of automatic
activation. The radio module must be mounted to a water meter due to the detection of reflective targets. The
E-RM 30 should also be assured against the movement of mechanical seals.
1. On the meter reading unit, when spare capacity is displayed (for e ample, 494) switch to the
submenu by pressing and holding the button until --A-- is displayed.
2. On the meter reading unit, in the submenu, select "Pro" and hold down the button until --A-- is
displayed.
3. Readiness of the IRU10.00 is indicated by -PrE-. Place the readout head onto the infrared viewing
port of the E-RM 30 and press the button briefly. Ongoing communication is indicated by IP on the
viewing screen.
4. A successful mode change is indicated by a single beep and the display showing o. Pro .
5. An unsuccessful mode change is indicated by four beeps and the display showing E. Pro.
For more informations, refer to the Installation and service manual for the IRU 10.00.
5.3.2. Switch a radio module to the mode of automatic activation
Switching the radio module to mode of automatic activation is only possible from sleeping mode. The radio
module must not be attached to a water meter and the optical sensors should be covered (see above).
Warning!
When the radio mod le is changed from sleeping mode to mode of a tomatic activation whilst
attached to a water meter, do not let it r n dry after activation by a 5 litre thro gh-flow. In that case,
remove the nit from the water meter, re-attach it to the water meter and reactivate with a 5 litre
thro gh-flow.
1. On the meter reading unit, when spare capacity is displayed (for e ample, 494) switch to the
submenu by pressing and holding the button until --A-- is displayed.
2. On the meter reading unit, in the submenu, select "rAA" and hold down the button until --A-- is
displayed. --A--.
3. Readiness of the IRU10.00 is indicated by -PrE-. Place the readout head onto the infrared viewing
port of the E-RM 30 and press the button briefly. Ongoing communication is indicated by IP on the
viewing screen.
4. A successful mode change is indicated by a single beep and the display showing o. rAA.
5. An unsuccessful mode change is indicated by four beeps and the display showing E. rAA.
For more informations, refer to the Installation and service manual for the IRU 10.00.
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5.3.3. Switch a radio module to the slee ing mode
Switching the radio module into sleeping mode is possible from operating mode and mode of automatic
activation. The radio module must not be attached to a water meter and the optical sensors should be
covered (see above). In the vent of a change from operating mode, there will also be a reach of the
electronic seal.
1. On the meter reading unit, when spare capacity is displayed (for e ample, 494) switch to the
submenu by pressing and holding the button until --A-- is displayed.
2. On the meter reading unit, in the submenu, select "uPr" and hold down the button until --A-- is
displayed. --A--.
3. Readiness of the IRU10.00 is indicated by -PrE-. Place the readout head onto the infrared viewing
port of the E-RM 30 and press the button briefly. Ongoing communication is indicated by IP on the
viewing screen.
4. A successful mode change is indicated by a single beep and the display showing o. uPr.
5. An unsuccessful mode change is indicated by four beeps and the display showing E. uPr.
For more informations, refer to the Installation and service manual for the IRU 10.00.
5.4. ELECTRONIC SEAL REACTIVATION
Reactivation of electronic seal is possible to do by following steps:
1. Remote radio module (if is still installed on water meter). Radio module is now in working mode and
has broken electronic seal.
2. Cover optical sensors with black cover used during module trasportation.
3. Switch a radio module to the sleeping mode with an infra-red reading unit IRU 10.00 e.g. kapitola
5.3.3. Switch a radio module to the sleeping mode.
4. Activate a radio module in one of twou following steps. During an installation, electreonic seal will be
reactivated.
•Switch a radio module to the mode of automatic activation with an infra-red reading unit IRU
10.00 (chapter 5.3.2. Switch a radio module to the mode of automatic activation), install the radio
module to the water meter, seal it and activate it by 5 liters flow.
•Install the radio module to the water meter, seal it and switch a radio module to the working
mode with infra-red reading unit IRU 10.00 (chapter 5.3.1. Switch a radio module to the working
mode).
5. Radio module is now in a working mode and electronic seal is activated and unbroken.
6. OTHER INFORMATIONS
6.1. TRANSPORTING
E-RM 30 radio modules can be transported under following conditions:
•devices ca be transported by all usual covered means of transport
•devices must be in original package
•originally packed devices must be stored and secured to avoid mechanical damages during
transportation
•devices can not be transported together with aggressive substances
•temperature during transportation from 0 °C to + 55 °C
•relative humidity from 45 % to 75 %
6.2. STORAGE
Radio module E-RM 30 is electrical davice and can be stored under these conditions:
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•devices must be originally packed by manufacturer
•storage temperature from + 10 °C to + 30 °C
•relative humidity from 45 % to 75 %
•devices must be stored in clean covered areas without aggressive substances and stored properly to
avoid mechanical demage
6.3. APPLICATION AND DISPOSAL
"This device is subject to a waste a management in accordance with local legislation."
6.4. DEFECTS AND THEIR ELIMINATION
Any E-RM defect should be repaired by manufacturer only.
6.5. WARRANTY
If device is installed and handled according to manufacturer instructions mentioned in installation and service
manual, manufacturer provide warranty under the valid legislation unless agreed differently.
The warranty is void if device was used contrary to installation and service manual or damaged:
•during transport or storage by customer or reseller
•when mounted or dismantled to the customer device
•because of improper handling or installation into other device than agreed in manual
•if the product was e posed to different environment agreed in manual
•if mechanically or in other way damaged by user
7. ACCOMPANYING DOCUMENTATION
7.1. ORDERING
Order must include Setting protocol that is available on webside for business partners. In every order
following items must be specified:
•quantity
•type
•attach Setting protocol
•spare parts (e tra pices)
•delivery date
•method of transport
Order e ample 100 pcs E-RM 30, required delivery 28.2.2012, EXW + filled Setting protocol.
7.2. PACKING
Packing sheet is included in every bo (e.g. Illustracion 3: Packing sheet) with mark of producer, device type,
number of items and their serial numbers, packing date and the name of operative who checked and packed
the products.
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Illustracion 3: Packing sheet

E-RM 30
Installation and service manual M2016/09f[EN]
8. WATER METERS
8.1. CHOOSING THE RIGHT WATER METER SIZE
The main criterior for choosing the right water meter size (nominal diameter) should always be the water
meter working conditions, that is the average and ma imum value of a passing water working flow.
When a water meter is too large, it does not increase the investment cost, but also has lower accuracy in
case of small water flow. A too small water meter can cause its overload and sumiltaneously quicken the
wear of its active parts.
It is recommended to choose the size of the water meter so that the size of the largest e pected jet flow in
the system between 0,45 and 0,6 of the water meter constant jet flow Q3.
8.2. WATER METER JS
8.2.1. Single jet dry ty e water meter
Single jet dry type water meter consists of two basic units: measurement unit and counting mechanism. The
main elements of the measurement unit are: a body with a sieve places in an inlet channel, a vane, a sealing
plate. Main components of a counting mechanism are: a gear set, a roll set and a counter cover. The
mechanism is attached to the unit by means of fastening ring and after legalisation, sealed with lead.
Single jet water meter vane is propelled by a jet of water which pushes ifs blades along the vane perimeter
and it is the only movable element submerged in water. Rotor rotation is conveyed by a magnetic head
clutch, through the sealing plate. Dry counter, sealed air-tight in separete module, sums the flow of measured
water and displays the result in digital, easy to read manner. Counter is fitted with a motion detector which
makes it possible to automate regulation and legalisation.
The regulating device is protected from tampering by a lead seal. Thanks to a special design of rotor
bearings and the choice of corrosion and abrasion resistant materials, the water meter is characterised by
high durability.
8.2.2. Parameters
Type cold water
warm water
JS-1,6
JS90-1,6
JS-2,5
JS90-2,5
JS-2,5-G1
JS90-2,5-G1
JS-4
JS90-4
Nominal diameter [mm] 15 20
Permanent flow rate Q3[m3/h] 1,6 2,5 4
Overload flow rate Q4[m3/h] 2 3,125 5
Minimum flow rate Q1
(horizontal / vertical installation)
[dm3/h] 16 / 32
20 / 40
25 / 50
31,25 / 62,5
40 / 80
50 / 100
Transition flow rate Q2
(horizontal / vertical installation)
[dm3/h] 25,6 / 51,2
32 / 64
40 / 80
50 / 100
64 / 128
80 / 160
Ma imum permissible error
(Q2 to Q4)
±2 %
±3 %
Measuring range R (Q3 / Q1)
(horizonral / vertical installation)
100 / 50
80 / 40
Ma . working temperature [°C] 30
90
Ma . working pressure 1,6 MPa (16 bar)
Lenght [mm] 110 130
Conformity MID, EN 14154, OIML R49
* For water meters DN 15, Q3 = 2,5 m3 is also possible to order a water in lengh L=80 or L=115
(input/output = 7/8/3/4“ pro L=115)
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8.2.3. Structure
8.2.4. Testing at the recei t
The water meter supplied should be checked for possible e ternal damage which occurred during transport,
especially the body and threaded connectors and the counter cover. Also, check the condition of lead seals,
date of vericifation and labelling of a water meter.
The following markings are located on the plaque or a body of water meter:
•name and marking of a manufacturer
•mark of test type according to MID
•manufacturer´s mark type
•water meter number
•metrologic marking consists of an upper case M and two last digits of the water meter year of
production
•notified person number
•flow direction, as an arrow
•V or H marking for vertical or horizontal pipes (or both)
•jet flow value Q3
•Q1 andr Q3 ratio
•marking of measurement unit in m3 (on the counter dial)
•value of the ma imum pressure loss ΔP
•value of upper pressure limit: PN16
8.2.5. Conditions of correct installation of water meters
1. Place of installation for water meters shold be easily accessible for installation, operation, reading
indications, protected from negative atmospheric conditions and protected from influence aof
electrical and gas installations. In case there is no such place, the water meter may be installed in
14 / 17
Illustration 4: Water meter structure
intel strainer
double – sided bearing a le
anti – freeze panel
triple – antimagnetic protection
counter mechanism with blockade against
multiple rotating
hermetic counter
squeeze-Yresistant

E-RM 30
Installation and service manual M2016/09f[EN]
the water meter well and additionally the water meter and its equipment should be installed far
enough from the well bottom.
2. In the location of installation, the water meter connot be at risk of being hit or be subjected to
vibrations caused by other devices in the vicinity or subjected to high ambient air temperature,
contamination, flooding and corrosive action of the surroumdings. Temperature in the installation
location should not be lower than 4 °C. The water meter should be protected from influence of such
hydraulic phenomena such as cavitation or hydrodynamic water hammering.
3. Before and after the water meter provide the valves in order to cut off the water supply if there is
need for deinstallation or repair. Use valves which can entirely reveal the cross – section of a water
pipe.
4. In case of e pected water contamination during time of operation, install a filter or a setting tank
between a valve and a strraight pipe section and before the water meter.
5. For an installation of a water meter which does not cause strain in the body it is recommended to
use compensative connectors installed at the output.
6. The pipe in the installaton lacation should be shaped so that there is no possibillity for an air pocket
to be created in the water meter. Water meter has to be entirely filled with water, so the water pipe
after the water meter cannot decline. (Illustration 5: Water meter installation).
7. Water meter should mot be under risk of e cessive strain caused by pipelines and equipment. If
necessary, install it on a pedestal or in a grip. What is more, the pipes connecting on the inlet and
outlet side should be adequately fastened, so that no part of the system is dislocated by the water
when the water meter is deinstalled or disconnected from one side.
8. During installing a meter in the water network, observe the correct water meter orientation according
to the design: for horizontal, vertical and diagonal operation. (Ilustration 6: Sample permitted
installation positions).
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Illustration 5: Water meter installation
water meter

E-RM 30
Installation and service manual M2016/09f[EN]
9. When using typical connectors, using other straight sections before (U0) and after (D0) the device is
not required.
However, in case of installing devices after a double elbow. Non – return valve or a pupm, provide
a straight pipe section L=5 DN (device nominal diameter) before the device (U5) and after the
device L1=3 DN (D3) (Illustration 5: Water meter installation).
10. The pipe sections before and after the water meter should be coa ial. Gaskets should be placed
concentrically in relation to the pipe.
11. Water flow through the water meter should correspond to the direction of arrows placed on both
sides of the body.
Warning!
When the water meter is connected, performing welding works is not allowed, as it will ca se it to a
demage.
8.2.6. Filling with water and start – u of flow transducers
1. Before installing the water meter, the pipeline should be flushed in order to remove contamination
and the filter (if it is used) should be cleaned. During flushing, use a spigot to replace the water
meter.
2. Before installation, check the operation of a water meter by starting a rotating motion of a rotor while
observing the rotation or the rotation of the counter indicators. Check the lead seal condition.
3. Before installing the water meter water should be supplied freely to the pipeline with the vents open
so that the air that leaves the system does not cause e cessive water meter rotations, which causes
the device damage.
4. During operation, the valves before and after the water meter should be entirely open.
5. After performing all the actions related to the start-up, check the water meter operation by observing
the increase of the counter indication.
6. During operation, check whether the actual operating conditions correspond to the water meter
intended use, in particular in terms of permitted pressure, temperature and flow.
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Ilustration 6: Sample permitted installation positions
1 – horizontal orientation (class B: R100 – H)
2,3 – diagonal orientation (class A: R40 to 63 – V)
4,5,6 – vertical orientation (class A: R40 to 63 - V)

E-RM 30
Installation and service manual M2016/09f[EN]
8.2.7. Water meter marking (exam le)
type
temperature class
continuous flow volume
alternative connector
JS 90 – 2,5 – G1
8.3. WATER METER GSD8-RF
Nominal flow Qn1,5 m3/h
Ma imal flow Qma 3 m3/h
Ma . working pressure 16 bar
Class of accuracy B – horizontal installing
A – vertical installing
Ma . working temperature 30 °C – water meter for cold water
90 °C – water meter for warm water
Dimension 110 70 74
Weight 0,5 kg
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