Honeywell BK-G6A, BK-G10A, BK-G2.5A, BK-G4A, BK-G16A Operating Instructions Manual

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03250886
1000063767-002-20
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SRBSRB SRBCZ P

Safety

Safety
Please read and keep in a safe place
Operating instructions
Diaphragm gas meters BK-G.6 to BK-G5
© 2018 Elster GmbH · Edition 01.18

Contents

Contents
Translation from the German
Diaphragm gas meters
BK-G.6 to BK-G5 .....................
Contents ..............................
Safety.................................
Checking the usage .....................
Diaphragm gas meters BK-G1.6 to G25 ......2
BK with integrated “Smart Valve” ............2
Type code .............................2
Part designations ........................ 2
Type label/Index plate.....................2
ATEX identification .......................3
Installation ............................4
Temperature test point ..................5
Pressure test point on housing (optional) ...5
Connecting the piping ....................6
Pressure test point on outlet connector
(optional) ..............................6
Opening the test nipple ...................6
Closing the test nipple ....................6
Tightness test ..........................6
Commissioning.........................7
Maintenance/Removal...................8
Accessories ...........................8
Technical data .........................9
Declarations of conformity ..............0
ATEX legend ..........................14
Logistics .............................4
Contact ..............................4
Please read through these instructions
installation, pass the instructions on to the opera­tor. This unit must be installed and commissioned in accordance with the regulations and standards in force. These instructions can also be found at www.docuthek.com.
Explanation of symbols
• ,  ,  ,  ... = Action
= Instruction
Liability
We will not be held liable for damage resulting from non-observance of the instructions and non-com­pliant use.
Safety instructions
Information that is relevant for safety is indicated in the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified gas technicians. Electrical interventions may only be carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM spare parts.
Changes to edition 07.7
The following chapters have been changed: – Checking the usage – Commissioning – Accessories – Technical data – Declarations of conformity – ATEX legend – Logistics
GB
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Checking the usage

m
3
,
-
BK-G..M..
12345678
DE-07-MI002-PTB001 class 1,5
NG-47001BM0443 DIN EN 1359:2007
Q
max
Q
min
S/N: 002545632734 1 imp =^ 0,01 m
3
M ... 0102
Diaphragm gas meters BK-G.6 to G5
Residential or commercial diaphragm gas meters BK for recording gas consumption values for natural gas, town gas, propane and butane, as gases of the first to third families pursuant to DIN EN 437:2003 (DVGW Code of Practice G260). If used for internal
GB
measurements which are not subject to statutory testing, the gas meter is also suitable for hydrogen, nitrogen, air and inert gases.
The meters are designed for use in air at normal
atmospheric conditions. For use in other environ­ments, please contact the manufacturer (see also page 4 (Installation)).

BK with integrated “Smart Valve”

Not suitable for highly contaminated gases, e.g. town gas.
Potentially explosive atmosphere
Diaphragm gas meters that are labelled with
and (see sticker near the index) are suitable for operation in potentially explosive atmospheres, see page10 (Declarations of conformity).
The meter function is only guaranteed when used
under the specified operating conditions – see page 9 (Technical data). Any other use is con­sidered as non-compliant.

Type code

Code Description
BK-G Diaphragm gas meter
.6
.5 4
6 0 6
5
M
C
A
E
B
T
Te
TB
TeB
Chekker mechanical index Absolute ENCODER index
Indication of volume at base conditions
Temperature conversion:
mechanical-electronic temperature
conversion and pressure correction
electronic temperature conversion and
pressure correction
Flow rate
0.016 – 2.5 m
0.025 – 4 m3/h
0.04 – 6 m3/h
0.06 – 10 m3/h
0.1 – 16 m3/h
0.16 – 25 m3/h
0.25 – 40 m3/h
Mechanical index
Electronic index
mechanical
electronic

Part designations

6
4
7
5
2
3
1
Diaphragm gas meter BK
Index with index plate Connectors
4 Pressure test point to BS4161 (optional)
5 Protective caps 6 2 x thermowells (optional)
7 Pressure test point with sealing sleeve (optional)

Type label/Index plate

Please quote for all enquiries:
The manufacturer’s serial number S/N can be
found at the bottom of the type label.
The customer identification number is under the
barcode.
BK-G..M..
BK-G..M..
DE-07-MI002-PTB001
Q
max
class 1,5
Q
min
M ... 0102
S/N: 002545632734 1 imp =^ 0,01 m
3
BK-G..A.. with Absolute ENCODER index
/h
ENCODER VALVE Vs
M ... 0102
DE-07-MI002-PTB001
S/N: 002545632734
BK-G..E with index EI
BK-G..E..
Q
max
Q
min
V p
max
M ... 0102
S/N: ............ EI2. ...
BK-G..E with index EI4
BK-G..E
Q
max
Q
min
V p
max
class 1,5
M ... 0102
S/N: ............ EI4. ...
NG-47001BM0443 DIN EN 1359:2007
,
3
BK-G..A..
,
NG-47001BM0443 DIN EN 1359:2007
class 1,5
12345678
class 1,5 t
m
t
g
class 1,5 Valve Ve
t
m
12345678
t
g
t
b
12345678
3
m
-
3
m
-
^
...1 imp
=
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BK-G..B with index EI
........
m g b
M ... 0102
15 ATEX 1550 X
BK-G..
m
,
-
BK-G..B
Q
max
t
m
Q
min
V
p
max
class 1,5
M ... 0102
S/N: ............
t
g
t
b
p
b
EI3. ...
V
b
12345678
BK-G..E with index EI5
BK–G6 E
M ...
= –20 °C ... +55 °C
gas
201x
t
m
t
g
Valve Ve
0102
II 3Gic c IIA T1Gc
Elster GmbH, Strotheweg 1 49504 Lotte, GERMANY
Elster GmbH, Strotheweg 1 49504 Lotte, GERMANY
BK–G6 ETe
201x
Q
max
Q
min
V p
max
DE-11-MI002-PTB001
class 1,5
t
= t
amb
16ATEX1551X
S/N: ............ EI5.0x
BK-G..ETe with index EI6
1 imp
12345678
12345678
Diaphragm gas meters with integrated valve
VALVE Vx
^
...
=
Valve variants: Vs = Smart Valve Ve = bi-stable valve with electronic flow rate testing
(with electronic index EI)
ATEX identification BK-G..M, BK-G..C, BK-G..MT, BK-G..CT
Elster GmbH, Strotheweg 1
BK
D-49504 Lotte, Germany
II -/2 G c IIB TX
TÜV 11 ATEX 090370 X
Use as follows: Category, internal: none, external: 2 (Zone1).
Type of atmosphere: gases, hazes and vapours.
BK-G..M, BK-G..C, BK-G..MT, BK-G..CT with RFID passive tag
3
GB
t b
Q
max
t m
Q
min V p
max
DE-14-MI002-PTB003
class 1,5
Valve Ve
EI6.0xS/N: ...........
t
g IP
t
= t
amb
15ATEX1550X
M ...
= –25 °C ... +55 °C
gas
0102
GPRS
II -/3 G IIB T4
BK-G..E.. and BK-G..B
The following data is not necessarily specified on
the type label/index plate, but can be called up in the menu:
– specified centre temperaturetsp (for meters with
temperature conversion only), – EN 1359 registration number (if available), – firmware version.
A number of variants are available for the elec tronic indexes. The EIx.xx ID of the index variant can be found at the bottom of the type label or on the index cover next to the serial number S/N.
Further information can be found in the supplemen­tary operating instructions of the relevant index.
Use as follows: Category, internal: none, external: 2 (Zone 1).
Type of atmosphere: gases, hazes and vapours.
BK-G..A, BK-G..AT
-
Use as follows: Category, internal: none, external: 2 (Zone1).
Type of atmosphere: gases, hazes and vapours.
GB-3
Elster GmbH, Strotheweg 1
BK
D-49504 Lotte, Germany
II -/2 G IIB T4
Ui=5,5V Ii=30mA Pi=33mW Ci=140µF Li=0µF
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BK-G..E, BK-G..ET, BK-G..ETB with index EI
Elster GmbH, Strotheweg 1 49504 Lotte, GERMANY
Category  devices:
Elster GmbH, Strotheweg 1
BK
GB
Use as follows: Category, internal: 3 (Zone 2), external: 1 (Zone 0).
Type of atmosphere: gases, hazes and vapours.
For the ambient and gas temperatures of the ATEX
Zones, see illustration.
Category  devices:
BK
D-49504 Lotte, Germany
II 3/1G IIB T4
0044
= t
t
amb
TÜV 14 ATEX 143120 X
Elster GmbH, Strotheweg 1 D-49504 Lotte, Germany
= –20 °C ... +55 °C
gas
II -/3 G IIA T1
13 ATEX 1389 X
Use as follows: Category, internal: none, external: 3 (Zone2).
Type of atmosphere: gases, hazes and vapours.
BK-G..B
Elster GmbH, Strotheweg 1
BK
D-49504 Lotte, Germany
II -/2 G IIA T4
TÜV 12 ATEX 098560 X
Use as follows: Category, internal: none, external: 2 (Zone1).
Type of atmosphere: gases, hazes and vapours.
BK-G..E with EI5
0102
M ...
t
= t
amb
16ATEX1551X
= –20 °C ... +55 °C
gas
II 3Gic c IIA T1Gc
S/N: ............ EI5.0x
Use as follows: Category: 3 (Zone 2).
Type of atmosphere: gases, hazes and vapours.
BK-G..ETe with EI6
t b t m
t
g
IP
Valve Ve
M ...
t
= t
amb
EI6.0x
Use as follows: Category, internal: none, external: 3 (Zone 2).
Type of atmosphere: gases, hazes and vapours.
gas
18ATEX1678 X
GPRS
0102
II -/3 G ic c IIB T4 Gc
= –25 °C ... +55 °C

Installation

WARNING
Please observe the following to ensure that neither
persons nor the gas meter are damaged during installation and operation:
– Note the max. allowable operating pres-
surep page2 (Type label/Index plate).
– Note the permitted ambient temperaturetm and
gas temperaturetg, see page2 (Type label/ Index plate) or page9 (Technical data).
– The gas meters are certified for mechanical
environments pursuant to Class M1 of Directive 2004/22/EC. When installed, the meters must not be subject to permanent vibration such as that caused by machines in the vicinity. In case of doubt, vibration isolation must be provided. For gas meter versions BK..A, BK..E and BK..B, ClassE2 for electromagnetic environments also applies.
– The dangers of chemical reactions between
gas meter parts and the chemical substances in the environment are to be discussed by the manufacturer and the operator and must be eliminated.
– When installing the diaphragm gas meterBK with
integrated valve, make sure that no dirt particles get into the meter and thus into the valve.
– The yellow sealing sleeve protects the pressure
test point on the gas meter. It may only be opened for connecting a pressure measuring line.
– Use seals made from tested materials. Elastomer
seals or asbestos-free flat seals from Elster are
recommended. – Only use the seals once. – For meters resistant to high temperatures, only
use seals tested to be resistant to high tempera-
tures.
and measuring rangeQ
max
max
, see
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– For installation and operation, note the applicable
1 2
national regulations and the directives of the gas supply company. For Germany, the valid DVGW Code of Practice G600 (DVGW-TRGI) applies.
– Work on meters and the installation of meters
which are marked with and are installed in potentially explosive atmospheres may only be carried out by persons with appropriate qualifi­cations.
– The gas meter marked with must be in-
cluded in the equipotential bond when being
installed in a potentially explosive atmosphere,
e.g. by connecting it to a grounded pipeline. Installation must be carried out in accordance with EN60079-14.
– The gas meter marked with must be pro-
tected from falling parts.
– Avoid subjecting the unit to mechanical stress
and prevent damage. Gas meters must be in­stalled without any mechanical stress, preferably only by suspending them on the connectors. When using additional clamps, it must be en­sured that no lateral forces act on the gas meter.
These can be avoided by using flexible or supple
connection lines, for instance.
▷ If the calibration seal has been damaged or re-
moved, the gas meter is no longer approved for measurements which are subject to statutory testing.
▷ If the gas meter is stored or installed outdoors,
protect the site against rain. Condensing humid-
ity is permitted.
▷ Meters which are marked with H3 are suitable
for installation outdoors without additional pro­tection.
Remove protective caps.
Installation in the vertical position: connectors must be pointing upwards.
Note direction of flow (arrow). The gas meter must not be in contact with ma-
sonry or other parts.
Ensure that there is sufficient installation space. Ensure unobstructed view of the index.
The seal faces on the screw unions must be
clean and damage-free.
▷ Ensure that the seal is correctly seated.
Co-axial meters:
▷ The seal must be centred over the internal dia-
meter.
Note the installation position of the pressure ring.
The inner beaded edge must point upwards.
▷ Replace damaged pressure rings when replac-
ing the meter.
Co-axial and two-pipe meters:
▷ For the compression of seals and the resulting
tightening torques for the screw unions, the seal
manufacturers’ specifications must be observed.
Tightening torques for the recommended flat
seals in conjunction with screw connectors pursuant to DIN 3376-1 and 3376-2, see
www.docuthek.com → Elster-Instromet Prod-
ucts Gas measuring devices Diaphragm
meters Ergänzung für Betriebsanleitung BK, Verschraubungen und Anzugsmomente für BK­G1,6 bis BK-G25 (Supplement to BK operating
instructions, Screw unions and tightening tor-
ques forBK-G1.6 toBK-G25)(D).
Install the gas meter free of mechanical stress.
If a pulse transmitter IN-Z6x is used for pulse tapping on the gas meter marked with – see
Data sheet for pulse transmitter IN-Z6x (D,GB) www.docuthek.com→ Elster-Instromet Prod-
ucts Gas measuring devices Diaphragm
meters Pulse transmitterIN-Z61 and the
standard EN60079-14 (Explosive atmospheres).

Temperature test point

Temperature sensors can be inserted into the thermowells for measuring the gas temperature
in the meter housing.
Secure each of the temperature sensors using
the capstan screw provided.

Pressure test point on housing (optional)

GB
When using an elastomer seal, always use a pressure ring (shape A).
GB-5
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Connecting the piping

1
2
3
4
5
1
6
7
2
3
4
5
2
WARNING
In order to ensure that the gas meter is tight:
– The pressure test nipple must not be twisted,
bent, or otherwise manipulated.
– When installing, always secure the pressure test
nipple using a suitable spanner.
GB
Functional safety and reliability are ensured only if
the material combination of the screw connector and the pressure line are inter-matched.
Only use the olive and the attached union nut supplied. The olive is secured to the sealing sleeve.
When re-ordering, use original Parker EO pro­gressive ring fittings PSR/DPR.
1
4
Use corrosion-resistant, seamless precision steel tube pursuant to DINEN10305-4 (external di­ameter 6mm, material E235= 1.0308). For other materials, use a suitable adapter and note the Parker/EO recommendations.
▷ Install pipes free of mechanical stress.
6
8 Screw on the union nut by hand as far as it will
go.
At the same time, press the end of the pipe firmly against the stop.
9 Mark the position of the union nut and tighten
with about 1½ turns.
2
3
5
7
0 Once the installation and tightness test are com-
plete, see page6 (Tightness test), protect the pressure test point against external access with the sealing sleeve and the seal.

Pressure test point on outlet connector (optional)

BS4161-compliant pressure test nipple
Use a 10 mm spanner to release/tighten the test point screw.
The test nipple is secured to prevent it turning
with the screw.

Opening the test nipple

Remove the screw from the test nipple com-
pletely.
▷ The gas connection is open.
Closing the test nipple  Insert the screw by hand as far as possible.Tighten the screw with a torque of 3Nm +
0.5Nm.
Check for tightness, see page6 (Tightness
test).
WARNING
If the test nipple has unexpectedly come loose,
the gas meter must be regarded as damaged and
must be replaced.

Tightness test

Check the pipework for leaks prior to installa­tion of the gas meter, in case the pipework is tested with a greater test pressure than the max. allowable operating pressurep meter. Otherwise, the installed gas meter may be damaged.
▷ If a valve is integrated in the diaphragm gas me-
terBK, see page3 (Diaphragm gas meters with integrated valve), this must be opened for the tightness test.
▷ Ensure the customer’s consumers are closed.
Apply the test pressure slowly to the gas meter.
for the gas
max
When reinstalling, the union nut will be turned to the original position and then further tightened through approx. 30°.
▷ If a pressure measuring line has been retrofitted
to the diaphragm gas meter, check this connec­tion for tightness.
GB-6
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2
2
– The intrinsically safe electrical circuits of pulse
transmitters IN-Z61 and IN-Z64 are consid-
ered to be grounded at voltages > 10 V, if the plug connector housings are connected to the ground potential.
– The intrinsically safe electrical circuits of pulse
If the BS4161-compliant test nipple on the meter has been opened and then closed again, check this connection for tightness.
transmitters IN-Z61, IN-Z62 and IN-Z65 are to
be considered as non-grounded.
BK-G..A with Absolute ENCODER
GB
indexAE/Z6
Interface description for gas meters with ENCODER index– see Specification (GB)→ www.docuthek.com
Elster-Instromet Products Archive → Gas
measuring devices.
After the tightness test, slowly vent the gas meter. 4 If a pressure measuring line has been retrofitted
to the diaphragm gas meter, protect the pressure test point against external access with a sealing sleeve and a seal.
BK-G..A with Absolute ENCODERAE/AE and communications moduleACM
If the diaphragm gas meter BK-G..A is fitted with communications module ACM, you can find further information ...
– for commissioning in the Communications mod-
ule ACM M-BUS WIRE, ACM SCR+ WIRE... op-

Commissioning

Once the tightness test has been successfully com­pleted, the gas meter is ready for operation.
▷ Slowly open the manual valve.
Interfaces
Diaphragm gas meters BK are equipped with dif­ferent interfaces, depending on the index version. Only original Elster spare parts may be used in the following cases:
– if devices are marked with
,
– if metrological data subject to statutory control
is transferred via the interface.
▷ For statutory, metrological use, add-on compo-
nents must be sealed. Permitted accessories, see page 8 (Accessories).
BK-G..M with mechanical index
For pulse tapping, the pulse transmitterIN-Z6x can be connected. For further information regarding usage and the interface – see Data sheet for pulse transmitter IN-Z6x → www.docuthek.com Elster- Instromet Products→ Gas measuring devices→ Diaphragm meters Pulse transmitterIN-Z61.
WARNING
The following safety instructions apply for meters
which are marked with and fitted with a pulse transmitter IN-Z6x:
– Only for connection to intrinsically safe electrical
circuits, see page 9 (Technical data).
– If the intrinsically safe electrical circuit is ground-
ed from a technical-safety point of view, the intrinsically safe equipotential bond must cover
erating instructions or in the Communications module ACM WAVE SYSTEM RF operating in­structions (D/GB/SK/NL) www.docuthek.com
Elster-Instromet Products Smart meter-
ing ACM: communication modules.
– on the protocols in the corresponding docu-
ments at www.docuthek.com Elster-Instromet
Products Smart metering AE: protocol
variants.
BK-G..E, BK-G..ETB, BK-G..ETe(B), BK-G..B with electronic index
For further commissioning of diaphragm gas me­ters with electronic index – see the operating in­structions of the respective electronic indexes www.docuthek.com → Elster-Instromet → Products
Smart metering Electronic index.
BK-G... with RFID passive tag
WARNING
On meters which are marked with and fitted with an RFID passive tag, the transmission capacity of the RFID reader must not exceed the maximum limits set out in EN 60079-0.
Diaphragm gas meters BK with integrated valve
In the event that the diaphragm gas meter BK is fitted with an integrated valve, see page3 (Diaphragm gas meters with integrated valve) for designation, the gas supply can be connected or disconnected remotely. Unless otherwise agreed, the valve is open on delivery as standard.
the entire area of installation.
– EN 60079-14 is to be noted when installing
pulse transmitters.
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WARNING
– The grid operator is responsible for the safe
remote shut-down and restart of the diaphragm gas meter.
– The integrated valve does not assume the func-
tions of a safety shut-off valve.
Should the diaphragm gas meterBK be ordered
GB
with a valve, but without control electronics to be complemented by a third party, the technical data of the control interface is to be requested from ElsterGmbH and observed.
The manufacturer of the control electronics is responsible for creating the conditions required for safe operation of the valve. Instructions on commissioning and operation are to be taken from the operating instructions for the control
electronics.
... with valve variant Ve
Notes on the function can be found in the operat-
ing instructions of the electronic index. Technical
data, see page 9 (Technical data).
... with valve variant Vs (Smart Valve)
WARNING
– Depending on national regulations, a limited
and technically safe gas flow rate in the cus­tomer’s open consumer piping is allowed, see page9 (Technical data).
– Assessment of the non-critical gas flow rate with
regard to amount and duration, which occurs when the valve is released, is to be carried out by the grid operator.
– The minimum operating pressure on the inlet
must not be undershot, see page9 (Techni­cal data). Otherwise, when the valve is released and if the customer’s consumer piping is open at the same time, the valve may be completely opened.
“Smart Valve” valve function
The “Smart Valve” is switched remotely by the data management system. The valve first switches to the “Released” position. From the “Released” posi­tion, the valve automatically switches to the “Open” position, if the downstream installation is tight.
Released
The “Smart Valve” opens an internal bypass and releases a minimum gas flow into the customer’s closed consumer piping. Pressure equalization takes place between the inlet and outlet side of the valve.
Open
▷ Following pressure equalization, the valve auto-
matically opens by spring force and fully releases the gas supply. If consumers of the customer are open, pressure equalization cannot occur and the valve remains in the “Released” position and continues to release only the minimum gas flow rate of the bypass.
Closed
The valve and the bypass are closed in the event
of remote shut-down.
▷ All valve positions are kept when de-energized.

Maintenance/Removal

Gas meters BK-G1.6 to 25 from Elster are mainte-
nance-free (constraints for BK-G...E... and BK-G...B).
▷ When used for custody transfer measurements,
recalibration must be carried out in accordance with national directives.
If the screw unions are loosened for maintenance work or retesting, replace the seals.
▷ After the gas meter has been removed, immedi-
ately close the connectors with protective caps in order to prevent ingress of dirt particles.
For meters with electronic indexes(BK-G...E... and BK-G...B), it may be necessary to change the battery, see “Operating instructions for op­erators and installers” for the corresponding electronic index.
WARNING
A certain amount of gas may remain in the gas
meter. Taking into consideration the risk of explo­sion, it is important to adopt safety measures, e.g.:
– Following removal of the gas meter, purge it
thoroughly with inert gas.
– For transporting the gas meter with gas residue,
use a vehicle with an open or a ventilated load­ing area.
– The indexes must not be opened in an explo-
sion-hazard area even for maintenance and repair. Opening of the service cover on the electronic index, e.g. to change the battery, is permitted– see “Operating instructions for operators and installers” for the corresponding electronic index.
– Meters which are installed in a potentially ex-
plosive atmosphere may only be cleaned using a damp cloth to avoid static electricity charge.

Accessories

We recommend using Elster GmbH accessories only.
Pulse transmitters of the IN-Z6x series
Also for devices which are marked with
IN-Z6 (Part No. 32319615)
Retrofit kit with connection cable –
Order No. 72910109
Retrofit kit without connection cable –
Order No. 72910114
IN-Z6 (Part No. 32319616)
Shipping unit – Order No. 32447303
IN-Z6 (Part No. 32319617)
Retrofit kit – Order No. 72910110
Retrofit kit with cable socket – Order No. 72910112
GB-8
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IN-Z64 (Part No. 32319618) Retrofit kit – Order No. 72910117 IN-Z65 (Part No. 32319762) Retrofit kit – Order No. 72910180 IN-Z68 Part/Order No. 32320278 Interface parameters, see page 9 (Technical data).
▷ As regards explosion protection, pulse transmit-
ters IN-Z6x are classified as simple electrical apparatus and must thus not be marked.
Other communication modules
Meters which are marked with
may only be ret­rofitted with communications modules certified in accordance with 2014/34/EU and which correspond to the appropriate interface parameters (see page 9 (Technical data)).

Technical data

Diaphragm gas meter BK
Gas type: natural gas, town gas, propane and butane, as gases of the first to third families pursuant to DINEN437:2003 (DVGW Code of PracticeG260).
The following technical data can be found on the
type label/index plate:
– max. allowable operating pressurep – measuring range: Q – max. allowable ambient temperature ranget
min/Qmax
– max. allowable gas temperature rangetg* – cyclic volumeV
For meters with temperature conversion only:
– base gas temperaturet – specified centre temperaturetsp**
b
Other technical data:
– transitional flow rate Qt= 0.1xQ – max. allowable storage temperature range:
-25 to +60°C
– mechanical environment class: M1
Observe installation conditions! See 4 (In­stallation).
– electromagnetic environment class: E2
Supplementary notes:
* If operated within the gas temperature range, the
measurement error still lies within the required
error limits. If no gas temperature tg is specified
on the index plate, the following applies: tg=tm.
** The specified centre temperaturetsp of the BK-
G...E...series and BK-G...B meters is not stated on the index plate, but can be called up in the display using the menu.
max
m
max
Diaphragm gas meters BK with pressure test point
Pressure test point: 24° olive fitting to ENISO8434-1, L6x M12x1.5-St.
Diaphragm gas meters BK with explosion protection
For meters of Category 1 which are marked with
, the ambient temperature t temperature t between -20°C and +55°C. In this case, the admis-
are limited to a maximum range
gas
and the gas
amb
sible temperatures are to be taken from the ATEX identification sticker.
The following parameters apply for meters BK-G..M,
BK-G..C, BK-G..MT, BK-G..CT with pulse transmit­ter IN-Z6x:
IN-Z6, IN-Z6, IN-Z6, IN-Z64, IN-Z65:
Ui = 30 V Ii = 50 mA Pi = 250 mW C
, Li negligible
i
IN-Z68:
= 8 V
U
i
Ii = 10 mA
The following interface parameters apply for
BK-G...A/AT:
= 5.5 V
U
i
Ii = 30 mA Pi = 33 mW Ci = 140 µF Li = 0 µH
Diaphragm gas metersBK with integrated
“Smart Valve”Vs
Not suitable for highly contaminated gases, e.g. town gas. Opening time (from closed to open/released state):
≤ 4 s.
Closing time: ≤ 0.5 s. Min. operating pressure: 17.5mbar. Allowed leakage flow in the customer’s piping: valve released: max. 13 l/h at 35 mbar, valve closed: max. 5 l/h.
Diaphragm gas meters BK with integrated valve Ve
Opening time incl. flow rate measurement: < 2 min. Opening and closing times: approx. 5 s (max. 15s). Max. operating pressure for valve operation:
100mbar.
▷ The operating pressure of the gas meter can be
higher if necessary.
Leakage flow (closed): max. 1 l/h up to 100 mbar.
GB
GB-9
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Declarations of conformity

Scans of all valid Declarations of conformity – see www.docuthek.com → Elster-Instromet
Diaphragm gas meters BK-G..M, BK-G..C, BK-G..MT, BK-G..CT (without ATEX declaration)
GB
GB-10
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Diaphragm gas meters BK-G..M, BK-G..C, BK-G..MT, BK-G..CT with ATEX declaration
GB
GB-11
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Diaphragm gas meters BK-G..M, BK-G..C, BK-G..MT, BK-G..CT with RFID passive tag and ATEX declaration
GB
GB-12
Page 13
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Diaphragm gas meters BK-G..A, BK-G..AT
GB
GB-13
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ATEX legend

= Marking of explosion protection
II = Equipment group ll for general industries
(with the exception of mines)
-/2 = Category: internal: none
external: Category 2 (Zone 1)
GB
-/3 = Category: internal: none
external: Category 3 (Zone 2) 3 = Category 3 (Zone 2) 3/1 = Category: internal: Category 3 (Zone 2) external: Category 1 (Zone 0) G = Type of atmosphere: gases, hazes and
vapours
ic = Type of ignition protection: intrinsic safety
for Zone 2
c = “Constructional safety” explosion protec-
tion type
IIB, IIA = Explosion group for gases TX = No intrinsic heating T1 = Temperature class: maximum allowable
surface temperature450°C
T4 = Temperature class: maximum allowable
surface temperature135°C
T6 = Temperature class: maximum allowable
surface temperature 85°C
Gc = Equipment protection level for Zone 2 Ta = Ambient temperature

Logistics

Transport
Diaphragm gas meters are always to be transported in the upright position. On receipt of the product, check that the delivery is complete, see page2 (Part designations). Report any transport damage immediately.
Storage
Diaphragm gas meters are always to be stored in the upright position and in a dry place. Ambient tem­perature: see page9 (Technical data).
Disposal
Meters with electronic components:
WEEE Directive 0/9/EU – Waste Electrical and Electronic Equipment Directive
At the end of the product life, dispose of the packaging and product in a corresponding recycling centre. Do not dispose of the unit
with the usual domestic refuse. Do not burn the product. On request, old units may be returned carriage paid to the manufacturer, see page14 (Contact), in accordance with the relevant waste legislation re­quirements.

Contact

Contact
Germany
Elster GmbH
Strotheweg 1 49504 Lotte Tel. +49 541 1214-0
Fax +49 541 1214-370
info-instromet-GE4N@honeywell.com
www.elster-instromet.com
United Kingdom
Elster Metering Limited Paton Drive
Tollgate Business Park
Beaconside Stafford, ST16 3EF
Tel. +44 1785 275200
Fax +44 1785 275300 solution.elster@honeywell.com
www.elster-instromet.com
Ireland
Active Energy Control Ltd.
Unit 4, Clare Marts Quin Road Ennis, Co. Clare
Tel. +353 65 6840600
Fax +353 65 6840610 info@aec.ie
www.aec.ie
in the interests of progress.
We reserve the right to make technical modifications
GB-14
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