GB-7
D
GB
F
NL
I
SK
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
max
–
measuring range: Q
min
/Q
max
–
max. allowable ambient temperature range t
m
–
max. allowable gas temperature range t
g
*
–
cyclic volume V
For meters with temperature conversion only:
–
base gas temperature t
b
–
specified centre temperature t
sp
**
Other technical data:
–
transitional flow rate Q
t
= 0.1 x Q
max
–
max. allowable storage temperature range:
-25 to +60°C
–
mechanical environment class: M1
–
electromagnetic environment class: E2
Supplementary notes:
*
If operated within the gas temperature range,
the measuring error still lies within the required
error limits. If no gas temperature t
g
is specified
on the index plate, the following applies: t
g
= t
m
.
** The specified centre temperature t
sp
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.
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
Max. allowable ambient temperature range t
m
/gas
temperature range t
g
: -25 to +55°C; for constraints,
see type label/index plate.
In addition, the following interface parameters apply
for BK-G...A/AT:
U
i
= 5.5 V
I
i
= 30 mA
P
i
= 33 mW
C
i
= 140 µF
L
i
= 0 µH
Diaphragm gas meters BK with integrated
valve Vp
Opening time: ≤ 4 s.
Closing time: ≤ 0.5 s.
Max. operating pressure: 100 mbar.
Leakage flow (closed): max. 5 l/h.
▷
The specified leakage flow rate is also complied
with at pressures > 100 mbar (e.g. in the event
of a fault).
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.
Declaration of conformity
Scan of the following Declarations of conformity – see
www.docuthek.com
Diaphragm gas meters BK-G..M, BK-G..C,
BK-G..MT, BK-G..CT
We, the manufacturer, hereby declare that the prod-
ucts labelled accordingly comply with the require-
ments of the listed Directives and Standards:
–
MID
EC Directive: 2004/22/EC – MID
Standard:
DIN EN 1359:2007 (EN 1359:1998+A1:2006)
EC type-examinations:
DE-07-MI002-PTB001, DE-07-MI002-PTB002.
The production is subject to the surveillance
procedure pursuant to 2004/22/EC, Annex D,
Physikalisch-Technische Bundesanstalt (German
National Metrological Institute),
Notified Body 0102.
Markings:
M...
0102, DE-07-MI002-PTB001 or
DE-07-MI002-PTB002
After the “M”, the year of construction is given.
–
ATEX (only valid if marked on the meter)
EC Directive: 94/9/EC – ATEX
Standards:
EN 13463-1:2009
EN 13463-5:2011
Tests and inspections:
TÜV NORD CERT GmbH, Statement of conform-
ity – No. TÜV 11 ATEX 090370 X.
The production is subject to the conformity
assessment procedure pursuant to 94/9/EC,
Annex VIII.
Markings:
II -/2 G c IIB TX.
Elster GmbH
