6 limits, 7 grounding, For meter size size dn 2.5 - 10 – KROHNE VARIFLUX 6000 EN User Manual
Page 8: Variflux 6000 compact systems
8
Installation instructions VARIFLUX 6000
6 Limits
Max. operating pressure in bar (psig) at product temperature of …
Size of connections
Type of connections
mm inch
Pressure rating
of connections
< 40 °C
(< 104 °F)
< 100 °C
(< 212 °F)
< 120 °C
(< 248 °F)
< 140 °C
(< 284 °F)
DN 10* - 40
–
PN 40
–
40
(580)
40
(580)
40
(580)
40
(580)
DN 50 - 80
–
PN 25
–
25
(360)
25
(360)
25
(360)
25
(360)
DN 100
–
PN 16
–
16
(230)
16
(230)
16
(230)
16
(230)
Aseptic weld on for pipes * *
to DIN 11850
DN 125 - 150
–
PN 10
–
10
(145)
10
(145)
10
(145)
10
(145)
12* - 37.6
0.47* - 1.48
PN 40
580 psig
40
(580)
40
(580)
40
(580)
40
(580)
48.6 - 72.9
1.91 - 2.87
PN 25
360 psig
25
(360)
25
(360)
25
(360)
25
(360)
97.6
3.84
PN 16
232 psig
16
(230)
16
(230)
16
(230)
16
(230)
Aseptic weld on for pipes
to ISO 2037
110.3 - 135.7
4.34 - 5.34
PN 10
145 psig
10
(145)
10
(145)
10
(145)
10
(145)
DN 10* - 40
–
PN 40
–
40
(580)
40
(580)
40
(580)
40
(580)
DN 50 - 80
–
PN 25
–
25
(360)
25
(360)
25
(360)
25
(360)
DN 100
–
PN 16
–
16
(230)
16
(230)
16
(230)
16
(230)
Dairy screw to DIN 11851
DN 125 - 150
–
PN 10
–
10
(145)
10
(145)
10
(145)
10
(145)
Screwed to SMS 1145
25 - 100
–
PN 6
–
6
( 90)
6
( 90)
6
( 90)
6
( 90)
DN 25 - 40
–
PN 40
–
40
(580)
40
(580)
40
(580)
40
(580)
DN 50 - 80
–
PN 25
–
25
(360)
25
(360)
25
(360)
25
(360)
DN 100
–
PN 16
–
16
(230)
16
(230)
16
(230)
16
(230)
Flanges to DIN 11864-2A
DN 125 - 150
–
PN 10
–
10
(145)
10
(145)
10
(145)
10
(145)
12* - 51
1½” - 2.0”
PN 16
232 psig
16
(230)
16
(230)
16
(230)
–
–
63.5 - 76.1
2½” - 3.0”
PN 10
145 psig
10
(145)
10
(145)
10
(145)
–
–
100
4”
PN 8
115 psig
8
(115)
8
(115)
8
(115)
–
–
Clamp joint to ISO 2852
125 - 150
5” - 6”
PN 5
72 paig
5
( 72)
5
( 72)
5
( 72)
–
–
DN 25 - 50
–
PN 16
–
16
(230)
16
(230)
16
(230)
16
(230)
Clamp joint to DIN 32676 * *
DN 65 - 100
–
PN 10
–
10
(145)
10
(145)
10
(145)
10
(145)
25 - 80
1” - 3”
PN 20
280 psig
20.5
(295)
20.5
(295)
20.5
(295)
–
–
Clamp joint to TRI-CLOVER
100
4”
PN
12 174
psig 13.8 (200) 13.8 (200) 13.8 (200) – –
Vacuum load
all versions and sizes
all versions and
0 mbar abs. (0 psia)
pressure
ratings
*
for meter size size DN 2.5 - 10 /
1
/
10
” -
3
/
8
”
**
max. temperature are 150 °C (302 °F)
7 Grounding
• Warning: All flowmeters must be properly grounded to avoid personnel shock hazard.
• The ground conductor should not transmit any interference voltages, therefore do not ground
any other electrical devices together with this conductor.
VARIFLUX 6000 compact systems
Supply power > 50 V AC
• Grounding is via the PE protective ground conductor incorporated in the power supply
cable, see also Section “Connection to power” in the installation and operating instructions for
the signal converter.
• EXCEPTION: Do not connect up the PE protective ground conductor in the terminal box
if e.g. compact units are operated in the proximity of electric furnaces, electrolysis plants, etc.,
and large potential differences occur in the pipeline system. An FE functional ground must
simultaneously take over the function of the protective conductor (combined protective /
functional ground). Refer to appropriate national codes for specific requirements for this type
of installation, which may require the addition of a ground fault detection circuit interrupter.
Supply power 24 V AC or DC
• Protective separation (PELV) must be ensured (VDE 0100 / VDE 0106 or IEC 364 / IEC 536 or
equivalent national regulations).
• An FE functional ground conductor must be connected for measurement reasons.