KROHNE VARIFLUX IFS 6000 EN - Manual (Page 11)

11
10 Technical data
Size/type DN 2.5 - 80 and 1 / 10 ” - 3”
Available connections see page 3
Electrical conductivity
≥
5
µ
S/cm (
≥
20
µ
S/cm for demineralized water)
Ambient temperature
Standard
-25 to +60 °C / -13 to +140 °F
Hazardous duty versions -20 to +40 °C / - 2 4 to +104 °F
Max. permissible operating data
Operating pressure / product temperature
see table “limits” on next page
Vacuum load 0 mbar abs. / 0 psia
Insulation class of field coils H
Electrode design permanently fitted (
≥
DN 25 /
≥
1” surface polished)
Power for field coils > 60 V from signal converter
Grounding rings standard for flanged connections
Protection category (IEC 529/EN 60 529) IP 67, equivalent to NEMA 6
Materials
Measuring tube
stainless steel 1.4301 / 304-AISI
Liner clear, virgin Teflon ® -PFA, FDA-approved
DN 2.5 - 10 mm / 1 / 10 ” - 3 / 8 ” reinforced with sintered metal bearing bush
DN 15 - 80 mm / 1 / 2 ” - 3” reinforced with steinless steel mesh
Electrodes
Standard
Hastelloy C4
Special version stainless steel 1.4571/316 Ti-AISI, titanium,
tantalum, platinum
others on request
Connections
Flanges to DIN 2501
Flanges to ANSI B 16.5
Standard: stainless steel 1.4301/304-AISI
Flanges to JIS 2210
Special version: stainless steel 1.4404/316L-AISI
Aseptic weld-on connection
for pipes to DIN 11 850
for pipes to ISO 2037
Dairy screw connection and tube nozzles (option)
to DIN 11 851
stainless steel 1.4404/316L-AISI
Screwed pipe connection to SMS 1145
Screwed pipe connection to ISO 2853
Clamp joint to ISO 2852
Housing
DN 2.5 - 15 mm /
1 / 10 ” - 1 / 2 ” stainless steel 1.4462 Duplex
DN 25 - 80 mm / 1” - 3” stainless steel 1.4301/304-AISI
Terminal box
Standard
die cast aluminium, paint finish
Special version stainless steel 1.4301/304-AISI,
others on request
Grounding rings (only for flange versions) stainless steel 1.4571/316 Ti-AISI,
others on request
Teflon ® is a registered trademark of Du Pont
}
}