User Manual

8 TECHNICAL DATA
90
OPTIWAVE 7400-24 C
www.krohne.com 12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
Process pressure Drop antenna (PP):
Drop antenna (PP):Drop antenna (PP):
Drop antenna (PP):
-1…16 barg / -14.5…232 psig;
subject to the process connection used and the flange temperature. For more data,
refer to Guidelines for maximum operating pressure on page 97.
Drop antenna (PTFE):
Drop antenna (PTFE):Drop antenna (PTFE):
Drop antenna (PTFE):
-1…40 barg / -14.5…580 psig;
subject to the process connection used and the flange temperature. For more data,
refer to Guidelines for maximum operating pressure on page 97.
Drop antenna (PEEK):
Drop antenna (PEEK):Drop antenna (PEEK):
Drop antenna (PEEK):
-1...40 barg / -14.5…580 psig;
subject to the process connection used and the flange temperature
Hygienic antenna (PEEK):
Hygienic antenna (PEEK):Hygienic antenna (PEEK):
Hygienic antenna (PEEK):
-1…10 barg / -14.5…145 psig;
subject to the process connection used and the flange temperature
Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:
Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:
Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:
Standard: -1…40 barg / -14.5…580 psig;
Option: -1…100 barg / -14.5…1450 psig;
subject to process connection used and flange temperature
Other conditions
Other conditionsOther conditions
Other conditions
Dielectric constant (ε
r
) Direct mode: ≥1.8
TBF mode: ≥1.1
Refer also to "Technical data: Antenna selection".
Ingress protection IEC 60529: IP 66/67
NEMA 250: NEMA type 4X (housing) and type 6P (antenna)
Maximum rate of change 10 m/min / 32.8 ft/min
Installation conditions
Process connection size The nominal diameter (DN) should be equal to or larger than the antenna diameter.
If the nominal diameter (DN) is smaller than the antenna, either:
– provide the means to adapt the device to a larger process connection on the tank
(for example, a plate with a slot), or
– use the same process connection, but remove the antenna from the device before
installation and fit it from inside the tank.
Process connection position Make sure that there are not any obstructions directly below the process
connection for the device. For more data, refer to Installation on page 23.
Dimensions and weights For dimensions and weights data, refer to Dimensions and weights on page 98.
Materials
Housing Standard: Polyester-coated aluminium
Option: Stainless steel (1.4404 / 316L)
Wetted parts, including antenna Standard (Metallic Horn antenna): Stainless steel (1.4404 / 316L)
Option for MetallicHorn antenna: HASTELLOY® C-22® (2.4602) 2
Standard for Drop antenna: PTFE; PP; PEEK
Option for Drop antenna: PP, PTFE or PEEK flange plate protection
Hygienic antenna: PEEK – this material agrees with FDA regulations
Process connection Standard for Metallic Horn and Drop antennas:
Stainless steel (1.4404 / 316L) – a PP, PTFE or PEEK flange plate protection option
is also available for the Drop antenna
Standard for Hygienic antenna: PEEK
Option: HASTELLOY® C-22® (2.4602) – for Horn antennas only