KROHNE OPTIWAVE 7300C EN - Manual (Page 21)

INSTALLATION
3
21
OPTIWAVE 7300 C
www.krohne.com 03/2014 - 4000172405 - HB OPTIWAVE 7300 R07 en
3.5 How to prepare the tank before you install the device
3.5.1 Pressure and temperature ranges
CAUTION!
To avoid measuring errors and device malfunction, obey these precautions.
Figure 3-3: Pressure and temperature ranges
1 Flange temperature
FKM/FPM gasket: -40...+200°C / -40...+390°F; Kalrez ® 6375 gasket: -20...+200°C / -4...+390°F;
EPDM gasket: -50...+150°C / -58...+300°F
Depends on the antenna type. Refer to the table that follows.
Ex devices: see supplementary operating instructions
2 Ambient temperature for operation of the display
-20...+60°C / -4...+140°F
If the ambient temperature is not between these limits, the display screen switches off automatically
3 Ambient temperature
Non-Ex devices: -40...+80°C / -40...+175°F
Ex devices: see supplementary operating instructions
4 Process pressure
Depends on the antenna type. Refer to the table that follows.
WARNING!
The process connection temperature range must agree with the temperature limits of the
gasket material. The operating pressure range is subject to the process connection used and the
flange temperature.
Antenna type Maximum process connection
temperature
Maximum operating pressure
[°C] [°F] barg psig
PP Drop +100 +210 16 232
PTFE Drop +150 +300 40 580
Hygienic +150 +300 10 145
Horn / Sheet metal horn +150 (+200) 1 +300 (+390) 1 40 (100) 2 580 (1450) 2
1 Standard max. process connection temperature: +150°C / +300°F. Optional max. process temperature: +200°C /
+390°F.
2 Standard max. operating pressure: 40 barg / 580 psig. Optional max. operating pressure: 100 barg / 1450 psig.