KROHNE OPTIFLEX 1300C EN - Manual (Page 19)

INSTALLATION
3
19
OPTIFLEX 1300 C
www.krohne.com 03/2014 - 4000172306 - HB OPTIFLEX 1300 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 3-4: Pressure and temperature ranges
1 Process connection temperature
The process connection temperature must stay in the temperature range of the gasket material unless the device is
a High-Temperature version. Refer to the table "Temperature ranges for gaskets" that follows and to "Technical data"
on page 130.
Ex devices: see supplementary operating instructions
2 Ambient temperature for operation of the display
-20...+60°C / -5...+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...+176°F
Ex devices: see supplementary operating instructions
4 Process pressure
Refer to the table "Process pressure limits" that follows and "Pressure/temperature table for probe selection" on
page 136.
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.