3.4 Pre-installation requirements
•
Make sure that there is sufficient space on all sides.
•
Protect the signal converter from direct sunlight. If necessary, install the weather protection
accessory.
•
Do not subject the signal converter to heavy vibrations. The devices are tested for vibration
and agree with EN 50178 and IEC 60068-2-6.
3.5 How to prepare the tank before you install the device
3.5.1 Pressure and temperature ranges
INFORMATION!
Obey the precautions that follow to make sure that the device is correctly installed.
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.
19
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Instruction Manual
Tek-Flex
4100A