SICK NAMUR LFV 310 Instructions page 19

If the sensors of LFV 310/330.C******N/W** are operated at temperatures higher than those
specified in the above table, please make sure by means of appropriate measures that there is no
danger of ignition from hot surfaces. The temperature on the electronics/housing must not exceed
the values specified in the below table.
Please make sure that the sensor (also in case of failure) does not generate heat itself. Responsi-
bility for safe operation of the equipment, with respect to pressures/temperatures of the materials
used, rests with the operator.
On the sensor - category 2G
Temperature class
Ʋ T6
Ʋ T5
Ʋ T4
Ʋ T3 without temperature adapter
Ʋ T3 with temperature adapter
Ʋ T2, T1 with temperature adapter
If the sensors of LFV 310/330.C******N/W** are operated at temperatures higher than those
specified in the above table, please make sure by means of appropriate measures that there is no
danger of ignition from hot surfaces. The temperature on the electronics/housing must not exceed
the values specified in the below table.
On the electronics - category 1G
Temperature class
Ʋ T6
Ʋ T5, T4, T3, T2, T1
On the electronics - category 1/2G or 2G
Temperature class
Ʋ T6
Ʋ T5
Ʋ T4, T3, T2, T1
Permissible operating pressure in the area of the measuring probe
Category 1G or 1/2G
Operating pressure
Category 2G
Operating pressure
Information:
The application conditions mentioned before also apply to LFV 330.C******N/W** with lock
fitting ARV-SG63.2** (P
T 250 °C).
max.
LFV 310/330
-40 ... +85 °C
-40 ... +100 °C
-40 ... +135 °C
-40 ... +150 °C
-50 ... +200 °C
-50 ... +250 °C
-20 ... +51 °C
-20 ... +60 °C
-40 ... +67 °C
-40 ... +82 °C
-40 ... +90 °C
0.8 ... 1.1 bar
Vacuum ... 64 bar (when applicable, take nominal pres-
sure of the process connection element into account)
16 bar, T 150 °C) and lock fitting ARV-SG63.3** (P
max. max.
64 bar,
max.
7