2
DEVICE DESCRIPTION
10
OPTISWIRL 4070
www.krohne.com
05/2016 - 4001268803 - AD OPTISWIRL 4070C Ex-II3G R04
Permissible product and ambient temperatures with signal converter or sensor connection box
Permissible product and ambient temperatures with signal converter or sensor connection box
Permissible product and ambient temperatures with signal converter or sensor connection box
Permissible product and ambient temperatures with signal converter or sensor connection box
installed above the measuring unit
installed above the measuring unit
installed above the measuring unit
installed above the measuring unit
As shown in the figure below, the measuring device should be installed so that it is protected
from direct sunlight.
Maximum permissible product and ambient temperatures per temperature class in
°
C
Maximum permissible product and ambient temperatures per temperature class in
°
F
Temperature class
T4
T3
T2
…
T1
T
amb
in
°
C
50
60
40
50
60
40
50
60
Size
DN15
…
25
110
110
175 175
1
125
1
235
1
180
1
125
1
DN40
…
50
110
110
175 165
115
215
165
115
DN65
…
100
110
110
175 155
110
200
155
110
DN150...300
110
110
175 175
130
1
240
1
190
1
130
1
1
Permanent service temperature of connecting cable and cable entry min. 80
°
C
Temperature class
T4
T3
T2
…
T1
T
amb
in
°
F
122
140
104
122
140
104
122
140
Size
DN15
…
25
230
230
347 347
1
257
1
455
1
356
1
257
1
DN40
…
50
230
230
347 329
239
419
329
239
DN65
…
100
230
230
347 311
230
392
311
230
DN150...300
230
230
347 347
266
1
464
1
374
1
266
1
1
Permanent service temperature of connecting cable and cable entry min. 176
°
F
