Device description – KROHNE OPTISWIRL 4070 ATEX II2G EN User Manual
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DEVICE DESCRIPTION
8
OPTISWIRL 4070
www.krohne.com
04/2013 - 4000077105 MA OPTISWIRL4070 II2G AD R05 en
Permissible product and ambient temperatures with converter or connection box sensor
installed above the measuring section
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 T6
T5
T4
T3
T2 … T1
T
amb
in °C
60
60
50
60
40
50
60
40
50
60
Nominal size
DN15 … 25
60
75
110
110
175 175
1
125
1
235
1
180
1
125
1
DN40 … 50
60
75
110
110
175 165
115
215
165
115
DN65 … 100
60
75
110
110
175 155
110
200
155
110
DN150 ... 300
60
75
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 T6
T5
T4
T3
T2 … T1
T
amb
in °F 140
140
122
140
104
122
140
104
122
140
Nominal size
DN15 … 25
140
167
230
230
347 347
1
257
1
455
1
356
1
257
1
DN40 … 50
140
167
230
230
347 329
239
419
329
239
DN65 … 100
140
167
230
230
347 311
230
392
311
230
DN150 ... 300
140
167
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
AD_OPTISWIRL4070_II2G_R05_en_077105_PRT.book Page 8 Tuesday, April 23, 2013 2:17 PM