Device description – KROHNE OPTISWIRL 4070 ATEX II2G EN User Manual
Page 9
DEVICE DESCRIPTION
2
9
OPTISWIRL 4070
www.krohne.com
04/2013 - 4000077105 MA OPTISWIRL4070 II2G AD R05 en
Permissible product and ambient temperatures with converter / connection box
sensor installed laterally or below the measuring section
Maximum permissible product and ambient temperatures per temperature class in °C
Maximum permissible product and ambient temperatures for temperature class in °F
Maximum permissible product and ambient temperatures for devices with painted
measuring sections (all sizes)
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
145
1
240
1
205
1
145
1
DN40 … 50
60
75
110
110
175
175
1
135
1
240
1
205
1
135
1
DN65 … 100
60
75
110
110
175
175
1
130
1
240
1
195
1
130
1
DN150 ... 300
60
75
110
110
175
175
1
150
1
240
1
235
1
150
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
293
1
464
1
401
1
293
1
DN40 … 50
140
167
230
230
347
347
1
275
1
464
1
401
1
275
1
DN65 … 100
140
167
230
230
347
347
1
266
1
464
1
383
1
266
1
DN150 ... 300
140
167
230
230
347
347
1
302
1
464
1
455
1
302
1
1 Continuous operating temperature of the connecting cable and cable entry min. 176°F
Temp. Class
T6
T5
T4 … T1
T
amb
in
60°C
140°F
60°C
140°F
60°C
140°F
T
M
60°C
140°F
75°C
167°F
90°C
194°F
AD_OPTISWIRL4070_II2G_R05_en_077105_PRT.book Page 9 Tuesday, April 23, 2013 2:17 PM