2 SPECIAL CONDITIONS
24
OPTIMASS / 400
www.krohne.com 10/2022 - 4003491806- AD OPTIMASS 400 Atex R06 en
2.5.11 OPTIMASS 6000F / 6400C cryogenic short stem
OPTIMASS 6000F cryogenic short stem
OPTIMASS 6400C cryogenic short stem with aluminium converter housing
OPTIMASS 6400C cryogenic short stem with Stainless Steel converter housing
VE ab c...i j k l...m n p q r...w
71...79 0 0 1 or 2 C or D
Ambient temp. T
amb
°C Min. process temp. T
m
°C
-30...+65 -60
-20...+65 -80
-10...+65 -100
0...+65 -120
10...+65 -140
20...+65 -160
30...+65 -180
40...+65 -200
For max. process temperature, temp. class and max. surface temperature, see table 2-1
VE ab c...i j k...m n p q r...w
71...79 0 0 C or D
Ambient temp. T
amb
°C Min. process temp. T
m
°C
-30...+65 -90
-25...+65 -100
-20...+65 -140
-15...+65 -170
-10...+65 -200
For max. process temperature, temp. class and max. surface temperature, see table 2-2
VE ab c...i j k...m n p q r...w
71...79 0 0 C or D
Ambient temp. T
amb
°C Min. process temp. T
m
°C
-30...+60 -70
-20...+60 -105
-10...+60 -140
-5...+60 -160
0...+60 -170
+10...+60 -200
For max. process temperature, temp. class and max. surface temperature, see table 2-3