KROHNE DK 46, Supplementary Instructions Manual

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DEVICE DESCRIPTION
2
13
VA FLOWMETERS
www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en
2.7 Ambient temperature / Product temperature
Due to the influence of the product temperature, no fixed temperature class is assigned to
variable area flowmeters. The temperature class of these devices is rather a function of the
present product temperature and ambient temperature.
The correlation of the temperature class as a function of the ambient temperature and the
process temperature is shown separately for each type series in the following table.
The permissible ambient temperatures and process temperatures can be reduced for functional
reasons.
Device type Temp.
class
Surface
temperature
Maximum permissible
Ambient temperature
in °C
Product temperature
in °C
DK32 / DK34 T6 T85°C -40...+70 -40...+85
T5 T100°C -40...+100
T4 T135°C -40...+135
T3 T150°C -40...+150
DK32 HT / DK34 HT T6 T85°C -25...+85 -25...+85
T5 T100°C -25...+100 -25...+100
T4 T135°C -25...+135 -25...+135
T3 T200°C -25...+200 -25...+200
DK37 / M8M T6 T85°C -40...+70 -40...+85
T5 T100°C -40...+100
T4 T135°C -40...+135
T3 T150°C -40...+150
H250 / M8MG T6 T85°C -40...+70 -40...+85
T5 T100°C -40...+100
T4 T135°C -40...+135
T3 T200°C -40...+200
H250 / M40
H250 / M40R
H250 / M40 HT
H250 / M40R HT
T6 T85°C -40...+70 -40...+85
T5 T100°C -40...+100
T4 T135°C -40...+135
T3 T200°C -40...+200
H250 / M40 T2 T300°C -40...+50 -40...+300
H250 / M40R -40...+65
H250 / M40 HT
H250 / M40R HT
-40...+70
H250 / M40R HT -40...+120
Stainless steel type plate
H250 / M40 HT
H250 / M40R HT
T1 T450°C -40...+70 -40...+450
H250 / M40R HT -40...+120
Stainless steel type plate
DK46 / DK47
DK48 / DK800
T6 T85°C -20...+85 -5...+85
T5 T100°C -20...+100 -5...+100