Yokogawa RAKD - Manual (Page 45)

IM 01R01B30-00E-E 5th edition January 01, 2013 -00
<7. TECHNICAL DATA>
7-15
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7.4 Temperature curves
50 55 60 65 70
75
100
200
Illustration of maximum allowable operation temperature depending on
ambient temperature for Rotameter type RAKD
Max. operation temperature [°C]
Ambient temperature [°C]
75 80
125
150
175
225
250
275
Version without valve Version with valve
F6.EPS
Fig. 7-9
For option /KS1 or /KN1 (Ex-i-versions ATEX) the maximum values for ambient and process temperature according to
the respective temperature class mentioned in fig. 5 and table 7 must be regarded.
For option /ES1 (Ex-i-versions IECEx) the maximum values for ambient and process temperature according to the
respective temperature class mentioned table 9 must be regarded.
For option /NS1 (Ex-i-version NEPSI) the maximum values for ambient and process temperature according to the
respective temperature class mentioned in table 11 must be regarded.
The minimum ambient temperature is -25°C. Lower temperatures on request.