TECHNICAL DATA
8
79
H250 M40
www.krohne.com
03/2020 - 4000640706 - MA H250-M40 R06 en
8.2.1 Temperatures for mechanical indicators without auxiliary power
Indicators
Indicators
Indicators
Indicators
M40
Aluminium, two-layer powder coating (epoxy / polyester)
M40R
Stainless steel without coating 1.4408 / CF8M
Offshore
Wet coating on request
Cable glands
Standard
Polyamide
Optional
Nickel-plated brass or stainless steel
Other options on request
Other options on request
Other options on request
Other options on request
Special materials
e.g. SMO 254/6Mo/1.4547, Titanium Grade 2, Hastelloy
®
C276/2.4819,
Hastelloy
®
C4/2.4610, Monel
®
/2.4360, Inconel
®
/2.4856,...
Float damping
PEEK (only for gas) or ceramic
Gaskets
Standard for devices with female thread as insert: O-ring FPM / FKM
Others optional: e.g. FFKM, EPDM
Process connections
Options
Flanges, clamp connections, screw connections and thread connections.
For detailed information refer to
Process connections
on page 82.
Electrical connections, inputs and outputs
Cable glands
Cable glands
Cable glands
Cable glands
Standard
M20x1.5 (PA) with cable diameter: 8...13 mm / 0.315...0.512"
Optional
M20x1.5 (Nickel-plated brass or stainless steel) with cable diameter:
10...14 mm / 0.394...0.552"
For detailed information refer to
Electrical connections, inputs and outputs
on page 83.
Table 8-2: Technical data
DANGER!
For devices to be used in hazardous areas, special temperature ranges apply. These can be
found in the Ex supplementary instructions.
Material
Product temperature
Ambient temperature
Float
Liner
[
°
C]
[
°
F]
[
°
C]
[
°
F]
H250/RR
Stainless steel
-196...+300
-321...+572
-40...+120
-40
…
+248
H250/RR screw fitting FPM/FKM
-20...+200
-4...+392
-20
…
+120
-4
…
+248
H250/RR
(Low flow)
Stainless steel or Titanium
-40...+200
-40...+392
-40...+120
-40
…
+248
H250/HC
Hastelloy
®
-196...+300
-321...+572
-40...+120
-40
…
+248
H250/C
PTFE
-196...+70
-321...+158
-40...+70
-40
…
+158
H250/C
Ceramic
PTFE
-196...+150
-321...+302
-40...+70
-40
…
+158
H250/C
Ceramic
TFM / Ceramic
-196...+250
-321...+482
-40...+120
-40
…
+248
H250 H/U
Spring material stainless steel 1.4301
-40...+100
-40
…
+212
-40
…
+120
-40
…
+248
Spring material Hastelloy
®
2.4610
-40...+200
-40...+392
-40
…
+120
-40
…
+248
Table 8-3: Product and ambient temperatures in
°
C and
°
F