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12.2.2 Flowmeter sensor SE21 / SE21F
Minimum Allowable Absolute Pressure
Nominal
Lining
diameter
DN
PFA
3 ... 100
(1/10 ... 4")
Peek/Torlon
1 ...2
(1/25 ... 1/12")
1) Higher temperatures are allowed for CIP / SIP cleaning for limited
time periods, see the table titled "Max. allowable cleaning
temperature".
Maximum Allowable Cleaning Temperature
CIP cleaning
Lining
Steam cleaning
PFA / Peek
Wet cleaning
PFA / Peek /
Torlon
If the ambient temperature is > 25 °C (77 °F), then the difference
must be subtracted from the max. cleaning temperature.
– ∆ °C, ∆ °C = (T
T
- 25 °C)
max
amb
Maximum Allowable Temperature Shock
Lining
Temp Shock max.
Temp. Diff. °C
PFA
Peek, Torlon
Maximum allowable ambient temperature as function of
fluid temperature
T
°C (°F)
amb.
60 (140)
40 (104)
-40
-10
(14F)
-10
DN 1 ... DN 2
(14)
-25 (-13)
Fig. 67:
Temperature graph
The flowmeter sensor must not be isolated.
Fluid temperature DN 1 ... DN 2 (1/25 ... 1/12")
-10 ... 120 °C (14 ... 248 °F), max. allowable cleaning temperature,
see table.
D184B140U02
P
at
T
Operation
Operating
mbar abs
°C
≤
0
130 °C
(266 °F)
≤
0
120 °C
(248 °F)
T
T
max
max
Minutes
150 °C
60
(302 °F)
(77 °F)
140 °C
60
(284 °F)
(77 °F)
Temp. gradient
°C/min
Any
Any
Any
Any
T
Measuring
90 (194)
120
130
°C (°F)
(248)
(266)
G00224
Flowmeter material
Lining
Standard
1
PFA,
Hast.-C4
)
Peek,
(2.4610)
Torlon
(1.4539
[904 L]
for pipe
conn. and
Tri-Clamp)
1/8" sanitary connectors always with 2 grounding electrodes in
material for signal electrodes, standard.
T
amb.
Process connection material
25 °C
Process connection
Flange
25 °C
Wafer type
Weld stubs
Threaded pipe
connection
Tri-Clamp
External threads
1/8" sanitary
connectors
Terminal box
- without/with
preamplifier,
type A
- with
preamplifier,
type B
Meter tube
cable gland used
Flowmeter sensor
housing
Gasket material (internal)
Process
connection
Wafer type
Weld stubs
Threaded pipe
connection
Tri-Clamp
External threads
1/8" sanitary
connectors
Flat gaskets
FSM4000
Specifications
Electrode material
Others
Standard
Hast.-B3
Flat head
(2.4600),
1.4539
(904 L),
1.4571
(316 Ti),
Titanium,
tantalum,
Platinum-
iridium
Standard
Stainless steel 1.4571
(316 Ti)
None
Stainless steel 1.4404
(316 L)
Stainless steel 1.4404
(316 L)
Stainless steel 1.4404
(316 L)
Stainless steel 1.4404
(316 L)
Stainless steel 1.4571
(316 Ti)
Stainless steel 1.4301 (304)
Al alloy, painted, paint coat
frame: dark gray, RAL 7012
cover: light gray, RAL 9002
Stainless steel 1.4301 (304)
Polyamide
Stainless steel 1.4301 (304)
Standard
None
EPDM (Ethylene-
Propylene) with
FDA approval,
silicone with FDA
approval (CIP-
resistant, no oils or
grease)
PTFE
Silicon (resistant
to oil, grease)
Electrode design
Others
Pointed
head
( DN 10)
1.4539
(904 L)
Option
On rqst.
On rqst.
On rqst.
On rqst.
On rqst.
POM, brass,
PVC
–
–
–
PVDF
–
Option
–
Silicon with FDA
approval (optional,
resistant to oils and
grease)
PTFE with FDA
approval
(DN 3 ... 8)
Viton (only in
combination with
PVC process
connection)
–
119
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