Endress+Hauser Levelflex M FMP40 Operating Instructions Manual page 77

Levelflex M FMP40 with HART/4...20 mA
Process pressure limits
!
Materials in contact
with process
Dielectric constant
Endress+Hauser
All models: -1 to 40 bar.
This range may be reduced by the process connection selected.
The pressure rating (PN) specified on the flanges refers to a reference temperature of 20 °C, and to
100 °F for ASME flanges. Pay attention to pressure-temperature dependencies.
Please refer to the following standards for the pressure values permitted for higher temperatures:
• "EN 1092-1: 2001 Tab. 18
With regard to their temperature stability properties, the materials 1.4435 and 1.4404 are
grouped under 13E0 in EN 1092-1 Tab. 18. The chemical composition of the two materials can
be identical.
• ASME B 16.5a - 1998 Tab. 2-2.2 F316
• ASME B 16.5a - 1998 Tab. 2.3.8 N10276
• JIS B 2220
Note!
All Levelflex probes have two levels of sealing. There is an O-Ring seal and a molded seal behind it.
Part
Seal
1)
Process connection
Feedthrough rod
NordLock washers
Rod probe
Coax probe
All probes with 1½" and
flange connection
All probes with ¾" connection
1) Endress+Hauser supplies DIN/EN flanges made of stainless steel AISI 316L with the material number 1.4435 or
1.4404. With regard to their stability-temperature property, the materials 1.4435 and 1.4404 are grouped together
under 13EO in EN 1092-1 Tab. 18. The chemical composition of the two materials can be identical.
ε
r ≥ 1.4
• With coax probe:
ε
r ≥ 1.6
• Rod probe:
Material
See "Ordering structure" from → ä 8
See "Ordering structure" from → ä 8
1.4462, Duplex CR22
1.4547
See "Ordering structure" from → ä 8
See "Ordering structure" from → ä 8
Centering stars: PFA
On the lower edge of the process connections: PTFE
(Dyneon Hostaflon TFM 1600)
Lower edge of the process connections: PPS-GF 40
Technical data
77