Endress+Hauser Levelflex FMP54 - Dielectric Constant (DC); Expansion of the Rope Probes through Temperature

Levelflex FMP51, FMP52, FMP54
Endress+Hauser 77
FMP54 - process pressure depending on the process temperature
[bar]([psi]) p
[°C]
([°F])
T
p
0
(+32)
-100
(-148)
-196
(-321)
+100
(+212)
200
(+392)
300
(+572)
400
(+752)
450
(+842)
300(4350)
320(4640)
350(5075)
380(5510)
400(5800)
420(6090)
A0014005
p = process pressure T
p
= process temperature
This range may be reduced by the selected process connection. The pressure rating (PN)
specified on the flanges refers to a reference temperature of 20 °C, for ASME flanges 100 °F.
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
Dielectric constant (DC)
• Coax probes: DC (ε
r
) ≥ 1.4
• Rod and rope probe: DC (ε
r
) ≥ 1.6 (when installing in pipes DN ≤ 150 mm (6 in): DC (ε
r
) ≥ 1.4)
Expansion of the rope probes
through temperature
Elongation through temperature increase from 30 °C (86 °F) to 150 °C (302 °F): 2 mm / m rope
length