The Levelflex FMP55 is a premium device with a coated multiparameter probe for interface measurement in the oil & gas, chemical and power industries. This device is designed for safe and reliable measurement both for the interface layer and the overall level by a redundant measuring system. The Levelflex FMP55 is factory precalibrated and features a menu-guided operating concept in national languages for intuitive operation and easy integration into control or asset management systems. It also comes with advanced diagnostics and approvals for various hazardous areas.
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Levelflex FMP55
Ambient temperature range
Operating conditions: Environment
Measuring device
Local display
Connection cable (for
"Probe Design" = "Sensor remote")
–40 to +80 °C (–40 to +176 °F)
–20 to +70 °C (–4 to +158 °F), the readability of the display may be impaired at temperatures outside the temperature range.
85 °C (185 °F)
Ambient temperature limits
When operating the device in the open with strong sunlight:
• Mount the device in a shady position.
• Avoid direct sunlight, especially in warmer regions.
• Use a weather protection cover (see accessories).
The following diagrams take into account only function requirements. There may be further restrictions
for certified device versions. Please refere to the separate Safety Instructions (® ä 51).
26 Endress+Hauser
Levelflex FMP55
Endress+Hauser
With a temperature (T p
) at the process connection the admissible ambient temperature (T a
) is reduced according to the following diagram (temperature derating):
Temperature derating for FMP55
Ta
[°C] ([°F]) Ta
+80 (+176)
Tp
GT20:
+59 (+138)
GT18:
+56 (+133)
GT19:
+33 (+91)
A:
GT19:
-36 (-33)
GT18/20:
-38 (-36)
-40 (-40)
-50
(-58)
-40
(-40)
[°C] ([°F]) Ta
GT18/20:
+79 (+174)
GT19:
+74 (+165)
C:
+82
(+180)
+79
(+174)
+200
(+392)
Tp
[°C]
([°F])
GT20:
+55 (+131)
GT18:
+52 (+126)
GT19:
+33 (+91)
GT19:
-36 (-33)
GT18:
-37 (-35)
GT20:
-38 (-36)
-40 (-40)
-50
(-58)
-40
(-40)
K:
L:
[°C] ([°F]) Ta
+81 (+178)
90–253 VAC
10.4–48 VDC
+74
(+165)
+200
(+392)
Tp
[°C]
([°F])
GT20:
+58 (+136)
GT18:
+55 (+131)
GT18:
-37 (-35)
GT20:
-38 (-36)
-40 (-40)
-50
(-58)
1
G :
PROFIBUS PA
-40
(-40)
+81
(+178)
+200
(+392)
Tp
[°C]
([°F])
[°C] ([°F]) Ta
+79 (+173)
GT20:
+55 (+130)
GT18:
+52 (+126)
2
G :
PROFIBUS PA
Switch output
GT18:
-37 (-35)
GT20:
-38 (-36)
-40 (-40)
-50
(-58)
-40
(-40)
+79
(+173)
+200
(+392)
Tp
[°C]
([°F])
GT18 = stainless steel housing
GT19 = plastic housing
GT20 = aluminum housing
1)
A = 1 current output
C = 2 current outputs
G
1
, G
2
= PROFIBUS PA
K, L = 4-wire
For PROFIBUS PA the temperature derating depends on the usage of the switch output. (G 1 : switch output not connected; G2: switch output connected).
A0013630
T a
= ambient temperature
T p
= temperature at the process connection
27
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Key Features
- Coated multiparameter probe
- Redundant measuring system
- Measuring range up to 10m
- Factory precalibrated
- Menu-guided operating concept
- Simple integration
- Advanced diagnostics
- ATEX, IEC Ex, CSA, FM approvals