Operating conditions: Installation. ENDRESS+HAUSER Levelflex FMP55

Suitable mounting position

Operating conditions: Installation

Levelflex FMP55

Applications with restricted mounting space

A0011281

• Rod probes / rope probes: must be mounted in a stilling well or bypass (® ä 23)

• Coax probes: can be mounted at an arbitrary distance from the wall of the vessel

• When mounting in the open, a weather protection cover may be installed to protect the device against extreme weather conditions.

• Minimum distance from the end of probe to the bottom of the vessel: 10 mm (0.4 in)

Mounting with remote sensor

The device version with a remote sensor is suited for applications with restricted mounting space. In this case the electronics housing is mounted at a separate position from which it is easier accessible.

A B r min

= 100 mm (4”)

6 Nm

6 Nm

6 Nm r min

= 100 mm (4”)

6 Nm

22

A Angled plug at the probe

B Angled plug at the electronics housing

A0014794

Endress+Hauser

Levelflex FMP55

• Levelflex version (see product structure):

Feature 600 "Probe Design", Option MB "Sensor remote, 3m/9ft cable, detachable+mounting bracket" (®

ä 45)

• A connecting cable is supplied with this device version

– Length: 3 m (9 ft)

– Minimum bending radius: 100 mm (4 inch)

• A mounting bracket for the electronics housing is supplied with this device version. Mounting options:

– Wall mounting

– Pipe mounting; diameter: 42 to 60 mm (1-1/4 to 2 inch)

• The connection cable has got one straight and one angled plug (90°). Depending on the local conditions the angled plug can be connected at the probe or at the electronics housing.

Notes on the mechanical load of the probe

Tensile load limit of rope probes

Sensor

FMP55

Feature 060

NA, ND

Probe

Rope 4mm (1/6") PFA>316

Tensile load limit [kN]

2

Bending strength of rod probes

Sensor

FMP55

Feature 060

CA, CB

Probe

Rod 16mm (0.63") PFA>316L

Bending strength [Nm]

30

Securing the probe

Bending strength of coax probes

Sensor Feature 060

FMP55 UA, UB

Process connection

Flange

Probe

Coax 316L, Ø 42,4 mm

Securing coax probes

For Ex-approvals: For probe lengths ³ 3 m (10 ft) a support is required.

Bending strength [Nm]

300

A0012608

Special mounting conditions

Coax probes can be supported at any point of the outer tube.

Bypasses and stilling wells

For information on bypass solutions from Endress+Hauser please contact your Endress+Hauser sales representative.

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24

Levelflex FMP55

1 2

A0014129

1 Mounting in a stilling well

2 Mounting in a bypass

• Pipe diameter: > 40 mm (1.6") for rod probes

• Rod probe installation can take place up to a diameter size of 100 mm. In the event of larger diameters, a coax probe is recommended.

• Side disposals, holes or slits and welded joints that protrude up to approx. 5 mm (0.2") inwards do not influence the measurement.

• The pipe may not exhibit any steps in diameter.

• The probe must be 100 mm longer than the lower disposal.

• Within the measuring range, the probe must not get into contact with the pipe wall. If necessary, use a center washer (see feature 610 of the product structure).

• Within the measuring range, the probe must not get into contact with the pipe wall. If necessary, use a PFA

center washer (see feature 610 of the product structure) (® ä 47).

• Coax probes can always be applied if there is enough mounting space.

For bypasses with condensate formation (water) and a medium with low dielectric constant (e.g.

hydrocarbons):

In the course of time the bypass is filled with condensate up to the lower disposal and for low levels the the level echo is superimposed by the condensate echo. Thus in this range the condensate level is measured instead of the correct level. Only higher levels are measured correctly. To prevent this, position the lower disposal 100 mm (4 in) below the lowest level to be measured and apply a metallic centering disk at the height of the lower edge of the lower disposal.

With heat insulated tanks the bypass should also be insulated in order to prevent condensate formation.

Underground tanks

A0014142

Endress+Hauser

Levelflex FMP55

Use a coax probe for nozzles with large diameters in order to avoid reflections at the nozzle wall.

Non-metallic vessels

When mounting Levelflex in a non-metallic vessel, use a coax probe.

Vessels with heat insulation

If process temperatures are high, the device must be included in normal tank insulation to prevent the electronics heating up as a result of heat radiation or convection. The insulation may not exceed beyond the points labeled "MAX" in the drawings.

2 3

1

MAX MAX mm (in)

å

5 Process connection with flange - FMP55

1 Tank insulation

2 Compact device

3 Sensor remote (feature 600)

A0014654

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