Endress+Hauser Silopilot FMM 460 Bedienungsanleitung

049 F/OO/e/04.92

Part

No.

015602-1000

silopilot

FMM

4601460

Level

Measurement

Montage-und Betriebsanleitung

Installation and Operating Instructions

Endress

Hauser

Nothing beats know-how

Silopilot

FMM

4601460

Contents

Application

Function

Instrument versions

Sensing weight for the FMM 460, FMM 460

Installation

Selectingthe measuring point

Preparingthe measuring point

Mountingthe Silopilot

Electrical connections

Operating

Technical Data

Maintenance

Repair

Re~lacingthe max. switch

Replacingthe slack tape switch

Replacingthe gear motor

Replacingthe tape roll

Replacingthe counting pipe

Circuit diagrams

Spare parts listfor the Silopilot FMM 460

Contents Silopilot

FMM

4601460

Silopilot

FMM

4601460

Application

The SILOPILOT

FMM

460 is an electromechanical levelmeasurementsystem.

(See Fig 1

The sensing weight which touches the material determinesthe application.

Differenttypes of sensing weight are usedfor measuringthe levelof materials in

bunkers and silos. These can be powdery,fine or coarse-grainedsolids.

Depending on the version and equipment, the SILOPILOT FMM460 is used

for measurementin silosor tanks with operating temperatures up to 60 OC or

pressuresup to

bar.

The FMM 460 Z version of the SILOPILOTcan also be used in flammable dusts

designated as explosion-hazardousarea, Zone 10 and 1

The referencesmade in the following text to "bunker","silo"or "vessel"

are identical:

the vessel in which material is measured.

complete measuring system consists of:

SILOPILOT

FMM

460 with sensing

weight

start buttonor timer

the electromechanical counter

ZCD 155or ZCD 151

andlor

digitallanalogue converter

memory

ZAD

184

Function

A measuring tape with a sensing weight

attached to the end is lowered into a

bunker. When the weight touches the

surface of the material,the tape

slackens and the motor reverses.

The weight then

returnsto its original position.

While the weight is being lowered,the

SILOPILOT emits pulses corresponding

tothe length of the extended tape.

The pulses are recordedon an

electromechanical counter or the

digitallanalogue converter

ZAD

184

memory.

The measurement is stored until the

next measuring cycle.

This is initiated bythe start button or

timer.

ZAD

Contactor

timer counter

Fig.

FMM

460

Connections

Function Silopilot

FMM

4601460

Instrumentversions

The ~useof various options enables combinations of both electrical arld mechanical

modular comporlents to be selected specific to the application.

KLOPILOTFMM

460

Certificates,Assessments

Standard (non-certified)

others

Countingsteps

Measuringtape

1 dmlstainless steel

2 dmlnylon

1/10foot/stainless sreel.

4 1/10footlnylon

others

Instrument heating

A none

heating 220V, 50160Hz 40

C heating 11OV, 50160Hz 40

others

Minimumfail-safefunction

0 no presetting

1 setting at

xx,

meter

2 setting at

xx,

feet

other

Signal function

A non signal function

signal of upper position

C signal of tape breakage (with 220V only)

D signal of upper position

tape breakage (with 220V)

other

Sun protectivecovea

0 no sun cover

with sun cover

other

Power supply

AC 240V, 50160Hz

H AC 230V, 50160Hz

A AC 220V, 50160Hz

AC 127V,50160Hz

AC 115V,50160Hz

AC 110V,50160Hz

D AC 24V,50/60Hz

others

Sensingweight

0 nowe~ght

1 (PVC(red),sensing weight

(white),sensingweight

3 PA (black),sensing weight

4 Umbrella PEIsail cloth

5 Umbrella PAlsa~lcloth

others

For connecting to

A ZCD 155or ZCD :51,

42 V

ZCD 155or ZCD 151,34V

C digitallanalog memoryZAD 184

others

Silopilot

FMM

4601460

Function

SlLOPlLOTFMM

460

Certificates, Assessments

D BVS approvaldust-Ex Zone

others

Countingsteps

Measuringtape

1 dm/stainless steel

1/10foot/stainless steel

others

Instrumentheating

A none

heating 220V, 50160Hz

C heating 11OV, 50160Hz

others

Minimumfail-safefunction

0 no presetting

setting at xx,

meter

setting at

xx,

foot

others

Signal function

A no signal function

B signal of upper position

C signal of tape breakage (with 220V only)

signal of upper position

tape breakage (with 220V only)

others

Sun protectivecover

0 nosun cover

with sun cover

other

AC 240V, 50160Hz

H AC 230V, 50/60Hm

AC 220V, 50160Hz

AC 127V, 50160Hz

15V,50/60Hz

OV, 50/60Hz

24V, 50160Hz

Sensingweight

0 without weight

PA (black),sensing weight

5 umbrella, PA

sailcloth

.For connection to

ZCD 155or ZCD 151,

42V

ZCD 155orZCD 151,24V

I/analoguememory ZAD

184

Sensingweights for the

FMM 460, FMM 460

Silopilot

FMM 4601460

Sensing weights

for

the

FMM

460,

FMM

460

Standardweight in

PVC

Application:

for the

FMM460

With light bulk solids, mainly fine-grained,with powdery characteristics,

e.g.fodder.

For foodstuffs,e.g.salad oil, the PE weight must be used.

(notsuitablefor dust explosion hazardous area, Zone 10).

Weight:920 g

Standardweight for the

The sta.ndardweight for the FMM 460 Z isof PA (Vestamid

with

109

FMM 460

Weight:920 g

Fig.

FMM

460

Standardweight

Fig,

FMM

460

Umbrella weighf

Umbrella weight

PA/PE

for the

FMM

460,

FMM

460

connection

distance accorcding

height of

mounting flange

Square umbrha

spoke in stainless steel

in sail cloth spring

4310

length of edge

250

*on delivew:

180

Application:

For very light, loose solids such as flour, coal dust etc. an umbrella weight in PA only

may be used with the FMM 460 Z

(Ex

Zone 10111

l).

The

FMM

460 may be used with either a PA or PE weignt.

The umbrellaweight has a large square surface areato prevent it sinking into the

material being measured,It can De folded so that

fits through the

100

flange.

Silopilot

FMM

460f460

Installation

Selecting the installation site

Select an installation positionon the silo

roof where inflowing or falling material

cannot damage the measuring tape.

Take intoconsideration the shape and

position of the inflow cone and the

outflow .funnelin the vessel.

See Fig.

and

Fig.

The sensing pathshould not cross

internalfixtures which may touch the

tape when the weight

swings.

Preparing the installation

The SILOPILOT FMM460

100

2501 is mounted on

a counter flange or a flange of the same

dimensions. This flange must be

mounted exactly horizontaland the pipe

onto which it is welded should be

exactly vertical. The pipe should be as

Fig.

FMM

460

short as possible.

installation

withmaterial

buikd-up

Installing a plastic pipe with throat and

pipe flange is recommended with an

especially thick silo roof and long pipes

(Fig. 6). This prevents damage tothe

sensing weight or to the tape caused

bythe sharp edges of the roof.

Inthis particular case the buffer cone

must be removed when using an

umbrella weight.

(Fig.

If the instrument is in direct sunlight,

then a protective cover should beused

either in the form of

sun roof (Fig.

as a protective sun hood.

Incountries with generally high

temperatures, (by the equator, in the

desert), a protective sun cover is

recommended as shown in Fig.

high condensation is present,then

installing a thermostatically controlled

electrical heating system for the

housing is recommended. See

instrumentversions, Pages 4

FI~.

FMM

460

lnstallation

Takingaccount

the

filing cone

Installation Silopilot

FMM

4601460

Installingthe SILOPILOT

Put a gasketon the flange (especially if there is pressure in the silo). Carefully insert

the sensingweight intothe flange and pipe. Placethe SILOPILOT on the flange and

tighten usingthe

bolts.

Note the positionof the cable glands for electrical connections.

When using an l~mbrellaweight, fold it up and then pass it through the

100flange.

(also see Fig.

Mountingon a collar

Removethe housingcover (seePage 10).

with a narrow entrance

Turn the fan wheel until the sensingweight can be pulled away from the FMM to a

(e.g. Fig.

distance of 0.5m. Separate the measuringtape above the buffer cone.

Passthe tape through the entranceand then fasten the umbrellaweight to it with

knot.

DIN

2633

Fig.

Mountingin higher silo

roofs

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