Milltronics ILE-61 Instruction Manual

ILE-61 SENSING HEAD

Instruction Manual PL-376

November 2001

Safety Guidelines

Warning notices must be observed to ensure personal safety as well as that of others, and to
protect the product and the connected equipment. These warning notices are accompanied
by a clarification of the level of caution to be observed.

Qualified Personne l

This device/system may only be set up and operated in conjunction with this manual.
Qualified personnel are only authorized to install and operate this equipment in accordance
with established safety practices and standards.

Warning: This product can only function properly and safely if it is correctly transported,

stored, installed, set up, operated, and maintained.

Note: Always use product in accordance with specifications.

Copyright Siemens Milltronics Process

Disclaimer of Liability

Instruments Inc. 2001. All Rights Reserved

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not be responsible for the contents of partial or
whole reproductions of either bound or electronic
versions.

MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments Inc.

Contact SMPI Tech nical Publicat io ns at the following address:

Technical Publications
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: [e-mail]

While we have verified the contents of
this manual for agreement with the
instrumentation described, variations
remain possible. Thus we cannot
guarantee full agreement. The
contents of this manual are regularly
reviewed and corrections are included
in subsequent editions. We welcome
all suggestions for improvement.

Technical data subject to change.

For the library of SMPI instruction manuals, visit our Web site: www.milltronics.com

© Siemens Milltronics Process Instruments Inc. 2001

Table of Contents

ILE-61 Sensing Head........................................................................................................... 2

Specifications...................................................................................................................... 3

Installation ........................................................................................................................... 6

Sensing Head ...........................................................................................................................................6

Sensing Plate ...........................................................................................................................................6

Viscous Damper .......................................................................................................................................7

Interconnection ........................................................................................................................................7

Non-Hazardous Unit without LVDT Conditioner Card ..........................................................7

Non-Hazardous Unit with Sensing Head Mounted LVDT Conditioner Card ..................8

Non-Hazardous Unit with Remote-Located LVDT Conditioner Card ...............................9

Calibration.......................................................................................................................... 10

General .....................................................................................................................................................10

LVDT Output ............................................................................................................................................10

Zero Adjustment ..........................................................................................................................10

Span Test .......................................................................................................................................11

Sensing Head Level Test ...........................................................................................................11

Integrator Calibration ...........................................................................................................................12

Maintenance and Spare Parts........................................................................................ 13

Maintenance ..........................................................................................................................................13

Spare Parts .............................................................................................................................................13

Inner Gasket Placement ......................................................................................................................13

Range Springs ................................................................................................................... 15

General .....................................................................................................................................................15

Range Spring Removal ........................................................................................................................15

Range Spring Replacement ................................................................................................................15

Flowmeter Recalibration .....................................................................................................................15

Troubleshooting................................................................................................................. 16

Linearity.............................................................................................................................. 17

ILE - 61 Sensing Head Outline and Mounting .............................................................18

ILE - 61 Part Identification Diagram .............................................................................19

ILE - 61 Part Identification Table ..................................................................................20

7ML19981CX01 ILE-61 Sensing Head – INSTRUCTION MANUAL Page 1

ILE-61 Sensing Head: Introduction

The Milltronics ILE-61 Sensing Head is used for continuous in-line weighing of powdered
or granular dry bulk solid materials. The material is directed toward the sensing plate.
The horizontal impact force of the material, deflecting the sensing plate, displaces the
core of the sensing head LVDT (linear variable differential transformer). The LVDT output
signal is proportional to material flowrate.

LVDT

moving beam travel

impact force

sensing plate

The ILE-61 sensing head is used with Milltronics E-300 (general purpose), A-300 (aerated
gravity conveyor), and V-300 (vertical material drop) dry solids flowmeters.

.

E-300 A-300 V-300

Page 2 ILE-61 Sensing Head – INSTRUCTION MANUAL 7ML19981CX01

Specifications

ILE-61 Sensing Head

Operating Range

• 0 to 20 TPH min, 0 to 300 TPH max

Product

• fine powder to 25 mm (1")

Product Temperature

• -40 to 232°C (-40 to 450°F)

Ambient Temperature

• -40 to 60°C (-40 to 140°F)

Accuracy

• 1% of full scale

Repeatability

•0.2%

Classification

• CSA certified, general purpose

Range Spring

• selected to suit application

Construction

• cast aluminum frame with fibreglass rear cover

Mounting

•base mount

7ML19981CX01 ILE-61 Sensing Head – INSTRUCTION MANUAL Page 3

Sensor Type

• LVDT (linear variable differential transformer)

LVDT Excitation:

• 2.50 Vac @ 2.9 kHz (supplied by Flowmeter Integrator or LVDT Conditioner Card)

LVDT Output:

• 0 - 0.75 Vac @ 2.9 kHz

Damping Fluid:

• 10 - 100 cm2/s (1000 - 10 000 cs) silicone, (Dow Corning 200)

Options:

• Epoxy, Teflon1,® or Tufram2® frame coating

• Epoxy painted mild steel or stainless steel rear cover

• CSA Class I - groups C & D, Class 2 - groups E, F, & G

Approvals

•CE

SENSING PLATE

Construction:

• 304 stainless steel

Options:

• 316 stainless steel 6

• UHMW polyurethane or Ceramic Tile lining

• Teflon®or plasma coating

LVDT Conditioner Card
Power

• ± 5 Vdc (typically from an Accumass integrator)

1.

Tufram®is a registered trademark of General Magnaplate.

2.

Teflon®is a registered trademark of DuPont.

Page 4 ILE-61 Sensing Head – INSTRUCTION MANUAL 7ML19981CX01

Ambient Temperature

• -20 to 50°C (-2 to 122°F)

Input

• 0 to 1.0 V from LVDT

Output

• 0 to 50 mV to Accumass SF500 (maximum 300 m (1000 ft) separation between
Conditioner Card and integrator)

Approvals

•CE

Enclosure

• NEMA 4 (remote mounted unit)

Cable

For connection between LVDT Conditioner Card and Integrator

• Belden 8404, 4 conductor, shielded 20 AWG or equivalent, 150 m (500 ft) maximum

• Belden 9260, 6 conductor, shielded 20 AWG or equivalent, 300 m (1000 ft) maximum

For connection between LVDT and remote LVDT Conditioner Card,
or directly between LVDT and Integrator

• Belden 8404, 4 conductor, shielded 20 AWG or equivalent, 300 m (1000 ft) maximum

7ML19981CX01 ILE-61 Sensing Head – INSTRUCTION MANUAL Page 5

Installation

Sensing Head

1. With the flowmeter housing installed, mount the ILE-61 to a rigid support structure.

2. Remove the ILE-61 fibreglass cover. With the outer gasket in place, bolt the ILE-61 to
the housing.

3. Adjust the sensing head leveling hardware (provided) to establish level in both
horizontal planes.

Note: Ensure the sensing head mounting structure is capable of supporting the

dynamic material impact forces as well as the weight of the sensing head.

spirit level

moving beam
(machined
surface)

rigid support

Sensing Plate

1. Open the flowmeter housing access door.

2. With the sensing head cover removed, remove the taper pin.

3. Insert the sensing plate shaft fully into the sensing head socket.

Note: Ensure the sensing plate shaft is installed with the flat side up.

4. Insert the taper pin (flat side down), from the left side.

5. Tighten the right taper pin nut to lock the sensing plate shaft in place.

6. Tighten the left taper pin nut.

taper pin
(flat side down)

shaft

socket

flat side up

Page 6 ILE-61 Sensing Head – INSTRUCTION MANUAL 7ML19981CX01

Viscous Damper

fill

1. Remove the 2 damper cover shipping screws. The damper cover will be held up by a
spring.

2. If necessary, top up the damper (to near overflowing) with the damping fluid
supplied.

3. Store the damper cover shipping screws, remaining damper fluid, and filler bottle for
future use.

Note: The damper must be full and free of air bubbles with the damper cover in the UP

position during flowmeter operation.

er bottle

filler plug

shipping screws

damper cover

Interconnection

Non-Hazardous Unit without LVDT Conditioner Card

* See note below for Encapsulated (Hazardous-rated) LVDT color codes.

to LVDT

R

B

Y

L

E

U

L

C
O
M

YEL = WHITE
BLU = ORANGE
GRN = YELLOW

E
D

E

E

X

X

C

C

+

–

cable
clamp

to integrator
(LVDT connection)

B

G

L

R

K

N

S
I
G
–

*For Encapsulated LVDT (hazardous)

flowmeter
terminal
block

Note: Ground shield at Integrator only.

7ML19981CX01 ILE-61 Sensing Head – INSTRUCTION MANUAL Page 7