Siemens milltronics ILE-37 User manual

Instruction Manual September 2003
ILE-37
milltronics

© Siemens MilltronicsProcessInstruments Inc. 2003
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 Personnel
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
Instruments Inc.2003.AllRights ReservedDisclaimer of Liability
This document is available in bound version and in
electronic version. We encourage users to
purchase authorized bound manuals, or to view
electronic versions as designed and authored by
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not be responsible for the contents of partial or
whole reproductions of either bound or electronic
versions.
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.
MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments Inc.
Contact SMPI Technical Publications 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]
For the libraryof SMPI instruction manuals, visitour Web site: www.siemens-milltronics.com

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Table of Contents
Milltronics ILE-37 Sensing Head ......................................................................................1
Specifications ......................................................................................................................2
Installation ...........................................................................................................................4
Side Mount................................................................................................................................................ 4
Base Mount .............................................................................................................................................. 4
Sensing Plate............................................................................................................................................ 5
Viscous Damper....................................................................................................................................... 5
Interconnection........................................................................................................................................ 6
Non-Hazardous Unit without LVDT Conditioner Card ..........................................................6
Non-Hazardous Unit with Sensing Head Mounted LVDT Conditioner Card ..................7
Non-Hazardous Unit with Remote-Located LVDT Conditioner Card ...............................8
Calibration ............................................................................................................................9
LVDT Output.............................................................................................................................................. 9
Zero Adjustment (if required) .....................................................................................................9
Span Test .......................................................................................................................................10
Sensing Head Level Test ...........................................................................................................10
Integrator Calibration .................................................................................................................11
Zero Calibration ...........................................................................................................................11
Span Calibration ..........................................................................................................................11
Maintenance and Spare Parts ........................................................................................12
Maintenance .......................................................................................................................................... 12
Typical Maintenance Program........................................................................................................... 12
Spare Parts ............................................................................................................................................. 12
Unit Repair and Excluded Liability ..........................................................................................12
Range Springs ...................................................................................................................13
Range Spring Removal......................................................................................................................... 13
Range Spring Replacement................................................................................................................ 13
Flowmeter Recalibration ..................................................................................................................... 13
Troubleshooting .................................................................................................................14
Linearity ..............................................................................................................................15

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7ML19985CW01 Milltronics ILE-37 – INSTRUCTION MANUAL Page 1
Milltronics ILE-37 Sensing Head
The Milltronics ILE-37 sensing head is an out-of-process sensing element for A, E, V, and
C series solids flowmeters. It 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. A viscous fluid damper prevents oscillation of the
mechanism and provides mechanical damping of pulsating material flow.
The ILE-37 sensing head is used with Milltronics E-40 (general purpose), C-40 (coal scale),
A-40 (aerated gravity conveyor), and V-40 (vertical material drop) dry solids flowmeters.
LVDT
moving beam travel
sensing plate
impact force
E-40 A-40 V-40 C-40

Page 2 Milltronics ILE-37 – INSTRUCTION MANUAL 7ML19985CW01
Specifications
Operating Range
• 0 to 0.2 t/h (0 to 0.2 STPH) min., 0 to 40 t/h (0 to 44 STPH) max.
Particle Size
• fine powder to 13 mm (0.5")
Product Temperature
• –40 to 232 °C (–40 to 450 °F)
Ambient Temperature
• –40 to 60 °C (–40 to 140 °F)
• –40 to 50 °C (–40 to 122 °F) with optionally internally mounted LVDT card
Accuracy
• ± 1 % of full scale, higher accuracy with linearizing function of integrator
Repeatability
•±0.2%
Construction
• dust-tight cast aluminum frame with fiberglass rear cover
Mounting
• side mount or base mount (to suit application)
Sensor Type
• LVDT (linear variable differential transformer)
LVDT Excitation
• 2.50 V AC @ 2.9 kHz (supplied byintegrator or LVDT conditioner card)
LVDT Output
• 0 – 0.75 V AC @ 2.9 kHz
Damping Fluid
• 1 – 100 cm2/s (100 – 10,000 cs) silicone (Dow Corning 200 recommended)
Options
• Epoxy paint, synergistic polymer, or PFA coating of external aluminum casting surfaces
• Epoxy painted mild steel or stainless steel rear cover
Approvals
•CE
• Optional CSA. Class I, Groups C and D; Class II, Groups E, F, and G

7ML19985CW01 Milltronics ILE-37 – INSTRUCTION MANUAL Page 3
Sensing Plate
Construction
• 304 (1.4306) stainless steel
Options
• 316 (1.4404) stainless steel
• UHMW polyurethane or Ceramic Tile abrasion resistant lining
• Synergistic polymer or PFA coating for low cohesion and low friction
LVDT Conditioner Card
Power
• ± 5 V DC (typically from a Siemens Milltronics Integrator)
Ambient Temperature
• –40 to 50 °C (–40 to 122 °F)
Input
• 0 to 1.0 V AC from LVDT
Output
• 0 to 50 mV DC to Siemens Milltronics integrator; [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®
18404, 4 conductor, shielded 20 AWG (0.5 mm2) or equivalent, 150 m (500 ft)
maximum
• Belden 9260, 6 conductor, shielded 20 AWG (0.5 mm2) 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 (0.5 mm2) or equivalent, 300 m (1000 ft)
maximum
1. Belden is a registered trademark of Belden Wire & Cable Company.

Page 4 Milltronics ILE-37 – INSTRUCTION MANUAL 7ML19985CW01
Installation
The ILE-37 sensing head is available in two models: side mount and base mount. The
base mount version should be used if the flowmeter will be subjected to excessive
vibration, for flow rates below 1 t/h, or if handling product temperatures above 60 °C.
The side mount version is factory-installed on Siemens Milltronics flowmeters
designed for side mount sensing heads.
Side Mount
1. With the flowmeter housing installed, remove the ILE-37 sensing head cover.
2. Loosen the four ILE-37 mounting bolts.
3. Place a spirit level on the flat top of the ILE-37 frame: adjust the sensing head level
by rotating it, and retighten the mounting bolts.
Base Mount
1. With the flowmeter housing installed, mount the ILE-37 to a rigid support structure.
2. With the outer gasket in place, bolt the ILE-37 to the housing.
3. Adjust the sensing head levelling hardware provided, to establish level in both
horizontal planes.
Note: Ensure that the structure used to support the base mount sensing head is
capable of supporting the dynamic material impact forces as well as the static weight
of the sensing head.
mounting
bolts spirit level
spirit level
rigid
support
moving
beam
supporting/
levelling
bolts
front view side view

7ML19985CW01 Milltronics ILE-37 – INSTRUCTION MANUAL Page 5
Sensing Plate
1. Open the flowmeter housing access door.
2. Remove the sensing head cover and insert the sensing plate shaft fully into the
sensing head shaft socket*.
3. Tighten the set screw/hex screw to secure the sensing plate.
Viscous Damper
1. Remove the two 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:Ensure the slot in the end of the shaft mates with the roll pin in the back of the
socket.
Note: The damper must be full and free of air bubbles, with the damper cover in the
UP position, during flowmeter operation.
sensingplate
sensing head
shaft roll pin
slot
set screw or hex
head screw
sensing
head
damper
filler bottle
shipping
screws
damper
cover
(Check that
there are no
bubbles.)

Page 6 Milltronics ILE-37 – INSTRUCTION MANUAL 7ML19985CW01
Interconnection
Non-Hazardous Unit without LVDT Conditioner Card
* See note below for Encapsulated (Hazardous-rated) LVDT color codes.
Note: Ground shield at Integrator only.
to LVDT
G
R
N
B
L
K
Y
E
L
B
L
U
R
E
D
S
I
G
–
–
C
O
M
E
X
C
–
E
X
C
+
to Integrator
sensing
head
terminal
block
*For Encapsulated LVDT (hazardous)
YEL = WHITE
BLU = ORANGE
GRN = YELLOW
cable
clamp