Siemens SITRANS LPS200 User manual

SITRANS
Rotating Paddle Switch
SITRANS LPS200
Operating Instructions 03/2015

IQ300IX.fm Page 5 Tuesday, October 2, 2001 1:43 PM

A5E34210883 SITRANS LPS200 – OPERATING INSTRUCTIONS Page EN-1
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Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.
Safety marking symbols
The Manual
This manual will help you set up your SITRANS LPS200 for optimum performance. We
always welcome suggestions and comments about manual content, design, and
accessibility.
Please direct your comments to t[email protected]om. For the complete library of
Siemens Milltronics manuals, go to www.siemens.com/processautomation.
WARNING: relates to a caution symbol on the product, and means
that failure to observe the necessary precautions can result in
death, serious injury, and/or considerable material damage.
WARNING1: means that failure to observe the necessary
precautions can result in death, serious injury, and/or considerable
material damage.
CAUTION: means that failure to observe the necessary precautions can
result in considerable material damage.
Note: means important information about the product or that part of the operating
manual.
1. This symbol is used when there is no corresponding caution symbol on the
product.
In
manual
On
Product Description
(Label on product: yellow background.)
Caution: refer to accompanying documents (manual) for details.
Relates to a caution symbol on the product: Risk of electric shock.
Earth (ground) Terminal
Protective Conductor Terminal
Notes:
• Please follow the installation and operating procedures for a quick, trouble-free
installation and to ensure the maximum accuracy and reliability of your SITRANS LPS200.
• This manual applies to SITRANS LPS200 only.

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SITRANS LPS200 Introduction
The SITRANS LPS200 rotating paddle switch is used for level monitoring of bulk
materials. It can be used to detect full, demand, or empty conditions in silos, hoppers, or
storage vessels of materials such as grain, feed, cement, plastic granulate, and wood
chips. The paddle switch measures bulk densities as low as 100 g/l (6.2 lb/ft3) with the
standard measuring vane, 35 g/l (2.2 lb/ft3) with the optional hinged vane, or 15 g/l
(0.9 lb/ft3) with the optional rectangular vane.
SITRANS LPS200 Features
• High integrity mechanical seal
• AC, DC, or switch-selectable power supply
• Unique friction clutch mechanism. When the measuring vane encounters sudden
resistance, the friction clutch slips to prevent internal component damage.
• Optional fail-safe function alarms on fault conditions or component failure
• Rotatable enclosure
• Optional vanes for use with high and low bulk densities to 15 g/l (0.9 lb/ft3)
• Compact, rigid extension (top mounted only), angled rigid extension, and cable
extension configurations available
• High temperature and high pressure models available
• Optional extension kit available for the compact version
SITRANS LPS200 Applications
• Grain, feed, cement, plastic granulate, wood chips, rice, soybeans, etc.
• Low or high bulk density materials
Principle of Operation
A low revolution gearing motor drives a rotating measuring vane. When material reaches
the rotating vane, rotation stops, actuating a switch. When the vane is no longer covered,
rotation resumes and the switch reverts to its normal condition.
The synchronous induction motor is freely suspended within the housing. When the
rotation is slowed by the material, the reaction torque is used to operate a switch that
gives an electrical signal to stop the motor. When the material level moves away from the
rotating vane, a spring draws the motor back into operating position, the switch returns to
operating position, and the motor is switched back on.
Two motor speeds are available: 1 rpm, for storage silos
5 rpm, for faster process requirements
Notes
• Installation, maintenance, and commissioning must be performed by qualified
technical personnel.
• SITRANS LPS200 must be used only in the manner outlined in this instruction
manual.
• This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based
communications.

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Specifications
Power
• 115 V AC, 50 to 60 Hz, 4 VA
• 230 V AC, 50 Hz, 6 VA
• 22 .. 230 V AC, 50 to 60 Hz, 10 VA
• 24 or 48 V AC
• 24 V DC, 2.5 W
All voltages ± 10 % (including ± 10 % according to IEC 61010-1)
Performance
Alarm delay
• 1 rpm model (storage applications) approx. 1.3 s
• 5 rpm model (process applications) approx. 0.26 s
Sensitivity
• adjustable spring tension position
• optional measuring vanes available, depending on customer sensitivity
requirements
Approximate minimum material density
Standard measuring vane
• 100 g/l (6.2 lb/ft3) when vane is covered by 10 cm (4") of material
• 200 g/l (12.5 lb/ft3) when vane is covered by more than 10 cm (4") of material
Hinged measuring vane
• 35 g/l (2.2 lb/ft3) when vane is covered by 10 cm (4") of material
• 70 g/l (4.4 lb/ft3) when vane is covered by more than 10 cm (4") of material
Rectangular measuring vane (98 x 250 mm)
• 15 g/l (0.9 lb/ft3) when vane is covered by 10 cm (4") of material
• 20 g/l (1.2 lb/ft3) when vane is covered by more than 10 cm (4") of material
• See “Measuring Vanes” on page 10 for more information.
Alarm Output
• microswitch or relay SPDT or DPDT contact 5 A at 250 V AC, non-inductive
• microswitch or relay SPDT or DPDT contact 4 A at 30 V DC, non-inductive
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications but reserves the right to change them at any time.

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Mechanical
Process Connections
• threaded connection 1", 1¼”, 1½" NPT or 1", 1¼”, 1½" BSP
material: stainless steel 303 (1.4305) or 316L
(1.4404), optional aluminum
• flanged connection DN 32 PN 6, DN 100 PN 6, DN 100 PN 16,
2", 3", 4" ASME, 150 lb, B 16.5 (1.4541/321)
• Tri-clamp 2" DN50 ISO 2852
Enclosure
• construction epoxy coated aluminum
• conduit entry 2 x M20 x 1.5, or
2 x ½” NPT
• ingress protection Type 4X/NEMA 4X/IP66
• vane and shaft construction stainless steel 304 and 303 (1.4301 and 1.4305)
or 316L (1.4404)
Weight
Standard temperature:
• compact 1.8 kg (4.0 lb)
• extended 2.2 kg (4.9 lb)
• angled extended 4.0 kg (8.8 lb)
• cable 3.2 kg (7.1 lb)
High temperature:
• compact 2.6 kg (5.7 lb)
• extended 3.0 kg (6.6 lb)
• angled extended 5.2 kg (11.4 lb)
• cable 4.0 kg (8.8 lb)
Environmental
• location indoor/outdoor
• altitude max. 2000 m (6562 ft)
• ambient temperature –25 to +50 °C (–13 to +122 °F)
• relative humidity 0 to 100 %, suitable for outdoor (ingress
protection: Type 4X/NEMA 4X/IP66)
• Overvoltage category II
• Pollution degree 2
Note: With the heated enclosure option, the ambient temperature rating improves to
–40 to +50 °C (–40 to +122 °F).

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Process
Temperature
Standard model:
• –25 to +80 °C (–13 to +176 °F)
• CSA temperature code: T5
• maximum surface temperature +120 ºC (+248 ºF) [ATEX relevant]
High temperature option:
• CE and General Purpose –25 to +600 °C (–13 to +1112 °F)
• FM/ATEX Hazardous –25 to +250 °C (–13 to +482 °F)
• CSA Class II Group E, F –25 to +195 °C (–13 to +383 °F), CSA
temperature code: T2D
• CSA Class II Group G –25 to +160 °C (–13 to +320 °F), CSA
temperature code: T3B
• maximum surface temperature +250 ºC (+482 ºF) [ATEX relevant]
Pressure
• standard model max. 0.8 bar, gauge (11.6 psi, gauge)
• high pressure options max. 5 bar, gauge (72.5 psi, gauge)
max. 10 bar, gauge (145 psi, gauge)
Approvals
• FM/CSA Class II, Div. 1, Group E, F, G, Class III
• ATEX II 1/2 D (dust explosion)
• IECEx t IIIC Da/Db
•CE
•C-TICK
•FM/
CCSAUSA General Purpose
(see product nameplate for approval details)
• Food grade material (according to directive 1935/2004/EC)
Food grade material in contact with the process food (sealing and grease FDA.
conform). The option does not automatically implement a food conform design
(food conform gaps, suface and radiuses).
Note: The device construction allows over-pressure between –0.2 and 0.1 bar in
hazardous areas.
WARNINGS:
• This product is designated as a Pressure Accessory per Directive
97 / 23 / EC, and is not intended for use as a safety device.
• Materials of construction are chosen based on their chemical
compatibility (or inertness) for general purposes. For exposure to
specific environments, check with chemical compatibility charts
before installing.

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Installation
Mounting
SITRANS LPS200 is normally mounted into the vessel top (full detector) or through the
tank wall at the detection level (full, demand or empty detector). SITRANS LPS200 can be
installed through a standard 1¼" NPT or 1½" BSPT pipe coupling, depending on the
chosen process thread.
Food grade material
The materials are available for use under normal and predictable applications (according
to directive 1935/2004 Art. 3). Other conditions can influence safety.
Notes:
• Installation shall be performed by qualified personnel and in accordance with local
governing regulations.
• For heavy material, only top mounting of paddle switch is recommended.
• Compact SITRANS LPS200 is recommended for side mounting on bins for low or
intermediate levels.
• For SITRANS LPS200 Cable extension, the maximum pull force of the rope must not
exceed 4 kN (28 kN with reinforced option).
• When installing LPS200 with rigid extension kit, ensure product is top mounted and
never side or angle mounted.
WARNINGS:
• This product is designated as a Pressure Accessory per
Directive 97/23/EC, and is not intended for use as a safety device.
• Improper installation may result in loss of process pressure.

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Ambient temperature (housing)/process temperature
After mounting and as a precaution
against water ingress into the
housing, turn the housing clockwise
until the cable entries point
downward.
Notes:
• Ensure measuring vane is out of
any region that is susceptible to
build-up.
• For heavy material loads and
protection against falling
material, provide angled
protection.
• Ensure cable gland faces
downward to avoid water
intrusion.
-40 oC (-40 oF) ambient and process temperature for version with heating of housing.
Tprocess
Tamb.
-40°C
(-40°F)
-40°C (-40°F)
-25°C
(-13°F) 50°C
(122°F)
50°C (122°F)
40°C (104°F)
80°C
(176°F) 150°C
(302°F) 250°C (482°F) 600°C
12°F)
-20°C (-4°F)
1(1

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Process Cautions
Sensitivity
To adjust the sensitivity of SITRANS LPS200, use pliers to move the sensitivity spring to
the appropriate position (factory setting is medium). The optional measuring vanes can
also improve sensitivity.
Caution: Keep SITRANS LPS200
out of path of falling material.
Caution: Protect shaft and
measuring vane from falling
material.
sensitivity
spring low
medium
high
Switch selectable voltage version shown