FlowLine Switch-Tek LV30 Series, Switch-Tek LV31 Series, Switch-Tek LV32 Series, Switch-Tek LV30-S201, Switch-Tek LV31-S201 Owner's Manual

Warranty, Service & Repair

WARRANTY

Flowline warrants to the original purchaser of its products that such
products will be free from defects in material and workmanship under
normal use and service for a period which is equal to the shorter of
one year from the date of purchase of such products or two years from
the date of manufacture of such products.

This warranty covers only those components of the products which
are non-moving and not subject to normal wear. Moreover, products
which are modified or altered, and electrical cables which are cut to
length during installation are not covered by this warranty.

Flowline’s obligation under this warranty is solely and exclusively
limited to the repair or replacement, at Flowline’s option, of the prod­ucts (or components thereof) which Flowline’s examination proves to
its satisfaction to be defective. FLOWLINE SHALL HAVE NO
OBLIGATION FOR CONSEQUENTIAL DAMAGES TO PERSON­AL OR REAL PROPERTY, OR FOR INJURY TO ANY PERSON.

This warranty does not apply to products which have been subject to
electrical or chemical damage due to improper use, accident, negli­gence, abuse or misuse. Abuse shall be assumed when indicated by
electrical damage to relays, reed switches or other components. The
warranty does

not apply to products which are damaged during ship­ment back to Flowline’s factory or designated service center or are
returned without the original casing on the products. Moreover, this
warranty becomes immediately null and void if anyone other than ser­vice personnel authorized by Flowline attempts to repair the defective
products.

Products which are thought to be defective must be shipped prepaid
and insured to Flowline’s factory or a designated service center (the
identity and address of which will be provided upon request) within
30 days of the discovery of the defect. Such defective products must
be accompanied by proof of the date of purchase.

Flowline further reserves the right to unilaterally wave this warranty
and to dispose of any product returned to Flowline where:

a. There is evidence of a potentially hazardous material present

with product.

b. The product has remained unclaimed at Flowline for longer than

30 days after dutifully requesting disposition of the product.

THERE ARE NO WARRANTIES WHICH EXTEND BEYOND
THE DESCRIPTION ON THE FACE OF THIS WARRANTY. This
warranty and the obligations and liabilities of Flowline under it are
exclusive and instead of, and the original purchaser hereby waives, all
other remedies, warranties, guarantees or liabilities, express or
implied. EXCLUDED FROM THIS WARRANTY IS THE IMPLIED
WARRANTY OF FITNESS OF THE PRODUCTS FOR A PARTIC­ULAR PURPOSE OR USE AND THE IMPLIED WARRANTY OF
MERCHANT ABILITY OF THE PRODUCTS.

This warranty may not be extended, altered or varied except by a writ­ten instrument signed by a duly-authorized officer of Flowline, Inc.

To register your product with the manufacturer, go to the Flowline
website for on-line registration. The website address is as follows:

www.flowline.com.

On-line Warranty Registration can be found under Contact Us is
the Navigation Bar along the side of the home page.

If for some reason your product must be returned for factory ser­vice, contact Flowline Inc. at [phone] to receive a Material
Return Authorization number (MRA), providing the following
information:

1. Part Number, Serial Number

2. Name and telephone number of someone who can answer
technical questions related to the product and its application.

3. Return Shipping Address

4. Brief Description of the Symptom

5. Brief Description of the Application

Once you have received a Material Return Authorization number,
ship the product prepaid

in its original packing to:

Flowline Factory Service
MRA _____
10500 Humbolt Street
Los Alamitos, CA 90720

To avoid delays in processing your repair, write the MRA on the
shipping label. Please include the information about the malfunc­tion with your product. This information enables our service tech­nicians to process your repair order as quickly as possible.

®

Version 1.0A
© 2005 FLOWLINE Inc.
All rights reserved.
Manual # LV900003 05/05

Switch-Tek Vertical
High-Temp Float
Level Switch
LV30, LV31 and LV32
Series Owner’s Manual

Spec Tech Industrial 203 Vest Ave. Valley Park, MO 63088 Phone: 888 SPECTECH

E-mail: [e-mail] www.spectechind.com

Step One

SPECIFICATIONS

Specifications:

Orientation: ± 20° from vertical
Accuracy: ± 3 mm in water
Repeatability: ± 1 mm in water
Specific gravity: LV30: 0.7 min.

LV31: 0.9 min.

LV32: 0.8 min.
Contact type: (1) SPST reed
Contact rating: 240 VAC/VDC @ 20 VA
Contact output: NO/NC, selectable
Process temp.: F: -40° to 300°

C: -40° to 148.9°
Pressure: LV30: 100 psi max. (6.9 bar max.)

LV31: 275 psi max. (18.9 bar max.)

LV32: 750 psi max. (51.7 bar max.)
Sensor rating: NEMA 6 (IP68)
Sensor material: 316 ss
Process mount: LV30: 1/8" NPT

LV31: 1/8" NPT

LV32: 1/4" NPT
Wire type: LV30: 2-wire, #22 AWG

LV31: 2-wire, #22 AWG

LV32: 2-wire, #18 AWG
Wire length: 24" (61 cm)
Wire jacket mat.: Polymeric
Classification: General purpose
CE compliance: EN 50082-2 immunity

EN 55011 emission

EN 61010-1 safety

Part Number Information:

Part # Material Thread

LV30-S201 316 ss 1/8" NPT
LV31-S201 316 ss 1/8” NPT
LV32-S201 316 ss 1/4" NPT

Electrical Data:

The reed switches installed within
the Switch-Tek level switches are
hermetically-sealed, magnetically
actuated, make and break type.
Switches are SPST and are rated
in Volt-Amps (VA). See the chart
along side for maximum load
characteristics.

LV30-S201 Dimensions:

1/8" NPT

1.5"

(38mm)

L1*

1.5"(38mm)

2.0"(52mm)

1/2" HEX (13mm)

2’ Cable (600mm)

1.0"

(25mm)

L1* = 0.6" (16mm) NO, .8" (19mm) NO,

switch actuation level, nominal
(based upon specific gravity = 1.0)

Warning:

Contact protection is required for transient or high in-rush cur­rent.

Don’t be misled by the resistive ratings of the switches. Most
applications involve inductive loads.

Don’t be misled by the wattage ratings of loads. Low wattage
loads are often high inductive devices, making contact protection
very important.

L1* = 0.6" (15mm) NO, .8" (21mm) NO,

switch actuation level, nominal
(based upon specific gravity = 1.0)

1/8" NPT

1.0"

(26mm)

L1*

1.7"

(43mm)

2.3"(59mm)

1/2" HEX (13mm)

2’ Cable (600mm)

1.2"

(31mm)

L1* = 1.1" (28mm) NO, dimension varies for NC

switch actuation level, nominal
(based upon specific gravity = 1.0)

1/4" NPT

2.1"

(52mm)

L

1

*

2.8"

(70mm)

3.4"

(86mm)

5/8" HEX

(16mm)

2’ Cable

(600mm)

LV31-S201 Dimensions:

LV32-S201 Dimensions:

Reed
Switch
Rating

VA Volts AmpsACAmps

20 0-30 0.4 0.3

Max.

Resistive

Load

DC

120 0.17 0.13
240 0.08 0.06

Step ThreeStep Two

SPECIFICATIONS

About This Manual:

PLEASE READ THE ENTIRE INSTRUCTION SHEET PRIOR
TO INSTALLING OR USING THIS PRODUCT. This Instruction
sheet includes information on all models of Switch-Tek Vertical
High-Temp Float Level Switches from Flowline: LV30-S201,
LV31-S201 and LV32-S201. Please refer to the part number locat­ed on the sensor label to verify the exact model which you have
purchased.

User's Responsibility for Safety:

Flowline manufactures a wide range of liquid level sensors and
technologies. While each of these sensors is designed to operate in
a wide variety of applications, it is the user's responsibility to select
a sensor model that is appropriate for the application, install it
properly, perform tests of the installed system, and maintain all
components. The failure to do so could result in property damage
or serious injury.

Proper Installation and Handling:

Because this is an electrically operated device, only properly trained
staff should install and/or repair this product. Use a proper sealant
with all installations. Never overtighten the sensor within the fitting,
beyond being hand tight. Always check for leaks prior to system
startup.

Material Compatibility:

All models in the LV30 series are made of 316 stainless steel. Make
sure that the model which you have selected is compatible with the
application liquids. To determine the chemical compatibility between
the sensor and its application liquids, refer to the Compass Corrosion
Guide, available from Compass Publications (phone [phone]).

Wiring and Electrical:

The Switch-Tek Vertical High-Temp Float features a two-wire
design with a SPST dry contact closure. Electrical wiring of the
sensor should be performed in accordance with all applicable
national, state, and local codes.

Normally Open/Normally Closed:

The orientation position of the float determines whether the switch is
Open or Closed. The orientation is identified along the side of the
float and can be changed by revering the float 180 degrees.

Flammable, Explosive and Hazardous Applications:

The LV30 series should not be used within flammable or explosive
applications. In hazardous applications, use redundant measurement
and control points, each having a different sensing technology . Refer to
the National Electric Code (NEC) for all applicable installation require­ments in hazardous locations.

About Single Station Sensing

Flowline's LV30 series use a magnetic float which rides up and
down a stem containing the reed switch. The only moving part is the
float. No bearings, packing glands, bellows or electronic gadgets are
used. The Switch-Tek High-Temp Floats are built rugged to resist
shock and vibration. The LV30 series utilize a low cost, flexible
design which allows for vertical mounting at the top or bottom of a
tank. The Switch-Tek High-Temp Floats can be mounted up, down
or up to 20 degrees off vertical.

Power

Supply

N.O.

N.C.

Power

Supply

N.O.

N.C.

Power

Supply

N.O.

N.C.

Power

Supply

N.O.

N.C.

INSTALLATION

Orientation: A standard NPT female boss in tank top, bottom or

side is all that is required. The units operate in any attitude - from the
vertical to a 20° inclination - with lead wires up or down. Standard
IPS pipe extends level switches to any intermediate level in the tank.

–20¡

–20¡

OR

Normally Open or Normally Closed: Each level switch can

be wired Normally Open (NO) or Normally Closed (NC). The Normal
Condition is typically when the float rests in a dry state. Each LV30
series level switch is shipped in the NO state and can be switched in
the field by rotating the float 180 degrees. The float is marked NO or
NC along the side to easily indicate the state of the switch.

Normally Open: In the NO state, the switch is open when the

float rests in a dry state along the bottom of the stem and is closed
when liquid lifts the float.

Normally Closed: In the NC state, the switch is closed when the

float rests in a dry state along the bottom of the stem and is open when
liquid lifts the float.

Switching the Output: To reverse from NO or NC, remove the clip

from the stem, rotate the float 180 degrees and replace the clip to the stem.

N.O.

N.C.

N.O.

N.C.

N.O.

N.C.

Step FiveStep Four

WIRING

All Models:

Wiring to a Flowline Controller

LC10/LC11 Series

Compact Relay

Controller

LC40 Series Remote
Relay Controller

Typical Wiring

MAINTENANCE

STANDARD
CONTROLLER

REL A Y 1 REL A Y 2

POW E R

INPUT 1 I NP UT 2A IN PUT 2 B

-

+

-

+

INV ER T

DEL AY

INV ER T

DEL AY

LATCH

ON OFF

N.O.

N.C.

Power

Supply

Alarm

Red

Red

General:

The Switch-Tek vertical float has no scheduled maintenance require­ment, except to clean off any deposits or scaling from the switch as
necessary. The switch may need to be cleaned periodically too pre­vent jamming or sticking. It is the responsibility of the user to deter­mine the appropriate maintenance schedule, based on the specific
characteristics of the application liquid.

Cleaning procedure:

1. Power: Make sure that all power to the switch, controller and/or

power supply is completely disconnected.

2. Switch removal: If necessary, make sure that the tank is drained

well below the switch prior to removal. Carefully, remove the sen­sor from the installation.

3. Cleaning the switch: Using a soft bristle brush and mild deter-

gent, carefully wash the switch. Do not use harsh abrasives such
as steel wool or sandpaper, which might damage the surface of the
sensor. Do not use incompatible solvents which may damage the
sensors 316 stainless steel body. Take particular care to remove
any scaling from the float body and make sure that it moves freely.

4. Sensor installation: Follow the appropriate steps of installation

as outlined in the Installation section of this manual.

Testing the installation:

1. Power: Turn on power to the controller and/or power supply.

2. Immersing the switch: Immerse the float in its application liq-

uid, by filling the tank up to the point of actuation. An alternate
method of immersing the switch during preliminary testing is to
hold a cup filled with application liquid up to the switch’s tip.

3. Test: With the switch being fluctuated between wet and dry

states, the switch indicator light in the controller should turn on
and off. If the controller doesn’t have an input indicator, use a
voltmeter or ammeter to ensure that the switch produces the cor­rect signal.

4. Point of actuation: Observe the point at which the rising or

falling fluid level causes the switch to change state, and adjust the
installation of the switch if necessary.

ACAC

115 VAC
220 VAC

ACAC
GNDGND
NCNC
CC
NONO

DELADELAYY

INVERINVERTT +/- +/-

PP

RR

Input 1AInput 1A

(+)(+)
(-)(-)

LALATCHTCH

(+)(+)

(-)(-)

Input 1BInput 1B