Flowline LP50 Operating 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 INJURYTO ANYPERSON.

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 W ARRANTYIS THE IMPLIED
WARRANTY OF FITNESS OF THE PRODUCTS FOR APARTIC­ULAR 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.

®

Version 6.0A
© 2002 FLOWLINE Inc.
All rights reserved.
Manual # LP900002 - LP50-0510-M6_0A

Non-Intrusive RF Capacitance
Level Switch
LP50 Series
Owner’s Manual

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 in
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.

Step One

SPECIFICATIONS

Technology:

The non-intrusive RF capacitance switch detects the pres­ence of liquid or air by measuring the conductive or dielec­tric values which are present in all materials. An electrical
capacitor is formed between the level switch and the outer
tank wall. As liquid rises and falls against the inner wall, the
capacitance effect is greatly increased and the 1A SPST
relay changes state.

1.7"(44mm)

2.8"(71mm)

3.2"(81mm)

8’ Cable (2.5m)

(+)

(-)

NO/NC

COM

Shld

Red

RELAY

Black

White

Green

1.0"

(25mm)

1.6"(41mm)

2.2"(56mm)

100

80
60
40
20
00

-20
12 16 20 24 28 32 36

Acceptable

Range

Unacceptable

Range

Maximum Tem. / Voltage Derating

Continuous 20 mA Sinking Curve

Ambient Sensor Temperature (¡C)

Operating Voltage (VDC)

1,600
1,400
1,200
1,000

800
600
400
200

0

12 18 24 30 36

Acceptable

Range

Unacceptable

Range

4-20 mA Sensor

Electrical Loading Limits

Max. Series Resistance (Ohms)

Supply Voltage (VDC)

Acetone 21
Acetoaldehyde 22.2
Acetyl methyl hexyl

ketone 28
Alcohol 16 to 31
Ammonia 15 to 25
Acetic acid 4.1 to 6.2
Butyl chloride 9.6
Barium chloride 9 to 11
Benzene 2.3
Benzine 2.3
Barium nitrate 5.6
Bromine 3.1

Chlorobenzene 4.7 to 6
Chlorotoluene 4.7
Chloroform 4.5 to 5.0
Chlorine, liquid 2.0
Carbon tetrachloride 2.2
Cyan 2.6
Cyclohexanemethanol 3.7
D.I. Water 20
Ethyl toluene 2.2
Ethyl alcohol 23
Ethylene glycol 37
Ethylene oxide 14

Ethylene dichloride

11 to 17
Ethylene chloride 10.5
Ethyl acetate 6.4
Ethyl salicylate 8.6
Ethyl stearate 2.9
Ethyl silicote 4.1
Formic acid 59
Ferric oleate 2.6
Freon 2.2
Glycerine 47
Glycol 30
Glycol nitrite 27

Gasoline 2 to 2.2
Hydrochloric acid 4.6
Isobutyric acid 2.7
Isobutyl methyl ketone 13
Jet fuel 1.7
Lead carbonate 18
Lead nitrate 38
Methyl salicylate 9.0
Methanol 33
Methyl alcohol 33 to 38
Margarine,liquid 2.8 to 3.2
Methyl acetate 7.3
N-butyl formate 2.4

Nitrobenzene 26 to 35
Nitrotoluene 25
Naphthalene 2.3 to 2.5
Oils, vegetable 2.5 to 3.5
Oils, mineral 2.3 to 2.4
Oils, petroleum 1.8 to 2.2
Oleic acid 2.5
Propane, liquid 1.8 to 1.9
Potassium nitrate

5.0 to 5.9
Potassium chloride 5.0
Stearic acid 2.3
Toluene 2.4

Trichloroethylene 3.4
Trichloroacetic acid 4.5
Terephthalic acid

1.5 to 1.7
Thinner 3.7
Urea 3.5
Vinyl chloride 2.8 to 6
Vinyl alcohol 1.8 to 2.0
Water, 20°C 80
Water, 100°C 48

Table of Common Dielectric Constants:

NOTE: Liquids with a conductivity value > 100 µ U are fine if coating is not an issue. Liquids with a dielectric constant less than 20 may not be reli­ably detected by an LP50 series level switch, depending on conditions.

Tank mounting: Non-intrusive
Tank mat. comp.: Non-metallic
Tank wall thick.: < 1" (25 mm)

±

Accuracy:
Repeatability:
Dielectric range: > 10 constants
Conductive range: > 100 micromhos
Supply voltage: 12-36 VDC
Consumption: 25 mA maximum
Contact type: (1) SPST relay
Contact rating: 120 VAC/VDC @ 1A

Contact output: Se le ct ab le N O/ NC
Process temp.: F: -40˚ to 176˚

Enclosure rating: NEMA 4X (IP65)
Enclosure mat.: PS O
Conduit entrance: Si ngl e, 1/2" NPT
Bracket material: 1 005 : PP

Bracket mounting: 3M a dhesive / plastic

Cable jacket mat.: PP
Cable type: 4-conductor, #22 AWG

Cable length: Standard: 10' (3m)

Classification: General purpose
CE compliance: EN 61326 EMC

1 mm in water

±

0.5 mm in water

(CE: 60 VAC/VDC @ 1A)

C: -40˚ to 80˚

50 05 : PVDF
60 05 : PE

th er mal weld

(shielded)

Sp ec ia l or de r: 25'
(7. 6m) or 50' (15.2m)

EN 61010-1 safety