Flowline LV10 Operating Manual

Switch-Tek™

Vertical Buoyancy Liquid Level Switch

LV10 Series Manual

Flowline, Inc. | 10500 Humbolt Street, Los Alamitos, CA 90720 p 562.598.3015 f 562.431.8507 w flowline.com MN301340 Rev A2

Introduction / Table of Contents Step One

ABOUT SWITCH-TEK™ VERTICAL BUOYANCY LEVEL SWITCH

The Vertical Buoyancy Switch consists of a float, magnet reed switch and baffle body which dampens
turbulence and eliminates the negative effects of switch chatter. When the probe is dry, the float rests on the
bottom of the baffle body such that the magnet does not influence the reed switch. As the probe becomes
immersed in liquid, the float becomes buoyant and the magnet elevates causing the reed switch to change to
change.

TABLE OF CONTENTS

Specifications: .................................................................................................................. 3

Dimensions: ...................................................................................................................... 3

Safety Precautions: ........................................................................................................... 4

Installation: ....................................................................................................................... 5

Top Wall Installation: ............................................................................................ 5

Bayonet Connection: ............................................................................................ 5

Orientation: .......................................................................................................... 5

Connection to a Switch Car Kit (LM30 series):: ................................................... 6

Electrical: ......................................................................................................................... 7

Smart Trak and Switch Pak Assemblies: ........................................................................ 7

Wiring: .............................................................................................................................. 8

Wiring to a Flowline Controller: ........................................................................................ 8

Maintenance: ................................................................................................................... 9

Warranty: ……………… .................................................................................................. 10

| 2 MN301340 Rev A2

Specifications / Dimensions Step Two

Accuracy: ±2mm in water
Repeatability: ±1mm in water
Orientation: ±20˚ from vertical
Specific Gravity: 0.8 minimum
Contact Type: (1) SPDT reed
Contact Rating: 15VA, 0.25A max.
Contact Voltage: 120 VAC, 120 VDC @ 15 VA
Contact Output: Selectable NO/NC
CE Rating: 30 Vrms and 42.4 Vpeak or 60

VDC @ 15 VA
Temperature Range: F: -40˚ to 176˚
C: -40˚ to 80˚
Pressure Range: 25 psi (2 bar) @ 25˚ C., derated

@ 1.667 psi (.115 bar) per ˚C.

above 25˚ C.
Sensor Rating: NEMA 6 / IP68
Sensor Material: Polypropylene (PP)
Polyvinylidene Fluoride (PVDF)
Cable Type: 3-conductor, 22-gauge,

shielded
Cable Length: 10’ (3m)
Cable Material: PP or FEP jacket
Mounting Threads: 3/4” NPT (3/4” R)
CE Compliance: EN 61326 EMC
EN 61010-1 safety

Switch Rating

Reed
Switch
Rating
VA Volts Amps

Maximum
Resistive
Load

Amps

AC

DC

15 0-50 0.3 0.21
15 120 0.13 0.09
15 240 0.06 0.04

Components

Part
Number

Body
Material

Cable
Material

Thread

LV10-1301 PP PP ¾” NPT
LV10-1351 PP PP ¾”R
LV10-5301 PVDF FEP ¾” NPT
LV10-5351 PVDF FEP ¾” R

Pressure / Temperature Derating

DIMENSIONS

LV10-1301, LV10-1351, LV10-5301, LV10-5351

MN301340 Rev A2 3 |