FlowLine Switch-Tek LV20-1201, Switch-Tek LH-25 Series, Switch-Tek LV-20 Series, Switch-Tek LV20-5201, Switch-Tek LH25-1201 User Manual
n
L
u
Swi
t
T
w
es
V
2
0
A
Mini-Float Li
ch-
quid Level S
ek™
itch
V20 & LH
25 Seri
Manual
L
20-1201
LH25-12
LV20-5201
1
Flowli
e, Inc. | 10500 H
mbolt Street, Los
Alamitos, CA 907
0 p 562.598.3015 f 562.431.8507 w flowline.com
MN301310 Rev
Introduction / Table of Contents Step One
ABOUT SWITCH-TEK™ MINI-FLOAT LEVEL SWITCH
The Mini-Float level switch consists of a float, magnet, reed switch and body/stem with mounting threads.
When the probe is dry, the float rests on the bottom of the stem 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 state.
TABLE OF CONTENTS
Specifications: .................................................................................................................. 3
Dimensions: ...................................................................................................................... 4
Safety Precautions: ........................................................................................................... 5
Installation: ....................................................................................................................... 6
General Information: ............................................................................................. 6
Orientation: .......................................................................................................... 7
Electrical: ......................................................................................................................... 8
Voltage: ................................................................................................................. 8
Cable Length: ........................................................................................................ 8
Signal Outputs: ..................................................................................................... 8
Vertical Mini-Float Level Switch: ........................................................................... 8
Horizontal Mini-Float Level Switch: ....................................................................... 9
Contact Protection: ............................................................................................... 9
Wiring: ............................................................................................................................ 10
Wiring to a Flowline Controller: .......................................................................... 10
Maintenance: ................................................................................................................. 11
General: .............................................................................................................. 11
Cleaning Procedure: ........................................................................................... 11
Testing the installation: ....................................................................................... 11
Warranty: ……………… .................................................................................................. 12
2 | MN301310 Rev A
Specifications / Dimensions Step Two
Orientation: LV20: ±20˚ from vertical
LH25: ±20˚ from horizontal
Accuracy: ±5mm in water
Repeatability: ±2mm in water
Specific Gravity: LV20: 0.8 minimum
LH25: 0.6 minimum
Contact Type: (1) SPDT reed
Contact Rating: LV20: 120VAC/VDC @ 50 VA
LH25: 120VAC/VDC @ 30 VA
Contact Output: Selectable NO/NC
Temperature Range: LV20: F: -40˚ to 176˚
C: -40˚ to 80˚
LH25: F: -40˚ to 221˚
C: -40˚ to 105˚
Pressure Range: LV20: 10 psi (0.7bar)
LH25: 100 psi (6.9 bar)
Sensor Rating: NEMA 6 / IP68
Sensor Material: LV20-12_1: PP
LV20-52_1: PVDF
LH25-1201: PP
LH25-5201: PVDF
Switch Rating
Reed
Switch
Rating
VA Volts Amps
Maximum
Resistive
Load
Amps
AC
DC
0-50 0.5 0.5
50
120 0.4 0.4
240 0.2 0.2
0-50 0.3 0.28
30
120 0.28 0.07
240 0.14 N/A
Components
Part
Number
Body
Material
Cable
Material
Thread
LV20-1201 PP PVC 1/8” NPT
LV20-1251 PP PVC 1/8” R
LV20-5201 PVDF TFE 1/8” NPT
LV20-5251 PVDF TFE 1/8” R
LH25-1201 PP Polymeric ½” NPT
LH25-5201 PVDF TFE ½” NPT
Wire Jacket Mat’l: LV20-12_1: PVC
LV20-52_1: TFE
LH25-1201: Polymeric
LH25-5201: TFE
Wire Type: 2-conductor, 22-gauge
Wire Length: 2’ (61cm)
Process Mount: LV20: 1/8” NPT (R)
LH25: ½” NPT
Classification: General Purpose
Compliance: CE
MN301310 Rev A 3 |
Specifications / Dimensions Step Two
DIMENSIONS
LV20-1201, LV20-1251, LV20-5201, LV20-5251
LH25-1201, LH25-5201
4 | MN301310 Rev A
Loading...