MEDER electronic
LS02 Series
Level Sensors with
Magnetic Floats
DESCRIPTION
Standard liquid level sensor. The sensor has to be
mounted vertically for best results.
Two versions are available:
PP
(Polypropylene) for water applications and
dilute acids
PA
(Polyamide) for use in oil, gasoline (petrol) and
brake fluid
The standard termination is a PVC cable with a
cross section of 0.14 mm
2
and a length of 500 mm.
The cable can be modified on request.
APPLICATIONS
•
Liquid container monitoring in household ap-
pliances, automotive applications, test and
measurement, and control technology.
FEATURES
•
High power switches available
•
Other cables, connectors and colors available
•
Form A (normally open) and Form B (normally
closed) types are available
•
IP 68 (only to screw thread)
ORDER INFORMATION
Series
LS02 -
Options
Contact
Form
XX
1 Form A
1 Form B
Switch
Model
XX -
66, 85
Material
XX -
PA, PP
Cable
Length
(mm)
XXX
500 *
Part Number Example
Termination
X
W
LS02 - 1A66 - PA - 500
1A
is the contact form
66
is the switch model
PA
is the material
500
is the cable length (mm)
W
is the termination
W
* Other cable lengths available.
TERMINATION
For wire and termination details please consult factory.
The cable cut length includes:
5 mm of wire stripped and tinned
W
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279
LS02 Series
Level Sensors with
Magnetic Floats
MEDER electronic
SWITCHING STATUS
Form A
Open
All dimensions in mm [inch]
DIMENSIONS
Form B
500±10
[19.685±0.39]
Closed
5±1
[0.196±0.04]
M10x1.0
SW17
16.5±0.3
[0.649±0.012]
Closed
Open
marking
19.0±0.25
[0.649±0.10]
float
Lock washer
ø24±0.3
[ø0.945±0.012]
ø7
[ø0.276]
MATERIALS
Materials PA version
Stem, nut
Float
Seal
Materials PP version
Stem, nut
Float
Seal
Polypropylene white
Polypropylene white
Nitrile rubber
Polyamide black
Polyamide black
Nitrile rubber
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280
19±0.3
[0.748±0.012]
39.0±0.5
[1.535±0.002]
42.0
[1.653]
56.0
[2.205]
72.50±0.50
[2.854±0.02]
30±2
[1.181±0.079]
MEDER electronic
LS02 Series
Level Sensors with
Magnetic Floats
CONTACT DATA
All Data at 20° C
Contact Ratings
Switching Power
Switching Voltage
Switching Current
Carry Current
Static Contact Resistance
Dynamic Contact Resistance
Insulation Resistance across
Contacts
Breakdown Voltage across
Contact
Operation Time incl. Bounce
Release Time
Capacitance
Environmental Data
Shock Resistance
Vibration Resistance
Ambient Temperature
Stock Temperature
Soldering Temperature
1/2 sinus wave duration 11 ms
From 10 - 2000 Hz
10°C/ minute max. allowable
10°C/ minute max. allowable
5 sec. dwell
-20
-20
50
20
90
100
260
-20
-55
50
20
130
130
260
g
g
o
Switch Model
→
Contact Form
→
Conditions
Any DC combination of V & A not
to exceed their individual max.‘s
DC or peak AC
DC or peak AC
DC or peak AC
w/ 0.5 V & 10 mA
Measured w/ 0.5 V & 50 mA ,
1.5 ms after closure
100 volts applied
Voltage applied for 60 sec. min.
Measured w/ 50 % overdrive
Measured w/ no coil suppression
at 10 kHz cross contact
Switch 66
Form A
Switch 85
Form A / B
Min. Typ. Max. Min. Typ. Max. Units
10
200
0.5
1.25
150
200
10
10
*
225 *
100
1000
1.0
2.5
150
200
10
11
700
W
V
A
A
mΩ
mΩ
Ω
VDC
0.5
0.1
0.2
0.7
1.0
0.1
ms
ms
pF
C
C
C
o
o
Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive
switch.
* Insulation resistance of 10
12
and breakdown voltage of 480 VDC is available.
These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch section. Consult factory if
more detail is required.
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