Accessories

Float
standard programme
ID letter:
A/M/K
Dimension (mm):Ø40 x 27
Material:
POM
Depth of
immersion Weighing
h1(mm)
y (g/cm3)
18
1
20
0.9
22.5
0.8
26
0.7
ID letter:
T/C/I
Dimension (mm): Ø30 x 44
Material:
PP
Depth of
immersion Weighing
h1(mm)
y (g/cm3)
27.5
1
30.5
0.9
34.5
0.8
39.5
0.7
ID letter:
R/S/U
Dimension (mm):Ø30 x 44
Material:
NBR
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
19.5
1
22
0.9
24.5
0.8
28
0.7
Part No.:
Part No.:
Part No.:
494.5206.009
494.5203.019
494.5203.031
ID letter:
V/L/D
Dimension (mm):Ø42 x 44
Material:
PVC
Depth of
immersion Weighing
h1(mm)
y (g/cm3)
25
1
27.5
0.9
30.5
0.8
35
0.7
ID letter:
N/P
Dimension (mm): Ø44 x 45
Material:
1.4571
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
32
1
35
0.9
39
0.8
45
0.7
ID letter:
E/F
Dimension (mm):
Ø52
Material:
1.4571
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
32
1
34
0.9
37
0.8
43
0.7
Part No.:
Part No.:
Part No.:
494.5215.029
494.2104.002
ID letter:
B/O
Dimension (mm):
Ø62
Material:
1.4571
Depth of
immersion Weighing
h1(mm)
y (g/cm3)
33
1
35
0.9
38
0.8
42
0.7
ID letter:
G/H
Dimension (mm):
Ø84
Material:
1.4571
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
33
1
35
0.9
38
0.8
42
0.7
Part No.:
Part No.:
232
494.2102.001
494.2101.004
494.2105.003
ID letter:
V/L/D
Dimension (mm):Ø52 x 55
Material:
PVC
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
29
1
32
0.9
36
0.8
42
0.7
ID letter:
N/P
Dimension (mm):Ø52 x 55
Material:
1.4571
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
33
1
36
0.9
40.5
0.8
46
0.7
Part No.:
Part No.:
494.5216.032
Sensors
Adjustable
floats
494.2299.023
Miniature
floats
ID letter:
K1
Dimension (mm):Ø25 x 21
Material:
PP
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
12
1
13
0.9
14.5
0.8
16.5
0.7
ID letter:
K2
Dimension (mm):Ø25 x 21
Material:
PVC
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
15
1
16
0.9
18.5
0.8
–
0.7
ID letter:
K4
Dimension (mm):Ø23 x 25
Material:
NBR
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
16
1
17.5
0.9
19.5
0.8
22
0.7
Part No.:
Part No.:
Art.-Nr.:
494.5207.021
494.5207.022
ID letter:
K3
Dimension (mm):Ø20 x 20
Material:
NBR
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
15
1
17
0.9
–
0.8
–
0.7
ID letter:
N1
Dimension (mm):
Ø30
Material:
1.4571
Depth of
immersion
Weighing
h1(mm)
y (g/cm3)
18
1
19
0.9
21
0.8
24
0.7
Part No.:
Art.-Nr.:
494.5210.020
494.5211.024
494.2109.018
233
Technical data
Standard
magnetic float
switches
Electrical data
Changeover contact/normally-closed contact/normally-open contact
K
250 V AC/DC
0.5 A
30 VA
Changeover contact/normally-closed contact/normally-open contact
L
250 V AC/DC
1A
60 VA
Container connection options
Flange enclosures RD 120 mm
Flange enclosures RD 77 mm
Flange enclosures RD 165 mm
Flange enclosures RD 185 mm
Cable gland PG 9
Cable gland R3/8''
Cable gland R1/5'' with plug connection DIN 43650
Oval flange 75 x 50 mm with plug-in connec.
DIN43650
Flange enclosures RD 120 mm
Flange enclosures RD 77 mm
Flange enclosures RD 165 mm
Flange enclosures RD 185 mm
Cable gland Pg 9
Cable gland R3/8''
Cable gland R1/5'' with plug connection DIN 43650
Oval flange 75 x 50 mm with plug-in connec.
DIN43650
Materials switching tube
Stainless steel 1.4571
MS 63
PVC
Stainless steel 1.4571
MS 63
PVC
Float variants
A / M / K Cylinder floats
T / C / I Cylinder floats
V/D
Cylinder floats
R / SCylinder floats
N/P
Cylinder floats
E /F
Ball floats
B /O
Ball floats
G /H
Ball floats
Switching function
Contact ID letter
Rated voltage (max).
Rated current (max.)
Switching capacity (max.)
Mechanical data
RD
RD
RD
RD
RD
RD
RD
RD
40
30
42
30
44
52
62
84
x 27 mm (POM)
x 44 mm (PP)
x 44 mm (NBR)
x 44 mm (NBR)
x 45 mm (stainless steel)
mm (stainless steel)
mm (stainless steel)
mm (stainless steel)
A / M / K Cylinder floats
T / C / I Cylinder floats
V/D
Cylinder floats
R / SCylinder floats
N/P
Cylinder floats
E /F
Ball floats
B /O
Ball floats
G /H
Ball floats
RD
RD
RD
RD
RD
RD
RD
RD
40
30
42
30
44
52
62
84
x 27 mm (POM)
x 44 mm (PP)
x 44 mm (NBR)
x 44 mm (NBR)
x 45 mm (stainless steel)
mm (stainless steel)
mm (stainless steel)
mm (stainless steel)
Ambient conditions
Protection type (DIN 40050)
Temperature range
Pressure
234
IP 65 (up to IP 68, on request)
-5°C to 60°C (from -30°C to 150°C, on request)
5 bar (up to 25 bar, on request)
IP 65 (up to IP 68, on request)
-5°C to 60°C (from -30°C to 150°C, on request)
5 bar (up to 25 bar, on request)
Technical data
Sensors
Miniature
magnetic float
switches
Electrical data
Normally-closed contact / normally-open contact
B
250 V AC/DC
0.5 A
10 VA
Changeover contact/normally-closed contact/normally-open contact
X
100 V AC/DC
0.3 A
3 VA
Container connection options
Cable
Cable
Cable
Cable
Cable
Cable
Cable
Cable
Materials switching tube
Stainless steel 1.4571
PP
PVC
MS 63
Float variants
K1 / Cylinder floats
K2 / Cylinder floats
K3 / Cylinder floats
K4 / Cylinder floats
N1 / Ball floats
Switching function
Contact ID letter
Rated voltage (max).
Rated current (max.)
Switching capacity (max.)
Mechanical data
gland
gland
gland
gland
Pg 7
R1/8''
R3/8''
R3/8'' with plug
gland
gland
gland
gland
Pg 7
R1/8''
R3/8''
R3/8'' with plug
Stainless steel 1.4571
PP
PVC
MS 63
RD
RD
RD
RD
RD
25
25
20
23
30
x 20 mm (PP)
x 20 mm (PVC)
x 20 mm (NBR)
x 25 mm (NBR)
mm (stainless steel)
K1 / Cylinder floats
K2 / Cylinder floats
K3 / Cylinder floats
K4 / Cylinder floats
N1 / Ball floats
RD
RD
RD
RD
RD
25
25
20
23
30
x 20 mm (PP)
x 20 mm (PVC)
x 20 mm (NBR)
x 25 mm (NBR)
mm (stainless steel)
Ambient conditions
Protection type (DIN 40050)
Temperature range
Pressure
IP 65 (up to IP 68, on request)
-5°C to 60°C (from -30°C to 150°C, on request)
5 bar (up to 15 bar, on request)
IP 65 (up to IP 68, on request)
-5°C to 60°C (from -30°C to 150°C, on request)
5 bar (up to 15 bar, on request)
235
Technical data
Adjustable
magnetic float
switches
Electrical data
Contact ID letter
Switching module type
Part No.
Switching function
Rated voltage (max).
Rated current (max.)
Switching capacity (max.)
P
REEDK. KPL. F. MA
491.0007.069
Normally-open contact / normally-closed contact
250 V AC/DC
5A
250 VA
(bi)
L
REEDK. KPL. F. MA
491.6007.075
Changeover contact
250 V AC/DC
1A
60 VA
(bi)
Mechanical data
Container connection options
Flange DN 50 (PVC / stainless steel)
Flange DN 65 (PVC / stainless steel)
Cable gland R1.5'' (PVC / stainless steel)
Cable gland R2'' (PVC / stainless steel)
Flange encl. RD 120 mm (with gush protect. possible)
Flange DN 50 (PVC / stainless steel)
Flange DN 65 (PVC / stainless steel)
Cable gland R1.5'' (PVC / stainless steel)
Cable gland R2'' (PVC / stainless steel)
Flange encl. RD 120 mm (with gush protect. possible)
Materials switching tube
Stainless steel 1.4571
MS 63
PVC
Stainless steel 1.4571
MS 63
PVC
Float variants
N / PCylinder floats RD 52 x 55 mm (stainless steel)
V / D / L Cylinder floats RD 52 x 55 mm (PVC)
N / PCylinder floats RD 52 x 55 mm (stainless steel)
V / D / L Cylinder floats RD 52 x 55 mm (PVC)
IP 65 (up to IP 68, on request)
-5°C to 60°C (from -30°C to 150°C, on request)
5 bar (up to 15 bar, on request)
IP 65 (up to IP 68, on request)
-5°C to 60°C (from -30°C to 150°C, on request)
5 bar (up to 15 bar, on request)
Ambient conditions
Protection class (DIN 40050)
Temperature range
Pressure
236
Technical data
Chemical reistance of
float and switching tube
material at +20 °C
Conc. in %
100
10
10
85
10
100
100
100
100
100
100
10
100
10
100
–
100
10
10
10
80
20
90
10
–
5
10
1
10
10
100
10
100
10
10
10
10
40
10
10
100
5
65
10
10
2
100
10
98
2
1
100
100
–
10
POM
+
/
/
+
+
/
O
+
/
+
+
/
+
+
+
/
/
O
O
+
O
+
+
/
/
/
/
+
/
/
U
+
+
/
+
+
/
/
U
+
/
/
U
U
U
U
+
+
U
/
+
+
O
/
/
PP
+
+
+
+
+
+
O
+
U
U
U
+
O
+
+
+
U
+
+
+
+
+
+
+
+
+
+
+
/
+
U
+
+
+
+
+
+
O
+
+
+
+
U
O
+
+
U
+
O
+
+
U
O
+
+
NBR
U
+
+
U
U
U
U
U
U
+
O
+
U
+
U
U
U
U
+
U
U
+
+
+
+
O
+
O
+
+
U
O
+
U
+
+
+
U
U
O
+
+
U
U
U
U
U
+
U
+
+
U
U
+
+
PVC
U
+
+
+
O
U
U
/
U
+
U
+
U
+
U
O
U
+
+
+
+
+
+
+
U
+
+
+
+
+
O
+
+
O
+
+
+
+
+
+
+
O
+
+
+
+
U
+
O
+
+
O
U
+
+
MS63
+
U
U
U
U
O
+
+
/
+
+
+
/
U
/
U
+
U
U
U
U
O
+
/
/
U
/
/
U
U
/
O
+
U
O
O
+
O
/
U
U
U
U
U
U
U
+
U
U
O
+
+
O
O
U
1.4571
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
U
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
+
+
+
+
+
+
U
U
+
+
+
+
+
+
+
+
+
+ = Resistant
The material remains fully resistant to the
medium or is only minimally affected.
The effect of pressure and temperature
changes on the materials must be taken
into account.
O = Resistant with limitations
The material is affected by the medium;
sealing compounds well up.
If concentration, pressure, temperature,
durability and other influential factors are
restricted, application may be possible.
U = Non-resistant
The material may not be used in the
specified medium or at the given
temperature, unless under very clearly
defined preconditions.
/ = no data availabe
237
Sensors
Chemical substance
Acetone
Aluminium sulphate
Aluminium chloride
Formic acid
Ammonia
Aniline
Ethyl acetate
Sulphuric ether
Ethylene chloride
Petrol
Benzene
Boracic acid
Butyl acetate
Calcium chloride
Chlorobenzene
Chlorine water
Chloroform
Chromic acid
Iron dichloride
Acetic acid
Acetic acid
Formaldehyde
Glycerine
Urea
Tincture of iodine
Potassium bichromate
Potassium nitrate
Potassium perman.
Bluestone
Magnesium chloride
Methylene chloride
Lactic acid
Mineral oil
Sodium bisulphite
Soda ash
Sodium chloride
Sodium sulphate
Oxalic acid
Phenolic aqueous
Phosphoric acid
Mercury
Mercuric chloride
Nitric acid
Nitric acid
Hydrochloric acid
Hydrochloric acid
Carbon disulphide
Sulphuric acid
Sulphuric acid
Hydrogen sulphide
Soap solution
Carbon tetrachloride
Trichloroethylene
Wine
Zinc chloride
FAX
Order form and questionnaire
for magnetic float switches
Page
__________ from _________
Date: ________________________
Standard tube diameter 12 mm
Adress:
Sender:
Company:
Customer No.:
Bernstein AG
Tieloser Weg 6
D-32457 Porta Westfalica
Contact:
Department:
Phone: +49-(0)5 71/7 93-0
Street:
Fax: +49-(0)5 71/7 93-5 55
Town:
Phone:
Fax:
Type
Position
O Enquiry
_____ pieces
O Order
_____ pieces
_____| _____| _____| _____| _____| _____| _____| _____| _____| _____| _____| _____| _____
1
2
3
4
5
6
7
8
9
10
11
12
13
Operational environment:
Pressure: ______ bar
Temperature: __________°C
Container dimens.: ______mm
Medium: _____________
Cable length: ______m
Separate contact type O
Mounting options:
O
from above
O
from below
O
lateral
Switching function
(fulling level)
Other comments:
S = Normally-open
Ö = Normally-closed
U = change over
238
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