OLM Series
High performance optical liquid level switches
FEATURES
· Solid state technology,
no moving parts
· TTL compatible or transistor output
· 10 mA or 800 mA output current
· Stainless steel housing
· High media compatibility
· Fast response, electrically robust
WETTED MATERIALS
Tip:
Housing:
Polysulphone
Stainless steel 304
SPECIFICATIONS
Maximum ratings
Supply voltage
OLM01T...
OLM80U...
Supply current
OLM01T...
OLM80U...
Output current
OLM01T...*
OLM80U...
Operating temperature range
OLM...2...
OLM...4...
Pressure range
Protection class
5...12 V
10...45 V
ELECTRICAL CONNECTION
Red
15 mA
25 mA
1
+V
S
Output
White
10 mA
800 mA
4
Black
3
GND
-25 to 80°C
-40 to 125°C
25 bar
up to IP 68
* 10 mA sink current, source current depends on V
S
and R
L
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OLM Series
High performance optical liquid level switches
PERFORMANCE CHARACTERISTICS
Characteristics
Repeatability
Hysteresis (depending on liquid)
Response time rising liquid
Response time falling liquid (ethanol)
Min.
Typ.
Max.
±1
1
50
1
Unit
mm
µs
s
ELECTRICAL CONNECTION (cont.)
Assigment
+V
S
N/C
GND
Output
Electrical Termination
M12 x 1
Cable, 3 m
(pin)
(lead colour)
1
Red
2
-
3
Black
4
White
TTL compatible (high in air)
TTL compatible (low in air)
Red
+V
S
4.7
Red
+V
S
Output
White
Output
White
Black
GND
Black
GND
Push-Pull (current sinking and sourcing)
Red
+V
S
Output
R
L
R
L
White
Black
GND
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OLM Series
High performance optical liquid level switches
OUTLINE DRAWING
G 1/2 (BSP) or
1/2 NPT thread
M12 connector
24
22.4
57.4
72.9
G 1/2 (BSP) or
1/2 NPT thread
M12 connector
24
3
38
53.50
mass:
approx. 115 g
3-core 22 AWG wire
dimensions in mm
ORDERING INFORMATION
Output
Series
Current
Options
OLM
01T
80U
10 mA
800 mA
Type
TTL
compatible
Push-Pull
Function
0
1
Low
i n ai r
High
i n ai r
P
Polysul-
phone
S
T
G 1/2
(BSP)
1/2 NPT
2
-25...80 °C
D
M12 x 1
(IP67)
Tip material Housing type
Temperature
Termination
4*
-40...125 °C
M
Cable, 3m
(IP67)
* not available for
...01T0... versions
Example:
OLM
80U
0
P
S
2
D
Note: Custom specific options are widely available!
Please contact your nearest Sensortechnics sales office for further information.
Sensortechnics reserves the right to make changes to any products herein. Sensortechnics does not assume any liability arising out of the
application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others.
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