OLM Series - First Sensor

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
ELECTRICAL CONNECTION
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
Red
1
White
4
Black
3
15 mA
25 mA
10 mA
800 mA
+VS
Output
GND
-25 to 80°C
-40 to 125°C
25 bar
up to IP 68
* 10 mA sink current, source current depends on VS and RL
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OLM Series
High performance optical liquid level switches
PERFORMANCE CHARACTERISTICS
Characteristics
Min.
Typ.
Repeatability
Max.
Unit
±1
Hysteresis (depending on liquid)
mm
1
Response time rising liquid
Response time falling liquid (ethanol)
50
µs
1
s
ELECTRICAL CONNECTION (cont.)
Assigment
+VS
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)
Red
TTL compatible (low in air)
+VS
Red
+VS
White
Output
Black
GND
4.7
White
Black
Output
GND
Push-Pull (current sinking and sourcing)
E / 11636 / B
Red
+VS
White
Output
Black
GND
RL
RL
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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
M12 connector
57.4
72.9
G 1/2 (BSP) or
1/2 NPT thread
24
3
38
53.50
3-core 22 AWG wire
mass: approx. 115 g
dimensions in mm
Note: Do not mount the sensor with prism pointing downwards.
The prism should be at least 10 mm away from any infrared-reflecting surface.
ORDERING INFORMATION
Output
Series
Current
Options
OLM
Type
Tip material Housing type
Temperature
Termination
P
2
D
Function
01T
10 mA
TTL
compatible
0
Low
i n ai r
80U
800 mA
Push-Pull
1
High
i n ai r
Polysulphone
S
G 1/2
(BSP)
T
1/2 NPT
-25...80 °C
M12 x 1
(IP67)
4* -40...125 °C M Cable, 3m
(IP67)
* not available for
...01T0... versions
Example:
OLM
80U
0
P
S
2
D
First Sensor reserves the right to make changes to any products herein. First Sensor 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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