OLS7 Series
Optical liquid level sensor 1/4”NPT mount
Low cost sensors for general liquid sensing
High reliability optical sensing
External mount via 1/4”NPT thread
Standard temperature range -25ºC to +80ºC
Extended temperature range -40ºC to +125ºC
High and Low output versions
T
echnical Specification
The OLS7 series is a liquid level sensor for
single point liquid level detection.
The sensor has an infra-red emitter and
detector aligned within an accurately
shaped cone to give good optical coupling
when the sensor is in air. This coupling is
greatly reduced, when the sensor is
immersed in liquid, as the infra-red light
escapes through the liquid rather than
being reflected back to the detector.
The sensor has a transistor output, so can
be configured by the user for particular
applications.
Mounting style
External
Mounting thread
1/4”NPT
Body material
Polysulfone UDEL 1700
Temperature Range
-25 to +80ºC/-40º to +125ºC
Maximum pressure
7bar
Tightening torque for fixing1.5Nm/13.26lbs in
Electrical Specification
Supply Voltage (Vs)
Vdc
Supply Current Max (Is) mA
Output type
Output Voltage (Vout) @ Iout=100mA
Output Sink & Source Current Iout
Cable length - standard
25cm
Wire size
24AWG
Cable conductor material Tinned copper
Wire sheath material
PTFE
Wire temperature rating
125ºC
Sealing gasket Not supplied
10 to 28
Output Low Vout = 0.5Vmax
1A
4.5 to 15.4
or
2.5 (Vs = 15.4Vdc)
Voltage High or Low
Output High Vout = Vs-1V max
100mA max
or
Sensor connections
Standard Parts
OLS700D3SH
OLS700D3LSH
OLS710D3SH
OLS710D3LSH
OLS710D324-003
OLS710D3L24-003
Red= supply +ve, Blue= common(0V), Green= Output
Mount
1/4”NPT
1/4”NPT
1/4”NPT
1/4”NPT
1/4”NPT
1/4”NPT
Temp Range ºC
-25 to +80
-25 to +80
-40 to +125
-40 to +125
-40 to +125
-40 to +125
Supply Volts V
5 to 15dc
5 to 15dc
5 to 15dc
5 to 15dc
10 to 28dc
10 to 28dc
Output
High in air
Volts
Low in air
Volts
High in air
Volts
Low in air
Volts
High in air Open drain
Low in air Open drain
Custom versions can be made for particular applications. Please contact Cynergy3 with your requirements.
Mechanical Dimensions
1/4”NPT Thread
Ø 10.40
9.40
23.40
1/4”NPT Thread
19 AF
Cynergy3 Components Ltd.
7 Cobham Road
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PE
Telephone +44 (0) 1202 897969
Email:sales@cynergy3.com
Ø 10.40
9.40
18
15
003 Open Drain version
ISO
9001
C E R T I F I E D
www.cynergy3.com
© 2012 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited.
OLS7 Series
Optical liquid level sensor 1/4”NPT mount
Installation
The sensor can be mounted in either the side or the bottom of a tank. It must not be mounted in the top of a tank with
the cone downwards.
This sensor requires a 1/4”NPT thread socket connection.
The sensor should be screwed into the 1/4”NPT socket but should not be overtightened.
Cleaning
Proper fluids should be selected based on the type of contamination to be removed. It is recommended that freon or
alcohol based solvents are used.
DO NOT USE chlorinated solvents such as trichloroethylene as these are likely to attack the sensor housing material.
Liquid Media Compatibility
Check that the fluid in which you wish to use the sensor is compatible with Polysulfone.
Installation in 1/4”NPT socket
1/4”NPT socket
Red wire =Vs
Green wire =Output
Blue wire = 0V
Output version 003 N-Channel Open Drain
to rest of sensor circuit
Din
V+
Load
Cynergy3 Components Ltd.
7 Cobham Road
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PE
Telephone +44 (0) 1202 897969
Email:sales@cynergy3.com
O/P
O/P
ISO
9001
C E R T I F I E D
www.cynergy3.com
© 2012 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited.
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