POS Series Liquid Level Sensor with NPN output

      POS Series Liquid Level Sensor with NPN output  
                       Model Number:  POS187311                           GENERAL DESCRIPTION
The POS liquid level sensor provides single point level detection via an NPN or PNP output.   When the sensor output is closed, the output sinks or sources up to a maximum of 200mA allowing incandescent indicators, sounder or relays to be driven directly by the device. M12 and cable connections are available as well as normally open (n.o.) and normally closed (n.c.) versions.
CLEANING
Proper fluids should be selected based on type of contamination to be removed. SST Sensing recommends freon and alcohol based solvents. DO NOT use chlorinated solvents such as tricholorethane as these are likely to attack the sensor material.
Liquid Media Compatibility
Before use check that the fluid in which you wish to use these devices is compatible with polysulphone.
ELECTRICAL & ENVIRONMENTAL SPECIFICATIONS

Sensor Family	POS187	POS287
Supply Voltage (Vs)	12 to 28Vdc
Supply Current (Is)	< 25mA
Output Sink/ Source Current (Io)	200mA max.
Operating & Storage Temperature	-25 to 100 °C (temperature of medium)	-40 to 140 °C (temperature of medium)
Protection Standard	IP68 (cable version) / IP67 (connector version)

MECHANICAL DETAILS

Sensor Family	POS187	POS287
Cable Type (POSXXX-3XX)	PUR 3 x 0.25mm2, 2m long
Cable Type (POSXXX-4XX)	M12 Connector
Dimensions	See drawings
Thread	G1/2''
Material	Stainless Steel housing/ Simax crystal glass sensing tip

OUTPUT TYPES
In order to suit any application, these sensors have been designed with various output circuit configurations. They are identified by a 2-digit code at the end of the part number and are as follows: BR = Brown, BK = Black, BL = Blue. Numbers indicate connector pin number. Note that normally open and closed
Conditions refer to the sensor being in air.