Optical sensors for hostile environments
December 2001
Sensors & Transducers
The 3000 series of optical sensors offer high tolerance to hostile environments. The series consists of a low-cost self-contained transmitter SMT and a receiver SMR which are to be used in through-beam mode. The complete series is available in a wide range of housings with either cable or plug connection.
The SMR is supplied with a 10-30 V d.c. supply voltage with a three-wire, NPN or PNP transistor output with a choice between light or dark function.
The control input in the SMT may be used for either disabling or enabling the transmitting power temporarily for test purposes, multiplexing applications or as a gradula regulation of the transmitting power level. Both the transmitter and receiver are protected against reverse polarity.
Telco Gail Norton Instrumentation
(031) 701 4861
[email protected]
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