POTENTIOMETER

POTENTIOMETER
A hybrid track potentiometer features a high wiper contact resistance,
therefore operational checks should be carried out only in the voltage
divider mode. A Hybrid track potentiometer should be used only as a
voltage divider, with a minimum wiper circuit impedance of 100 x track
resistance or 0.5M (whichever is greater). Operation with wiper
circuits of lower impedance will degrade the output smoothness and
affect the linearity. For variable resistor applications, only a Penny
& Giles wirewound potentiometer should be used.

Penny+Giles SLS 220 linear displacement sensors have a 10mm or 20mm
stroke range with spring loaded operation, a mounting flange to allow
easy installation and are contained within a high strength Nylatron®
housing which provides good chemical resistance and low weight. The
internal potentiometer assembly is protected to IP66. Suited to OEM and
process monitoring applications, this new sensor replaces Penny+Giles
HLP 220 model.
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    • The JC6000 will be introduced with the long life Penny & Giles
    conductive plastic potentiometer technology, offering both proportional
    analogue outputs with low current directional switching (two outputs in
    both X and Y axes). The option to supply with alternative 1 Amp rated
    micro-switches on each half axis is also available.         		Operating from 12 to 28 V DC, the M-5000/220 provides non-contact
    measurement over a nominal target range of 100 mm to 1 m (4” to 40”).
    Outputs include a 0 to 20 mA or 4 to 20 ma DC analog current loop, two
    independent setpoint switches, and echo status by both an LED indicator
    and an Echo Status Output switch. The system parameters and outputs are
    fully user programmable via an RS-485 data link, thereby eliminating
    the sealing and tampering problems associated with an adjustment
    potentiometer or pushbuttons. Some additional programmable features
    include: analog output slope, sampling rate, averaging of multiple
    target distance measurements, loss-of-echo time-out, and setpoint
    hysteresis.

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