S142C, Proximity sensor

Description

Proximity sensor in a rectangular housing for non-contact measurement of displacement (differental rotor expansion) in range 0…50 mm, with an electronic unit built into the sensor housing. Output type: 4…20 mA DC, 3-wire connection. Operating temperature range from −40 to +110 °C.

Used in vibration monitoring channels of supports together with the controllers of the "Vibrobit 300" and "Vibrobit 500" systems.

Key features:

rectangular housing
standard temperature range
3-wire connection scheme
capable of handling collars ranging from 20 to 65 mm

Specifications

Measurement principle	eddy-current
Measured parameter	displacement
Compatibility with transducers	-
Measurement range	0 — 8; 0 — 15; 0 — 30; 0 — 35; 0 — 40; 0 — 45; 0 — 50 mm
Frequency range	-
Zero air gap	2.0±0.2 mm
Registry number	95100-25
Limits of permissible basic measurement error, %	±2.5 (displacement)
Calibration interval, years	1
Output type	4 — 20 mA DC
Load resistance, Ohm (max)	500
Connection diagram (number of lines)	3-wire
Power supply voltage range, VDC	+ (22 — 30)
Current consumption, (max) мА	55
Operating temperature range, °С	from −40 to +110
Housing index of protection according to GOST 14254	IP68
Resistance to external influencing factors GOST 30631–99	M7
Transducers connection type	РС7ТВ
Overall dimensions, mm	rectangular housing 1105024
Service life, years (min.)	10
Warranty period, months	36
MTBF, hours	200 000

Applications

Measurement of differental rotor expansion in steam, gas and hydraulic turbines during operation.

The sensor can be used both independently and as part of the measurement channels of the plant's SCADA systems.