Products
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Absolute Linear Encoders, RF25X Series
Application domain
Absolute encoders
are designed for measuring and checking
of displacements, dimensions,
runouts, surface profiles and
deformations of technological objects.
Operating principle
Operation of the sensors is based on
the principle of photoelectric scanning of special scale,
connected with a measurement tip of the sensor. Radiation of a
LED 1 is collimated by a lens 2 and is directed on a scale 3.
The image of area of the scale is examined by CMOS array 4 and
is analyzed by signal processor which calculates position of the
scale.
As compared with incremental sensors, absolute sensors have a
number of advantages: the absolute position of the gage plug is
determined immediately after power is on and the necessity of
search of the reference mark is excluded.
Also excluded is the probability of accumulation or loss of
count pulse signals in case of impacts, vibrations and reverse
motion
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Performance specification
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Model |
RF251-25 |
RF256-15 |
RF256-35 |
RF256-55 |
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Measurement range, mm
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25 |
15 |
35 |
55 |
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Accuracy (at
Ò=20
0Ñ),
um
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±
2, ±
1 (for the sensors with "Ð"
index) |
±
2, ±
1 (for the sensors with "Ð"
index) |
±
2, ±
1 (for the sensors with "Ð"
index) |
±
3,
±
2 (for the sensors with "Ð"
index) |
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Resolution, um
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0,1 or 0,5 or 1 |
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Output
interface |
digital |
RS485
or RS232 |
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analog |
0…20
ìÀ
(<500 Om load) or 0…10
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Logical outputs
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two outputs, NPN: 100 mA max; 40 V max |
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Power consumption, W |
0,75 |
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Operation temperature,
°Ñ
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-10…+50 |
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Weight (without cable) ,g |
110 |
110 |
150 |
180 |
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Products
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RIFTEK, 22, Logoiski trakt,
220090, Minsk, Republic of Belarus
Tel./fax +375 /17/ 281-35-13, tel +375 /29/
655-72-55
e-mail: info@riftek.com |
2001-2009
Design of Riftek |
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