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CMCP-VALVE Rotary Potentiometer Valve Position Sensor |
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Features:
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The working component of the CMCP-VALVE valve position transmitter is a precision long-life rotary potentiometer. Attached to the end of the steam valve control shaft on a large steam turbine, the Valve Position Transducer provides a voltage proportional to the valve’s position. The Valve Position Transducer is directly compatible with the CMCP-549 Valve Position Transmitter, which provides excitation voltage and outputs a 4-20 mA analog signal proportionate to the percentage of valve opening.
The output shaft is supported with a rolling-element bearing pressed into
the housing. The output shaft is connected to the potentiometer with a
torsionally rigid flex-coupling. This coupling compensates for minor offset
and/or angular misalignment, thereby reducing lateral loading on the
potentiometer. |
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Specifications:
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Resistance |
0 to 5,000Ω Over 345º |
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Maximum Input Voltage |
400 VDC |
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Power Rating |
1.0 Watt at 70ºC, Derating to 0 at 125ºC |
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Linearity |
+/-0.5% of F.S. |
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Usable Rotation |
335° |
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Output Smoothness |
0.1% |
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Temperature Coefficient |
+/- 100ppm/ºC |
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Rotational Life Expectancy |
25 Million Revolutions |
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Operating Temperature Range |
-65º to +125º C (-85º to +260ºF) |
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Vibration Range |
15 G’s Continuous (10 to 500 Hz), 100 G’s Shock |
Ordering Information:
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CMCP-VALVE |
Rotary Potentiometer Valve Position Sensor |
Download Data Sheet in PDF Format