BEI Sensors 1221-1821 Series Rotary Motion Precision Sensor

Description

MODELS 1221 / 1321 / 1521 / 1621 / 1721 / 1821

Features

Servo Model / Ball Bearing
7/8” to 3” Diameter Servo Mount
Conductive Plastic Single-turn Precision Potentiometers

Additional information

Brand	Bei Sensors

About Bei Sensors

BEI Sensors is specialized in reliable position sensing products for harsh environments. BEI Sensors can provide a wide selection of products for any tough application, from basic off-the-shelf to entirely bespoke solutions. BEI Sensors provides a wide product portfolio, engineering experience, and unmatched product support to the industrial, military/aerospace, and transportation markets. Its product line includes rotary and linear position sensors, potentiometers, Hall Effect sensors, absolute and incremental encoders, panel controls, electronic interface modules.

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Specification

Description	1221	1321	1521	1621	1721	1821
Actual Electrical Travel	320°	320°	340°	340°	350°	350°
Normal Resistance Range	400Ω to 25K	500Ω to 35K	700Ω to 45K	900Ω to 60K	1.2KΩ to 75K	2KΩ to 125K
Extended Resistance Range	400Ω to 75K	500Ω to 100K	500Ω to 125K	500Ω to 150K	600Ω to 200K	750Ω to 300K
Resistance Tolerance: Standard %	±10	±10	±10	±10	±10	±10
Best Practical %	±5	±5	±5	±5	±5	±5
Power Rating At 70°C, Derating to 0 At 125°C (Watts)	0.5	0.75	1.0	1.5	2.0	3.0
Linearity, Independent, Tolerance, Standard %	±0.5	±0.4	±0.3	±0.25	±0.2	±0.15
Best Practical %	±0.2	±0.15	±0.10	±0.075	±0.06	±0.04
Output Smoothness Max. (% Of Total Applied Voltage)	0.1
End Voltage Max. (% Of Total Applied Voltage)	0.5
Insulation Resistance At 500 VDC, Min. (Megohms)	1000
Dielectric Withstanding Voltage (Volts RMS)	1000
Max. Applied Voltage(Volts DC)	400
Temperature Coefficient Of Potentiometer, Max. % / °C	±.007