1221-1821 Series Rotary Motion Precision Sensor
Position Sensors & Encoders
MODELS 1221 / 1321 / 1521 / 1621 / 1721 / 1821
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Contact UsFeatures
- Servo Model / Ball Bearing
- 7/8” to 3” Diameter Servo Mount
- Conductive Plastic Single-turn Precision Potentiometers
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Specifications
| 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 | |||||
