Model 7246 Precision Multi-Turn Potentiometer
7/8" Diameter, 10-Turn Wirewound Element
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10-Turn Wirewound element |
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±5% Resistance Tolerance Standard |
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±0.25% Independent Linearity Standard |
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1/4" Metal Shaft, 3/8" Bushing |
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Model
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7246
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1/4" Metal Shaft, 3/8" Bushing |
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Electrical Specifications
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Resistance Range
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10 to 125K Ohms |
Resistance Tolerance
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±5% Standard; up to ±3% available
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Independent Linearity
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±0.25% (Standard); up to ±0.15% available
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Power Rating
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2.0 W at 25°C derating to 0 W at 85°C
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Dielectric Strength
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1,000V rms
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Insulation Resistance
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1,000 Megohms minimum |
Noise
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100 ohms maximum |
Actual Electrical Travel
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3600° +10° -0° |
Tap Tolerance
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±5°, ≤20 Ohms
±3°, 21-50 Ohms
±2°, >50 Ohms |
End Voltage (% of input voltage)
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0.5% of input voltage max. (<100 Ohms)
0.25% of input voltage max. (≥100 Ohms)
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Mechanical Specifications
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Total Mechanical Travel
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3600° +10° -0° |
Number of Gangs
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1 maximum
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Weight
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1.25 oz. Nominal |
| Static Stop Strength |
60 oz.-in. |
Backlash
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2° maximum
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Panel Nut Tightening Torque
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25 lb.-in maximum
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Shaft End Play
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.015" maximum
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Shaft Radial Play
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.005" maximum
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Start/Run Torque
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0.8 / 0.6 oz.-in. maximum
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Environmental Specifications (MIL-R-12934)
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Temperature Range
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Static: -25°C to +85°C
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Temperature Cycling
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5 cycles, -25°C to +85°C (10% ΔR)
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Shock
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50G's, 6ms Sawtooth
(0.1ms discontinuity maximum)
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Vibration
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10G's, 10 to 500 Hz
(2% ΔR, 0.1ms discontinuity maximum)
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Moisture Resistance
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Five 24 hour cycles (25% ΔR)
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High Temp Exposure
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Mechanical Operation at 85°C (0.5% ΔR)
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Rotational Load Life
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1 mil. shaft rev. (10% ΔR)
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