Model C Precision Multi-Turn Potentiometer
1-13/16" Diameter, 3-Turn Wirewound Element
|
|
|
Features: |
• |
3-Turn Wirewound element |
• |
±3% Resistance Tolerance Standard |
• |
±0.5% Independent Linearity Standard |
• |
1/4" Shaft; 3/8" Bushing |
• |
Up to 3 Gangs |
|
Options: |
• |
Center Tap |
• |
Rear Gang Extension |
• |
External Panel and Shaft Seal Options. More information |
|
|
Model Styles
|
Model C
|
1/4" Shaft, 3/8" Bushing |
|
|
|
Electrical Specifications
|
Resistance Range
|
5 to 194.7K Ohms |
Resistance Tolerance
|
<100 Ohms = ±5% ≥100 Ohms = ±3%
|
Independent Linearity
|
±0.50% (Standard); up to ±0.10% available
|
Power Rating
|
3.0 Watts at 40°C derating to 0 Watts at 85°C
|
Input Voltage
|
1,000Vdc maximum (not to exceed power rating)
|
Dielectric Strength
|
1,000V rms
|
Insulation Resistance
|
1,000 Megohms minimum |
Noise, maximum
|
500 Ohms: RT ≤ 800 Ohms 250 Ohms: RT > 800 Ohms |
Actual Electrical Travel
|
1080° +4° -0°
|
Tap Tolerance
|
≤ 25 Ohms = ±2°
< 100 Ohms = ±1.5°
≥ 100 Ohms = ±1.0°
|
End Voltage (% of input voltage) |
<100 Ohms = 1% >100 Ohms = .5% |
|
|
|
Mechanical Specifications
|
Total Mechanical Travel
|
1080° +4° -0° |
Number of Gangs
|
3 maximum
|
Weight
|
2.5 oz. Nominal (single gang) |
Static Stop Strength
|
350 oz.-in.
|
Backlash
|
1°
|
Panel Nut Tightening Torque
|
25 lb.-in. maximum
|
Shaft End Play
|
.005" maximum |
Shaft Runout
|
.0005" T.I.R. maximum
|
Pilot Diameter Runout
|
.002" T.I.R. maximum
|
Lateral Runout
|
.003" T.I.R. maximum
|
Shaft Radial Play
|
.004" maximum
|
Start/Run Torque
|
3.0 oz.-in. maximum (per gang) |
|
|
|
Environmental Specifications (MIL-R-12934)
|
Temperature Range
|
Static: -65°C to +85°C Dynamic: -40°C to +85°C
|
Temperature Cycling
|
5 cycles, -65°C to +85°C (5% ΔR)
|
Shock
|
10G's, 10 to 500 Hz (5% ΔRT; 0.1ms discontinuity max.)
|
Vibration
|
6 hours, 10 to 55 Hz (5% ΔR, 0.1ms discontinuity max.)
|
Moisture Resistance
|
Ten 24 hour cycles (3% ΔR)
|
High Temp Exposure
|
1,000 hours at 85°C (5% ΔR)
|
Rotational Load Life
|
2 mil. shaft rev. + 900 hrs. at rated wattage at 40°C (5%ΔR)
|
|
|
|
|
|
|