High Precision and Resolution
SPECIFICATIONS – SERIES K-175, HK 175, K-200
HP Series 200, 300, 500 High Precision • K Series 75, 175 High Resolution
AL 200 High Precision
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Power Rating: |
Series k-175 and HK-175, 3 watts; K-200, 4 watts. |
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Rotation: |
Mechanical, continuous; electrical, 356• ±1• std. Mechanical stops available. |
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Rotational Life: |
Over 1,000,000 cycles. |
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Taps: |
Any practical number. Standard tolerance ±1/2. |
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Contact Materials: |
Precious metal brush, collector and tap contacts. Gold plated slip ring and terminals. |
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Resistance Element: |
Linear, on triole Formvar covered copper mandrel. Standard resistance tolerance, ±5%; ±1% on order. |
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*Independent Linearity: |
±0.5% of total resistance is standard, ± 0.1% on special order. |
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Bearing: |
Stainless steel ball bearings (Model K-200, HK-175 and K-175). sleeve bearings (MOdels KS-200 and KS-175). |
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Shaft: |
2495 to .2498 diameter stainless steel, passivated for maximum corrosion resistance. Special Designs and Lengths to Order. |
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Case: |
Fungus resistant Bakelite shell. Aluminum end plates, Alumilite finish. (HK-175, aluminum). |
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Unit Weight : |
4 oz. |
| K-175, K-200 TYPICAL RESOLUTION VALUES |
| Ohms |
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5K |
10K |
25K |
50K |
| Approximate
Total Turns |
K-175 |
1558 |
1790 |
2500 |
3115 |
| K-200 |
1773 |
2120 |
2860 |
3520 |
* Independent Linearity is the deviation in percent of the total measured resistance of the actual resistance at any point, from the best straight line drawn through the resistance at any point, from the best straight line drawn through the resistance vs. rotation curve. The slope and position of the line can be adjusted to make these deviations minimum.
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