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 Cost Effective High Accuracy Decade Box
Data Sheet | Manual |
HARS Series Resistance Decade Box
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Our HARS Series is the best choice when you need a laboratory grade, tight tolerance, high performance resistance decade box that is also cost effective.
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- Resistance from 1 mΩ to 111 MΩ
- Excellent stability - 10 ppm/yr, 25 ppm/ 3 yrs
- Wide choice - single through 11 decade units
- High accuracy - 0.01% (100 ppm)
- HARS-X: ±(0.01% + 2 mΩ)
- HARS-B: ±(0.1% + 4 mΩ)
- Very low zero resistance: <1 mΩ per decade
- High performance solid silver alloy switches
- Low temperature coefficient - 5 ppm/°C
- Noninductive or low inductance resistors
- Rack mounting available
- Special and custom configurations available
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Resistance |
Total |
Stability |
Long Term |
Temperature |
Max. |
Maximum |
Maximum |
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per |
Decade |
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Stability |
Coefficient |
Power |
current |
voltage |
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Step |
Resistance |
(±ppm/year) |
(±ppm/3 years) |
(±ppm/°C) |
(W/step) |
(per decade) |
(per step) |
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1 mΩ |
10 mΩ |
100 |
700 |
50 |
0.04 |
8:00 AM |
5 mV |
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10 mΩ |
100 mΩ |
50 |
350 |
20 |
0.2 |
4:00 AM |
40 mV |
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100 mΩ |
1 Ω |
30 |
50 |
20 |
0.25 |
1.6 A |
0.16 V |
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1 Ω |
10 Ω |
10 |
25 |
20 |
0.6 |
0.8 A |
0.8 V |
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10 Ω |
100 Ω |
10 |
25 |
15 |
0.6 |
0.25 A |
2.5 V |
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100 Ω |
1 kΩ |
10 |
25 |
5 |
0.6 |
80 mA |
8 V |
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1 kΩ |
10 kΩ |
10 |
25 |
5 |
0.5 |
23 mA |
23 V |
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10 kΩ |
100 kΩ |
10 |
25 |
5 |
0.5 |
7 mA |
70 V |
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100 kΩ |
1 MΩ |
10 |
25 |
5 |
0.5* |
2.3* mA |
230 V* |
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1 MΩ |
10 MΩ |
10 |
25 |
10 |
0.5* |
0.7* mA |
700 V* |
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10 MΩ |
100 MΩ |
50 |
40 |
10 |
0.1* |
0.1* mA |
1000 V* |
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