- Resistance from 10 Ω to 100 GΩ
- High-accuracy: up to .01%, 3 Accuracy Classes Available
- Voltage up to 2000 V
- Excellent TC: as low as 5 ppm/°C
- Low voltage coefficient: as low as 0.2 ppm/V
- High-performance solid silver-alloy switches
- Rack mounting available
The High Resistance (HRRS Series) is an economical, high-performance, high-resistance decade box for all laboratory, test, and calibration needs. The High-resistance design is implemented with special resistors, switches, binding posts, and construction-design to allow high resistance performance without sacrificing other electrical properties. These instruments are useful wherever small currents and high resistances are required,
The HRRS Series employs state-of-the-art precision resistors of various types for high accuracy, high stability, and low temperature and voltage coefficients. The standard models offer a choice of one to seven decades. For custom units, models up to 11 decades are available . For higher voltage or higher resistance, models up to >10 kV and 10 TΩ are also available in the HRRS-5kV & -10kV Series.
The binding posts are for the HRRS high resistance decade boxes are insulated with Kel-F high-resistance, non-moisture-absorbing material ensure low leakage.
With a resolution as low as 10 Ω and a maximum available resistance of over 100 G&Omega, the HRRS Series may be used for exacting precision high-value resistance applications.
The HRRS series decade box complements the HARS series which provides resistance steps as low as 1 mΩ. The units may be rack-mounted to serve as components in measurement and control systems.
HRRS High Resistance Decade Box Applications
- calibration of meters and megohmmeters,
- checking of electrochemical and biomedical sensors and instruments.
- testing high-impedance amplifiers and the insulation of low-power circuits.
HRRS Basic Specifications
|
Resistance per step
|
Total decade resistance
|
Accuracy
|
Max voltage per step (V)
|
Maximum Voltage (V)
|
Temperature coefficient (ppm/C)
|
Voltage coefficient (ppm/V)
|
Stability (ppm/yr)
|
Resistor Type
|
|
Q
|
B
|
F
|
| 10Ω |
100Ω |
0.01% |
0.03% |
0.10% |
2.5 |
25 |
15 |
0 |
10 |
Wirewound, non-inductive |
| 100Ω |
1kΩ |
0.01% |
0.03% |
0.10% |
8 |
80 |
5 |
0 |
10 |
Wirewound, non-inductive |
| 1kΩ |
10kΩ |
0.01% |
0.03% |
0.10% |
23 |
230 |
5 |
0 |
10 |
Wirewound, non-inductive |
| 10kΩ |
100kΩ |
0.01% |
0.03% |
0.10% |
70 |
700 |
5 |
0 |
10 |
Wirewound, non-inductive |
| 100kΩ |
1MΩ |
0.01% |
0.03% |
0.10% |
230 |
2000 |
5 |
0 |
10 |
Wirewound, non-inductive |
| 1MΩ |
10MΩ |
0.01% |
0.03% |
0.10% |
1000* |
2000 |
15 |
0.2 |
25 |
Metal-oxide film |
| 10MΩ |
100MΩ |
0.03% |
0.10% |
1% |
1000* |
2000 |
15 |
0.2 |
50 |
Metal-oxide film |
| 100MΩ |
1GΩ |
0.10% |
0.20% |
1% |
1000* |
2000 |
15 |
1.5 |
100 |
Metal-oxide film |
| 1GΩ |
10GΩ |
0.20% |
0.50% |
1% |
1000* |
2000 |
50 |
5 |
500 |
High-voltage film |
| 10GΩ |
100GΩ |
0.50% |
1% |
1% |
1000* |
2000 |
50 |
5 |
500 |
High-voltage film |
| 100GΩ |
1TΩ |
See HRRS-5kV Series for this model.
|
*To apply up to 2000 V for the first step, use the preceding decade at its "10" position. e.g. to obtain 1 MΩ with 2000 V max, set 100 kΩ switch to position "10."
