RBB
Resistance Decade 0.05% |
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RBB Data Sheet
Click to view in PDF format (49KB)
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4, 5 and 6 Decades Available
Total Range 11.111 MΩ
Smallest Steps 0.001Ω
Special Waidner Wolff Decade Minimises Switch Contact Resistance
Accuracy 0.05% for premium dials
Resistance Coils Wound in Selected Low TC Wire
Special Models for Pt100 Simulation
Special Model for Insulation Simulation
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Combining high quality, long life and permanence of
calibration, the RBB Series offers an unbeatable selection of
models. The reliability is built in as we use our own designed
and manufactured switches combined with high quality wire wound
resistors. All units are supplied complete with certificate of
conformity and all measurements are of course traceable to
International Standards.
Special models are available for temperature (Pt100) and
insulation resistance simulation.
RBB Technical Specifications
|
Model
|
Number
of Decades
|
Total Resistance
|
Resolution
|
Residual Resistance
|
Size
|
Weight
|
|
RBB4-A
|
4
|
1,111 Ω
|
0.1 Ω
|
0.01 Ω
|
310x100x140
|
2.7 kg
|
|
RBB4-B
|
4
|
11,110 Ω
|
1 Ω
|
0.01 Ω
|
"
|
"
|
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RBB4-C
|
4
|
111,100 Ω
|
10 Ω
|
0.01 Ω
|
"
|
"
|
|
RBB5-B
|
5
|
1,112.1 Ω
|
0.01 Ω
|
1 Ω
|
384x100x140
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3.4 kg
|
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RBB5-C
|
5
|
11,111 Ω
|
0.1 Ω
|
0.012 Ω
|
"
|
"
|
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RBB5-D
|
5
|
111,110 Ω
|
1 Ω
|
0.012 Ω
|
"
|
"
|
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RBB5-E
|
5
|
1.1111 MΩ
|
10 Ω
|
0.012 Ω
|
"
|
"
|
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RBB5-F
|
5
|
11.111 MΩ
|
100 Ω
|
0.012 Ω
|
"
|
"
|
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RBB6-B
|
6
|
1,112.11 Ω
|
0.001 Ω
|
1 Ω
|
450x100x140
|
3.85 kg
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RBB6-C
|
6
|
11,112.1 Ω
|
0.01 Ω
|
1 Ω
|
"
|
"
|
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RBB6-D
|
6
|
111,111 Ω
|
0.1 Ω
|
0.013 Ω
|
"
|
"
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RBB6-E
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6
|
1.11111 MΩ
|
1 Ω
|
0.013 Ω
|
"
|
"
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RBB6-F
|
6
|
11.1111 MΩ
|
10 Ω
|
0.013 Ω
|
"
|
"
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ACCURACY
|
Decade (Ohms)
|
Accuracy of Adjustment Incremental Steps
|
Power Rating
|
Temperature
Coefficient
|
|
10 x 1 MΩ
|
± 0.1%
|
0.5 W
|
10 ppm/°C
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10 x 100 kΩ
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± 0.1%
|
0.5 W
|
10 ppm/°C
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10 x 10 kΩ
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± 0.05%
|
0.33 W
|
3 ppm/°C
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10 x 1 kΩ
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± 0.05%
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0.33 W
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3 ppm/°C
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10 x 100 Ω
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± 0.05%
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0.33 W
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3 ppm/°C
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10 x 10 Ω
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± 0.05%
|
0.33 W
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3 ppm/°C
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10 x 1 Ω
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± 0.2%
|
0.33 W
|
3 ppm/°C
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10 x 0.1 Ω
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± 0.5%
|
0.75 W
|
10 ppm/°C
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10 x 0.01 Ω
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± 1%
|
0.75 W
|
10 ppm/°C
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10 x 0.001 Ω
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± 2%
|
0.75 W
|
10 ppm/°C
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10 x 0.0001 Ω
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± 10%
|
0.75 W
|
10 ppm/°C
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