Cropico RBB Series

High accuracy decade boxes with versatile wide ohm range

- Total Range 11.111MΩ
- Accuracy 0.05% for premium dials
- Smallest Steps 0.001Ω

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Cropico RBB Series

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.

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.

Technical Specifications

RBB5 Series					RBB6 Series					Decade	Accuracy	Current Max mA
B	C	D	E	F	B	C	D	E	F	Decade	Accuracy	Current Max mA
					✔					10 x 0.001Ω	±2%	2000
✔					✔	✔				10 x 0.01Ω	±1%	2000
✔	✔				✔	✔	✔			10 x 0.1Ω	±0.5%	2000
✔	✔	✔			✔	✔	✔	✔		10 x 1Ω	±0.2%	600
✔	✔	✔	✔		✔	✔	✔	✔	✔	10 x 10Ω	± 0.05%	200
✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	10 x 100Ω	± 0.05%	60
	✔	✔	✔	✔		✔	✔	✔	✔	10 x 1kΩ	± 0.05%	20
		✔	✔	✔			✔	✔	✔	10 x 10kΩ	± 0.05%	6
			✔	✔				✔	✔	10 x 100kΩ	±0.1%	2
				✔					✔	10 x 1MΩ	±0.1%	0.6

Model	No. Decades	Total Resistance	Resolution	Suitable for Pt100 Simulation	Resolution °C when Simulating Pt100	Residual Resistance	Part Numbers
RBB5-B	5	1,112.1Ω	0.01	✔	0.025	1Ω	930171
RBB5-C	5	11,111Ω	0.1			0.012Ω	930172
RBB5-D	5	111,110Ω	1			0.012Ω	930173
RBB5-E	5	1.1111MΩ	10			0.012Ω	930174
RBB5-F	5	11,111MΩ	100			0.012Ω	930175
RBB6-B	6	1,112.11Ω	0.001	✔	0.0025	1Ω	930176
RBB6-C	6	11,112.1Ω	0.01	✔	0.025	1Ω	930177
RBB6-D	6	111,111Ω	0.1			0.013Ω	930178
RBB6-E	6	1.11111MΩ	1			0.013Ω	930179
RBB6-F	6	11.1111MΩ	10			0.013Ω	930180