Decade Resistance Boxes 008
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A versatile range of resistance boxes available in 5, 6 & 8 decades. High Accuracy and wide range 0.001 ohm to 11 Megohms are combined in a compact lightweight case. The switches have gold plated contacts to ensure a low contact resistance and negligible thermal emf.
Some models are particularly suited to Pt100 simulation with resolution as low as 0.001 ohm (0.0025°C).
High Accuracy Resistance Decade Boxes / 5, 6 & 8 Decades
Technical Specifications
Customer Comments
No comments have been made about this product. Be the first to let us know what you think.Key Features
High Accuracy 0.01% and High PerformanceSuitable for Pt100 Simulation
5, 6 and 8 Decades
Long Term Stability ± 20ppm/year
Low Temperature Co-efficient ± 3ppm/°C to + 85 °C
Gold Plated Switch Contacts and Solid Copper Input Terminals
Negligible Thermal e.m.f.s
Light Weight / Small Size
With Certificate of Conformity
In-House Test Figures Optional
Downloads
Please feel free to download any of the documents associated with this product.Technical Specification
| Model | Nç Decades | Total Resistance | Resolution Ω | Resolution °C when simulating Pt100 | Residual Resistance |
| 005-B | 5 | 1,112.10 ohm | 0.01 | 0.025 | 1 ohm |
| 006-A | 6 | 1,112.11 ohm | 0.001 | 0.0025 | 1 ohm |
| 006-B | 6 | 11,112.10 ohm | 0.01 | 0.025 | 1 ohm |
| 006-C | 6 | 111,111 ohm | 0.1 | N/A | 70 milliohm |
| 008-A | 8 | 111,112.11 ohm | 0.001 | 0.0025 | 1 ohm |
| 008-B | 8 | 1,111,112.1 ohm | 0.01 | 0.025 | 1 ohm |
| 008-C | 8 | 11,111,111 ohm | 0.1 | N/A | 80 milliohm |
| 008-C | 008-B | 008-A | 006-C | 006-B | 006-A | 005-B | Decade | Accuracy | Current Max |
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| 10 x 0.001 Ω | ± 2% | 1.4 A |
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| ✓ | ✓ | | ✓ | ✓ | ✓ | 10 x 0.01 Ω | ± 1% | 1.4 A |
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 10 x 0.1 Ω | ± 0.5% | 1.4 A |
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 10 x 1 Ω | ± 0.1% | 300 mA |
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 10 x 10 Ω | ± 0.01% | 100 mA |
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 10 x 100 Ω | ± 0.01% | 30 mA |
| ✓ | ✓ | ✓ | ✓ | ✓ | | | 10 x 1 kΩ | ± 0.01% | 18 mA |
| ✓ | ✓ | ✓ | ✓ | | | | 10 x 10 kΩ | ± 0.01% | 5 mA |
| ✓ | ✓ | | | | |
| 10 x 100 kΩ | ± 0.01% | 1.8 mA |
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| 10 x 1 M Ω | ± 0.01% | 0.5 mA |
| Switches | Contact material gold plated brass Contact Resistance <5 m W Insulation Resistance (all paths > 1012 Ω) Proof Voltage 1 kV |
| Resistance Coils | Temperature Co-efficient Full Load Stability No Load Stability |
| Power Rating | 0.33 watt (+85 °C) 0.25 watt (+110 °C) |
| Maximum Continuous Working Voltage | Up to 250V DC |
| Noise | Essentially non-measurable <1.5µV/µ°C max |
| Thermal EMF | <0.4µV/°C typical |
| Encapsulation | Moulded Epoxy |
| Leads | 22 SWG tinned copper |
| Windings | Exclusive 'air cushion' technique provides virtually stressless elements for improved performance. Non inductively wound. Direction of winding reversed at half turns point. |
| Size | 350 x 100 x 80 mm |
| Weight | <1 kg NAMAS Certification Optional |
